diff --git a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.i18n.yaml b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.i18n.yaml
index d9b4a04671..88f510a4b0 100644
--- a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.i18n.yaml
+++ b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.i18n.yaml
@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
-#   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-29-addressable-queue-operations.md
-2026-07-29-addressable-queue-operations.md: 7a08b889c958e583dc430d33a1855fe3725f3d48
-2026-07-29-addressable-queue-operations.zh.md: 701b028c7494fd7cb608d05a5d170c9075b155d7
+#   pnpm run verify-translation-pairing --write
+2026-07-29-addressable-queue-operations.md: 258e4e4e50a4c6386a2e8c28402fe32cb8870e1a
+2026-07-29-addressable-queue-operations.zh.md: b4370d87892df2e0477c0897b45b4c7a1030978e
diff --git a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.md b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.md
index 7a08b889c9..258e4e4e50 100644
--- a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.md
+++ b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.md
@@ -1,6 +1,7 @@
 # Agent Note: Address pending queue occurrences for edit and removal
 
 Status: implemented
+Archived: 2026-07-31
 
 English | [中文](2026-07-29-addressable-queue-operations.zh.md)
 
diff --git a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.zh.md b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.zh.md
index 701b028c74..b4370d8789 100644
--- a/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.zh.md
+++ b/.agents/notes/archived/feature/2026-07-29-addressable-queue-operations.zh.md
@@ -1,6 +1,7 @@
-# Agent Note（agent 决策记录）：为待处理队列项提供编辑与移除操作
+# Agent Note: 为待处理队列项提供编辑与移除操作
 
 Status: implemented
+Archived: 2026-07-31
 
 [English](2026-07-29-addressable-queue-operations.md) | 中文
 
diff --git a/.agents/notes/archived/manifest.json b/.agents/notes/archived/manifest.json
index e46d7c34cd..3be8a47970 100644
--- a/.agents/notes/archived/manifest.json
+++ b/.agents/notes/archived/manifest.json
@@ -124,6 +124,9 @@
     "feature/2026-07-27-user-message-icon-actions.i18n.yaml": "sha256:b33e480f19ec58c8c60417a6c03999953d463ca54606a5ac80ec528edf57c49b",
     "feature/2026-07-27-user-message-icon-actions.md": "sha256:b6332e67c6dad0a3fcdb597cec9e4dc32b44ad33665f39c1a50501cf38d3f5ad",
     "feature/2026-07-27-user-message-icon-actions.zh.md": "sha256:0fc824eac66a18063f7098e1c395c09b580d5a30b96f2b856608c084212c2ac2",
+    "feature/2026-07-29-addressable-queue-operations.i18n.yaml": "sha256:0a067b38dd3c02ac41148ed03a7a6fa4c3dee88d5a4b9bad325ff76ebc03c443",
+    "feature/2026-07-29-addressable-queue-operations.md": "sha256:f4d38d6cc49ad23cda2a287ba7ea5ce0e5fdb0edd41f33e68633f439654ca9fa",
+    "feature/2026-07-29-addressable-queue-operations.zh.md": "sha256:9aedd7e241cf46ec7a78ae999a7fb105d73da4baf57c9ecf7ae745ee9b98182b",
     "process/2026-06-11-doc-sync-enforcement.i18n.yaml": "sha256:33b6d5874427bd7a2bd82e7e2f4f482b12448b2464aef15a9c57975edb48554d",
     "process/2026-06-11-doc-sync-enforcement.md": "sha256:aa2fe83d519fc30d48dff19e596e83c8922aacc9e063e14fe2cc35b769b9100e",
     "process/2026-06-11-doc-sync-enforcement.zh.md": "sha256:698017bd35f030fdea3eac51df9e43138c48140f504739d687b7251d13fced2b",
diff --git a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.i18n.yaml b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.i18n.yaml
index a3fc44c0dd..361c27292d 100644
--- a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.md
-2026-07-22-unified-send-and-coalesced-user-messages.md: 4bc4303f636ea7ff268d0b3f2d0a65dfba954883
-2026-07-22-unified-send-and-coalesced-user-messages.zh.md: 02c3bcafa246d52da0ef3b8f0dfd956091eedfb6
+2026-07-22-unified-send-and-coalesced-user-messages.md: d771baf8854d02d2945ecf05db93672ff1de5645
+2026-07-22-unified-send-and-coalesced-user-messages.zh.md: 7fd65cb433071fdaaa65b65e965da0757b02f31f
diff --git a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.md b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.md
index 4bc4303f63..d771baf885 100644
--- a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.md
+++ b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.md
@@ -14,11 +14,11 @@ Separately, `context/message` and `user/message` had converged: the surface proj
 
 **One primitive, three preset aliases.** The `Agent` interface's `send(message, target, wakeup)` covers the (`target` × `wakeup`) matrix. Its complete `UserMessage` owns identity, role, model-facing `content`, and producer `source`; the remaining arguments own only routing policy. `followup` (`next-turn`/wakeup), `steer` (`next-step`/wakeup), and `inject` (`next-step`/no-wakeup) each accept that one message and fix the policy. `wakeup` reserves a driver when the agent is idle; an already active driver receives no second reservation and can claim the input only if it reaches a later pre-step boundary. `next-turn`/no-wakeup (queue without waking) is representable with no alias and no current caller.
 
-**inject is a non-waking next-step delivery.** It always appends the complete message to the next-step inbox. The driver claims it at a later pre-step and records it only when the final decision returns it in the entering batch; idle injection remains pending until another delivery wakes the driver. Its required `UserMessage.source` preserves the caller's explicit provenance.
+**inject is a non-waking next-step delivery.** It always appends the complete message to the next-step inbox and records that insertion in a durable `agent/inbox/spliced` event. The driver claims it at a later pre-step and records it as model-visible `user/message` only when the final decision returns it in the entering batch; idle injection remains pending until another delivery wakes the driver. Its required `UserMessage.source` preserves the caller's explicit provenance.
 
-**context/message is gone.** Injected context is now a `user/message`; context producers supply the appropriate non-user `source` explicitly, and typed source variants carry any domain-specific durable provenance. The surface, derivation, and `SurfaceEventType` drop `context/message`; consumers that need "is this a human prompt?" read `source.kind === 'user'` instead of the event type.
+**context/message is gone.** Injected context uses one `UserMessage` value in the inbox and becomes a `user/message` event if admitted; context producers supply the appropriate non-user `source` explicitly, and typed source variants carry any domain-specific durable provenance. The surface, derivation, and `SurfaceEventType` drop `context/message`; consumers that need "is this a human prompt?" read `source.kind === 'user'` instead of the event type.
 
-**Goal replay disambiguates by round, not type.** A goal state change is a round-zero goal-sourced `user/message` whose source carries the complete change; a positive round is an admitted continuation prompt. `decodeGoalEvent` takes a `user/message` and fails loud when goal-state content and its typed source disagree.
+**Goal replay disambiguates by round, not type.** A goal state change commits as a round-zero goal-sourced message in a durable inbox insertion; a positive round advances only from an admitted continuation `user/message`. If the state-change message is later admitted, replay checks that its id, content, and typed source match the insertion without applying the change again.
 
 **`send` does not return identity.** Callers already own the complete message and its opaque `MessageId`; creation and freezing are owned by the [identified immutable message decision](2026-07-28-identified-immutable-message-values.md), not by routing.
 
@@ -41,7 +41,7 @@ Separately, `context/message` and `user/message` had converged: the surface proj
 
 ## Consequences
 
-The delivery surface is now one primitive plus three self-documenting presets, and the (`target` × `wakeup`) matrix makes previously-unreachable combinations explicit. One durable message type serves prompts, injected context, and goal rounds, so the surface projection and every "human prompt?" check simplify to a `source` test. The `Agent` contract remains an interface, so alternate implementations and object-literal test fakes implement the same minimal structural surface. The goal fold's channel split moved from event type to `source.round`, and every consumer that filtered `context/message` now filters `user/message` by source. An idle injection remains pending without opening a turn or running the model, then becomes `user/message` when a later waking delivery's pre-step returns it in the entering batch.
+The delivery surface is now one primitive plus three self-documenting presets, and the (`target` × `wakeup`) matrix makes previously-unreachable combinations explicit. One identified message value serves prompts, injected context, and goal rounds, so every "human prompt?" check simplifies to a `source` test. The `Agent` contract remains an interface, so alternate implementations and object-literal test fakes implement the same minimal structural surface. Goal mutations fold from durable inbox insertions, while positive rounds fold from admitted `user/message` events. An idle injection remains pending without opening a turn or running the model, then becomes `user/message` when a later waking delivery's pre-step returns it in the entering batch.
 
 `wakeup` is the "should the model run" signal, so the inbox distinguishes waking queued work from anything available to claim: a lone `next-turn`/no-wakeup item stays parked at idle and rides along the next waking send, and `whenIdle`/`cancel` settle quiescence off the waking signal. Every insertion and exit publishes its matching live notification, while domain-specific durable facts travel in typed message sources rather than a parallel metadata channel. The direct pending-message representation keeps durable splices and live events correlated without maintaining a second steering wrapper or allowing its data to diverge. The later [claimed pre-step inbox lifecycle](2026-07-31-claimed-pre-step-inbox-lifecycle.md) decision keeps live queue mutations addressed by `MessageId` and separates single-message lifecycle notifications from the durable whole-queue splice projection.
 
diff --git a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.zh.md b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.zh.md
index 02c3bcafa2..7fd65cb433 100644
--- a/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-22-unified-send-and-coalesced-user-messages.zh.md
@@ -14,11 +14,11 @@ agent 的对外驱动接口逐渐长出三个近乎平行的动词——`send`
 
 **一个原语，三个预设别名。** `Agent` 接口的 `send(message, target, wakeup)` 覆盖 (`target` × `wakeup`) 矩阵。完整的 `UserMessage` 持有标识、角色、模型可见 `content` 与生产方 `source`；其余参数只持有路由策略。`followup`（`next-turn`/wakeup）、`steer`（`next-step`/wakeup）和 `inject`（`next-step`/no-wakeup）都接收这一条消息并固定策略。`wakeup` 会在 agent 空闲时保留一个驱动器；已经活跃的驱动器不会获得第二次保留，只有在抵达后续 pre-step 边界时才能领取该输入。`next-turn`/no-wakeup（入队但不唤醒）可以表达，只是没有别名，也没有当前调用方。
 
-**inject 是不会唤醒的 next-step 投递。** 它始终把完整消息追加到 next-step inbox。驱动器会在后续 pre-step 领取它，并且只有最终决策把它放入进入步骤的批次时才会记录；空闲注入会保持待处理，直到其他投递唤醒驱动器。必填的 `UserMessage.source` 会保留调用方显式提供的来源信息。
+**inject 是不会唤醒的 next-step 投递。** 它始终把完整消息追加到 next-step inbox，并在持久 `agent/inbox/spliced` 事件中记录该插入。驱动器会在后续 pre-step 领取它，并且只有最终决策把它放入进入步骤的批次时，才会将其记录为模型可见的 `user/message`；空闲注入会保持待处理，直到其他投递唤醒驱动器。必填的 `UserMessage.source` 会保留调用方显式提供的来源信息。
 
-**context/message 已移除。** 注入的上下文现在是一条 `user/message`；上下文生产方显式提供合适的非 `user` 类别 `source`，类型化 source 变体携带所有特定于领域的持久来源信息。对外接口、派生逻辑和 `SurfaceEventType` 都不再包含 `context/message`；需要判断“这是不是一条人类提示词？”的消费方改为读取 `source.kind === 'user'`，而不是事件类型。
+**context/message 已移除。** 注入的上下文在 inbox 中使用同一个 `UserMessage` 值，并在获准时成为 `user/message` 事件；上下文生产方显式提供合适的非 `user` 类别 `source`，类型化 source 变体携带所有特定于领域的持久来源信息。对外接口、派生逻辑和 `SurfaceEventType` 都不再包含 `context/message`；需要判断“这是不是一条人类提示词？”的消费方改为读取 `source.kind === 'user'`，而不是事件类型。
 
-**goal 回放靠轮次而非类型来区分。** 一次 goal 状态变更是一条第 0 轮、来源为 goal 的 `user/message`，其 source 携带完整变更；正数轮次则是一条已准入的继续执行提示词。`decodeGoalEvent` 接收一条 `user/message`，并在 goal 状态内容与其类型化 source 不一致时立即报错。
+**goal 回放靠 Round 而非类型来区分。** 一次 goal 状态变更会作为 Round 为 0、来源为 goal 的消息，在持久 inbox 插入项中提交；正数 Round 只从已准入的继续执行 `user/message` 推进。如果状态变更消息随后获准，回放会检查其 id、内容和类型化 source 是否与插入项一致，而不会再次应用变更。
 
 **`send` 不返回标识。** 调用方已经持有完整消息及其不透明的 `MessageId`；消息的创建与冻结由[带标识的不可变消息值决策](2026-07-28-identified-immutable-message-values.md)负责，而不是由路由负责。
 
@@ -41,7 +41,7 @@ agent 的对外驱动接口逐渐长出三个近乎平行的动词——`send`
 
 ## 后果
 
-投递接口现在是一个原语加三个自解释的预设，(`target` × `wakeup`) 矩阵把此前无法表达的组合显式化。一种持久消息类型同时服务提示词、注入的上下文和 goal 轮次，因此对外接口的投影和每一处“是否人类提示词？”检查都简化为一次 `source` 判断。`Agent` 契约仍是接口，因此其他实现和对象字面量形式的测试替身只需实现同一个最小结构接口。goal 折叠的通道区分从事件类型改到了 `source.round`；此前过滤 `context/message` 的每个消费方现在改为按来源过滤 `user/message`。空闲注入会保持待处理，不打开轮次也不运行模型；后续会唤醒的投递在 pre-step 将其放入进入步骤的批次时，它才成为 `user/message`。
+投递接口现在是一个原语加三个自解释的预设，(`target` × `wakeup`) 矩阵把此前无法表达的组合显式化。同一个带标识消息值同时服务提示词、注入的上下文和 Goal Round，因此每一处“是否人类提示词？”检查都简化为一次 `source` 判断。`Agent` 契约仍是接口，因此其他实现和对象字面量形式的测试替身只需实现同一个最小结构接口。goal 变更从持久 inbox 插入项折叠，而正数 Round 从已准入的 `user/message` 事件折叠。空闲注入会保持待处理，不打开轮次也不运行模型；后续会唤醒的投递在 pre-step 将其放入进入步骤的批次时，它才成为 `user/message`。
 
 `wakeup` 是“模型是否应当运行”的信号，因此 inbox 会区分能唤醒的排队工作与任何可领取的项：一个孤立的 `next-turn`/no-wakeup 队列项会停泊在空闲状态，并随下一次唤醒 send 一同带出，而 `whenIdle`/`cancel` 依据唤醒信号来结算完全停稳。每次插入与退出都会发布对应的实时通知，特定于领域的持久事实则通过类型化消息 source 传递，而非通过平行的元数据通道。直接使用待处理消息的表示方式，使持久 splice 与实时事件保持可关联，既无需维护第二个 steering 包装层，也避免数据发生分歧。后续的[已领取 pre-step inbox 生命周期](2026-07-31-claimed-pre-step-inbox-lifecycle.md)决策保留通过 `MessageId` 寻址的实时队列变更，并把单消息生命周期通知与持久的整体队列 splice 投影分离。
 
diff --git a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.i18n.yaml b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.i18n.yaml
index 6469b803d4..ff0c155818 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.i18n.yaml
+++ b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.md
-2026-07-24-separate-context-injection-from-turn-execution.md: ef85a33c7479b59a079c42cd42711a650ebc904e
-2026-07-24-separate-context-injection-from-turn-execution.zh.md: ebcf5af6defdc56085bfd647f5134414cd22519b
+2026-07-24-separate-context-injection-from-turn-execution.md: a1ae505a54f55d201559d62765abe423694aef6e
+2026-07-24-separate-context-injection-from-turn-execution.zh.md: 8a24442b9922a125e86b5478cc3d0d810d027505
diff --git a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.md b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.md
index ef85a33c74..a1ae505a54 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.md
@@ -22,11 +22,11 @@ A caller that owns context delivers an identified, frozen `UserMessage` through
 
 An entering pre-step returns the complete `PreStepDecision.messages` batch for the request being finalized. Tool extension points still return `additionalContexts`, which enter the next-step inbox only after the corresponding tool results. These values are extension-point outputs, not attachments captured from a caller's inbox item.
 
-Every additional context is an independent `user/message` whose `source` records provenance. There is no `context/message`, prompt-prefix placement, stable request delimiter, or prompt envelope. Transcript and UI consumers distinguish direct user messages from injected context by `source`.
+Every additional context is an independent `UserMessage` whose `source` records provenance. Inbox insertion is durable immediately; admission later records the same value as `user/message`. There is no `context/message`, prompt-prefix placement, stable request delimiter, or prompt envelope. Transcript and UI consumers distinguish direct user messages from injected context by `source`.
 
 ## Injection lifecycle
 
-`inject()` always inserts context into the non-waking `next-step` inbox. A collecting or running driver claims it at the nearest later pre-step boundary. An idle driver leaves it pending until `followup()` or `steer()` supplies waking work; cancellation or disposal may discard it first.
+`inject()` always inserts context into the non-waking `next-step` inbox and commits that queue mutation as `agent/inbox/spliced`. A collecting or running driver claims it at the nearest later pre-step boundary. An idle driver leaves it pending until `followup()` or `steer()` supplies waking work; cancellation or disposal may discard it first without erasing the durable queue history.
 
 The loop claims the current next-step batch before running `agent/pre-step`, so an injection that arrives after that claim may miss the request already being finalized. The next boundary claims it instead. An enter decision appends its returned messages inside the owning turn before the request consumes them. Context produced during an assistant tool-call batch therefore appears after that batch's complete ordered results.
 
@@ -50,7 +50,7 @@ This decision preserves the caller-owned framing decision from [unwrapped inject
 
 **Keep a distinct `context/message` session event.** User-role model input would again have two event types with identical projection. `user/message.source` already carries the distinction needed by policy, transcript, and replay consumers.
 
-**Keep one-shot turns for idle injection.** This gives idle context an immediate durability boundary, but it makes turn counts and turn observers report work that never ran the model. Non-waking context instead remains pending until real waking work supplies a request.
+**Keep one-shot turns for idle injection.** Durable inbox insertion already records idle context without opening a turn. A synthetic turn would make turn counts and observers report work that never ran the model; non-waking context remains pending until real waking work supplies a request.
 
 **Keep `prompt-prefix` as an optional placement.** Prefix baking can make the context and request appear in one provider message, but it introduces a second representation of the direct prompt and spreads placement handling across admission, steering, logging, replay, and UI code. Producers that require textual framing may include it in their own context content.
 
@@ -61,14 +61,14 @@ This decision preserves the caller-owned framing decision from [unwrapped inject
 - Delivery inputs and steering inbox records contain no attached contexts; `agent/inbox/inserted` reports only the inserted message, while the durable splice retains its target list.
 - `UserMessage` is the shared identified, frozen shape across prompt interception, tool execution, hook bridges, guards, and context producers.
 - Prompt-prefix placement, prompt envelopes, and `context/message` are absent from public types, durable events, projection, and UI replay.
-- Idle `inject()` queues one non-waking next-step item and appends nothing until a later waking delivery starts pre-step processing.
+- Idle `inject()` immediately appends one durable inbox insertion but no model-visible `user/message`; a later waking delivery may start pre-step processing.
 - Collecting and active-turn injection is claimed at the nearest later pre-step boundary, after complete tool-result batches and before the request that consumes it.
 - Rejected or failed pre-step drops its claimed batch; input inserted after the claim remains pending.
 - Unit, persistence/resume, invariant, and TUI coverage pin event order, claim ownership, and durable replay.
 
 ## Consequences
 
-- Idle injection is not model-visible until a later pre-step enters it and may be lost to cancellation or disposal.
+- Idle injection is not model-visible until a later pre-step enters it and may be discarded by cancellation or disposal, while its durable inbox lifecycle remains recorded.
 - Consecutive user-role messages replace one baked prompt message; provider adapters preserve that ordering.
 - Exact-current-request context must be returned from `agent/pre-step`; ordinary injection provides only nearest-later-boundary delivery.
 - The public delivery contract and inbox records remain small: no context attachment, context-placement metadata, prompt envelope, or duplicate durable event type.
diff --git a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.zh.md b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.zh.md
index ebcf5af6de..8a24442b99 100644
--- a/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.zh.md
+++ b/.agents/notes/implemented/architecture/2026-07-24-separate-context-injection-from-turn-execution.zh.md
@@ -22,11 +22,11 @@ agent API 曾用三种相互重叠的方式表示面向模型的补充输入：
 
 返回 enter 的 pre-step 会为正在最终确定的请求返回完整的 `PreStepDecision.messages` 批次。工具扩展点仍可返回 `additionalContexts`，这些上下文只会在对应工具结果之后进入 next-step inbox。这些值是扩展点的输出，而不是从调用方 inbox 条目捕获的附件。
 
-每项额外上下文都是独立的 `user/message`，并由 `source` 记录来源。不再有 `context/message`、prompt-prefix 放置方式、稳定请求分隔符或提示词封套。transcript 与 UI 消费方通过 `source` 区分直接用户消息和注入上下文。
+每项额外上下文都是独立的 `UserMessage`，并由 `source` 记录来源。inbox 插入会立即持久化；后续准入会将同一个值记录为 `user/message`。不再有 `context/message`、prompt-prefix 放置方式、稳定请求分隔符或提示词封套。transcript 与 UI 消费方通过 `source` 区分直接用户消息和注入上下文。
 
 ## 注入生命周期
 
-`inject()` 始终把上下文插入不会唤醒的 `next-step` inbox。collecting 或 running 驱动器会在最近的后续 pre-step 边界领取它。idle 驱动器会让它保持待处理，直至 `followup()` 或 `steer()` 提供可唤醒工作；在此之前，取消或 dispose（资源释放）可能将其丢弃。
+`inject()` 始终把上下文插入不会唤醒的 `next-step` inbox，并以 `agent/inbox/spliced` 提交该队列变更。collecting 或 running 驱动器会在最近的后续 pre-step 边界领取它。idle 驱动器会让它保持待处理，直至 `followup()` 或 `steer()` 提供可唤醒工作；在此之前，取消或 dispose（资源释放）可能将其丢弃，但不会抹除持久队列历史。
 
 循环会先领取当前 next-step 批次，再运行 `agent/pre-step`，因此领取后到达的注入可能赶不上正在最终确定的请求，而由下一次边界领取。enter decision 返回的消息会在所属轮次内、消费它们的请求之前追加。在助手工具调用批次期间产生的上下文因此只会出现在该批次全部有序结果之后。
 
@@ -50,7 +50,7 @@ enter 分支的 `PreStepDecision.messages` 是拟议步骤的完整批次。wate
 
 **保留独立的 `context/message` 会话事件。** 面向模型的 user-role 输入会再次拥有两个投影完全相同的事件类型。`user/message.source` 已能为策略、transcript 和回放消费方提供所需区分。
 
-**为空闲注入保留一次性轮次。** 这种方式会为空闲上下文提供即时持久边界，却让轮次计数与轮次观察方报告从未运行模型的工作。不会唤醒的上下文改为保持待处理，直至真实的可唤醒工作提供请求。
+**为空闲注入保留一次性轮次。** 持久 inbox 插入已经能在不打开轮次的情况下记录空闲上下文。合成轮次会让轮次计数与观察方报告从未运行模型的工作；不会唤醒的上下文会保持待处理，直至真实的可唤醒工作提供请求。
 
 **保留 `prompt-prefix` 可选放置方式。** 前缀烘焙可以让上下文和请求位于同一条提供方消息中，但它会引入直接提示词的第二种表示，并把放置处理扩散到准入、steering、日志、回放和 UI 代码。需要文本框架的生产方可以直接把它写入自身上下文内容。
 
@@ -61,14 +61,14 @@ enter 分支的 `PreStepDecision.messages` 是拟议步骤的完整批次。wate
 - 投递输入与 steering inbox 记录不包含附加上下文；`agent/inbox/inserted` 只报告插入消息，目标列表由持久 splice 保留。
 - `UserMessage` 是提示词拦截、工具执行、hook bridge、guard 和上下文生产方共享的带标识且冻结的形状。
 - 公共类型、持久事件、投影和 UI 回放中均不存在 prompt-prefix 放置方式、提示词封套与 `context/message`。
-- idle 状态下的 `inject()` 会将一条不会唤醒的 next-step 消息排队；后续可唤醒投递开始 pre-step 处理前，日志不会追加任何内容。
+- idle 状态下的 `inject()` 会立即追加一条持久 inbox 插入记录，但不会追加模型可见的 `user/message`；后续可唤醒投递可能开始 pre-step 处理。
 - collecting 和活跃轮次中的注入会在最近的后续 pre-step 边界领取，并位于完整工具结果批次之后、消费它的请求之前。
 - pre-step reject 或失败会丢弃其已领取批次；领取后插入的 inbox 工作继续保持待处理。
 - 单元测试、持久化与 resume 测试、不变量测试和 TUI 覆盖会固定事件顺序、领取归属和持久回放。
 
 ## 后果
 
-- idle 注入要到后续 pre-step 让它进入步骤后才会对模型可见，并可能因取消或 dispose 而丢失。
+- idle 注入要到后续 pre-step 让它进入步骤后才会对模型可见，并可能被取消或 dispose 丢弃，而其持久 inbox 生命周期仍会保留记录。
 - 两条连续的 user-role 消息会取代一条烘焙后的提示词消息；提供方适配器会保留这一顺序。
 - 必须影响当前请求的上下文要从 `agent/pre-step` 返回；普通注入只保证由最近的后续边界交付。
 - 公共投递契约和收件箱记录保持精简：没有上下文附件、上下文放置元数据、提示词封套或重复的持久事件类型。
diff --git a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.i18n.yaml b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.i18n.yaml
index ad0592ae57..49a17c9681 100644
--- a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.i18n.yaml
@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
-#   pnpm run verify-translation-pairing --write
-2026-07-16-harness-level-loop.md: 15b5ce7e20b7afc429f6ff7b8a4d2d69150c22a0
-2026-07-16-harness-level-loop.zh.md: a3fabe40d36c45c715f613ce8def35faa427d3bd
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-16-harness-level-loop.md
+2026-07-16-harness-level-loop.md: cf449affe77bf18feabbd163cd778f1496870995
+2026-07-16-harness-level-loop.zh.md: 6d1da72e885d65b54dceb235f18dbd3090e844a2
diff --git a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.md b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.md
index 15b5ce7e20..cf449affe7 100644
--- a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.md
+++ b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.md
@@ -46,7 +46,7 @@ The detailed contracts live in the [goal-domain](2026-07-19-persisted-same-sessi
 
 ### Durable goal state and live authority
 
-One session has at most one current goal. Every non-clear mutation appends a full, versioned, model-visible goal snapshot through `Agent.inject()`; clear appends a revisioned tombstone. The session log is the only durable source of truth, so normal persistence, resume, compaction semantics, and `SessionStore.fork()` carry the goal without a second database or an artificial cancellation record.
+One session has at most one current goal. Every mutation commits through the durable `agent/inbox/spliced` insertion produced by `Agent.inject()`, carrying a full versioned snapshot or revisioned clear tombstone. Its queued context becomes model-visible only if later admitted, and discarding it does not roll back the goal. The session log is the only durable source of truth, so normal persistence, resume, and `SessionStore.fork()` carry the goal without a second database or an artificial cancellation record.
 
 Durable phases are only `active`, `paused`, `blocked`, and `complete`. A blocked goal carries a required `GoalBlockReason` with a stable lower-kebab-case `code` and a non-empty human-readable `message`; usage limits, round exhaustion, model failures, and policy rejection are reason codes rather than extra lifecycle phases. Separate activation is `armed` or `disarmed` and is never persisted. Creation and explicit resume arm a goal; stop transitions, session start, fork replay, driver replacement, and driver teardown leave it disarmed.
 
@@ -58,9 +58,9 @@ Forked sessions inherit the durable goal prefix because that is the natural repl
 
 ### Same-session continuation
 
-The goal-round driver owns at most one pending reservation per exact live agent. It admits a reservation only when the goal is active and armed, the agent is idle, no competing human work exists, pending mutations are durable, the exact goal id/revision/round still matches, and downstream prompt policy accepts it. The prompt-submit fence checks those facts both before and after asynchronous listeners, preventing an edit, pause, human message, or unload race from admitting obsolete work.
+The goal-round driver owns at most one pending reservation per exact live agent. It admits a reservation only when the goal is active and armed, the agent is idle, no competing human work exists, pending mutation insertions have passed their durability checkpoint, the exact goal id/revision/round still matches, and downstream pre-step policy accepts it. Its `agent/pre-step` fence checks those facts both before and after downstream listeners, preventing an edit, pause, human message, or unload race from admitting obsolete work.
 
-Only the durable goal-sourced `user/message` charges a round. Stale reservations become rejected zero-step turns without consuming the cap. A concurrent goal revision wins over settlement from an older round.
+Only an admitted positive-round goal-sourced `user/message` charges a round. A stale reservation is rejected before a turn opens without consuming the cap. A concurrent goal revision wins over settlement from an older round.
 
 Normal turn completion schedules another round only while the goal remains active, armed, and below its cap. Cancellation pauses. Rate limiting or quota exhaustion blocks with code `usage-limited`; cap exhaustion blocks with `round-limit`; queue failure uses `queue-failed`; turn errors, max-token stops, policy rejection, and unknown terminal results use their corresponding blocker codes. An independently composed request-recovery plugin may retry transient provider failures within that same turn; the goal driver never invents another round after an abnormal terminal outcome. A human can later authorize resume through ordinary language or `/goal resume`.
 
diff --git a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.zh.md b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.zh.md
index a3fabe40d3..6d1da72e88 100644
--- a/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.zh.md
+++ b/.agents/notes/implemented/feature/2026-07-16-harness-level-loop.zh.md
@@ -46,7 +46,7 @@ Status: implemented
 
 ### 持久目标状态与实时权限
 
-一个会话至多有一个当前目标。每次非清除变更都通过 `Agent.inject()` 追加一份完整、带版本且模型可见的目标快照；清除会追加带修订号的墓碑。会话日志是唯一持久事实来源，因此普通持久化、恢复、压缩语义与 `SessionStore.fork()` 会携带目标，无需第二个数据库或人为取消记录。
+一个会话至多有一个当前 goal。每次变更都通过 `Agent.inject()` 产生的持久 `agent/inbox/spliced` 插入项提交，并携带带版本的完整快照或带修订号的 clear 墓碑。其排队上下文只有在后续获准时才对模型可见，丢弃它不会回滚 goal。会话日志是唯一持久真源，因此普通持久化、恢复与 `SessionStore.fork()` 会携带 goal，无需第二个数据库或人为取消记录。
 
 持久阶段只有 `active`、`paused`、`blocked` 与 `complete`。阻塞目标必须携带 `GoalBlockReason`，其中包含稳定的小写 kebab-case `code` 与非空的人类可读 `message`；用量限制、Round 耗尽、模型失败与策略拒绝都是原因代码，而不是额外生命周期阶段。独立激活态是 `armed` 或 `disarmed`，且永不持久化。创建与显式恢复会激活目标；停止转换、会话启动、fork 重放、驱动器替换和驱动器拆卸都会让目标保持未激活。
 
@@ -58,9 +58,9 @@ fork 会话会继承持久目标前缀，因为这是自然的重放结果。for
 
 ### 同会话续行
 
-目标回合驱动器为每个准确实时 agent 至多拥有一个待定预留。只有目标处于活跃且已激活状态、agent 空闲、不存在竞争性人类工作、待定变更已经持久、准确目标 id/修订号/Round 仍匹配，并且下游提示词策略接受时，它才会接纳预留。prompt-submit 围栏在异步监听器前后都检查这些事实，防止编辑、暂停、人类消息或卸载竞争接纳过时工作。
+Goal Round 驱动器为每个准确实时 agent 至多拥有一个待定预留。只有 goal 处于活跃且已激活状态、agent 空闲、不存在竞争性人类工作、待定变更插入项已经通过持久性检查点、准确 goal id／revision／Round 仍匹配，并且下游 pre-step 策略接受时，它才会接纳预留。其 `agent/pre-step` 围栏会在下游监听器前后检查这些事实，防止编辑、暂停、人类消息或卸载竞争接纳陈旧工作。
 
-只有持久的目标来源 `user/message` 会计入一个 Round。过时预留会成为未消耗上限的零 Step 拒绝 Turn。并发目标修订会胜过旧 Round 的结算。
+只有已准入、Round 为正数且来源为 goal 的 `user/message` 会计入一个 Round。陈旧预留会在轮次打开前被拒绝，不会消耗上限。并发 goal revision 会胜过旧 Round 的结算。
 
 普通 Turn 完成后，只有目标仍活跃、已激活且低于上限时才会安排另一个 Round。取消会暂停。速率限制或配额耗尽以代码 `usage-limited` 阻塞；上限耗尽使用 `round-limit`；队列失败使用 `queue-failed`；Turn 错误、max-token 停止、策略拒绝与未知终止结果使用各自对应的阻塞代码。独立组合的请求恢复插件可以在同一个 Turn 内重试暂时性 provider 失败；目标驱动器绝不会在异常终止结果后凭空发起另一个 Round。人类随后可以通过普通语言或 `/goal resume` 授权恢复。
 
diff --git a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.i18n.yaml b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.i18n.yaml
index 44e1412cc4..7a4d016339 100644
--- a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.i18n.yaml
@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
-#   pnpm run verify-translation-pairing --write
-2026-07-19-human-goal-command.md: ce5c37fd28f9432d8c9a8797cac32c632617e317
-2026-07-19-human-goal-command.zh.md: d5ce36bd75a6f1070ee1eaeb1ac6ee97778c246b
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-19-human-goal-command.md
+2026-07-19-human-goal-command.md: 1847985b49c9728df7068d866ee698a5ee8d27e6
+2026-07-19-human-goal-command.zh.md: 9a515a7b9d40b2849a2554118fb4f493c4fa5633
diff --git a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.md b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.md
index ce5c37fd28..1847985b49 100644
--- a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.md
+++ b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.md
@@ -34,7 +34,7 @@ Status output omits branded ids and compare-and-set revisions because those are
 
 Expected `GoalError` failures become one stable, branded-id-free `CommandResult.error`, so domain diagnostics do not leak compare-and-set internals into the human surface and invalid operations never enter model history. The current status supplies the actionable state-specific recovery. Other exceptions remain adapter-visible command failures; treating programmer faults as ordinary domain errors would hide defects. The command handler performs only synchronous domain mutations, so request cancellation is decided by the command registry before the mutation begins and there is no escaped asynchronous side effect to unwind.
 
-Generic slash input, status text, and errors are not persisted. Successful goal mutations use the existing `Agent.inject()` path, producing the raw model-visible goal snapshot or clear tombstone that persistence already owns. The command therefore changes no session format and introduces no second audit record that could disagree with the domain event.
+Generic slash input, status text, and errors are not persisted. Successful goal mutations use the existing `Agent.inject()` path: the durable inbox insertion commits the raw goal snapshot or clear tombstone, while later admission independently makes that queued context model-visible. The command therefore changes no session format and introduces no second audit record that could disagree with the domain event.
 
 ### App composition
 
diff --git a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.zh.md b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.zh.md
index d5ce36bd75..9a515a7b9d 100644
--- a/.agents/notes/implemented/feature/2026-07-19-human-goal-command.zh.md
+++ b/.agents/notes/implemented/feature/2026-07-19-human-goal-command.zh.md
@@ -34,7 +34,7 @@ Status: implemented
 
 预期的 `GoalError` 失败会变为一个稳定且不含品牌化 id 的 `CommandResult.error`，使领域诊断不会向人类表面泄露比较并交换内部细节，非法操作也绝不会进入模型历史。当前状态负责提供针对具体状态且可执行的恢复路径。其他异常仍是适配器可见的命令失败；若把程序缺陷当成普通领域错误，就会隐藏问题。命令处理器只执行同步领域变更，因此请求取消会在变更开始前由命令注册表决定，不存在需要回滚的外逸异步副作用。
 
-通用斜杠输入、状态文本与错误不会持久化。成功的目标变更使用现有 `Agent.inject()` 路径，产出持久化本就拥有的原始模型可见目标快照或清除墓碑。因此该命令不会改变会话格式，也不会引入可能与领域事件不一致的第二份审计记录。
+通用斜杠输入、状态文本与错误不会持久化。成功的 goal 变更使用现有 `Agent.inject()` 路径：持久 inbox 插入项提交原始 goal 快照或 clear 墓碑，后续准入则单独使已排队的上下文对模型可见。因此该命令不会改变会话格式，也不会引入可能与领域事件不一致的第二份审计记录。
 
 ### 应用组合
 
diff --git a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.i18n.yaml b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.i18n.yaml
index 2859ffb99b..580930ef46 100644
--- a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.i18n.yaml
@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
-#   pnpm run verify-translation-pairing --write
-2026-07-19-persisted-same-session-goal-domain.md: 00600b2c49646ebd3b692154ef945eb79a33b032
-2026-07-19-persisted-same-session-goal-domain.zh.md: 6a554438d0d70a5b4ccbf7b6ee77853af9c9ce69
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.md
+2026-07-19-persisted-same-session-goal-domain.md: 7b09676e023b909da8c5a54ae0efa901b1d201e8
+2026-07-19-persisted-same-session-goal-domain.zh.md: 1bb9aab9d810719d0d0cee3a15d1cc2bc8354db7
diff --git a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.md b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.md
index 00600b2c49..7b09676e02 100644
--- a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.md
+++ b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.md
@@ -18,11 +18,11 @@ The durable phases are `active`, `paused`, `blocked`, and `complete`. A blocked
 
 ### Durable record and replay
 
-Every non-clear mutation uses `Agent.inject()` to append a model-visible `context/message` containing a versioned full snapshot; the session projects that content verbatim. Clear appends a revisioned tombstone. The context source is `{ kind: 'goal', goalId, revision, round: 0 }`; metadata and rendered `<goal_state>...</goal_state>` content must agree exactly. This descriptive delimiter follows the repository's existing `<workspace_context>` convention and [Anthropic's published guidance to structure mixed prompt content with consistent descriptive XML tags](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags). That is public model-experience prior art, not evidence about any provider's proprietary training corpus. The session log is the only durable source of truth, so persistence and fork inherit goal records without another database or header field.
+Every mutation uses `Agent.inject()` to insert one round-zero goal-sourced message containing a versioned full snapshot or, for clear, a revisioned tombstone. The mutation commits in the durable `agent/inbox/spliced` insertion even if its context remains queued and never reaches the model; later removal or discard does not roll it back. If the same message is admitted as `user/message`, replay verifies its id, source, metadata, and rendered `<goal_state>...</goal_state>` content against the insertion without applying the mutation again. This descriptive delimiter follows the repository's existing `<workspace_context>` convention and [Anthropic's published guidance to structure mixed prompt content with consistent descriptive XML tags](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags). That is public model-experience prior art, not evidence about any provider's proprietary training corpus. The session log is the only durable source of truth, so persistence and fork inherit goal records without another database or header field.
 
-The replay fold validates JSON shape, source attribution, rendered content, fresh ids, revision continuity, lifecycle transitions, counters, and monotonic per-goal timestamps. Goal rounds are positive sequential `user/message` source numbers for the current active revision and cannot exceed `maxGoalRounds`; ordinary session turns do not affect the counter. A malformed current-format record fails replay rather than being ignored or repaired.
+The replay fold derives mutations only from inbox insertions and validates JSON shape, source attribution, rendered content, message-id consistency on later admission, fresh ids, revision continuity, lifecycle transitions, counters, and monotonic per-goal timestamps. Goal rounds advance only from positive sequential admitted `user/message` source numbers for the current active revision and cannot exceed `maxGoalRounds`; ordinary session turns do not affect the counter. A malformed current-format record fails replay rather than being ignored or repaired.
 
-When `Agent.inject()` defers a mutation inside an active tool batch, the service overlays the accepted payload in process memory so a later mutation can use its new revision. Reconciliation removes only an exact matching payload when the FIFO append becomes visible; reentrant append observers project each mutation exactly once. Incremental replay advances its cursor after each valid event and remains positioned at the first corrupt event, so later reads report the same durable fault. The durable log remains authoritative after restart.
+The service reconciles an injected mutation with its synchronous inbox insertion by message id, so reentrant insertion observers apply each accepted change exactly once and a later admission only checks consistency. Incremental replay advances its cursor after each valid event and remains positioned at the first corrupt event, so later reads report the same durable fault. The durable log remains authoritative after restart.
 
 ### Lifecycle and live activation
 
@@ -36,12 +36,12 @@ The service accepts only the exact live `Agent` object registered under its id.
 
 ## Testing
 
-Unit coverage pins creation defaults, exact-live-agent checks, compare-and-set rejection, every lifecycle transition, blocker reason validation and retention, cap enforcement on resume, clear/replacement, seeded replay and `SessionStore.fork()` inheritance, session-start and lifecycle-owner disarming, active-goal rearming, FIFO deferred mutation reconciliation, reentrant append observation, rejected-injection rollback, stable corrupt-event replay, service/listener disposal, listener containment, backward-clock clamping, strict record decoding, lifecycle continuity, source/content agreement, and sequential round attribution. A keyless Loader/stdio process test mounts the service and a lifecycle consumer through test-only `cordis.yml`, then reads the persisted JSONL externally to verify the model-visible snapshot and absence of an unrequested goal round. The package source is held to the repository's per-file 100% coverage gate.
+Unit coverage pins creation defaults, exact-live-agent checks, compare-and-set rejection, every lifecycle transition, blocker reason validation and retention, cap enforcement on resume, clear/replacement, seeded replay and `SessionStore.fork()` inheritance, session-start and lifecycle-owner disarming, active-goal rearming, durable insertion folding, reentrant insertion observation, admission consistency, discarded-context persistence, rejected-injection rollback, stable corrupt-event replay, service/listener disposal, listener containment, backward-clock clamping, strict record decoding, lifecycle continuity, and sequential round attribution. A keyless Loader/stdio process test mounts the service and a lifecycle consumer through test-only `cordis.yml`, then reads the persisted JSONL externally to verify the goal record and absence of an unrequested goal round. The package source is held to the repository's per-file 100% coverage gate.
 
 ## Alternatives considered
 
 - **Store goals in a separate database or session header** — rejected because the session log already supplies ordering, persistence, fork prefixes, and reconstructability; a second store introduces atomicity and lineage questions.
-- **Use hidden log-only events** — rejected because durable state that changes future model behavior must be model-visible and reconstructable under the repository's logging invariant.
+- **Use goal-only log events without queued context** — rejected because durable state that changes future model behavior must have a reconstructable path into model input. The inbox insertion supplies durable commit while retaining that model-facing path.
 - **Persist activation and restart automatically** — rejected because opening or resuming a session must wait for human input; durable phase records status, not fresh authority to spend resources.
 - **Count all session turns as goal rounds** — rejected because one session can contain human clarification, inspection, and unrelated work; only goal-attributed continuation turns consume this budget.
 - **Add goal state or a generic loop abstraction to `dsh-agent-loop`** — rejected because state and continuation policy can compose through existing plugins, `Agent` verbs, and events without privileging the shipped loop implementation.
@@ -50,7 +50,7 @@ Unit coverage pins creation defaults, exact-live-agent checks, compare-and-set r
 
 - Goal history survives persistence, resume, compaction of unrelated nodes, and session fork as ordinary session data.
 - Resume and fork expose the same durable phase while remaining operationally inert until an explicit resume mutation arms activation.
-- Full snapshots simplify inspection and strict replay but repeat the objective and state fields in model history until compaction shadows them.
+- Full snapshots simplify inspection and strict replay; when admitted, they repeat the objective and state fields in model history until compaction shadows them.
 - Revision and lifecycle validation reject tampered, partially written, or producer-inconsistent goal records early.
 - Round caps bound continuation count only; policy consumers map round, token, currency, time, and provider limits to blocked reasons when they stop work.
 
diff --git a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.zh.md b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.zh.md
index 6a554438d0..1bb9aab9d8 100644
--- a/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.zh.md
+++ b/.agents/notes/implemented/feature/2026-07-19-persisted-same-session-goal-domain.zh.md
@@ -18,11 +18,11 @@ Status: implemented
 
 ### 持久记录与回放
 
-每次非清除变更都通过 `Agent.inject()` 追加一条模型可见的 `context/message`，其中包含带版本的完整快照；会话会将其内容原样投射给模型。清除操作追加带修订号的墓碑。上下文来源为 `{ kind: 'goal', goalId, revision, round: 0 }`；元数据必须与渲染后的 `<goal_state>...</goal_state>` 内容完全一致。这个描述性分隔符沿用了仓库已有的 `<workspace_context>` 约定，也符合 [Anthropic 关于用一致且描述明确的 XML 标签组织混合提示词内容的公开指南](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags)。这是公开的模型体验先例，并非对任何提供方专有训练语料的推断。会话日志是唯一的持久事实来源，因此持久化和 fork 会继承目标记录，而无需另设数据库或头字段。
+每次变更都使用 `Agent.inject()` 插入一条 Round 为 0、来源为 goal 的消息，其中包含带版本的完整快照；clear 则包含带修订号的墓碑。变更会在持久 `agent/inbox/spliced` 插入项中提交，即使其上下文仍在队列中且从未抵达模型也是如此；后续移除或丢弃不会回滚变更。如果同一消息获准成为 `user/message`，回放会对照插入项验证其 id、来源、元数据和渲染后的 `<goal_state>...</goal_state>` 内容，而不会再次应用变更。这个描述性分隔符沿用了仓库已有的 `<workspace_context>` 约定，也符合 [Anthropic 关于用一致且描述明确的 XML 标签组织混合提示词内容的公开指南](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags)。这是公开的模型体验先例，并非对任何提供方专有训练语料的推断。会话日志是唯一的持久真源，因此持久化和 fork 会继承 goal 记录，而无需另设数据库或头字段。
 
-回放折叠会校验 JSON 形状、来源归属、渲染内容、新 id、修订连续性、生命周期转换、计数器以及单个目标内单调递增的时间戳。目标回合是当前活跃修订上带正数且连续编号的 `user/message` 来源，且不能超过 `maxGoalRounds`；普通会话轮次不会影响该计数器。当前格式的畸形记录会使回放失败，而不会被忽略或修复。
+回放折叠只从 inbox 插入项派生变更，并校验 JSON 形状、来源归属、渲染内容、后续准入时消息 id 的一致性、新 id、修订连续性、生命周期转换、计数器以及单个 goal 内单调递增的时间戳。只有当前活跃修订上带正数且连续编号、已准入的 `user/message` 来源才会推进 Goal Round，且不能超过 `maxGoalRounds`；普通会话轮次不会影响该计数器。当前格式的畸形记录会使回放失败，而不会被忽略或修复。
 
-当 `Agent.inject()` 在活跃工具批次中延迟变更时，服务会在进程内叠加已接受的载荷，使后续变更可以使用新的修订号。FIFO 追加可见后，协调过程只移除完全匹配的载荷；重入的追加观察器对每次变更只投影一次。增量回放会在每个有效事件后推进游标，并停留在首个损坏事件处，因此后续读取会报告同一个持久故障。重启后仍以持久日志为准。
+服务按消息 id 对账注入的变更与其同步 inbox 插入项，因此重入插入观察器对每项已接受变更只应用一次，后续准入只校验一致性。增量回放会在每个有效事件后推进游标，并停留在首个损坏事件处，因此后续读取会报告同一个持久故障。重启后仍以持久日志为准。
 
 ### 生命周期与实时激活态
 
@@ -36,12 +36,12 @@ Status: implemented
 
 ## 测试
 
-单元测试固定创建默认值、精确实时 agent 校验、比较并交换拒绝、所有生命周期转换、阻塞原因校验与保留、恢复时的上限执行、清除与替换、种子回放和 `SessionStore.fork()` 继承、会话启动与生命周期所有者解除激活、活跃目标重新激活、FIFO 延迟变更协调、重入追加观察、注入拒绝回滚、损坏事件的稳定回放、服务与监听器销毁、监听器隔离、挂钟后退钳制、严格记录解码、生命周期连续性、来源与内容一致性，以及连续目标回合归属。无密钥 Loader/stdio 进程测试通过测试专用 `cordis.yml` 挂载服务与生命周期消费者，再从外部读取持久 JSONL，以验证模型可见快照以及不存在未经请求的目标回合。包源码受仓库逐文件 100% 覆盖率门禁约束。
+单元测试固定创建默认值、精确实时 agent 校验、比较并交换拒绝、所有生命周期转换、阻塞原因校验与保留、恢复时的上限执行、清除与替换、种子回放和 `SessionStore.fork()` 继承、会话启动与生命周期所有者解除激活、活跃目标重新激活、持久插入折叠、重入插入观察、准入一致性、丢弃上下文后的持久性、注入拒绝回滚、损坏事件的稳定回放、服务与监听器销毁、监听器隔离、挂钟后退钳制、严格记录解码、生命周期连续性，以及连续 Goal Round 归属。无密钥 Loader/stdio 进程测试通过测试专用 `cordis.yml` 挂载服务与生命周期消费方，再从外部读取持久 JSONL，以验证 goal 记录以及不存在未经请求的 Goal Round。包源码受仓库逐文件 100% 覆盖率门禁约束。
 
 ## 考虑过的替代方案
 
 - **把目标存入独立数据库或会话头**——不予采纳，因为会话日志已经提供顺序、持久化、fork 前缀与可重建性；第二份存储会引入原子性和谱系问题。
-- **使用模型不可见的纯日志事件**——不予采纳，因为会改变后续模型行为的持久状态必须满足仓库日志不变量，保持模型可见且可重建。
+- **使用不带排队上下文、仅供 goal 使用的日志事件**——不予采纳，因为会改变后续模型行为的持久状态必须拥有可重建的模型输入路径。inbox 插入在提供持久提交的同时保留了这条面向模型的路径。
 - **持久化激活态并自动重启**——不予采纳，因为打开或恢复会话时必须等待人类输入；持久阶段记录状态，而不是再次消耗资源的授权。
 - **把所有会话轮次都计为目标回合**——不予采纳，因为同一会话可以包含人类澄清、检查和无关工作；只有归属于目标的继续执行轮次才消耗该预算。
 - **向 `dsh-agent-loop` 添加目标状态或通用循环抽象**——不予采纳，因为状态与继续执行策略可以通过现有插件、`Agent` 动词和事件组合，而无需赋予默认循环实现特权。
@@ -50,7 +50,7 @@ Status: implemented
 
 - 目标历史作为普通会话数据，在持久化、恢复、无关节点压缩和会话 fork 后继续保留。
 - 恢复与 fork 会暴露同一持久阶段，但在显式恢复变更激活目标前不会执行任何操作。
-- 完整快照便于检查和严格回放，但在压缩隐藏它们之前，会在模型历史中重复目标描述与状态字段。
+- 完整快照便于检查和严格回放；获准后，它们会在模型历史中重复目标描述与状态字段，直到压缩将其遮蔽。
 - 修订号与生命周期校验会尽早拒绝遭篡改、部分写入或生产者不一致的目标记录。
 - 回合上限只约束继续执行次数；当回合、token、费用、时间或提供方限制停止工作时，策略消费者会把它们映射为不同的阻塞原因。
 
diff --git a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.i18n.yaml b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.i18n.yaml
index 176211d25b..e640b5ee66 100644
--- a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.md
-2026-07-22-docked-web-goal-bar.md: f014da61d2fa0bf25121c040dae99354ab15de9d
-2026-07-22-docked-web-goal-bar.zh.md: f62c6efbb2d330fb7d5ab74138eb781f1a1bc06c
+2026-07-22-docked-web-goal-bar.md: 4f160d590f02ea5237ffb39bdac10aa26f95ddb8
+2026-07-22-docked-web-goal-bar.zh.md: a226bc130ab49df389e24f869b2f640e2c1cff4e
diff --git a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.md b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.md
index f014da61d2..4f160d590f 100644
--- a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.md
+++ b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.md
@@ -16,13 +16,13 @@ Visibility drives the label and actions: active shows "Ongoing Goal" with pause/
 
 `GoalBarActions` lives in ui-goal's slot contract (`packages/client/ui-goal/src/client/slots.ts`) and carries exactly the rendered verbs: `onEdit`/`onPause`/`onResume`/`onClear`. Each callback asynchronously returns an explicit success/failure result so `GoalBar` owns its transitions and error display. `apply.ts` wires them to the runtime session methods; the runtime session resolves the current goal's compare-and-set ref internally, so the UI passes no ref.
 
-The runtime session gains the goal surface the strip (and future UI) needs: `fetchGoal` populates the snapshot on open, and a live `context/message` carrying `goal/change` meta triggers a coalesced refetch — concurrent triggers share the in-flight `goal.get`, while a trigger received during that read schedules one coalesced trailing read so independently ordered notifications and GET responses cannot leave stale state. Window replays never refetch, and matching the meta kind (rather than a goal key) also catches clear tombstones written by other clients. The six mutation verbs fold transport failures into `{ ok: false }` results like every sibling session method, and a get result older than a mutation response that landed mid-flight is dropped.
+The runtime session gains the goal surface the strip (and future UI) needs through the host-computed `goal` projection. The history tail seeds its whole current value, and `session/projection` frames update it when durable `agent/inbox/spliced` insertions commit goal snapshots or clear tombstones; later context admission is irrelevant to UI freshness. The four rendered mutation verbs fold transport failures into `{ ok: false }` results like every sibling session method.
 
 The strip's background is `--dsw-alias-interactive-bg-hover` rather than the mock's literal `#F5F6F7`: the translucent hover gray resolves to that value over the white light-theme base and lifts the strip off the composer card in dark mode, where a static light token would sink. All colors are `--dsw-*` tokens.
 
 ## Testing
 
-`packages/client/ui-goal/tests/goalbar.spec.tsx` pins the behavior through props alone: loading/absent/complete render nothing, the active strip renders label/objective and fires clear, the edit form prefills, rejects empty, saves on Enter, cancels on Esc, and resets when the goal's identity changes, the active strip fires pause, the paused strip fires resume, and the blocked strip exposes the reason tooltip. Component failure-path cases prove that a failed edit preserves its draft and that edit/resume/clear errors remain visible in the bar. The skeleton specs mount `ConversationRoot` with and without `goalActions`; the undefined case is seeded with an active goal, so the missing gate — not the missing goal — is what hides the strip. Runtime session specs pin the folded-error results, the live-only in-flight-plus-trailing refetch, and the stale-read guard. A keyless real-browser smoke boots the assembled application through `boot → RPC → runtime → GoalBar` and records an inline snapshot of the rendered label, objective, and actions.
+`packages/client/ui-goal/tests/goalbar.spec.tsx` pins the behavior through props alone: loading/absent/complete render nothing, the active strip renders label/objective and fires clear, the edit form prefills, rejects empty, saves on Enter, cancels on Esc, and resets when the goal's identity changes, the active strip fires pause, the paused strip fires resume, and the blocked strip exposes the reason tooltip. Component failure-path cases prove that a failed edit preserves its draft and that edit/resume/clear errors remain visible in the bar. The skeleton specs mount `ConversationRoot` with and without `goalActions`; the undefined case is seeded with an active goal, so the missing gate — not the missing goal — is what hides the strip. Runtime session specs pin folded-error results and projection updates. A keyless real-browser smoke boots the assembled application through `boot → RPC → runtime → GoalBar` and records an inline snapshot of the rendered label, objective, and actions.
 
 ## Alternatives considered
 
@@ -34,6 +34,6 @@ The strip's background is `--dsw-alias-interactive-bg-hover` rather than the moc
 ## Consequences
 
 - Goal presence in the web UI is a standalone composer-context strip: sparkle, phase label, truncated objective, and pause/edit/clear (resume replacing pause when paused) — the browser client's first goal surface.
-- The runtime session exposes the goal verbs over RPC with folded transport errors, and refreshes the snapshot's goal on open and on live goal-change meta (coalesced, guarded against stale reads).
+- The runtime session exposes the goal verbs over RPC with folded transport errors and consumes the host's durable whole-goal projection on open and live updates.
 - Objective editing is reachable from the UI for the first time, through `goal.edit` with the runtime-owned ref; complete remains available to other surfaces (`/goal`, model tools).
 - `goal === null` renders nothing; the composer carries no persistent create affordance — creation is the `/goal` command's job.
diff --git a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.zh.md b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.zh.md
index f62c6efbb2..a226bc130a 100644
--- a/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.zh.md
+++ b/.agents/notes/implemented/feature/2026-07-22-docked-web-goal-bar.zh.md
@@ -16,13 +16,13 @@ Web UI 此前没有任何目标相关的界面：目标栈已随模型工具、T
 
 `GoalBarActions` 位于 ui-goal 的槽位契约（`packages/client/ui-goal/src/client/slots.ts`），只携带实际渲染的动词：`onEdit`/`onPause`/`onResume`/`onClear`。每个回调都会异步返回显式成功／失败结果，因此 `GoalBar` 自行负责界面转换和错误显示。`apply.ts` 把它们接到运行时会话方法上；运行时会话在内部解析当前目标的 compare-and-set ref，因此 UI 不传 ref。
 
-运行时会话获得了横条（以及未来 UI）所需的目标表面：`fetchGoal` 在打开时填充快照；携带 `goal/change` 元数据的 live `context/message` 触发合并重新拉取——并发触发器共享正在执行的 `goal.get`，读取期间收到的触发器会安排一次合并后的尾随读取，避免彼此独立排序的通知和 GET 响应留下陈旧状态。窗口重放绝不触发重新拉取，且匹配元数据 kind（而不是 goal 键）还能捕获其他客户端写入的清除墓碑。六个变更动词与所有同类会话方法一样，把传输层失败折叠为 `{ ok: false }` 结果；比在拉取途中落地的变更响应更旧的 get 结果会被丢弃。
+运行时会话通过由 host 计算的 `goal` 投影获得横条（以及未来 UI）所需的 goal 表面。历史尾页会提供完整当前值作为初始状态；持久 `agent/inbox/spliced` 插入项提交 goal 快照或 clear 墓碑时，`session/projection` 帧会更新该值，后续上下文准入与 UI 新鲜度无关。4 个实际渲染的变更动词与所有同类会话方法一样，把传输层失败折叠为 `{ ok: false }` 结果。
 
 横条的背景色用 `--dsw-alias-interactive-bg-hover`，而不是设计稿里的字面值 `#F5F6F7`：这个半透明的悬浮灰在浅色主题的白色底上正好解析为该值，而在深色模式下能把横条从输入框卡片上衬托出来，静态的浅色 token 在深色模式下会沉进去。所有颜色都是 `--dsw-*` token。
 
 ## 测试
 
-`packages/client/ui-goal/tests/goalbar.spec.tsx` 仅通过 props 固定这些行为：加载中／无目标／已完成时不渲染；active 横条渲染标签和目标内容并触发清除；编辑表单预填内容、拒绝空值、按 Enter 保存、按 Esc 取消，并在目标身份变化时重置；active 横条触发暂停；paused 横条触发恢复；blocked 横条暴露原因悬浮提示。组件失败路径用例证明编辑失败时保留草稿，并且编辑／恢复／清除错误持续显示在横条中。skeleton 规格测试分别挂载带与不带 `goalActions` 的 `ConversationRoot`；未定义的情形预置了一个 active 目标，因此隐藏横条的是缺失的挂载门，而不是缺失的目标。运行时会话规格测试固定了折叠错误结果、仅 live 的执行中读取加尾随读取，以及陈旧读取守卫。一个无密钥真实浏览器冒烟测试通过 `boot → RPC → runtime → GoalBar` 启动组装后的应用，并以内联快照记录渲染出的标签、目标内容和操作。
+`packages/client/ui-goal/tests/goalbar.spec.tsx` 仅通过 props 固定这些行为：加载中／无目标／已完成时不渲染；active 横条渲染标签和目标内容并触发清除；编辑表单预填内容、拒绝空值、按 Enter 保存、按 Esc 取消，并在目标身份变化时重置；active 横条触发暂停；paused 横条触发恢复；blocked 横条暴露原因悬浮提示。组件失败路径用例证明编辑失败时保留草稿，并且编辑／恢复／清除错误持续显示在横条中。skeleton 规格测试分别挂载带与不带 `goalActions` 的 `ConversationRoot`；未定义的情形预置了一个 active 目标，因此隐藏横条的是缺失的挂载门，而不是缺失的目标。运行时会话规格测试固定折叠错误结果和投影更新。一个无密钥真实浏览器冒烟测试通过 `boot → RPC → runtime → GoalBar` 启动组装后的应用，并以内联快照记录渲染出的标签、目标内容和操作。
 
 ## 考虑过的替代方案
 
@@ -34,6 +34,6 @@ Web UI 此前没有任何目标相关的界面：目标栈已随模型工具、T
 ## 后果
 
 - Web UI 中目标的存在形式是独立的 composer 上下文横条：闪光图标、阶段标签、截断的目标内容，以及暂停／编辑／清除（暂停时恢复取代暂停）——这是浏览器客户端的第一个目标界面。
-- 运行时会话通过 RPC 暴露目标动词并折叠传输层错误，且在打开时和 live 目标变更元数据到达时刷新快照中的目标（合并拉取，带陈旧读取守卫）。
+- 运行时会话通过 RPC 暴露 goal 动词并折叠传输层错误，在打开时和 live 更新时消费 host 的持久完整 goal 投影。
 - 目标内容首次可以从 UI 编辑，经由 `goal.edit`，ref 由运行时持有；完成对其他界面（`/goal`、模型工具）照常可用。
 - `goal === null` 时不渲染任何内容；输入框不提供常驻的创建入口，创建是 `/goal` 命令的职责。
diff --git a/apps/cli/tests/snapshots/multi-turn-conversation/terminal.expected.txt b/apps/cli/tests/snapshots/multi-turn-conversation/terminal.expected.txt
index c0c38592c3..93af2f1b76 100644
--- a/apps/cli/tests/snapshots/multi-turn-conversation/terminal.expected.txt
+++ b/apps/cli/tests/snapshots/multi-turn-conversation/terminal.expected.txt
@@ -11,12 +11,12 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "You                                                                                                 "
-  style 0-2 fg=bright-magenta bold underline
-5| "Reply with exactly the word: ONE. No tools.                                                         "
-6| <blank>
-7| "Plan mode on. Use /plan off to leave.                                                               "
+4| "Plan mode on. Use /plan off to leave.                                                               "
   style 0-36 dim
+5| <blank>
+6| "You                                                                                                 "
+  style 0-2 fg=bright-magenta bold underline
+7| "Reply with exactly the word: ONE. No tools.                                                         "
 8| <blank>
 9| "Assistant                                                                                           "
   style 0-8 fg=bright-magenta bold underline
@@ -28,13 +28,13 @@ buffer
 13| "Model wait 0.0s · Completed 2026-07-21 12:00:00                                                     "
   style 0-46 dim
 14| <blank>
-15| "Context · plan-mode"
-  style 0-18 dim
-16| "The user switched this session back to the default mode.                                            "
-  style 0-55 dim
-17| <blank>
-18| "Plan mode off.                                                                                      "
+15| "Plan mode off.                                                                                      "
   style 0-13 dim
+16| <blank>
+17| "Context · plan-mode"
+  style 0-18 dim
+18| "The user switched this session back to the default mode.                                            "
+  style 0-55 dim
 19| <blank>
 20| "You                                                                                                 "
   style 0-2 fg=bright-magenta bold underline
diff --git a/docs/agent-lifecycle.md b/docs/agent-lifecycle.md
index ae1d830208..5bf2c4454c 100644
--- a/docs/agent-lifecycle.md
+++ b/docs/agent-lifecycle.md
@@ -27,7 +27,7 @@ sequenceDiagram
   Driver->>Hooks: <code>agent/pre-step</code> waterfall
   Hooks-->>Driver: authoritative reject or enter(messages)
   alt proposed step rejected or pre-step failed
-    Driver-->>Driver: claimed batch stays removed; no turn opens
+    Driver-->>Driver: claimed batch stays removed, no turn opens
   else enter proposed step
   Driver->>Session: <code>turn/start</code>
   Driver->>Session: <code>step/start</code>
diff --git a/docs/architecture.i18n.yaml b/docs/architecture.i18n.yaml
index 2825174e30..baed6a09e7 100644
--- a/docs/architecture.i18n.yaml
+++ b/docs/architecture.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/architecture.md
-architecture.md: d2e094be43f22abb6d829cd6484c09e8f34130b0
-architecture.zh.md: f9588b52ac220d509d340270bed36036ef8f8b03
+architecture.md: d85756ec33b9ec2c179dd7bbefa0847d3fd02753
+architecture.zh.md: 147bafb388de44a7feb2c8b7c1de2c80ad65439b
diff --git a/docs/architecture.md b/docs/architecture.md
index d2e094be43..d85756ec33 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -6,9 +6,7 @@ English | [中文](architecture.zh.md)
 
 ## Overview
 
-Harnesses are [Cordis](cordis-primer.md) contexts; packages contribute services, typed events, and disposable registrations.
-
-`packages/core/` groups the default agent flow; capabilities remain plugins.
+Harnesses are [Cordis](cordis-primer.md) contexts; packages contribute services, typed events, and disposable registrations. `packages/core/` groups the default flow; capabilities remain plugins.
 
 ### Default Services
 
@@ -59,8 +57,8 @@ Events are the service extension API ([catalog](cordis-catalog/events.md), [prod
 ### Event Domains
 
 - **Session events** are durable log facts emitted through `session/event`.
-- **Agent events** carry live `Agent` for inbox notifications, step entry, status, request shaping, validation, and continuation.
-- **Capability events** let owning seams attach policy and adapters without a loop import.
+- **Agent events** carry live `Agent` for inbox, step, status, request, validation, and continuation.
+- **Capability events** attach policy and adapters without a loop import.
 
 ### Interception Semantics
 
@@ -68,9 +66,9 @@ Waterfalls are around-middleware: listeners delegate with `next()`; returning wi
 
 ## Default Loop Lifecycle
 
-A **session** is append-only. An ordinary **turn** claims one queued follow-up; injection claims none. A successor awaits its predecessor's checkpoint but may share its `running` interval ([decision](../.agents/notes/implemented/simplification/2026-07-17-one-send-one-turn.md)). A turn ends when model or plugins stop it; a **step** is one model request plus tools. Quotes in the [sequence below](agent-lifecycle.md) mark durable events.
+A **session** is append-only. A **turn** claims one queued follow-up, waits for its predecessor's checkpoint, and may share its `running` interval ([decision](../.agents/notes/implemented/simplification/2026-07-17-one-send-one-turn.md)); injection claims none. A **step** is one model request plus tools. Quotes in the [sequence](agent-lifecycle.md) mark durable events.
 
-Creation without an id mints `<config-id>-session-<uuid>`; `sessionId` resumes or creates, while `resumeSessionId` requires history. Resume restores lineage and delegation depth before publication. Setup failures emit `agent-loop/config-start-failed`; teardown is silent.
+Creation without an id mints `<config-id>-session-<uuid>`; `sessionId` resumes or creates, while `resumeSessionId` requires history. Resume restores lineage and delegation depth before publication; setup failure emits `agent-loop/config-start-failed`.
 
 ### Turn Flow
 
@@ -81,31 +79,27 @@ choose declarative identity and fresh/resume path
   -> enable driving -> agent/session-start(source) -> start driver
 forever:
   wait for waking inbox work
-  claim next-step input plus one next-turn message with a pure deletion splice
+  claim next-step input plus one next-turn message
   -> emit agent/inbox/claimed({ message, turn }) for each claimed message
   -> emit agent/status(running) if starting an interval
   -> agent/pre-step(messages, { turn, step, signal })
     reject or listener failure -> the claimed batch stays removed; stop the driver
     enter:
       'turn/start'
-    STEP loop:
+    step loop:
       'step/start'
       append the returned batch as separate 'user/message' events
-      assemble system prompt and tool schemas
-      snapshot the derived messages (the reconstruction boundary)
-      agent/request (config only) -> prepare adapter defaults/provenance under turn signal -> log request/header -> llm/stream (frozen, registration-bound)
-      'assistant/chunk'
-      'assistant/message'
+      assemble prompt and schemas -> snapshot derived messages
+      agent/request -> prepare adapter defaults/provenance -> request/header -> llm/stream
+      'assistant/chunk' -> 'assistant/message'
       schedule tool calls by ctx.tools.executionMode:
         exclusive -> barrier
-        parallel -> rolling pool, <= maxParallelToolCalls; reclassify-at-start; scheduler failure -> stop starts, drain dispatches
-        start -> 'tool/call' -> ordered tools/pre-execute -> concurrent tools/execute
+        parallel -> rolling pool, <= maxParallelToolCalls; reclassify at start
+        start -> 'tool/call' -> tools/pre-execute -> concurrent tools/execute
         model-order result -> ordered tools/post-execute -> 'tool/result'
       'step/end'
       tools owe another request or next-step inbox is nonempty
-        -> claim next-step messages
-        -> agent/pre-step (messages may be empty for a tool continuation)
-        -> append the entered batch and continue
+        -> claim -> agent/pre-step -> append entered batch -> continue
       otherwise agent/turn-stopping -> re-check the next-step inbox
     'turn/end' -> agent/settled
   start the next waking queued message, or emit agent/status(idle)
@@ -117,23 +111,21 @@ idle inject:
 
 Each step assembles ordered prompt sections, tool schemas, and variables; unknown references fail the turn. `dsh-system-prompt` owns identity and persona; the loop supplies `provider`, `model`, and `cwd` ([prompt ownership](../.agents/notes/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md)).
 
-`inject()` always queues non-waking `next-step` context. A collecting or running driver claims it at the nearest later prompt boundary; an idle driver leaves it pending until `followup()` or `steer()` wakes the driver. Post-tool `additionalContexts` enter the same next-step inbox after their tool results.
+`inject()` queues non-waking `next-step` context; an idle driver leaves it pending until `followup()` or `steer()` wakes the driver. Post-tool `additionalContexts` use the same inbox. `agent/pre-step` receives the exclusive claimed batch and upcoming turn, step, and signal. Reject opens no step; enter supplies the complete batch appended after `step/start`. Empty tool continuations still traverse the waterfall, whose final value settles all rewrites.
 
-`agent/pre-step` receives the exclusive batch already removed from the inbox and finalizes whether the loop enters the proposed step. Its `PreStepContext` carries the exact upcoming turn and step plus the cancellation signal. `{ kind: 'reject' }` opens no step; `{ kind: 'enter', messages }` supplies the complete batch appended after `step/start`. A tool continuation with no newly claimed inbox input submits an empty batch so listeners can still contribute current-step context. Waterfall rewrites settle only in the final returned `messages` value.
-
-Pruning precedes summaries; overflow retries require durable progress. `agent/request-error` may authorize a same-step retry before the step closes; cancellation wins, and the retry reuses that step's frozen prompt assembly. Adapter-owned `retryPolicy` makes normal mode bounded; always mode delegates specialized recovery before retrying until success or cancellation ([compaction](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md), [retry foundation](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md), [provider policy](../.agents/notes/implemented/feature/2026-07-24-provider-retry-policies.md)).
+Pruning precedes summaries; overflow retries require durable progress. `agent/request-error` may authorize a same-step retry of the frozen prompt; cancellation wins. Adapter `retryPolicy` bounds normal mode, while always mode retries after specialized recovery ([compaction](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md), [retry foundation](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md), [provider policy](../.agents/notes/implemented/feature/2026-07-24-provider-retry-policies.md)).
 
 ### Failure Boundaries
 
-Final-adapter selection, dispatch, and iteration failures become terminal `finish { kind: 'error' | 'aborted', failure }` chunks before the loop handles them. `agent/request-error` receives request coordinates, normalized `LlmFailure`, the prepared registration's retry policy when available, and the signal; middleware and consumer errors remain thrown outside request recovery. Failed chunks commit neither messages nor tool calls.
+Adapter selection, dispatch, and iteration failures become terminal error or aborted `finish` chunks. `agent/request-error` receives request coordinates, normalized `LlmFailure`, available retry policy, and signal; middleware and consumer errors remain outside recovery. Failed chunks commit neither messages nor tool calls.
 
-Other failures use `agent/error`. Cancellation and disposal beat recovery. Before request-header commit, the turn signal cancels asynchronous model-capability preparation; undispatched tools get synthetic `tool/call`/`ABORTED_BEFORE_DISPATCH` pairs. Effective `cancel(cause)` emits its cause before queue clearing and abort; observers cannot veto; idle calls emit nothing. Durability records user or parent cancellation as `aborted`, teardown as `disposed`; teardown awaits quiescence. The cause affects reporting, not late result-context handling ([decision](../.agents/notes/implemented/architecture/2026-07-16-explicit-turn-cancellation.md)).
+Other failures use `agent/error`; cancellation and disposal beat recovery. Before request-header commit, the turn signal cancels capability preparation; undispatched tools get synthetic `tool/call`/`ABORTED_BEFORE_DISPATCH` pairs. Effective `cancel(cause)` reports its cause before clearing and aborting; idle calls emit nothing. Durability distinguishes `aborted` cancellation from `disposed` teardown, which awaits quiescence ([decision](../.agents/notes/implemented/architecture/2026-07-16-explicit-turn-cancellation.md)).
 
 Turn and step events are turn-enclosed; the loop appends injected `user/message` events only from entered batches inside a turn. Reload closes an interrupted tail with a synthetic turn end. After close, only `agent/error` reports failures. Each turn has one [TurnEndReason](core-data-structures/session.md#why-a-turn-ended-turnendreasonmap).
 
 ### Agent Handles
 
-`ctx.agents` returns `AgentHandle { agent, dispose() }`. Plugins drive agents with `followup()`, `steer()`, and `inject()`; `cancel()` stops work, while the awaited disposer owns teardown. `followup()` only queues an identified message: its `MessageId` follows durable inbox insertion, claiming, and discard notifications, not a prompt-specific output or turn ending. `agent/status` and `whenIdle()` describe whole-agent activity; only a caller that explicitly owns an activity interval may summarize that interval as a run result ([decision](../.agents/notes/implemented/architecture/2026-07-30-followup-enqueue-and-owned-runs.md)).
+`ctx.agents` returns `AgentHandle { agent, dispose() }`. Plugins drive agents with `followup()`, `steer()`, and `inject()`; `cancel()` stops work and the awaited disposer tears down. A follow-up `MessageId` follows durable inbox insertion, claiming, and discard notifications, not prompt output or turn ending. `agent/status` and `whenIdle()` describe whole-agent activity; only an interval owner may summarize a run result ([decision](../.agents/notes/implemented/architecture/2026-07-30-followup-enqueue-and-owned-runs.md)).
 
 ### Agent Scope
 
@@ -147,9 +139,9 @@ The session log is authoritative. `deriveMessages()` projects model history; raw
 
 **Model-visible ⟺ logged**: messages at `step/start` plus the folded `request/header` reconstruct every request; the header also marks adapter-materialized defaults so the next proposal can discard them and resolve the selected route without losing explicit conversation settings. Package-owned `dsh-agent-loop/invariant` can assert reconstructability through `ctx.invariants` ([reconstructability](../.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.md)).
 
-Durability is a plugin concern. Backends eagerly drain synchronous `session/event` notifications. `session/flush` barriers precede each request and top-level tool dispatch, then follow `turn/end` before another queued turn or idle observation. `SessionPersistence` stores `SessionEvent` directly and metadata in `SessionHeader`; JSONL defaults to checksummed Zstandard, while SQLite shares the contract ([decision](../.agents/notes/implemented/bug-fix/2026-07-21-semantic-session-checkpoints.md)).
+Durability is a plugin concern. Backends eagerly drain synchronous `session/event` notifications. `session/flush` precedes requests and top-level tool dispatch, and follows `turn/end` before another turn or idle. `SessionPersistence` stores events and header metadata; JSONL defaults to checksummed Zstandard and SQLite shares the contract ([decision](../.agents/notes/implemented/bug-fix/2026-07-21-semantic-session-checkpoints.md)).
 
-Log-only events may sit between turns. Owners append through `Session`, flushing only for durability. `session/title` relies on eager persistence and lifecycle drains. Latest title wins with provenance; fallback and provider work never delays responses. Such records are fork boundaries, so forks inherit titles ([decision](../.agents/notes/implemented/feature/2026-07-21-log-backed-session-titles.md)).
+Log-only events may sit between turns. Owners append through `Session`, flushing only for durability. Latest `session/title` wins with provenance without delaying responses; title records are fork boundaries ([decision](../.agents/notes/implemented/feature/2026-07-21-log-backed-session-titles.md)).
 
 ### Model Content
 
@@ -165,7 +157,7 @@ A swappable capability usually has **interface / implementation / consumer** lay
 
 Exceptions combine LLM interface/consumer, filesystem policy, web registries, and named skill/subagent providers. Subagents spawn fresh, fork a completed-turn prefix, or use ACP children ([subagent.md](core-data-structures/subagent.md)).
 
-`dsh-workspace-context` uses the first `agent/pre-step` to prepend its baseline directly to the next-step inbox, replacing any still-pending predecessor, and appends `ctx.fs`-discovered changes through `tools/post-execute`; its [decision](../.agents/notes/implemented/feature/2026-06-24-workspace-context.md) records isolation. Because claim precedes pre-step, that baseline may miss the current request. `dsh-paths` owns shared paths.
+`dsh-workspace-context` prepends its baseline to the next-step inbox on first `agent/pre-step`, replacing a pending predecessor, and adds `ctx.fs` changes after tools. Because claim precedes pre-step, the baseline may miss the current request ([decision](../.agents/notes/implemented/feature/2026-06-24-workspace-context.md)). `dsh-paths` owns shared paths.
 
 ### Bundles And Apps
 
diff --git a/docs/architecture.zh.md b/docs/architecture.zh.md
index f9588b52ac..147bafb388 100644
--- a/docs/architecture.zh.md
+++ b/docs/architecture.zh.md
@@ -6,9 +6,7 @@
 
 ## 概览
 
-每个 harness 都是 [Cordis](cordis-primer.md) 上下文；各包（package）贡献服务、类型化事件和可释放的注册项。
-
-`packages/core/` 汇集默认的 agent（智能体）流程；各项功能仍以插件形式存在。
+每个 harness 都是 [Cordis](cordis-primer.md) 上下文；各包（package）贡献服务、类型化事件和可释放的注册项。`packages/core/` 汇集默认流程；各项功能仍以插件形式存在。
 
 ### 默认服务
 
@@ -18,7 +16,7 @@
 | `ctx.sessions` | `dsh-session` | 内存中的事件溯源会话 |
 | `ctx.systemPrompt` | `dsh-system-prompt` | 有序提示词片段、工具 schema 和变量 |
 | `ctx.tools` | `dsh-tools` | 工具注册表和[执行流水线](tool-execution-pipeline.md) |
-| `ctx.agents` | `dsh-agent` | 活跃 agent、委托创建、`agent/*` 事件、进程内发起方作用域 |
+| `ctx.agents` | `dsh-agent` | 活跃 agent（智能体）、委托创建、`agent/*` 事件、进程内发起方作用域 |
 | `ctx.agentLoop` | `dsh-agent-loop` | 实体 `Agent` 驱动器 |
 
 ### 功能服务
@@ -59,8 +57,8 @@
 ### 事件域
 
 - **会话事件**是通过 `session/event` 发出的持久日志事实。
-- **Agent 事件**携带活跃 `Agent`，用于 inbox 通知、步骤进入、状态、请求塑形、验证和续跑。
-- **功能事件**让所属服务边界无需导入循环即可附加策略和适配器。
+- **Agent 事件**携带活跃 `Agent`，用于 inbox、步骤、状态、请求、验证和续跑。
+- **功能事件**无需导入循环即可附加策略和适配器。
 
 ### 拦截语义
 
@@ -68,9 +66,9 @@ waterfall（瀑布式事件）是环绕中间件：监听器通过 `next()` 委
 
 ## 默认循环生命周期
 
-**会话**采用仅追加方式。普通**轮次**领取一条已排队的后续消息；注入不领取输入。后续轮次会等待前一轮次的检查点，但可以与其共用同一个 `running` 区间（[决策](../.agents/notes/implemented/simplification/2026-07-17-one-send-one-turn.md)）。模型或插件停止轮次时，该轮次结束；一个**步骤**包含一次模型请求及其工具。[下文时序](agent-lifecycle.md)中的引号标记持久事件。
+**会话**采用仅追加方式。一个**轮次**领取一条已排队的后续消息，等待前一轮次的检查点，并可与其共用 `running` 区间（[决策](../.agents/notes/implemented/simplification/2026-07-17-one-send-one-turn.md)）；注入不领取输入。一个**步骤**包含一次模型请求及其工具。[时序](agent-lifecycle.md)中的引号标记持久事件。
 
-创建时若未提供 id，流程会生成 `<config-id>-session-<uuid>`；`sessionId` 用于恢复或创建会话，而 `resumeSessionId` 要求已有历史。恢复流程在发布前还原沿袭关系和委托深度。初始化失败会发出 `agent-loop/config-start-failed`；拆卸过程保持静默。
+创建时若未提供 id，流程会生成 `<config-id>-session-<uuid>`；`sessionId` 用于恢复或创建会话，而 `resumeSessionId` 要求已有历史。恢复流程在发布前还原沿袭关系和委托深度；初始化失败会发出 `agent-loop/config-start-failed`。
 
 ### 轮次流程
 
@@ -81,31 +79,27 @@ choose declarative identity and fresh/resume path
   -> enable driving -> agent/session-start(source) -> start driver
 forever:
   wait for waking inbox work
-  claim next-step input plus one next-turn message with a pure deletion splice
+  claim next-step input plus one next-turn message
   -> emit agent/inbox/claimed({ message, turn }) for each claimed message
   -> emit agent/status(running) if starting an interval
   -> agent/pre-step(messages, { turn, step, signal })
     reject or listener failure -> the claimed batch stays removed; stop the driver
     enter:
       'turn/start'
-    STEP loop:
+    step loop:
       'step/start'
       append the returned batch as separate 'user/message' events
-      assemble system prompt and tool schemas
-      snapshot the derived messages (the reconstruction boundary)
-      agent/request (config only) -> prepare adapter defaults/provenance under turn signal -> log request/header -> llm/stream (frozen, registration-bound)
-      'assistant/chunk'
-      'assistant/message'
+      assemble prompt and schemas -> snapshot derived messages
+      agent/request -> prepare adapter defaults/provenance -> request/header -> llm/stream
+      'assistant/chunk' -> 'assistant/message'
       schedule tool calls by ctx.tools.executionMode:
         exclusive -> barrier
-        parallel -> rolling pool, <= maxParallelToolCalls; reclassify-at-start; scheduler failure -> stop starts, drain dispatches
-        start -> 'tool/call' -> ordered tools/pre-execute -> concurrent tools/execute
+        parallel -> rolling pool, <= maxParallelToolCalls; reclassify at start
+        start -> 'tool/call' -> tools/pre-execute -> concurrent tools/execute
         model-order result -> ordered tools/post-execute -> 'tool/result'
       'step/end'
       tools owe another request or next-step inbox is nonempty
-        -> claim next-step messages
-        -> agent/pre-step (messages may be empty for a tool continuation)
-        -> append the entered batch and continue
+        -> claim -> agent/pre-step -> append entered batch -> continue
       otherwise agent/turn-stopping -> re-check the next-step inbox
     'turn/end' -> agent/settled
   start the next waking queued message, or emit agent/status(idle)
@@ -117,23 +111,21 @@ idle inject:
 
 每个步骤都会组装有序提示词片段、工具 schema 和变量；未知引用会使该轮次失败。`dsh-system-prompt` 负责身份和角色设定；循环提供 `provider`、`model` 和 `cwd`（[提示词归属](../.agents/notes/implemented/architecture/2026-07-05-prompt-variables-and-tool-guidance-ownership.md)）。
 
-`inject()` 始终将不会唤醒的上下文排入 `next-step`。collecting 或 running 驱动器会在最近的后续提示词边界领取它；idle 驱动器则会让它保持待处理，直至 `followup()` 或 `steer()` 唤醒驱动器。工具执行后的 `additionalContexts` 会在对应工具结果之后进入同一个 next-step inbox。
+`inject()` 将不会唤醒驱动器的上下文排入 `next-step`；空闲驱动器会让它保持待处理，直至 `followup()` 或 `steer()` 唤醒。工具执行后的 `additionalContexts` 使用同一个 inbox。`agent/pre-step` 接收独占的已领取批次，以及即将使用的轮次、步骤和信号。拒绝则不进入步骤；进入则提供在 `step/start` 后追加的完整批次。空的工具续跑仍会经过 waterfall，其最终值一次性结算所有改写。
 
-`agent/pre-step` 接收已经从 inbox 删除的独占批次，并最终决定循环是否进入拟议步骤。它的 `PreStepContext` 携带准确的 turn、step 与取消 signal。`{ kind: 'reject' }` 不会打开步骤；`{ kind: 'enter', messages }` 提供在 `step/start` 后追加的完整批次。当工具 continuation 没有新领取的 inbox 输入时，批次为空，listener 仍可为当前步骤贡献上下文。waterfall 的全部改写只在最终返回的 `messages` 中一次性结算。
-
-裁剪先于摘要；溢出重试必须取得持久进展。`agent/request-error` 可以在步骤关闭前授权一次同步骤重试；取消优先，且重试会复用该步骤已冻结的 prompt assembly。适配器拥有的 `retryPolicy` 使 normal mode 保持有界；always mode 先委托专门恢复，再持续重试直至成功或取消（[压缩](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md)、[重试基础](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)、[提供方策略](../.agents/notes/implemented/feature/2026-07-24-provider-retry-policies.md)）。
+裁剪先于摘要；溢出重试必须取得持久进展。`agent/request-error` 可以授权使用冻结提示词进行同步骤重试；取消优先。适配器的 `retryPolicy` 使 normal mode 保持有界，always mode 则在专门恢复后重试（[压缩](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md)、[重试基础](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)、[提供方策略](../.agents/notes/implemented/feature/2026-07-24-provider-retry-policies.md)）。
 
 ### 失败边界
 
-最终适配器选择、分发与迭代失败会在 loop 处理前成为终止 `finish { kind: 'error' | 'aborted', failure }` chunk。`agent/request-error` 接收请求坐标、标准化 `LlmFailure`、可用时已准备注册项的重试策略以及信号；middleware 与消费方错误仍在请求恢复之外抛出。失败分片既不提交消息，也不提交工具调用。
+适配器选择、分发与迭代失败会成为 error 或 aborted 类型的终止 `finish` 分片。`agent/request-error` 接收请求坐标、标准化 `LlmFailure`、可用的重试策略和信号；middleware 与消费方错误仍在恢复之外。失败分片既不提交消息，也不提交工具调用。
 
-其他故障使用 `agent/error`。取消和资源释放优先于恢复。在提交请求头之前，轮次信号会取消异步模型能力准备；尚未分派的工具会得到合成的 `tool/call`/`ABORTED_BEFORE_DISPATCH` 对。实际生效的 `cancel(cause)` 在清空队列和中止前发出原因；观察方不能否决；空闲调用不发事件。持久化层将用户或父级取消记录为 `aborted`，拆卸记录为 `disposed`；拆卸会等待完全停稳。原因只影响报告方式，不影响延迟完成的结果上下文处理（[决策](../.agents/notes/implemented/architecture/2026-07-16-explicit-turn-cancellation.md)）。
+其他故障使用 `agent/error`；取消和资源释放优先于恢复。在提交请求头之前，轮次信号会取消功能准备；尚未分派的工具会得到合成的 `tool/call`/`ABORTED_BEFORE_DISPATCH` 对。实际生效的 `cancel(cause)` 会在清空队列和中止前报告原因；空闲调用不发事件。持久化层以 `aborted` 区分取消，以 `disposed` 区分会等待完全停稳的拆卸（[决策](../.agents/notes/implemented/architecture/2026-07-16-explicit-turn-cancellation.md)）。
 
 轮次和步骤事件均位于轮次边界内；loop 只会在轮次内从进入步骤的批次追加注入的 `user/message`。重新加载会用合成的轮次结束事件闭合中断尾部。关闭后仅由 `agent/error` 报告故障。每个轮次有一个 [TurnEndReason](core-data-structures/session.md#why-a-turn-ended-turnendreasonmap)。
 
 ### Agent 句柄
 
-`ctx.agents` 返回 `AgentHandle { agent, dispose() }`。插件用 `followup()`、`steer()` 和 `inject()` 驱动 agent；`cancel()` 停止工作，而拆卸由需等待完成的 disposer 负责。`followup()` 只会将一条带标识的消息排队：其 `MessageId` 跟踪持久 inbox 的插入、领取与丢弃通知，而不标识某个提示词特有的输出或轮次结束。`agent/status` 与 `whenIdle()` 描述整个 agent 的活动；只有显式拥有某个活动区间的调用方才能将该区间概括为一次运行的结果（[决策](../.agents/notes/implemented/architecture/2026-07-30-followup-enqueue-and-owned-runs.md)）。
+`ctx.agents` 返回 `AgentHandle { agent, dispose() }`。插件用 `followup()`、`steer()` 和 `inject()` 驱动 agent；`cancel()` 停止工作，需等待完成的 disposer 负责拆卸。后续消息的 `MessageId` 跟踪持久 inbox 的插入、领取与丢弃通知，而不标识提示词输出或轮次结束。`agent/status` 与 `whenIdle()` 描述整个 agent 的活动；只有区间所有方才能将其概括为一次运行结果（[决策](../.agents/notes/implemented/architecture/2026-07-30-followup-enqueue-and-owned-runs.md)）。
 
 ### Agent 作用域
 
@@ -147,9 +139,9 @@ idle inject:
 
 **模型可见 ⟺ 已记录**：`step/start` 时的消息与折叠后的 `request/header` 可以重建每个请求；该 header 还会标记适配器填入的默认值，使下一次提议可以丢弃这些值并解析所选路由，同时不丢失显式对话设置。该包的 `dsh-agent-loop/invariant` 可通过 `ctx.invariants` 断言可重建性（[可重建性](../.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.md)）。
 
-持久性由插件负责。后端会尽快排空同步的 `session/event` 通知。`session/flush` 屏障位于每次请求与顶层工具分发之前，并在 `turn/end` 之后、处理另一个已排队轮次或观察到空闲状态之前执行。`SessionPersistence` 直接存储 `SessionEvent`，并将元数据存入 `SessionHeader`；JSONL 默认采用带校验和的 Zstandard，SQLite 遵循同一契约（[决策](../.agents/notes/implemented/bug-fix/2026-07-21-semantic-session-checkpoints.md)）。
+持久性由插件负责。后端会尽快排空同步的 `session/event` 通知。`session/flush` 位于请求与顶层工具分发之前，并在 `turn/end` 之后、另一个轮次或空闲状态之前执行。`SessionPersistence` 存储事件和 header 元数据；JSONL 默认采用带校验和的 Zstandard，SQLite 遵循同一契约（[决策](../.agents/notes/implemented/bug-fix/2026-07-21-semantic-session-checkpoints.md)）。
 
-纯日志事件可以位于轮次之间。事件所有方通过 `Session` 追加，仅为持久性而刷写。`session/title` 依赖尽快持久化与生命周期排空。最新标题按后写覆盖并携带来源信息；回退与提供方工作绝不会延迟响应。这类记录可作为 fork 边界，因此 fork 会继承标题（[决策](../.agents/notes/implemented/feature/2026-07-21-log-backed-session-titles.md)）。
+纯日志事件可以位于轮次之间。事件所有方通过 `Session` 追加，仅为持久性而刷写。最新的 `session/title` 携带来源信息并按后写覆盖，且不会延迟响应；标题记录可作为 fork 边界（[决策](../.agents/notes/implemented/feature/2026-07-21-log-backed-session-titles.md)）。
 
 ### 模型内容
 
@@ -165,7 +157,7 @@ idle inject:
 
 例外情况包括 LLM（大语言模型）合并接口和消费方、文件系统整合策略、web 使用注册表、skill 和 subagent 使用具名提供方。subagent 可以通过 spawn 创建全新实例、fork 一个已完成轮次的前缀，或使用 ACP（Agent Client Protocol）子 agent（[subagent.md](core-data-structures/subagent.md)）。
 
-`dsh-workspace-context` 在第一次 `agent/pre-step` 将基线直接 prepend 到 next-step inbox，并替换仍在等待的前序消息；它通过 `tools/post-execute` 追加 `ctx.fs` 发现的变更。其[决策](../.agents/notes/implemented/feature/2026-06-24-workspace-context.md)记录隔离方式。由于领取发生在 pre-step 之前，该基线可能赶不上当前请求。`dsh-paths` 负责共享路径。
+`dsh-workspace-context` 在第一次 `agent/pre-step` 将基线 prepend 到 next-step inbox，替换仍在等待的前序消息，并在工具执行后添加 `ctx.fs` 变更。由于领取发生在 pre-step 之前，该基线可能赶不上当前请求（[决策](../.agents/notes/implemented/feature/2026-06-24-workspace-context.md)）。`dsh-paths` 负责共享路径。
 
 ### 组合包与应用
 
diff --git a/docs/config-catalog.md b/docs/config-catalog.md
index 4d57fd1d96..c38f9ad6a1 100644
--- a/docs/config-catalog.md
+++ b/docs/config-catalog.md
@@ -467,7 +467,7 @@ export interface Config {
 }
 ```
 
-Source: [`packages/goal/goal/src/index.ts:118`](../packages/goal/goal/src/index.ts)
+Source: [`packages/goal/goal/src/index.ts:130`](../packages/goal/goal/src/index.ts)
 
 ## `@deepseek-ai/dsh-hooks-claude`
 
@@ -765,7 +765,7 @@ export interface ReplayModelConfig {
 
 Depends on: [`RetryPolicyConfig`](../packages/llm/llm/src/index.ts)
 
-Source: [`packages/support/llm-replay/src/index.ts:617`](../packages/support/llm-replay/src/index.ts)
+Source: [`packages/support/llm-replay/src/index.ts:620`](../packages/support/llm-replay/src/index.ts)
 
 ## `@deepseek-ai/dsh-llm-retry`
 
@@ -1600,7 +1600,7 @@ Requires: `agents`
 export interface Config {
   /** IANA time zone used for the rendered timestamp. Omit to resolve the Node process's system zone at plugin load. */
   timeZone?: string
-  /** Minimum milliseconds between durable injections in one session. Omit or set to 0 to inject on every eligible pre-step attempt. */
+  /** Minimum milliseconds between durable injections in one session. Omit or set to 0 to inject at every eligible step. */
   refreshIntervalMs?: number
 }
 ```
diff --git a/docs/cordis-catalog/events.md b/docs/cordis-catalog/events.md
index 6bc6e27824..a73d6804be 100644
--- a/docs/cordis-catalog/events.md
+++ b/docs/cordis-catalog/events.md
@@ -444,13 +444,13 @@ Source: [`packages/fs/fs/src/index.ts:54`](../../packages/fs/fs/src/index.ts)
 
 ### `goal/changed` — emit
 
-Goal mutation accepted by one live agent. The matching context event is already appended or queued in that agent's active tool-batch FIFO. Listener failures are contained. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.
+Goal mutation accepted by one live agent. The matching message has already committed through a durable inbox insertion; later admission or discard does not change that fact. Listener failures are contained. Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.
 
 ```ts cordis-catalog
 /**
- * Goal mutation accepted by one live agent. The matching context event is
- * already appended or queued in that agent's active tool-batch FIFO.
- * Listener failures are contained.
+ * Goal mutation accepted by one live agent. The matching message has
+ * already committed through a durable inbox insertion; later admission or
+ * discard does not change that fact. Listener failures are contained.
  * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.
  * @param agent - agent whose session owns the goal.
  * @param change - fresh current projection or clear tombstone.
diff --git a/docs/core-data-structures/core.i18n.yaml b/docs/core-data-structures/core.i18n.yaml
index a6d9a70719..626b88c98d 100644
--- a/docs/core-data-structures/core.i18n.yaml
+++ b/docs/core-data-structures/core.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/core-data-structures/core.md
-core.md: d5fb4b1efb4a74d7a01ee09e4086863e981e2122
-core.zh.md: 2cb15e20a87160e0ff0bc375752282969d77124b
+core.md: 6bb01c91446fbb51e3c472bba3ed3a51b56704ff
+core.zh.md: c52bf426020c591aab66d66658b46dfd8dc9b8af
diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md
index d5fb4b1efb..6bb01c9144 100644
--- a/docs/core-data-structures/core.md
+++ b/docs/core-data-structures/core.md
@@ -485,7 +485,7 @@ Source: [`packages/core/agent/src/types.ts`](../../packages/core/agent/src/types
 type InboxTarget = 'next-turn' | 'next-step'
 ```
 
-Every pending occurrence is its `UserMessage`; `MessageId` is the sole identity. `Inbox.append`, `prepend`, `update`, `remove`, and `splice` record normalized durable `agent/inbox/spliced` mutations and reject duplicate pending ids. Ordinary removals are cancellations. `claim(target)` atomically removes the proposed step batch through pure deletion splices; the loop separately emits per-message claimed notifications. Whole-queue consumers such as UI projections reconstruct `nextTurn` and `nextStep` from the durable splices, while consumers following one message use the exact `agent/inbox/inserted`, `claimed`, and `discarded` notifications.
+Every pending occurrence is its `UserMessage`; `MessageId` is the sole identity. `Inbox.append`, `prepend`, `update`, `remove`, `clear`, and `splice` record normalized durable `agent/inbox/spliced` mutations and reject duplicate pending ids. Ordinary removals and `clear()` are cancellations. `claim(target)` atomically removes the proposed step batch through pure deletion splices; the loop separately emits per-message claimed notifications. Whole-queue consumers such as UI projections reconstruct `nextTurn` and `nextStep` from the durable splices, while consumers following one message use the exact `agent/inbox/inserted`, `claimed`, and `discarded` notifications.
 
 ```ts type-equiv
 /** Options for {@link Agent.cancel}. */
diff --git a/docs/core-data-structures/core.zh.md b/docs/core-data-structures/core.zh.md
index 2cb15e20a8..c52bf42602 100644
--- a/docs/core-data-structures/core.zh.md
+++ b/docs/core-data-structures/core.zh.md
@@ -493,7 +493,7 @@ type SessionEvent<T extends SessionEventType = SessionEventType> = {
 type InboxTarget = 'next-turn' | 'next-step'
 ```
 
-每个待处理入队项就是其 `UserMessage`；`MessageId` 是唯一标识。`Inbox.append`、`prepend`、`update`、`remove` 与 `splice` 会记录规范化的持久 `agent/inbox/spliced` 变更，并拒绝重复的待处理 id。普通删除表示取消。`claim(target)` 通过纯删除 splice 原子移除拟进入步骤的批次；循环另行逐条发出 claimed 通知。UI 投影等整体队列消费方通过持久 splice 重建 `nextTurn` 与 `nextStep`，而跟踪单条消息的消费方使用精确的 `agent/inbox/inserted`、`claimed` 与 `discarded` 通知。
+每个待处理入队项就是其 `UserMessage`；`MessageId` 是唯一标识。`Inbox.append`、`prepend`、`update`、`remove`、`clear` 与 `splice` 会记录规范化的持久 `agent/inbox/spliced` 变更，并拒绝重复的待处理 id。普通删除和 `clear()` 都表示取消。`claim(target)` 通过纯删除 splice 原子移除拟进入步骤的批次；循环另行逐条发出 claimed 通知。UI 投影等整体队列消费方通过持久 splice 重建 `nextTurn` 与 `nextStep`，而跟踪单条消息的消费方使用精确的 `agent/inbox/inserted`、`claimed` 与 `discarded` 通知。
 
 ```ts type-equiv
 /** Options for {@link Agent.cancel}. */
diff --git a/docs/core-data-structures/goal.i18n.yaml b/docs/core-data-structures/goal.i18n.yaml
index 0cdd666254..85cd092263 100644
--- a/docs/core-data-structures/goal.i18n.yaml
+++ b/docs/core-data-structures/goal.i18n.yaml
@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
-#   pnpm run verify-translation-pairing --write
-goal.md: 704a93320cc38d1b9400edc2d9ad2342bc11dccd
-goal.zh.md: b2e083843a70823bf6a6b43e046b1f38f4e11e22
+#   pnpm run verify-translation-pairing --write docs/core-data-structures/goal.md
+goal.md: bb8b4525f7e12a904b1ba77cdefa4e4e1650ffe8
+goal.zh.md: c61bfcf7683b3aa835ee7cca58aba861af847d17
diff --git a/docs/core-data-structures/goal.md b/docs/core-data-structures/goal.md
index 704a93320c..bb8b4525f7 100644
--- a/docs/core-data-structures/goal.md
+++ b/docs/core-data-structures/goal.md
@@ -71,10 +71,10 @@ interface GoalView extends GoalSnapshot {
 
 ## Durable changes
 
-Every mutation is a round-zero goal-sourced `user/message` whose metadata is either a complete snapshot or a clear tombstone. The version, metadata, goal source, and verbatim rendered content form one replay invariant.
+Every mutation is a round-zero goal-sourced message whose metadata is either a complete snapshot or a clear tombstone. It commits when `agent.inject()` records that message in the `inserted` payload of a durable `agent/inbox/spliced` event. The strict fold and persisted projection derive mutations only from these insertions, so deleting the queued context does not roll back goal state. A later `user/message` with the same id verifies the source, metadata, and verbatim rendered content against the insertion without applying the mutation again.
 
 ```ts type-equiv
-/** Full-snapshot goal mutation retained in a model-visible context event. */
+/** Full-snapshot goal mutation committed by an injected inbox message. */
 interface GoalSnapshotChangeMeta {
   readonly kind: 'goal/change'
   readonly version: 1
@@ -97,7 +97,7 @@ interface GoalClearChangeMeta {
 }
 ```
 
-Goal state changes use round `0`. A continuation consumer attributes each admitted user-message turn with a positive, sequential round number and the current revision; replay rejects gaps, stale revisions, stopped phases, and cap overflow.
+Goal state changes use round `0`. A continuation consumer attributes each admitted user-message turn with a positive, sequential round number and the current revision; only these admitted `user/message` events advance `roundsStarted`. Replay rejects gaps, stale revisions, stopped phases, and cap overflow.
 
 ```ts type-equiv
 /** Message attribution for durable goal state and continuation rounds. */
@@ -133,7 +133,7 @@ interface EditGoalRequest {
 ```
 
 ```ts type-equiv
-/** Live notification after one goal mutation has been accepted for logging. */
+/** Live notification after one goal mutation commits through inbox insertion. */
 interface GoalChanged {
   readonly operation: GoalOperation
   readonly ref: GoalRef
@@ -144,4 +144,4 @@ interface GoalChanged {
 
 ## Service behavior
 
-[`GoalService`](../../packages/goal/goal/src/index.ts) resolves creation defaults, folds strict replay, enforces exact-live-agent identity and compare-and-set mutations, overlays deferred injections, and emits contained `goal/changed` notifications. The package [README](../../packages/goal/goal/README.md) owns the callable and model-visible contract.
+[`GoalService`](../../packages/goal/goal/src/index.ts) resolves creation defaults, folds strict replay from durable inbox insertions, enforces exact-live-agent identity and compare-and-set mutations, reconciles later admission by message id, and emits contained `goal/changed` notifications. The package [README](../../packages/goal/goal/README.md) owns the callable and model-visible contract.
diff --git a/docs/core-data-structures/goal.zh.md b/docs/core-data-structures/goal.zh.md
index b2e083843a..c61bfcf768 100644
--- a/docs/core-data-structures/goal.zh.md
+++ b/docs/core-data-structures/goal.zh.md
@@ -71,10 +71,10 @@ interface GoalView extends GoalSnapshot {
 
 ## 持久变更
 
-每次变更都是 Round 编号为 0、来源为目标的 `user/message`，其元数据要么是完整快照，要么是清除墓碑。版本、元数据、目标来源和逐字渲染内容共同构成一项回放不变量。
+每次变更都是 Round 编号为 0、来源为目标的消息，其元数据要么是完整快照，要么是清除墓碑。当 `agent.inject()` 将该消息记录到持久 `agent/inbox/spliced` 事件的 `inserted` 载荷时，变更即已提交。严格折叠与持久投影只从这些插入项派生变更，因此删除队列中的上下文不会回滚目标状态。随后具有相同 id 的 `user/message` 会对照插入项验证来源、元数据和逐字渲染内容，而不会再次应用变更。
 
 ```ts type-equiv
-/** Full-snapshot goal mutation retained in a model-visible context event. */
+/** Full-snapshot goal mutation committed by an injected inbox message. */
 interface GoalSnapshotChangeMeta {
   readonly kind: 'goal/change'
   readonly version: 1
@@ -97,7 +97,7 @@ interface GoalClearChangeMeta {
 }
 ```
 
-目标状态变更使用 Round `0`。续跑消费方会为每个获准的用户消息轮次标注正数且连续的 Round 编号和当前修订号；回放会拒绝编号缺口、陈旧修订号、已停止阶段和超出上限。
+目标状态变更使用 Round `0`。续跑消费方会为每个获准的用户消息轮次标注正数且连续的 Round 编号和当前修订号；只有这些获准的 `user/message` 事件会推进 `roundsStarted`。回放会拒绝编号缺口、陈旧修订号、已停止阶段和超出上限。
 
 ```ts type-equiv
 /** Message attribution for durable goal state and continuation rounds. */
@@ -133,7 +133,7 @@ interface EditGoalRequest {
 ```
 
 ```ts type-equiv
-/** Live notification after one goal mutation has been accepted for logging. */
+/** Live notification after one goal mutation commits through inbox insertion. */
 interface GoalChanged {
   readonly operation: GoalOperation
   readonly ref: GoalRef
@@ -144,4 +144,4 @@ interface GoalChanged {
 
 ## 服务行为
 
-[`GoalService`](../../packages/goal/goal/src/index.ts) 解析创建默认值、执行严格回放折叠、校验确切的活跃 agent 身份、以比较并设置方式执行变更、叠加延迟注入，并发出 `goal/changed` 通知；监听器故障会被隔离。包 [README](../../packages/goal/goal/README.md) 负责记录可调用契约和面向模型的契约。
+[`GoalService`](../../packages/goal/goal/src/index.ts) 解析创建默认值、从持久 inbox 插入项执行严格回放折叠、校验确切的活跃 agent 身份、以比较并设置方式执行变更、按消息 id 对账后续准入，并发出 `goal/changed` 通知；监听器故障会被隔离。包 [README](../../packages/goal/goal/README.md) 负责记录可调用契约和面向模型的契约。
diff --git a/docs/core-data-structures/session.i18n.yaml b/docs/core-data-structures/session.i18n.yaml
index 23ac7d9f2f..8f5c8fe397 100644
--- a/docs/core-data-structures/session.i18n.yaml
+++ b/docs/core-data-structures/session.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/core-data-structures/session.md
-session.md: 05c993755cc50fe9f1c6fe8836fc6a6fb4196ed2
-session.zh.md: ac7e59c8563a0319609557c7346919b6e1d78ad2
+session.md: 829a52c5ec4017b47f8fa6c7d45f20b0ff9630d4
+session.zh.md: 6a70c1548fdd3b2b13bbcd1b102fadecdb34bf11
diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md
index 05c993755c..829a52c5ec 100644
--- a/docs/core-data-structures/session.md
+++ b/docs/core-data-structures/session.md
@@ -26,9 +26,9 @@ interface UserMessage extends Message {
  */
 interface SessionEventMap {
   /**
-   * Opens turn `turn`. Every turn begins when the loop admits queued input;
-   * the following identified `user/message` event or batch records the
-   * admitted input.
+   * Opens turn `turn`. Every turn begins after the loop claims queued input
+   * and accepts the pre-step result; the following identified `user/message`
+   * event or batch records the messages entering the step.
    */
   'turn/start': { turn: number }
   /**
@@ -46,7 +46,7 @@ interface SessionEventMap {
    * A user-role message on the model-visible surface: a direct human prompt
    * (the queued message claimed for this turn), a synthetic `agent.inject()`
    * context (file-change notices, subdir AGENTS.md, skill content, cron
-   * notifications, …), or an admitted goal continuation round. All three
+   * notifications, …), or an entered goal continuation round. All three
    * project their `content` verbatim; `source` tells them apart.
    */
   'user/message': UserMessage
@@ -494,6 +494,8 @@ interface TurnEndReasonMap {
   completed: { kind: 'completed' }
   /** A cancellation request interrupted the live turn. */
   aborted: { kind: 'aborted'; reason: AgentCancelCause }
+
+  blocked: { kind: 'blocked' }
   /**
    * The turn failed.
    */
diff --git a/docs/core-data-structures/session.zh.md b/docs/core-data-structures/session.zh.md
index ac7e59c856..6a70c1548f 100644
--- a/docs/core-data-structures/session.zh.md
+++ b/docs/core-data-structures/session.zh.md
@@ -26,9 +26,9 @@ interface UserMessage extends Message {
  */
 interface SessionEventMap {
   /**
-   * Opens turn `turn`. Every turn begins when the loop admits queued input;
-   * the following identified `user/message` event or batch records the
-   * admitted input.
+   * Opens turn `turn`. Every turn begins after the loop claims queued input
+   * and accepts the pre-step result; the following identified `user/message`
+   * event or batch records the messages entering the step.
    */
   'turn/start': { turn: number }
   /**
@@ -46,7 +46,7 @@ interface SessionEventMap {
    * A user-role message on the model-visible surface: a direct human prompt
    * (the queued message claimed for this turn), a synthetic `agent.inject()`
    * context (file-change notices, subdir AGENTS.md, skill content, cron
-   * notifications, …), or an admitted goal continuation round. All three
+   * notifications, …), or an entered goal continuation round. All three
    * project their `content` verbatim; `source` tells them apart.
    */
   'user/message': UserMessage
@@ -498,6 +498,8 @@ interface TurnEndReasonMap {
   completed: { kind: 'completed' }
   /** A cancellation request interrupted the live turn. */
   aborted: { kind: 'aborted'; reason: AgentCancelCause }
+
+  blocked: { kind: 'blocked' }
   /**
    * The turn failed.
    */
diff --git a/docs/event-producer-consumer.md b/docs/event-producer-consumer.md
index f891f21cc4..b892675ea2 100644
--- a/docs/event-producer-consumer.md
+++ b/docs/event-producer-consumer.md
@@ -8,18 +8,18 @@ This matrix shows which packages dispatch each harness-owned event and which pac
 | Event | Mode | Declared in | Dispatchers | Listeners |
 | --- | --- | --- | --- | --- |
 | `agent-loop/config-start-failed` | `emit` | [`packages/core/agent-loop/src/index.ts:157`](../packages/core/agent-loop/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`events.dispatch`) | [`tui`](../packages/ui/tui) |
-| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:171`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
-| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:180`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`agent-loop`](../packages/core/agent-loop), [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
-| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:281`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`session-telemetry`](../packages/telemetry/session-telemetry), [`tui`](../packages/ui/tui) |
-| `agent/inbox/claimed` | `emit` | [`packages/core/agent/src/types.ts:201`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`tui`](../packages/ui/tui) |
-| `agent/inbox/discarded` | `emit` | [`packages/core/agent/src/types.ts:209`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`tui`](../packages/ui/tui) |
-| `agent/inbox/inserted` | `emit` | [`packages/core/agent/src/types.ts:193`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | — |
-| `agent/pre-step` | `waterfall` | [`packages/core/agent/src/types.ts:225`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic), [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`plan-mode`](../packages/plan/plan-mode), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`time-context`](../packages/context/time-context), [`tmux-context`](../packages/context/tmux-context), [`tool-skill`](../packages/skill/tool-skill), [`tui`](../packages/ui/tui), [`user-approval`](../packages/ui/user-approval), [`workspace-context`](../packages/context/workspace-context) |
-| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:242`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`agent`](../packages/core/agent) |
-| `agent/request-error` | `waterfall` | [`packages/core/agent/src/types.ts:254`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic), [`llm-retry`](../packages/llm/llm-retry) |
-| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:202`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal`](../packages/goal/goal), [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`workspace-context`](../packages/context/workspace-context) |
-| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:190`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`compact-basic`](../packages/compact/compact-basic), [`goal-session`](../packages/goal/goal-session), [`jsonrpc`](../packages/ui/jsonrpc), [`tui`](../packages/ui/tui) |
-| `agent/turn-stopping` | `serial` | [`packages/core/agent/src/types.ts:269`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
+| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:166`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
+| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:175`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`agent-loop`](../packages/core/agent-loop), [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
+| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:285`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`session-telemetry`](../packages/telemetry/session-telemetry), [`tui`](../packages/ui/tui) |
+| `agent/inbox/claimed` | `emit` | [`packages/core/agent/src/types.ts:201`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
+| `agent/inbox/discarded` | `emit` | [`packages/core/agent/src/types.ts:209`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
+| `agent/inbox/inserted` | `emit` | [`packages/core/agent/src/types.ts:193`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal-session`](../packages/goal/goal-session) |
+| `agent/pre-step` | `waterfall` | [`packages/core/agent/src/types.ts:233`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic), [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`plan-mode`](../packages/plan/plan-mode), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`time-context`](../packages/context/time-context), [`tmux-context`](../packages/context/tmux-context), [`tool-skill`](../packages/skill/tool-skill), [`tui`](../packages/ui/tui), [`user-approval`](../packages/ui/user-approval), [`workspace-context`](../packages/context/workspace-context) |
+| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:246`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`agent`](../packages/core/agent) |
+| `agent/request-error` | `waterfall` | [`packages/core/agent/src/types.ts:258`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic), [`llm-retry`](../packages/llm/llm-retry) |
+| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:221`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal`](../packages/goal/goal), [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
+| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:185`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`compact-basic`](../packages/compact/compact-basic), [`goal-session`](../packages/goal/goal-session), [`jsonrpc`](../packages/ui/jsonrpc), [`tui`](../packages/ui/tui) |
+| `agent/turn-stopping` | `serial` | [`packages/core/agent/src/types.ts:273`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
 | `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:30`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/acp/acp), `apiproxy` |
 | `commands/change` | `emit` | [`packages/ui/commands/src/index.ts:154`](../packages/ui/commands/src/index.ts) | [`commands`](../packages/ui/commands) (`events.dispatch`) | `apiproxy`, [`tui`](../packages/ui/tui) |
 | `credentials/updated` | `emit` | [`packages/credentials/credentials/src/index.ts:67`](../packages/credentials/credentials/src/index.ts) | [`credentials`](../packages/credentials/credentials) (`events.dispatch`) | `apiproxy`, [`credentials`](../packages/credentials/credentials) |
@@ -32,7 +32,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac
 | `llm/stream` | `waterfall` | [`packages/llm/llm/src/index.ts:57`](../packages/llm/llm/src/index.ts) | [`llm`](../packages/llm/llm) (`waterfall`) | [`agent-loop`](../packages/core/agent-loop), [`llm`](../packages/llm/llm), [`llm-replay`](../packages/support/llm-replay), [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`session-title`](../packages/session-title/session-title) |
 | `session/created` | `emit` | [`packages/core/session/src/index.ts:50`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | `apiproxy`, [`compact`](../packages/compact/compact), [`goal`](../packages/goal/goal), [`hook-protocol`](../packages/hooks/hook-protocol), [`jsonrpc`](../packages/ui/jsonrpc), [`llm-retry`](../packages/llm/llm-retry), [`plan-mode`](../packages/plan/plan-mode), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`session-telemetry`](../packages/telemetry/session-telemetry), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval) |
 | `session/disposed` | `emit` | [`packages/core/session/src/index.ts:60`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`agent-loop`](../packages/core/agent-loop), `apiproxy`, [`session-persistence`](../packages/session-persistence/session-persistence), [`session-projection-cache`](../packages/session-projection/session-projection-cache), [`session-telemetry`](../packages/telemetry/session-telemetry), [`session-title`](../packages/session-title/session-title) |
-| `session/event` | `emit` | [`packages/core/session/src/index.ts:72`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`acp`](../packages/acp/acp), `apiproxy`, [`cli-demo`](../packages/examples/cli-demo), [`compact`](../packages/compact/compact), [`compact-basic`](../packages/compact/compact-basic), [`goal`](../packages/goal/goal), [`goal-session`](../packages/goal/goal-session), [`hook-protocol`](../packages/hooks/hook-protocol), [`jsonrpc`](../packages/ui/jsonrpc), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`session-projection`](../packages/session-projection/session-projection), [`session-projection-cache`](../packages/session-projection/session-projection-cache), [`session-telemetry`](../packages/telemetry/session-telemetry), [`session-title`](../packages/session-title/session-title), [`token-meter`](../packages/llm/token-meter), [`tools`](../packages/core/tools), [`tui`](../packages/ui/tui), [`user-approval`](../packages/ui/user-approval), [`workspace-context`](../packages/context/workspace-context) |
+| `session/event` | `emit` | [`packages/core/session/src/index.ts:72`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`acp`](../packages/acp/acp), `apiproxy`, [`cli-demo`](../packages/examples/cli-demo), [`compact`](../packages/compact/compact), [`compact-basic`](../packages/compact/compact-basic), [`goal`](../packages/goal/goal), [`goal-session`](../packages/goal/goal-session), [`hook-protocol`](../packages/hooks/hook-protocol), [`jsonrpc`](../packages/ui/jsonrpc), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`session-projection`](../packages/session-projection/session-projection), [`session-projection-cache`](../packages/session-projection/session-projection-cache), [`session-telemetry`](../packages/telemetry/session-telemetry), [`session-title`](../packages/session-title/session-title), [`token-meter`](../packages/llm/token-meter), [`tools`](../packages/core/tools), [`tui`](../packages/ui/tui), [`user-approval`](../packages/ui/user-approval) |
 | `session/flush` | `parallel` | [`packages/core/session/src/index.ts:82`](../packages/core/session/src/index.ts) | [`session`](../packages/core/session) (`events.dispatch`) | [`session-persistence`](../packages/session-persistence/session-persistence), [`session-telemetry`](../packages/telemetry/session-telemetry) |
 | `settings/document-updated` | `emit` | [`packages/settings/settings/src/index.ts:150`](../packages/settings/settings/src/index.ts) | [`settings`](../packages/settings/settings) (`events.dispatch`) | `apiproxy` |
 | `settings/updated` | `emit` | [`packages/settings/settings/src/index.ts:137`](../packages/settings/settings/src/index.ts) | [`settings`](../packages/settings/settings) (`events.dispatch`) | [`settings`](../packages/settings/settings) |
@@ -47,7 +47,7 @@ This matrix shows which packages dispatch each harness-owned event and which pac
 | `tools/change` | `emit` | [`packages/core/tools/src/index.ts:160`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`emit`) | - |
 | `tools/code-dispatch-log` | `waterfall` | [`packages/core/tools/src/index.ts:142`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`spill-policy`](../packages/spill/spill-policy) |
 | `tools/execute` | `waterfall` | [`packages/core/tools/src/index.ts:117`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`timeout-policy`](../packages/timeout/timeout-policy) |
-| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:129`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`spill-policy`](../packages/spill/spill-policy), [`tool-fs-search`](../packages/fs/tool-fs-search), [`workspace-context`](../packages/context/workspace-context) |
+| `tools/post-execute` | `waterfall` | [`packages/core/tools/src/index.ts:129`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`spill-policy`](../packages/spill/spill-policy), [`tool-fs-search`](../packages/fs/tool-fs-search) |
 | `tools/pre-execute` | `waterfall` | [`packages/core/tools/src/index.ts:106`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`tool-tasks`](../packages/tasks/tool-tasks) |
 | `tools/result` | `emit` | [`packages/core/tools/src/index.ts:150`](../packages/core/tools/src/index.ts) | [`tools`](../packages/core/tools) (`events.dispatch`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess), [`workspace-context`](../packages/context/workspace-context) |
 | `workflow/agent-end` | `emit` | [`packages/workflow/workflow/src/index.ts:81`](../packages/workflow/workflow/src/index.ts) | [`workflow`](../packages/workflow/workflow) (`events.dispatch`) | [`workflow`](../packages/workflow/workflow) |
diff --git a/docs/persistence-catalog.md b/docs/persistence-catalog.md
index 97e6dd865c..c94ccd8cc0 100644
--- a/docs/persistence-catalog.md
+++ b/docs/persistence-catalog.md
@@ -97,11 +97,11 @@ Sources: [`packages/core/session/src/types.ts:262`](../packages/core/session/src
   start: number
   removedCount?: number
   inserted: UserMessage[]
-  outcome?: 'admitted' | 'canceled'
+  outcome?: 'canceled'
 }
 ```
 
-Source: [`packages/core/agent/src/types.ts:292`](../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:296`](../packages/core/agent/src/types.ts)
 
 ### `approval/*`
 
@@ -636,9 +636,9 @@ Source: [`packages/core/session/src/types.ts:181`](../packages/core/session/src/
 
 ```ts persistence-catalog
 /**
- * Opens turn `turn`. Every turn begins when the loop admits queued input;
- * the following identified `user/message` event or batch records the
- * admitted input.
+ * Opens turn `turn`. Every turn begins after the loop claims queued input
+ * and accepts the pre-step result; the following identified `user/message`
+ * event or batch records the messages entering the step.
  */
 'turn/start': { turn: number }
 ```
@@ -654,7 +654,7 @@ Source: [`packages/core/session/src/types.ts:174`](../packages/core/session/src/
  * A user-role message on the model-visible surface: a direct human prompt
  * (the queued message claimed for this turn), a synthetic `agent.inject()`
  * context (file-change notices, subdir AGENTS.md, skill content, cron
- * notifications, …), or an admitted goal continuation round. All three
+ * notifications, …), or an entered goal continuation round. All three
  * project their `content` verbatim; `source` tells them apart.
  */
 'user/message': UserMessage
diff --git a/docs/tool-catalog.md b/docs/tool-catalog.md
index 7d6fa79dea..d772522d6e 100644
--- a/docs/tool-catalog.md
+++ b/docs/tool-catalog.md
@@ -25,7 +25,7 @@ This table connects model-visible tool names to the plugin package and service s
 | `@deepseek-ai/dsh-tool-fs` | `edit`, `read`, `write` | `ctx.tools`, `ctx.fs`, `ctx.systemPrompt` | `tool/call`, `fs/write-intent or fs/edit-intent for mutations`, `fs/observed after successful file operations`, `tool/result` | - | The read-before-write/edit policy is added by `@deepseek-ai/dsh-fs-policy` (an `fs/*` event-gate plugin, no schema change); a deployment that loads these tools is expected to also load it. The tool schemas above are identical with or without the policy plugin. |
 | `@deepseek-ai/dsh-tool-fs-search` | `glob`, `grep` | `ctx.tools`, `ctx.bash`, `ctx.systemPrompt` | `tool/call`, `tool/result` | - | glob and grep are conditional bash-backed discovery tools: they register only when ctx.bash can find `rg`, then run fixed ripgrep commands through ctx.bash as ordinary foreground calls (never background tasks). The catalog uses `sampleOverCapGlobResults: true`; deployments must choose that behavior explicitly. Capped results save the complete formatted list through the optional ctx.spillStore backend; returned locators are follow-up-readable/searchable when the backend exposes local paths in co-located deployments. |
 | `@deepseek-ai/dsh-tool-pty` | `terminal_close`, `terminal_list`, `terminal_open`, `terminal_read`, `terminal_send`, `terminal_signal` | `ctx.tools`, `ctx.pty`, `ctx.systemPrompt`, `ctx.tasks at call time for run_in_background` | `tool/call`, `tool/result` | - | The six terminal tools are opt-in and complement one-shot bash/filesystem tools. `terminal_send(run_in_background: true)` registers with `ctx.tasks`; TUI, named key sequences, BEL, resize, auto-start, and cross-agent sharing are absent from the schema. |
-| `@deepseek-ai/dsh-tool-goal` | `create_goal`, `get_goal`, `update_goal` | `ctx.tools`, `ctx.agents`, `ctx.goals`, `ctx.systemPrompt`, `a calling Agent in an authorized open turn` | `tool/call`, `user/message goal snapshot for mutations`, `tool/result` | - | create, edit, pause, and resume require direct-human root authority; complete and blocked also accept the exact current goal round. The default blocked lower bound is three admitted rounds. |
+| `@deepseek-ai/dsh-tool-goal` | `create_goal`, `get_goal`, `update_goal` | `ctx.tools`, `ctx.agents`, `ctx.goals`, `ctx.systemPrompt`, `a calling Agent in an authorized open turn` | `tool/call`, `agent/inbox/spliced goal snapshot for mutations`, `tool/result` | - | create, edit, pause, and resume require direct-human root authority; complete and blocked also accept the exact current goal round. The default blocked lower bound is three admitted rounds. |
 | `@deepseek-ai/dsh-tool-lsp` | `lsp` | `ctx.tools`, `ctx.lsp`, `ctx.systemPrompt` | `tool/call`, `tool/result` | - | The lsp tool keeps provider selection and language-server subprocesses behind ctx.lsp, so its model-visible schema stays stable across providers. Requires a registered provider (e.g. `@deepseek-ai/dsh-lsp-local`) at runtime; without one, a query returns the structured `LSP_UNAVAILABLE` error rather than changing the schema. |
 | `@deepseek-ai/dsh-tool-ralph` | `ralph` | `ctx.tools`, `ctx.workflows`, `ctx.subagents`, `ctx.systemPrompt`, `a calling Agent (exec.agent parents every fresh round)` | `tool/call`, `tool/result`, `workflow and child session events during execution` | - | A fixed foreground workflow starts one fresh structured child per round; the model selects only the immutable objective and an optional round cap. |
 | `@deepseek-ai/dsh-tool-skill` | `skill` | `ctx.tools`, `ctx.agents`, `ctx.skills` | `tool/call`, `tool/result`, `user/message replacement catalogs via agent.inject()` | - | - |
diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts
index b3508c3ae5..459c8d6554 100644
--- a/examples/acp-agent/tests/acp.snapshot.ts
+++ b/examples/acp-agent/tests/acp.snapshot.ts
@@ -353,8 +353,18 @@ it('packed ACP fixture retains every chunk row kind without changing the logical
   expect([...new Set(rowTypes)].sort()).toStrictEqual(['reasoning-chunks', 'text-chunks', 'tool-call-chunks'])
   const withoutMessageId = (record: unknown): unknown => {
     const cloned = structuredClone(record) as {
+      time?: unknown
       type?: unknown
-      data?: { id?: unknown; message?: { id?: unknown } }
+      data?: {
+        durationMs?: unknown
+        id?: unknown
+        inserted?: Array<{ id?: unknown }>
+        message?: { id?: unknown }
+      }
+    }
+    delete cloned.time
+    if (cloned.type === 'agent/inbox/spliced') {
+      for (const message of cloned.data?.inserted ?? []) delete message.id
     }
     if (cloned.type === 'user/message') delete cloned.data?.id
     if (cloned.type === 'assistant/message'
@@ -362,6 +372,7 @@ it('packed ACP fixture retains every chunk row kind without changing the logical
       || cloned.type === 'steering/message') {
       delete cloned.data?.message?.id
     }
+    if (cloned.type === 'hook/result') delete cloned.data?.durationMs
     return cloned
   }
   const logicalRecords = (records: readonly unknown[]): unknown[] => [
diff --git a/examples/acp-agent/tests/goal-snapshots/goal-session/input.json b/examples/acp-agent/tests/goal-snapshots/goal-session/input.json
index 1301b9d264..815b8062af 100644
--- a/examples/acp-agent/tests/goal-snapshots/goal-session/input.json
+++ b/examples/acp-agent/tests/goal-snapshots/goal-session/input.json
@@ -3,12 +3,11 @@
     { "op": "initialize" },
     { "op": "newSession" },
     {
-      "op": "promptAndWaitForAgentMessage",
-      "text": "Create a durable two-round goal for the ACP snapshot, inspect it, then report readiness.",
-      "waitForText": "GOAL ROUND ONE"
+      "op": "prompt",
+      "text": "Create a durable two-round goal for the ACP snapshot, inspect it, then report readiness."
     },
     { "op": "waitForTurnStart", "minimumTurn": 3 },
     { "op": "cancel", "waitForFile": { "path": ".dsh-snapshot-goal-cancel-ready" } },
-    { "op": "waitForTurnEnd" }
+    { "op": "waitForInboxMessage", "text": "\"phase\":\"paused\"" }
   ]
 }
diff --git a/examples/acp-agent/tests/goal-snapshots/goal-session/session.expected.jsonl b/examples/acp-agent/tests/goal-snapshots/goal-session/session.expected.jsonl
index cf51aed295..d53f92e15b 100644
--- a/examples/acp-agent/tests/goal-snapshots/goal-session/session.expected.jsonl
+++ b/examples/acp-agent/tests/goal-snapshots/goal-session/session.expected.jsonl
@@ -1,54 +1,63 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Create a durable two-round goal for the ACP snapshot, inspect it, then report readiness."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":0,"data":{"title":"Create a durable two-round goal","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":0,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Create a durable two-round goal for the ACP snapshot, inspect it, then report readiness."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":0,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":0,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
-{"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"call_goal_create","name":"create_goal","argumentsDelta":"{\"objective\":\"Finish the ACP goal-session snapshot proof\",\"max_goal_rounds\":2}"}}}
-{"type":"assistant/chunk","seq":7,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_goal_create","name":"create_goal","arguments":"{\"objective\":\"Finish the ACP goal-session snapshot proof\",\"max_goal_rounds\":2}"}}}}
-{"type":"assistant/chunk","seq":8,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":20,"outputTokens":8}}}}
-{"type":"assistant/chunk","seq":9,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
-{"type":"assistant/message","seq":10,"time":0,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"call_goal_create","name":"create_goal","arguments":"{\"objective\":\"Finish the ACP goal-session snapshot proof\",\"max_goal_rounds\":2}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":20,"outputTokens":8}},"sourceEventSeqs":[5,6,7,8,9],"surfaceOp":"append"}
-{"type":"tool/call","seq":11,"time":0,"data":{"turn":1,"step":1,"callId":"call_goal_create","name":"create_goal","arguments":"{\"objective\":\"Finish the ACP goal-session snapshot proof\",\"max_goal_rounds\":2}"}}
-{"type":"tool/result","seq":12,"time":0,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"call_goal_create"},"content":[{"type":"tool-result","toolCallId":"call_goal_create","content":[{"type":"text","text":"{\"goal\":{\"id\":\"goal-{{sessionId}}\",\"revision\":1,\"objective\":\"Finish the ACP goal-session snapshot proof\",\"phase\":\"active\",\"roundsStarted\":0,\"maxGoalRounds\":2},\"activation\":\"armed\"}"}],"isError":false}],"role":"user","id":"{{sessionId}}"}},"sourceEventSeqs":[11],"surfaceOp":"append"}
-{"type":"user/message","seq":13,"time":0,"data":{"content":[{"type":"text","text":"<goal_state>{\"goal\":{\"id\":\"goal-{{sessionId}}\",\"revision\":1,\"objective\":\"Finish the ACP goal-session snapshot proof\",\"phase\":\"active\",\"maxGoalRounds\":2},\"roundsStarted\":0,\"createdAt\":0,\"updatedAt\":0}</goal_state>"}],"source":{"kind":"goal","goalId":"goal-{{sessionId}}","revision":1,"round":0,"change":{"kind":"goal/change","version":1,"operation":"create","goal":{"id":"goal-{{sessionId}}","revision":1,"objective":"Finish the ACP goal-session snapshot proof","phase":"active","maxGoalRounds":2},"roundsStarted":0,"createdAt":0,"updatedAt":0}},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"step/end","seq":14,"time":0,"data":{"turn":1,"step":1}}
-{"type":"step/start","seq":15,"time":0,"data":{"turn":1,"step":2}}
-{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
-{"type":"assistant/chunk","seq":17,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"call_goal_get","name":"get_goal","argumentsDelta":"{}"}}}
-{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_goal_get","name":"get_goal","arguments":"{}"}}}}
-{"type":"assistant/chunk","seq":19,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":30,"outputTokens":4}}}}
-{"type":"assistant/chunk","seq":20,"time":0,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
-{"type":"assistant/message","seq":21,"time":0,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"call_goal_get","name":"get_goal","arguments":"{}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":30,"outputTokens":4}},"sourceEventSeqs":[16,17,18,19,20],"surfaceOp":"append"}
-{"type":"tool/call","seq":22,"time":0,"data":{"turn":1,"step":2,"callId":"call_goal_get","name":"get_goal","arguments":"{}"}}
-{"type":"tool/result","seq":23,"time":0,"data":{"turn":1,"step":2,"message":{"source":{"kind":"tool","callId":"call_goal_get"},"content":[{"type":"tool-result","toolCallId":"call_goal_get","content":[{"type":"text","text":"{\"goal\":{\"id\":\"goal-{{sessionId}}\",\"revision\":1,\"objective\":\"Finish the ACP goal-session snapshot proof\",\"phase\":\"active\",\"roundsStarted\":0,\"maxGoalRounds\":2},\"activation\":\"armed\"}"}],"isError":false}],"role":"user","id":"{{sessionId}}"}},"sourceEventSeqs":[22],"surfaceOp":"append"}
-{"type":"step/end","seq":24,"time":0,"data":{"turn":1,"step":2}}
-{"type":"step/start","seq":25,"time":0,"data":{"turn":1,"step":3}}
-{"type":"assistant/chunk","seq":26,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":27,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"text-delta","index":0,"text":"GOAL READY"}}}
-{"type":"assistant/chunk","seq":28,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"GOAL READY"}}}}
-{"type":"assistant/chunk","seq":29,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":35,"outputTokens":2}}}}
-{"type":"assistant/chunk","seq":30,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":31,"time":0,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"GOAL READY"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":35,"outputTokens":2}},"sourceEventSeqs":[26,27,28,29,30],"surfaceOp":"append"}
-{"type":"step/end","seq":32,"time":0,"data":{"turn":1,"step":3}}
-{"type":"turn/end","seq":33,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}}
-{"type":"turn/start","seq":34,"time":0,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"goal","goalId":"goal-{{sessionId}}","revision":1,"round":1}}}}
-{"type":"user/message","seq":35,"time":0,"data":{"content":[{"type":"text","text":"<goal_round>\nObjective: \"Finish the ACP goal-session snapshot proof\"\nRound: 1/2\n\nContinue working toward the objective in this same session. Treat the current workspace, tool results, and durable session state as authoritative; inspect them instead of assuming earlier narration is still current. Make concrete progress and verify the result. Before claiming completion, gather evidence that the whole objective is achieved, read the current goal, and mark it complete. If work remains, leave the goal active for the next round. Follow the configured goal-tool policy before reporting a blocker.\n</goal_round>"}],"source":{"kind":"goal","goalId":"goal-{{sessionId}}","revision":1,"round":1},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"step/start","seq":36,"time":0,"data":{"turn":2,"step":1}}
-{"type":"assistant/chunk","seq":37,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":38,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":0,"text":"GOAL ROUND ONE"}}}
-{"type":"assistant/chunk","seq":39,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"GOAL ROUND ONE"}}}}
-{"type":"assistant/chunk","seq":40,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":40,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":41,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":42,"time":0,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"GOAL ROUND ONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":40,"outputTokens":3}},"sourceEventSeqs":[37,38,39,40,41],"surfaceOp":"append"}
-{"type":"step/end","seq":43,"time":0,"data":{"turn":2,"step":1}}
-{"type":"turn/end","seq":44,"time":0,"data":{"turn":2,"reason":{"kind":"completed"}}}
-{"type":"turn/start","seq":45,"time":0,"data":{"turn":3,"trigger":{"kind":"message","source":{"kind":"goal","goalId":"goal-{{sessionId}}","revision":1,"round":2}}}}
-{"type":"user/message","seq":46,"time":0,"data":{"content":[{"type":"text","text":"<goal_round>\nObjective: \"Finish the ACP goal-session snapshot proof\"\nRound: 2/2\n\nContinue working toward the objective in this same session. Treat the current workspace, tool results, and durable session state as authoritative; inspect them instead of assuming earlier narration is still current. Make concrete progress and verify the result. Before claiming completion, gather evidence that the whole objective is achieved, read the current goal, and mark it complete. If work remains, leave the goal active for the next round. Follow the configured goal-tool policy before reporting a blocker.\n</goal_round>"}],"source":{"kind":"goal","goalId":"goal-{{sessionId}}","revision":1,"round":2},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"step/start","seq":47,"time":0,"data":{"turn":3,"step":1}}
-{"type":"assistant/chunk","seq":48,"time":0,"data":{"turn":3,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
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diff --git a/examples/acp-agent/tests/goal-snapshots/goal-session/stdout.expected.jsonl b/examples/acp-agent/tests/goal-snapshots/goal-session/stdout.expected.jsonl
index 9a54cb88c8..6ba11fe9a3 100644
--- a/examples/acp-agent/tests/goal-snapshots/goal-session/stdout.expected.jsonl
+++ b/examples/acp-agent/tests/goal-snapshots/goal-session/stdout.expected.jsonl
@@ -2,4 +2,3 @@
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diff --git a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
index 7af9e3649a..126c3d745c 100644
--- a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
+++ b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
@@ -1,14 +1,16 @@
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diff --git a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
index 9b410dfd8a..f05b3f37c7 100644
--- a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
+++ b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
@@ -1,14 +1,16 @@
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diff --git a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.jsonl b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.jsonl
index 95b261ac0f..aa90dbc091 100644
--- a/examples/acp-agent/tests/snapshots/advanced-toolchain/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/advanced-toolchain/session.jsonl
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+{"type":"assistant/chunk","seq":60,"time":1783957884720,"data":{"turn":1,"step":6,"chunk":{"type":"text-delta","index":0,"text":"ADVANCED_ACP_OK"}}}
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diff --git a/examples/acp-agent/tests/snapshots/bash-spill/session.jsonl b/examples/acp-agent/tests/snapshots/bash-spill/session.jsonl
index f195449e9e..168b01a411 100644
--- a/examples/acp-agent/tests/snapshots/bash-spill/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/bash-spill/session.jsonl
@@ -1,24 +1,26 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
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diff --git a/examples/acp-agent/tests/snapshots/bash-tool-turn/session.jsonl b/examples/acp-agent/tests/snapshots/bash-tool-turn/session.jsonl
index c8146e20e6..783f3f6c7a 100644
--- a/examples/acp-agent/tests/snapshots/bash-tool-turn/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/bash-tool-turn/session.jsonl
@@ -1,31 +1,33 @@
 {"type":"session","version":0,"id":"e128dda9-ed11-4868-8266-0ef90d03c3d6","createdAt":1783352050748,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1783352050753,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
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diff --git a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl
index 77fd30a619..f6cc514c7b 100644
--- a/examples/acp-agent/tests/snapshots/both-mode-turn/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/cancel-tool-calls/session.jsonl b/examples/acp-agent/tests/snapshots/cancel-tool-calls/session.jsonl
index 464ca85bb3..9417474356 100644
--- a/examples/acp-agent/tests/snapshots/cancel-tool-calls/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/cancel-tool-calls/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/cancel/session.jsonl b/examples/acp-agent/tests/snapshots/cancel/session.jsonl
index 3551565373..bc1f11ad33 100644
--- a/examples/acp-agent/tests/snapshots/cancel/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/cancel/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl
index 5665f14e24..b559d13582 100644
--- a/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/code-mode-turn/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/code-mode-workspace-context/session.jsonl b/examples/acp-agent/tests/snapshots/code-mode-workspace-context/session.jsonl
index bb65cea98d..edb851b223 100644
--- a/examples/acp-agent/tests/snapshots/code-mode-workspace-context/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/code-mode-workspace-context/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl b/examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
index bb4798fe34..66edddc46d 100644
--- a/examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
@@ -1,34 +1,36 @@
 {"type":"session","version":0,"id":"22222222-2222-4222-8222-222222222222","createdAt":1783951000000,"cwd":"{{cwd}}","delegationDepth":0}
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-{"type":"session/title","seq":2,"time":1784449176718,"data":{"title":"Inspect the exact tools service","messageSeqs":[1],"source":{"kind":"fallback"}}}
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-{"type":"assistant/message","seq":10,"time":1784449176722,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"inspect-tools-api","name":"cordis_inspect","arguments":"{\"what\":\"api\",\"name\":\"tools\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"1ac37046-d1c0-4ef6-9ea9-963e4b46d1cf"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[5,6,7,8,9],"surfaceOp":"append"}
-{"type":"tool/call","seq":11,"time":1784449176722,"data":{"turn":1,"step":1,"callId":"inspect-tools-api","name":"cordis_inspect","arguments":"{\"what\":\"api\",\"name\":\"tools\"}"}}
-{"type":"tool/result","seq":12,"time":1784449176732,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"inspect-tools-api"},"content":[{"type":"tool-result","toolCallId":"inspect-tools-api","content":[{"type":"text","text":"## api\n- tools — Tool registry and execution pipeline.\n    /**\n     * Register globally or in the calling agent scope. Scoped tools shadow\n     * globals; duplicates within one layer and the reserved `run_code` name fail.\n     * @param definition - tool schema, execution, and optional finalization/presentation callbacks.\n     * @returns the exact disposer that unregisters the tool.\n     */\n    register(definition: ToolDefinition): () => void\n    /**\n     * Restrict global tools for the calling agent scope. Empty filters, unknown\n     * names, scope-local names, and reserved transport names fail. Restrictions\n     * intersect; scoped registrations remain visible.\n     * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove).\n     * @returns the exact disposer that lifts this restriction.\n     */\n    restrict(filter: ToolRestriction): () => void\n    /**\n     * Register a monotonic guard after the extensible `tools/pre-execute`\n     * waterfall. A plain-context guard applies globally; one registered through\n     * `agent.ctx` applies only to that agent. Any matching guard may deny by\n     * returning a reason, while no guard can force-allow a call another guard\n     * denied. The exact effect disposer is returned for ordered ownership and\n     * HMR cleanup.\n     * @param guard - synchronous check; a returned string denies the execution.\n     * @returns the exact disposer that unregisters the guard.\n     */\n    guard(guard: ToolGuard): () => void\n    /**\n     * Look up a tool as one scope sees it (scoped\n     * shadows global; a restricted-away global reads as absent). Presenters pass\n     * the calling agent so the rendered card matches the definition that\n     * actually executed.\n     * @param name - the tool name as registered.\n     * @param scope - the viewing scope (the agent); omitted = the global view.\n     * @returns the definition the scope resolves, or undefined when none is visible.\n     */\n    get(name: string, scope?: ScopeKey): ToolDefinition | undefined\n    /**\n     * Project visible definitions onto the allowlisted model-facing schema fields,\n     * excluding execution and presentation callbacks.\n     * @param scope - the viewing scope (the agent); omitted = the global view.\n     * @returns one deep-cloned schema per visible tool.\n     */\n    schemas(scope?: ScopeKey): ToolSchema[]\n    /**\n     * Classify a pending call through the caller's visible tool definition. Only\n     * an exact `true` is parallel; unknown, hidden, undeclared, invalid, or\n     * throwing classifiers are exclusive.\n     * @param exec - call name, parsed arguments, and optional agent scope.\n     * @returns the fail-closed scheduling mode.\n     */\n    executionMode(exec: ToolExecutionInput): ToolExecutionMode\n    /**\n     * Execute through pre-policy, guards, around-dispatch, post-policy,\n     * definition-owned content finalization, and final notification. Tool and\n     * listener failures resolve as materialized error results; an invisible tool\n     * reports `UNKNOWN_TOOL`. The returned outcome is the same lossless, frozen\n     * snapshot final observers receive. Cancellation\n     * arriving after entry and before final result materialization skips a\n     * not-yet-started body with `ABORTED_BEFORE_DISPATCH` or replaces a\n     * successful started outcome with `ABORTED`; already-started work is still\n     * drained and may retain a tool-owned structured error.\n     * @param exec - the typed same-process call input. The registry assigns its\n     *   correlation token before policy begins.\n     * @returns the materialized final result.\n     */\n    async execute(exec: ToolExecutionInput): Promise<ToolExecutionResult>\ntype shapes (referenced by the signatures above — read these before assuming a field is a string):\n    export interface Agent {\n        readonly id: SessionId;\n        readonly options: AgentOptions;\n        readonly session: Session;\n        readonly status: AgentStatus;\n        readonly acceptsNextStep: boolean;\n        readonly ctx: Context;\n        send(message: UserMessage, options: SendOptions): void;\n        updateInbox(id: InboxItemId, action: InboxAction): InboxActionResult;\n        cancel(cause: AgentCancelCause, options?: CancelOptions): void;\n        whenIdle(): Promise<void>;\n        followup(message: UserMessage): void;\n        steer(message: UserMessage): void;\n        inject(message: UserMessage): void;\n    }\n    export type AgentCancelCause = {\n        readonly kind: 'user';\n    } | {\n        readonly kind: 'parent';\n    };\n    export interface AgentOptions {\n        provider?: string;\n        model?: string;\n        maxTokens?: number;\n    }\n    export type AgentStatus = 'idle' | 'running';\n    export interface AssistantMessage extends Message {\n        readonly role: 'assistant';\n        readonly source: ModelMessageSource;\n    }\n    export interface AssistantProvenance {\n        provider: string;\n        model: string;\n        replayState?: unknown;\n    }\n    export type Branded<B extends string> = string & {\n        readonly [BRAND]: B;\n    };\n    export type CallId = Branded<'CallId'>;\n    export interface CancelOptions {\n        keepInbox?: boolean;\n    }\n    export interface ContentBlockMap {\n        'text': TextBlock;\n        'reasoning': ReasoningBlock;\n        'tool-call': ToolCallBlock;\n        'tool-result': ToolResultBlock;\n    }\n    export type ContentBlockType = keyof ContentBlockMap;\n    export interface DiffCallView {\n        card: 'diff';\n        title: string;\n        diffs: FileDiff[];\n        locations?: FileLocation[];\n    }\n    export interface DiffResultView {\n        card: 'diff';\n        title?: string;\n        diffs: FileDiff[];\n    }\n    export interface EpochHeader {\n        config: LlmCallConfig;\n        adapterDefaults?: LlmCallConfigAdapterDefaults;\n        system?: string;\n        tools?: ToolSchema[];\n    }\n    export interface FileDiff {\n        path: string;\n        oldText: string | null;\n        newText: string;\n    }\n    export interface FileLocation {\n        path: string;\n        line?: number;\n    }\n    export type FinishReason = FinishReasonMap[keyof FinishReasonMap];\n    export interface FinishReasonMap {\n        'stop': {\n            kind: 'stop';\n        };\n        'tool-calls': {\n            kind: 'tool-calls';\n        };\n        'max-tokens': {\n            kind: 'max-tokens';\n        };\n        'aborted': {\n            kind: 'aborted';\n            failure: LlmFailure;\n        };\n        'error': {\n            kind: 'error';\n            failure: LlmFailure;\n        };\n    }\n    export interface GenericCallView {\n        card: 'generic';\n        title: string;\n        kind?: ToolCallKind;\n        rawInput?: unknown;\n        content?: ContentBlock[];\n        locations?: FileLocation[];\n    }\n    export interface GenericResultView {\n        card: 'generic';\n        title?: string;\n        content?: ContentBlock[];\n    }\n    export type InboxAction = {\n        readonly kind: 'edit';\n        readonly content: ContentBlock[];\n    } | {\n        readonly kind: 'remove';\n    };\n    export type InboxActionResult = 'applied' | 'not-found';\n    export type InboxItemId = Branded<'InboxItemId'>;\n    export interface JsonSchemaNode {\n        type?: JsonSchemaType;\n        oneOf?: JsonSchemaNode[];\n        properties?: Record<string, JsonSchemaNode>;\n        required?: string[];\n        additionalProperties?: boolean;\n        items?: JsonSchemaNode;\n        enum?: JsonSchemaScalar[];\n        const?: JsonSchemaScalar;\n        description?: string;\n        title?: string;\n        default?: JsonValue;\n        examples?: JsonValue;\n    }\n    export type JsonSchemaScalar = string | number | boolean | null;\n    export type JsonSchemaType = 'object' | 'array' | 'string' | 'number' | 'integer' | 'boolean' | 'null';\n    export type JsonValue = null | boolean | number | string | JsonValue[] | {\n        [key: string]: JsonValue;\n    };\n    export interface LlmCallConfig {\n        provider: string;\n        model: string;\n        reasoningEffort?: ReasoningEffortId;\n        temperature?: number;\n        maxTokens?: number;\n        stop?: string[];\n    }\n    export interface LlmCallConfigAdapterDefaults {\n        reasoningEffort?: true;\n        maxTokens?: true;\n    }\n    export interface LlmFailure {\n        readonly message: string;\n        readonly code: string;\n        readonly status?: number;\n        readonly providerRetryAfterMs?: number;\n        readonly requestId?: ProviderRequestId;\n    }\n    export interface Message {\n        readonly id: MessageId;\n        readonly role: 'system' | 'user' | 'assistant';\n        readonly content: ContentBlock[];\n        readonly source: MessageSource;\n    }\n    export type MessageId = Branded<'MessageId'>;\n    export type MessageSource = MessageSourceMap[keyof MessageSourceMap];\n    export interface MessageSourceMap {\n        user: {\n            kind: 'user';\n        };\n        plugin: {\n            kind: 'plugin';\n            plugin: string;\n        };\n        model: ModelMessageSource;\n        tool: ToolMessageSource;\n    }\n    export interface ModelMessageSource extends AssistantProvenance {\n        kind: 'model';\n    }\n    export type ProviderRequestId = Branded<'ProviderRequestId'>;\n    export interface ReasoningBlock {\n        type: 'reasoning';\n        text: string;\n    }\n    export type ReasoningEffortId = Branded<'ReasoningEffortId'>;\n    export type RequestHeaderReason = 'initial' | 'resume' | 'change';\n    export type ScopeKey = object;\n    export interface SendOptions {\n        target: SendTarget;\n        wakeup: boolean;\n    }\n    export type SendTarget = 'next-turn' | 'next-step';\n    export class Session {\n        get surface(): SessionSurface;\n        readonly header: SessionHeader;\n        get id(): SessionId;\n        readonly firstLiveSeq: number;\n        constructor(id: SessionId, seed?: readonly SessionEvent[], header?: SessionHeader);\n        get events(): readonly SessionEvent[];\n        get seq(): number;\n        append<T extends SessionEventType>(type: T, data: SessionEventMap[T], ...opts: T extends SurfaceEventType ? [\n            opts: SurfaceIntent\n        ] : [\n        ]): SessionEvent<T>;\n        requestHeader(): EpochHeader | undefined;\n        deriveMessages(): Message[];\n        deriveEventMessage(event: SessionEvent): Message | null;\n    }\n    export type SessionEvent<T extends SessionEventType = SessionEventType> = {\n        [K in SessionEventType]: {\n            type: K;\n            seq: number;\n            time: number;\n            data: SessionEventMap[K];\n        } & (K extends SurfaceEventType ? {\n            sourceEventSeqs?: number[];\n            surfaceOp?: SurfaceOp;\n        } : object);\n    }[T];\n    export interface SessionEventMap {\n        'turn/start': {\n            turn: number;\n            trigger: TurnTrigger;\n        };\n        'turn/end': {\n            turn: number;\n            reason: TurnEndReason;\n        };\n        'step/start': {\n            turn: number;\n            step: number;\n        };\n        'step/end': {\n            turn: number;\n            step: number;\n        };\n        'user/message': UserMessage;\n        'assistant/chunk': {\n            turn: number;\n            step: number;\n            chunk: StreamChunk;\n        };\n        'assistant/message': {\n            turn: number;\n            step: number;\n            message: AssistantMessage;\n            usage?: TokenUsage;\n        };\n        'tool/call': {\n            turn: number;\n            step: number;\n            callId: CallId;\n            name: string;\n            arguments: string;\n        };\n        'tool/result': {\n            turn: number;\n            step: number;\n            message: ToolResultMessage;\n            error?: {\n                name: string;\n                code: string;\n            };\n            meta?: JsonValue;\n        };\n        'steering/message': {\n            turn: number;\n            message: UserMessage;\n        };\n        'todo/write': {\n            todos: TodoItem[];\n        };\n        'request/header': {\n            header: EpochHeader;\n            reason: RequestHeaderReason;\n        };\n        'session/end-seed': Record<string, never>;\n    }\n    export type SessionEventType = keyof SessionEventMap;\n    export interface SessionHeader {\n        readonly version: number;\n        readonly id: SessionId;\n        readonly createdAt: number;\n        readonly cwd?: string;\n        readonly parentSession?: SessionId;\n        readonly seedLength?: number;\n        readonly delegationDepth?: number;\n    }\n    export type SessionId = Branded<'SessionId'>;\n    export interface SessionSurface {\n        readonly nodes: readonly number[];\n        readonly replaceGeneration: number;\n    }\n    export type StreamChunk = {\n        type: 'block-start';\n        index: number;\n        blockType: ContentBlockType;\n    } | {\n        type: 'text-delta';\n        index: number;\n        text: string;\n    } | {\n        type: 'reasoning-delta';\n        index: number;\n        text: string;\n    } | {\n        type: 'tool-call-delta';\n        index: number;\n        id: CallId;\n        name?: string;\n        argumentsDelta: string;\n    } | {\n        type: 'block-end';\n        index: number;\n        block: ContentBlock;\n    } | {\n        type: 'usage';\n        usage: TokenUsage;\n    } | {\n        type: 'finish';\n        reason: FinishReason;\n        replayState?: unknown;\n    };\n    export type SurfaceEventType = 'user/message' | 'assistant/message' | 'tool/result' | 'steering/message';\n    export interface SurfaceIntent {\n        surfaceOp: SurfaceOp;\n        sourceEventSeqs?: number[];\n    }\n    export type SurfaceOp = 'append' | {\n        op: 'replace';\n        start: number;\n        end: number;\n    };\n    export interface TerminalCallView {\n        card: 'terminal';\n        title: string;\n        description?: string;\n        cwd?: string;\n    }\n    export interface TerminalResultView {\n        card: 'terminal';\n        title?: string;\n        output?: string;\n        exitCode?: number;\n        signal?: string;\n    }\n    export interface TodoItem {\n        content: string;\n        status: 'pending' | 'in_progress' | 'completed';\n    }\n    export interface TokenUsage {\n        inputTokens: number;\n        outputTokens: number;\n        cacheReadTokens?: number;\n        cacheWriteTokens?: number;\n        reasoningTokens?: number;\n    }\n    export interface ToolCallBlock {\n        type: 'tool-call';\n        id: CallId;\n        name: string;\n        arguments: string;\n    }\n    export type ToolCallKind = 'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other';\n    export type ToolCallView = GenericCallView | TerminalCallView | DiffCallView;\n    export interface ToolDefinition extends ToolSchema {\n        readonly output: ToolOutputDefinition;\n        execute(args: unknown, exec: ToolRunContext): Promise<unknown>;\n        finalizeContent?(exec: Readonly<ToolExecution>, result: Readonly<ToolExecutionResult>): ContentBlock[] | undefined;\n        timeoutMs?: number;\n        isConcurrencySafe?(args: unknown): boolean;\n        presentCall?(args: unknown): ToolCallView | undefined;\n        presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n    }\n    export interface ToolErrorInfo {\n        name: string;\n        code: string;\n    }\n    export interface ToolExecution extends ToolExecutionInput {\n        readonly token: ToolExecutionToken;\n    }\n    export interface ToolExecutionFailure {\n        readonly isError: true;\n        readonly error: ToolFailure;\n        readonly value?: never;\n        readonly content: ContentBlock[];\n        readonly meta?: JsonValue;\n        readonly additionalContexts?: UserMessage[];\n        readonly concludesTurn?: never;\n    }\n    export interface ToolExecutionInput {\n        readonly callId: CallId;\n        readonly name: string;\n        readonly arguments: unknown;\n        readonly agent?: Agent;\n        readonly parent?: ToolExecutionToken;\n        readonly signal: AbortSignal;\n    }\n    export type ToolExecutionMode = {\n        kind: 'parallel';\n    } | {\n        kind: 'exclusive';\n    };\n    export type ToolExecutionResult = ToolExecutionSuccess | ToolExecutionFailure;\n    export interface ToolExecutionSuccess {\n        readonly isError: false;\n        readonly value: JsonValue;\n        readonly content: ContentBlock[];\n        readonly error?: never;\n        readonly meta?: JsonValue;\n        readonly additionalContexts?: UserMessage[];\n        readonly concludesTurn?: true;\n    }\n    export type ToolExecutionToken = symbol & {\n        readonly [toolExecutionTokenBrand]: true;\n    };\n    export interface ToolFailure {\n        message: string;\n        info?: ToolErrorInfo;\n    }\n    export type ToolGuard = (execution: Readonly<ToolExecution>) => string | undefined;\n    export interface ToolMessageSource {\n        kind: 'tool';\n        callId: CallId;\n    }\n    export interface ToolOutputDefinition {\n        readonly schema: JsonSchemaNode;\n        render(args: unknown, value: JsonValue): ContentBlock[];\n        presentationMeta?(args: unknown, value: JsonValue): JsonValue;\n    }\n    export interface ToolRestriction {\n        readonly allow?: readonly string[];\n        readonly deny?: readonly string[];\n    }\n    export interface ToolResult {\n        content: ContentBlock[];\n        isError: boolean;\n        meta?: JsonValue;\n    }\n    export interface ToolResultBlock {\n        type: 'tool-result';\n        toolCallId: CallId;\n        content: ContentBlock[];\n        isError?: boolean;\n    }\n    export interface ToolResultMessage extends Message {\n        readonly role: 'user';\n        readonly content: [\n            ToolResultBlock\n        ];\n        readonly source: ToolMessageSource;\n    }\n    export type ToolResultView = GenericResultView | TerminalResultView | DiffResultView | WebResultView;\n    export interface ToolRunContext extends ToolExecution {\n        deferContext(context: UserMessage): void;\n        concludeTurn(): void;\n    }\n    export interface ToolSchema {\n        name: string;\n        description: string;\n        parameters: Record<string, unknown>;\n    }\n    export type TurnEndReason = TurnEndReasonMap[keyof TurnEndReasonMap];\n    export interface TurnEndReasonMap {\n        completed: {\n            kind: 'completed';\n        };\n        aborted: {\n            kind: 'aborted';\n        };\n        error: {\n            kind: 'error';\n            step: number;\n        } & ({\n            failure: LlmFailure;\n            message?: never;\n            code?: never;\n        } | {\n            message: string;\n            code?: string;\n            failure?: never;\n        });\n        disposed: {\n            kind: 'disposed';\n        };\n        'max-tokens': {\n            kind: 'max-tokens';\n        };\n        interrupted: {\n            kind: 'interrupted';\n        };\n    }\n    export type TurnTrigger = TurnTriggerMap[keyof TurnTriggerMap];\n    export interface TurnTriggerMap {\n        message: {\n            kind: 'message';\n            source: MessageSource;\n        };\n        retry: {\n            kind: 'retry';\n        };\n        injection: {\n            kind: 'injection';\n            source: MessageSource;\n        };\n    }\n    export interface UserMessage extends Message {\n        readonly role: 'user';\n    }\n    export interface WebFetchResultView {\n        card: 'web';\n        kind: 'fetch';\n        title?: string;\n        url: string;\n        statusCode: number;\n        truncated: boolean;\n    }\n    export type WebResultView = WebSearchResultView | WebFetchResultView;\n    export interface WebSearchResultView {\n        card: 'web';\n        kind: 'search';\n        title?: string;\n        sources: WebSource[];\n        answer?: string;\n        truncated: boolean;\n    }\n    export interface WebSource {\n        url: string;\n        title?: string;\n        snippet?: string;\n        publishedAt?: string;\n    }"}],"isError":false}],"role":"user","id":"1c43b8df-aae8-42e7-8253-5b275edc09bc"}},"sourceEventSeqs":[11],"surfaceOp":"append"}
-{"type":"step/end","seq":13,"time":1784449176732,"data":{"turn":1,"step":1}}
-{"type":"step/start","seq":14,"time":1784449176733,"data":{"turn":1,"step":2}}
-{"type":"assistant/chunk","seq":15,"time":1783951000015,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
-{"type":"assistant/chunk","seq":16,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"inspect-tools-event","name":"cordis_inspect","argumentsDelta":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}}
-{"type":"assistant/chunk","seq":17,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}}}
-{"type":"assistant/chunk","seq":18,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":19,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
-{"type":"assistant/message","seq":20,"time":1784449176734,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"ac4f1e8d-a168-4f18-89a5-b339ae370eb9"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[15,16,17,18,19],"surfaceOp":"append"}
-{"type":"tool/call","seq":21,"time":1784449176734,"data":{"turn":1,"step":2,"callId":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}
-{"type":"tool/result","seq":22,"time":1784449176734,"data":{"turn":1,"step":2,"message":{"source":{"kind":"tool","callId":"inspect-tools-event"},"content":[{"type":"tool-result","toolCallId":"inspect-tools-event","content":[{"type":"text","text":"## events\n- tools/pre-execute [waterfall] — Allow, deny, or ask before dispatch.\n    /**\n     * Allow, deny, or ask before dispatch. `next()` delegates to allow; missing\n     * approval support turns `ask` into denial. Async gates must observe\n     * `exec.signal`; the registry rechecks cancellation after they settle but\n     * never abandons their promise.\n     * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent's calls.\n     * @param exec - the pending call (name, parsed arguments, caller agent).\n     * @mode waterfall\n     */\n    'tools/pre-execute'(this: Scoped<ToolRegistry>, exec: ToolExecution, next: () => Promise<PreToolDecision>): Promise<PreToolDecision>\nwaterfall listeners receive a trailing next() and MUST call it to delegate — returning without next() vetoes the chain."}],"isError":false}],"role":"user","id":"ddafa6d8-dbed-4208-8503-8efeea920bb5"}},"sourceEventSeqs":[21],"surfaceOp":"append"}
-{"type":"step/end","seq":23,"time":1784449176734,"data":{"turn":1,"step":2}}
-{"type":"step/start","seq":24,"time":1784449176735,"data":{"turn":1,"step":3}}
-{"type":"assistant/chunk","seq":25,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":26,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"text-delta","index":0,"text":"CORDIS_INSPECT_JSDOC_OK"}}}
-{"type":"assistant/chunk","seq":27,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"CORDIS_INSPECT_JSDOC_OK"}}}}
-{"type":"assistant/chunk","seq":28,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":29,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":30,"time":1784449176735,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"CORDIS_INSPECT_JSDOC_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"e47e2ca6-b138-408a-b75b-6273b1552406"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[25,26,27,28,29],"surfaceOp":"append"}
-{"type":"step/end","seq":31,"time":1784449176735,"data":{"turn":1,"step":3}}
-{"type":"turn/end","seq":32,"time":1784449176735,"data":{"turn":1,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":4,"time":1785498803419,"data":{"content":[{"type":"text","text":"Inspect the exact tools service API and tools/pre-execute event with cordis_inspect, then reply with exactly CORDIS_INSPECT_JSDOC_OK."}],"source":{"kind":"user"},"role":"user","id":"3da12d11-13e5-4f20-8412-4b0cf5361b33"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498803419,"data":{"title":"Inspect the exact tools service","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498803423,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1783951000006,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":8,"time":1783951000007,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"inspect-tools-api","name":"cordis_inspect","argumentsDelta":"{\"what\":\"api\",\"name\":\"tools\"}"}}}
+{"type":"assistant/chunk","seq":9,"time":1783951000008,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"inspect-tools-api","name":"cordis_inspect","arguments":"{\"what\":\"api\",\"name\":\"tools\"}"}}}}
+{"type":"assistant/chunk","seq":10,"time":1783951000009,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":11,"time":1785498803432,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":12,"time":1785498803432,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"inspect-tools-api","name":"cordis_inspect","arguments":"{\"what\":\"api\",\"name\":\"tools\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"3b0eb848-9a88-4ac6-baae-4230b029f207"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[7,8,9,10,11],"surfaceOp":"append"}
+{"type":"tool/call","seq":13,"time":1785498803433,"data":{"turn":1,"step":1,"callId":"inspect-tools-api","name":"cordis_inspect","arguments":"{\"what\":\"api\",\"name\":\"tools\"}"}}
+{"type":"tool/result","seq":14,"time":1785498803454,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"inspect-tools-api"},"content":[{"type":"tool-result","toolCallId":"inspect-tools-api","content":[{"type":"text","text":"## api\n- tools — Tool registry and execution pipeline.\n    /**\n     * Register globally or in the calling agent scope. Scoped tools shadow\n     * globals; duplicates within one layer and the reserved `run_code` name fail.\n     * @param definition - tool schema, execution, and optional finalization/presentation callbacks.\n     * @returns the exact disposer that unregisters the tool.\n     */\n    register(definition: ToolDefinition): () => void\n    /**\n     * Restrict global tools for the calling agent scope. Empty filters, unknown\n     * names, scope-local names, and reserved transport names fail. Restrictions\n     * intersect; scoped registrations remain visible.\n     * @param filter - global-surface mask: `allow` (keep only) and/or `deny` (remove).\n     * @returns the exact disposer that lifts this restriction.\n     */\n    restrict(filter: ToolRestriction): () => void\n    /**\n     * Register a monotonic guard after the extensible `tools/pre-execute`\n     * waterfall. A plain-context guard applies globally; one registered through\n     * `agent.ctx` applies only to that agent. Any matching guard may deny by\n     * returning a reason, while no guard can force-allow a call another guard\n     * denied. The exact effect disposer is returned for ordered ownership and\n     * HMR cleanup.\n     * @param guard - synchronous check; a returned string denies the execution.\n     * @returns the exact disposer that unregisters the guard.\n     */\n    guard(guard: ToolGuard): () => void\n    /**\n     * Look up a tool as one scope sees it (scoped\n     * shadows global; a restricted-away global reads as absent). Presenters pass\n     * the calling agent so the rendered card matches the definition that\n     * actually executed.\n     * @param name - the tool name as registered.\n     * @param scope - the viewing scope (the agent); omitted = the global view.\n     * @returns the definition the scope resolves, or undefined when none is visible.\n     */\n    get(name: string, scope?: ScopeKey): ToolDefinition | undefined\n    /**\n     * Project visible definitions onto the allowlisted model-facing schema fields,\n     * excluding execution and presentation callbacks.\n     * @param scope - the viewing scope (the agent); omitted = the global view.\n     * @returns one deep-cloned schema per visible tool.\n     */\n    schemas(scope?: ScopeKey): ToolSchema[]\n    /**\n     * Classify a pending call through the caller's visible tool definition. Only\n     * an exact `true` is parallel; unknown, hidden, undeclared, invalid, or\n     * throwing classifiers are exclusive.\n     * @param exec - call name, parsed arguments, and optional agent scope.\n     * @returns the fail-closed scheduling mode.\n     */\n    executionMode(exec: ToolExecutionInput): ToolExecutionMode\n    /**\n     * Execute through pre-policy, guards, around-dispatch, post-policy,\n     * definition-owned content finalization, and final notification. Tool and\n     * listener failures resolve as materialized error results; an invisible tool\n     * reports `UNKNOWN_TOOL`. The returned outcome is the same lossless, frozen\n     * snapshot final observers receive. Cancellation\n     * arriving after entry and before final result materialization skips a\n     * not-yet-started body with `ABORTED_BEFORE_DISPATCH` or replaces a\n     * successful started outcome with `ABORTED`; already-started work is still\n     * drained and may retain a tool-owned structured error.\n     * @param exec - the typed same-process call input. The registry assigns its\n     *   correlation token before policy begins.\n     * @returns the materialized final result.\n     */\n    async execute(exec: ToolExecutionInput): Promise<ToolExecutionResult>\ntype shapes (referenced by the signatures above — read these before assuming a field is a string):\n    export interface Agent {\n        readonly id: SessionId;\n        readonly options: AgentOptions;\n        readonly session: Session;\n        readonly inbox: Inbox;\n        readonly status: AgentStatus;\n        readonly ctx: Context;\n        cancel(cause: AgentCancelCause, options?: CancelOptions): void;\n        whenIdle(): Promise<void>;\n        send(message: UserMessage, target: InboxTarget, wakeup: boolean): void;\n        followup(message: UserMessage): void;\n        steer(message: UserMessage): void;\n        inject(message: UserMessage): void;\n    }\n    export type AgentCancelCause = {\n        readonly kind: 'user';\n    } | {\n        readonly kind: 'parent';\n    } | {\n        readonly kind: 'hook';\n        readonly reason: string;\n    } | {\n        readonly kind: 'disposed';\n    };\n    export interface AgentOptions {\n        provider?: string;\n        model?: string;\n        maxTokens?: number;\n    }\n    export type AgentStatus = 'idle' | 'running';\n    export interface AssistantMessage extends Message {\n        readonly role: 'assistant';\n        readonly source: ModelMessageSource;\n    }\n    export interface AssistantProvenance {\n        provider: string;\n        model: string;\n        replayState?: unknown;\n    }\n    export type Branded<B extends string> = string & {\n        readonly [BRAND]: B;\n    };\n    export type CallId = Branded<'CallId'>;\n    export interface CancelOptions {\n        keepInbox?: boolean | undefined;\n    }\n    export interface ContentBlockMap {\n        'text': TextBlock;\n        'reasoning': ReasoningBlock;\n        'tool-call': ToolCallBlock;\n        'tool-result': ToolResultBlock;\n    }\n    export type ContentBlockType = keyof ContentBlockMap;\n    export interface DiffCallView {\n        card: 'diff';\n        title: string;\n        diffs: FileDiff[];\n        locations?: FileLocation[];\n    }\n    export interface DiffResultView {\n        card: 'diff';\n        title?: string;\n        diffs: FileDiff[];\n    }\n    export interface EpochHeader {\n        config: LlmCallConfig;\n        adapterDefaults?: LlmCallConfigAdapterDefaults;\n        system?: string;\n        tools?: ToolSchema[];\n    }\n    export interface FileDiff {\n        path: string;\n        oldText: string | null;\n        newText: string;\n    }\n    export interface FileLocation {\n        path: string;\n        line?: number;\n    }\n    export type FinishReason = FinishReasonMap[keyof FinishReasonMap];\n    export interface FinishReasonMap {\n        'stop': {\n            kind: 'stop';\n        };\n        'tool-calls': {\n            kind: 'tool-calls';\n        };\n        'max-tokens': {\n            kind: 'max-tokens';\n        };\n        'aborted': {\n            kind: 'aborted';\n            failure: LlmFailure;\n        };\n        'error': {\n            kind: 'error';\n            failure: LlmFailure;\n        };\n    }\n    export interface GenericCallView {\n        card: 'generic';\n        title: string;\n        kind?: ToolCallKind;\n        rawInput?: unknown;\n        content?: ContentBlock[];\n        locations?: FileLocation[];\n    }\n    export interface GenericResultView {\n        card: 'generic';\n        title?: string;\n        content?: ContentBlock[];\n    }\n    export class Inbox {\n        constructor(private readonly session: Session, private readonly notifications: InboxNotifications);\n        get nextTurn(): readonly UserMessage[];\n        get nextStep(): readonly UserMessage[];\n        get hasPending(): boolean;\n        clear(): void;\n        claim(target: InboxTarget): UserMessage[];\n        append(target: InboxTarget, message: UserMessage): void;\n        prepend(target: InboxTarget, message: UserMessage): void;\n        update(target: InboxTarget, messageId: MessageId, newMessage: UserMessage): boolean;\n        remove(target: InboxTarget, messageId: MessageId): boolean;\n        splice(target: InboxTarget, start: number, deleteCount: number, inserted: UserMessage[]): UserMessage[];\n    }\n    export interface InboxNotifications {\n        inserted(message: UserMessage): void;\n        discarded(message: UserMessage): void;\n    }\n    export type InboxTarget = 'next-turn' | 'next-step';\n    export interface JsonSchemaNode {\n        type?: JsonSchemaType;\n        oneOf?: JsonSchemaNode[];\n        properties?: Record<string, JsonSchemaNode>;\n        required?: string[];\n        additionalProperties?: boolean;\n        items?: JsonSchemaNode;\n        enum?: JsonSchemaScalar[];\n        const?: JsonSchemaScalar;\n        description?: string;\n        title?: string;\n        default?: JsonValue;\n        examples?: JsonValue;\n    }\n    export type JsonSchemaScalar = string | number | boolean | null;\n    export type JsonSchemaType = 'object' | 'array' | 'string' | 'number' | 'integer' | 'boolean' | 'null';\n    export type JsonValue = null | boolean | number | string | JsonValue[] | {\n        [key: string]: JsonValue;\n    };\n    export interface LlmCallConfig {\n        provider: string;\n        model: string;\n        reasoningEffort?: ReasoningEffortId;\n        temperature?: number;\n        maxTokens?: number;\n        stop?: string[];\n    }\n    export interface LlmCallConfigAdapterDefaults {\n        reasoningEffort?: true;\n        maxTokens?: true;\n    }\n    export interface LlmFailure {\n        readonly message: string;\n        readonly code: string;\n        readonly status?: number;\n        readonly providerRetryAfterMs?: number;\n        readonly requestId?: ProviderRequestId;\n    }\n    export interface Message {\n        readonly id: MessageId;\n        readonly role: 'system' | 'user' | 'assistant';\n        readonly content: ContentBlock[];\n        readonly source: MessageSource;\n    }\n    export type MessageId = Branded<'MessageId'>;\n    export type MessageSource = MessageSourceMap[keyof MessageSourceMap];\n    export interface MessageSourceMap {\n        user: {\n            kind: 'user';\n        };\n        plugin: {\n            kind: 'plugin';\n            plugin: string;\n        };\n        model: ModelMessageSource;\n        tool: ToolMessageSource;\n    }\n    export interface ModelMessageSource extends AssistantProvenance {\n        kind: 'model';\n    }\n    export type ProviderRequestId = Branded<'ProviderRequestId'>;\n    export interface ReasoningBlock {\n        type: 'reasoning';\n        text: string;\n    }\n    export type ReasoningEffortId = Branded<'ReasoningEffortId'>;\n    export type RequestHeaderReason = 'initial' | 'resume' | 'change';\n    export type ScopeKey = object;\n    export class Session {\n        get surface(): SessionSurface;\n        readonly header: SessionHeader;\n        get id(): SessionId;\n        readonly firstLiveSeq: number;\n        constructor(id: SessionId, seed?: readonly SessionEvent[], header?: SessionHeader);\n        get events(): readonly SessionEvent[];\n        get seq(): number;\n        append<T extends SessionEventType>(type: T, data: SessionEventMap[T], ...opts: T extends SurfaceEventType ? [\n            opts: SurfaceIntent\n        ] : [\n        ]): SessionEvent<T>;\n        requestHeader(): EpochHeader | undefined;\n        deriveMessages(): Message[];\n        deriveEventMessage(event: SessionEvent): Message | null;\n    }\n    export type SessionEvent<T extends SessionEventType = SessionEventType> = {\n        [K in SessionEventType]: {\n            type: K;\n            seq: number;\n            time: number;\n            data: SessionEventMap[K];\n        } & (K extends SurfaceEventType ? {\n            sourceEventSeqs?: number[];\n            surfaceOp?: SurfaceOp;\n        } : object);\n    }[T];\n    export interface SessionEventMap {\n        'turn/start': {\n            turn: number;\n        };\n        'turn/end': {\n            turn: number;\n            reason: TurnEndReason;\n        };\n        'step/start': {\n            turn: number;\n            step: number;\n        };\n        'step/end': {\n            turn: number;\n            step: number;\n        };\n        'user/message': UserMessage;\n        'assistant/chunk': {\n            turn: number;\n            step: number;\n            chunk: StreamChunk;\n        };\n        'assistant/message': {\n            turn: number;\n            step: number;\n            message: AssistantMessage;\n            usage?: TokenUsage;\n        };\n        'tool/call': {\n            turn: number;\n            step: number;\n            callId: CallId;\n            name: string;\n            arguments: string;\n        };\n        'tool/result': {\n            turn: number;\n            step: number;\n            message: ToolResultMessage;\n            error?: {\n                name: string;\n                code: string;\n            };\n            meta?: JsonValue;\n        };\n        'steering/message': {\n            turn: number;\n            message: UserMessage;\n        };\n        'todo/write': {\n            todos: TodoItem[];\n        };\n        'request/header': {\n            header: EpochHeader;\n            reason: RequestHeaderReason;\n        };\n        'session/end-seed': Record<string, never>;\n    }\n    export type SessionEventType = keyof SessionEventMap;\n    export interface SessionHeader {\n        readonly version: number;\n        readonly id: SessionId;\n        readonly createdAt: number;\n        readonly cwd?: string;\n        readonly parentSession?: SessionId;\n        readonly seedLength?: number;\n        readonly delegationDepth?: number;\n    }\n    export type SessionId = Branded<'SessionId'>;\n    export interface SessionSurface {\n        readonly nodes: readonly number[];\n        readonly replaceGeneration: number;\n    }\n    export type StreamChunk = {\n        type: 'block-start';\n        index: number;\n        blockType: ContentBlockType;\n    } | {\n        type: 'text-delta';\n        index: number;\n        text: string;\n    } | {\n        type: 'reasoning-delta';\n        index: number;\n        text: string;\n    } | {\n        type: 'tool-call-delta';\n        index: number;\n        id: CallId;\n        name?: string;\n        argumentsDelta: string;\n    } | {\n        type: 'block-end';\n        index: number;\n        block: ContentBlock;\n    } | {\n        type: 'usage';\n        usage: TokenUsage;\n    } | {\n        type: 'finish';\n        reason: FinishReason;\n        replayState?: unknown;\n    };\n    export type SurfaceEventType = 'user/message' | 'assistant/message' | 'tool/result' | 'steering/message';\n    export interface SurfaceIntent {\n        surfaceOp: SurfaceOp;\n        sourceEventSeqs?: number[];\n    }\n    export type SurfaceOp = 'append' | {\n        op: 'replace';\n        start: number;\n        end: number;\n    };\n    export interface TerminalCallView {\n        card: 'terminal';\n        title: string;\n        description?: string;\n        cwd?: string;\n    }\n    export interface TerminalResultView {\n        card: 'terminal';\n        title?: string;\n        output?: string;\n        exitCode?: number;\n        signal?: string;\n    }\n    export interface TodoItem {\n        content: string;\n        status: 'pending' | 'in_progress' | 'completed';\n    }\n    export interface TokenUsage {\n        inputTokens: number;\n        outputTokens: number;\n        cacheReadTokens?: number;\n        cacheWriteTokens?: number;\n        reasoningTokens?: number;\n    }\n    export interface ToolCallBlock {\n        type: 'tool-call';\n        id: CallId;\n        name: string;\n        arguments: string;\n    }\n    export type ToolCallKind = 'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other';\n    export type ToolCallView = GenericCallView | TerminalCallView | DiffCallView;\n    export interface ToolDefinition extends ToolSchema {\n        readonly output: ToolOutputDefinition;\n        execute(args: unknown, exec: ToolRunContext): Promise<unknown>;\n        finalizeContent?(exec: Readonly<ToolExecution>, result: Readonly<ToolExecutionResult>): ContentBlock[] | undefined;\n        timeoutMs?: number;\n        isConcurrencySafe?(args: unknown): boolean;\n        presentCall?(args: unknown): ToolCallView | undefined;\n        presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined;\n    }\n    export interface ToolErrorInfo {\n        name: string;\n        code: string;\n    }\n    export interface ToolExecution extends ToolExecutionInput {\n        readonly token: ToolExecutionToken;\n    }\n    export interface ToolExecutionFailure {\n        readonly isError: true;\n        readonly error: ToolFailure;\n        readonly value?: never;\n        readonly content: ContentBlock[];\n        readonly meta?: JsonValue;\n        readonly additionalContexts?: UserMessage[];\n        readonly concludesTurn?: never;\n    }\n    export interface ToolExecutionInput {\n        readonly callId: CallId;\n        readonly name: string;\n        readonly arguments: unknown;\n        readonly agent?: Agent;\n        readonly parent?: ToolExecutionToken;\n        readonly signal: AbortSignal;\n    }\n    export type ToolExecutionMode = {\n        kind: 'parallel';\n    } | {\n        kind: 'exclusive';\n    };\n    export type ToolExecutionResult = ToolExecutionSuccess | ToolExecutionFailure;\n    export interface ToolExecutionSuccess {\n        readonly isError: false;\n        readonly value: JsonValue;\n        readonly content: ContentBlock[];\n        readonly error?: never;\n        readonly meta?: JsonValue;\n        readonly additionalContexts?: UserMessage[];\n        readonly concludesTurn?: true;\n    }\n    export type ToolExecutionToken = symbol & {\n        readonly [toolExecutionTokenBrand]: true;\n    };\n    export interface ToolFailure {\n        message: string;\n        info?: ToolErrorInfo;\n    }\n    export type ToolGuard = (execution: Readonly<ToolExecution>) => string | undefined;\n    export interface ToolMessageSource {\n        kind: 'tool';\n        callId: CallId;\n    }\n    export interface ToolOutputDefinition {\n        readonly schema: JsonSchemaNode;\n        render(args: unknown, value: JsonValue): ContentBlock[];\n        presentationMeta?(args: unknown, value: JsonValue): JsonValue;\n    }\n    export interface ToolRestriction {\n        readonly allow?: readonly string[];\n        readonly deny?: readonly string[];\n    }\n    export interface ToolResult {\n        content: ContentBlock[];\n        isError: boolean;\n        meta?: JsonValue;\n    }\n    export interface ToolResultBlock {\n        type: 'tool-result';\n        toolCallId: CallId;\n        content: ContentBlock[];\n        isError?: boolean;\n    }\n    export interface ToolResultMessage extends Message {\n        readonly role: 'user';\n        readonly content: [\n            ToolResultBlock\n        ];\n        readonly source: ToolMessageSource;\n    }\n    export type ToolResultView = GenericResultView | TerminalResultView | DiffResultView | WebResultView;\n    export interface ToolRunContext extends ToolExecution {\n        deferContext(context: UserMessage): void;\n        concludeTurn(): void;\n    }\n    export interface ToolSchema {\n        name: string;\n        description: string;\n        parameters: Record<string, unknown>;\n    }\n    export type TurnEndReason = TurnEndReasonMap[keyof TurnEndReasonMap];\n    export interface TurnEndReasonMap {\n        completed: {\n            kind: 'completed';\n        };\n        aborted: {\n            kind: 'aborted';\n            reason: AgentCancelCause;\n        };\n        blocked: {\n            kind: 'blocked';\n        };\n        error: {\n            kind: 'error';\n            error: unknown;\n        };\n        'max-tokens': {\n            kind: 'max-tokens';\n        };\n        interrupted: {\n            kind: 'interrupted';\n        };\n    }\n    export interface UserMessage extends Message {\n        readonly role: 'user';\n    }\n    export interface WebFetchResultView {\n        card: 'web';\n        kind: 'fetch';\n        title?: string;\n        url: string;\n        statusCode: number;\n        truncated: boolean;\n    }\n    export type WebResultView = WebSearchResultView | WebFetchResultView;\n    export interface WebSearchResultView {\n        card: 'web';\n        kind: 'search';\n        title?: string;\n        sources: WebSource[];\n        answer?: string;\n        truncated: boolean;\n    }\n    export interface WebSource {\n        url: string;\n        title?: string;\n        snippet?: string;\n        publishedAt?: string;\n    }"}],"isError":false}],"role":"user","id":"acbd7544-4a7a-48fb-a790-b5c22ceafcec"}},"sourceEventSeqs":[13],"surfaceOp":"append"}
+{"type":"step/end","seq":15,"time":1785498803455,"data":{"turn":1,"step":1}}
+{"type":"step/start","seq":16,"time":1785498803464,"data":{"turn":1,"step":2}}
+{"type":"assistant/chunk","seq":17,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":18,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"inspect-tools-event","name":"cordis_inspect","argumentsDelta":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}}
+{"type":"assistant/chunk","seq":19,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}}}
+{"type":"assistant/chunk","seq":20,"time":1784449176734,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":21,"time":1785498803470,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":22,"time":1785498803470,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"66ac64c6-5f19-4e14-b2d2-d7265a112b1e"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[17,18,19,20,21],"surfaceOp":"append"}
+{"type":"tool/call","seq":23,"time":1785498803470,"data":{"turn":1,"step":2,"callId":"inspect-tools-event","name":"cordis_inspect","arguments":"{\"what\":\"events\",\"name\":\"tools/pre-execute\"}"}}
+{"type":"tool/result","seq":24,"time":1785498803478,"data":{"turn":1,"step":2,"message":{"source":{"kind":"tool","callId":"inspect-tools-event"},"content":[{"type":"tool-result","toolCallId":"inspect-tools-event","content":[{"type":"text","text":"## events\n- tools/pre-execute [waterfall] — Allow, deny, or ask before dispatch.\n    /**\n     * Allow, deny, or ask before dispatch. `next()` delegates to allow; missing\n     * approval support turns `ask` into denial. Async gates must observe\n     * `exec.signal`; the registry rechecks cancellation after they settle but\n     * never abandons their promise.\n     * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent's calls.\n     * @param exec - the pending call (name, parsed arguments, caller agent).\n     * @mode waterfall\n     */\n    'tools/pre-execute'(this: Scoped<ToolRegistry>, exec: ToolExecution, next: () => Promise<PreToolDecision>): Promise<PreToolDecision>\nwaterfall listeners receive a trailing next() and MUST call it to delegate — returning without next() vetoes the chain."}],"isError":false}],"role":"user","id":"8664a428-6ac9-4f92-918e-df016de75d5d"}},"sourceEventSeqs":[23],"surfaceOp":"append"}
+{"type":"step/end","seq":25,"time":1785498803478,"data":{"turn":1,"step":2}}
+{"type":"step/start","seq":26,"time":1785498803485,"data":{"turn":1,"step":3}}
+{"type":"assistant/chunk","seq":27,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":28,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"text-delta","index":0,"text":"CORDIS_INSPECT_JSDOC_OK"}}}
+{"type":"assistant/chunk","seq":29,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"CORDIS_INSPECT_JSDOC_OK"}}}}
+{"type":"assistant/chunk","seq":30,"time":1784449176735,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":31,"time":1785498803491,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":32,"time":1785498803491,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"CORDIS_INSPECT_JSDOC_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"4942fb8d-65bc-4c2b-81f0-33ad10488c77"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[27,28,29,30,31],"surfaceOp":"append"}
+{"type":"step/end","seq":33,"time":1785498803491,"data":{"turn":1,"step":3}}
+{"type":"turn/end","seq":34,"time":1785498803491,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/acp-agent/tests/snapshots/empty-response-retry/session.jsonl b/examples/acp-agent/tests/snapshots/empty-response-retry/session.jsonl
index 32aaf72b75..ac4c2d7956 100644
--- a/examples/acp-agent/tests/snapshots/empty-response-retry/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/empty-response-retry/session.jsonl
@@ -1,21 +1,19 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt first receives an empty completion, then a retried reply."}],"source":{"kind":"user"},"role":"user","id":"c9828d19-2c86-4a4f-9868-c9c28f345358"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":0,"data":{"title":"This prompt first receives an","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498788069,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"This prompt first receives an empty completion, then a retried reply."}],"source":{"kind":"user"},"role":"user","id":"f250a29e-876d-426d-b1df-0a7a7c021aea"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498788070,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498788095,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":0,"outputTokens":0}}}}
-{"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"error","failure":{"message":"model returned a completed response with no content","code":"EMPTY_RESPONSE"}}}}}
-{"type":"step/end","seq":7,"time":0,"data":{"turn":1,"step":1}}
-{"type":"llm/retry","seq":8,"time":0,"data":{"turn":1,"step":1,"provider":"deepseek-official","mode":"normal","policyKey":"[\"normal\",2,[\"EMPTY_RESPONSE\",\"RATE_LIMIT\",\"SERVER\",\"TIMEOUT\",\"TRANSPORT\"],1,1,0]","retry":1,"maxRetries":2,"delayMs":1,"failure":{"message":"model returned a completed response with no content","code":"EMPTY_RESPONSE"}}}
-{"type":"turn/end","seq":9,"time":1785047244285,"data":{"turn":1,"reason":{"kind":"error","step":1,"failure":{"message":"model returned a completed response with no content","code":"EMPTY_RESPONSE"}}}}
-{"type":"turn/start","seq":10,"time":1785047244285,"data":{"turn":2,"trigger":{"kind":"retry"}}}
-{"type":"step/start","seq":11,"time":1785047244289,"data":{"turn":2,"step":1}}
-{"type":"assistant/chunk","seq":12,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":0,"text":"Recovered."}}}
-{"type":"assistant/chunk","seq":14,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"Recovered."}}}}
-{"type":"assistant/chunk","seq":15,"time":1785047244294,"data":{"turn":2,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":12,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":16,"time":1785047244294,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":17,"time":1785047244294,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"Recovered."}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"324c5925-fe40-4286-b54c-bee5a4ee5f7e"},"usage":{"inputTokens":12,"outputTokens":3}},"sourceEventSeqs":[12,13,14,15,16],"surfaceOp":"append"}
-{"type":"step/end","seq":18,"time":1785047244294,"data":{"turn":2,"step":1}}
-{"type":"turn/end","seq":19,"time":1785047244294,"data":{"turn":2,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":4,"time":1785498788095,"data":{"content":[{"type":"text","text":"This prompt first receives an empty completion, then a retried reply."}],"source":{"kind":"user"},"role":"user","id":"f250a29e-876d-426d-b1df-0a7a7c021aea"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498788095,"data":{"title":"This prompt first receives an","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498788096,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":0,"outputTokens":0}}}}
+{"type":"assistant/chunk","seq":8,"time":1785498788105,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"error","failure":{"message":"model returned a completed response with no content","code":"EMPTY_RESPONSE"}}}}}
+{"type":"llm/retry","seq":9,"time":0,"data":{"turn":1,"step":1,"provider":"deepseek-official","mode":"normal","policyKey":"[\"normal\",2,[\"EMPTY_RESPONSE\",\"RATE_LIMIT\",\"SERVER\",\"TIMEOUT\",\"TRANSPORT\"],1,1,0]","retry":1,"maxRetries":2,"delayMs":1,"failure":{"message":"model returned a completed response with no content","code":"EMPTY_RESPONSE"}}}
+{"type":"assistant/chunk","seq":10,"time":1785498788113,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":11,"time":1785498788113,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"Recovered."}}}
+{"type":"assistant/chunk","seq":12,"time":1785498788113,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"Recovered."}}}}
+{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":12,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":14,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":15,"time":1785498788113,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"Recovered."}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"0cc47e50-e16a-4717-80fa-7b8205ad7540"},"usage":{"inputTokens":12,"outputTokens":3}},"sourceEventSeqs":[10,11,12,13,14],"surfaceOp":"append"}
+{"type":"step/end","seq":16,"time":1785498788113,"data":{"turn":1,"step":1}}
+{"type":"turn/end","seq":17,"time":1785498788113,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/acp-agent/tests/snapshots/error-finish/input.json b/examples/acp-agent/tests/snapshots/error-finish/input.json
index 29079a89a3..59e53f60dd 100644
--- a/examples/acp-agent/tests/snapshots/error-finish/input.json
+++ b/examples/acp-agent/tests/snapshots/error-finish/input.json
@@ -2,6 +2,6 @@
   "steps": [
     { "op": "initialize" },
     { "op": "newSession" },
-    { "op": "promptExpectError", "text": "This prompt triggers a recorded provider error." }
+    { "op": "prompt", "text": "This prompt triggers a recorded provider error." }
   ]
 }
diff --git a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl
index 3bea496c4d..1e799e56ba 100644
--- a/examples/acp-agent/tests/snapshots/error-finish/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/error-finish/session.jsonl
@@ -1,8 +1,11 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"},"role":"user","id":"3d8fced9-efab-4698-b76a-e452746fadc6"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":0,"data":{"title":"This prompt triggers a recorded","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785499006384,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"},"role":"user","id":"49cf1325-55f5-4fdc-84a8-72d67cdf7b9e"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785499006385,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785499006415,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"step/end","seq":5,"time":0,"data":{"turn":1,"step":1}}
-{"type":"turn/end","seq":6,"time":0,"data":{"turn":1,"reason":{"kind":"error","step":1,"failure":{"message":"simulated provider error (HTTP 401)","code":"AUTH"}}}}
+{"type":"user/message","seq":4,"time":1785499006415,"data":{"content":[{"type":"text","text":"This prompt triggers a recorded provider error."}],"source":{"kind":"user"},"role":"user","id":"49cf1325-55f5-4fdc-84a8-72d67cdf7b9e"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785499006415,"data":{"title":"This prompt triggers a recorded","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785499006416,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1785499006424,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"error","failure":{"message":"simulated provider error (HTTP 401)","code":"AUTH"}}}}}
+{"type":"step/end","seq":8,"time":1785499006425,"data":{"turn":1,"step":1}}
+{"type":"turn/end","seq":9,"time":1785499006425,"data":{"turn":1,"reason":{"kind":"error","error":{"message":"simulated provider error (HTTP 401)","code":"AUTH"}}}}
diff --git a/examples/acp-agent/tests/snapshots/error-finish/stdout.expected.jsonl b/examples/acp-agent/tests/snapshots/error-finish/stdout.expected.jsonl
index 4ad17f44e8..d25d2a6db0 100644
--- a/examples/acp-agent/tests/snapshots/error-finish/stdout.expected.jsonl
+++ b/examples/acp-agent/tests/snapshots/error-finish/stdout.expected.jsonl
@@ -1,3 +1,3 @@
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 {"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}"}}
-{"jsonrpc":"2.0","id":3,"error":{"code":-32603,"message":"Internal error: turn failed: simulated provider error (HTTP 401)"}}
+{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}}
diff --git a/examples/acp-agent/tests/snapshots/escalation-approved/session.jsonl b/examples/acp-agent/tests/snapshots/escalation-approved/session.jsonl
index 8c85f91401..749499b4f1 100644
--- a/examples/acp-agent/tests/snapshots/escalation-approved/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/escalation-approved/session.jsonl
@@ -1,33 +1,35 @@
 {"type":"session","version":0,"id":"f3cbd087-fb45-4b32-b0f2-3082d65bfcb4","createdAt":1783860675270,"cwd":"{{cwd}}","delegationDepth":0}
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-{"type":"user/message","seq":1,"time":1784821261714,"data":{"content":[{"type":"text","text":"The sandbox already denied writing /tmp/dsh-escalated.txt earlier (it is outside this workspace). Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > /tmp/dsh-escalated.txt && cat /tmp/dsh-escalated.txt && rm /tmp/dsh-escalated.txt, with sandbox_permissions set to danger-full-access and the justification 'the user asked to write a file outside the workspace'. Do not run it without sandbox_permissions first. I will approve the permission prompt. After the result, reply with the single word DONE and stop."}],"source":{"kind":"user"},"role":"user","id":"8fcf378f-b720-4a86-be32-95ddec1651c3"},"surfaceOp":"append"}
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diff --git a/examples/acp-agent/tests/snapshots/escalation-rejected/session.jsonl b/examples/acp-agent/tests/snapshots/escalation-rejected/session.jsonl
index 81c152a8d8..1e14e1b65c 100644
--- a/examples/acp-agent/tests/snapshots/escalation-rejected/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/escalation-rejected/session.jsonl
@@ -1,32 +1,34 @@
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diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl
index e4b84dee8c..86d43dec88 100644
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diff --git a/examples/acp-agent/tests/snapshots/fs-escalation-approved/session.jsonl b/examples/acp-agent/tests/snapshots/fs-escalation-approved/session.jsonl
index 6bd1e05763..d400490129 100644
--- a/examples/acp-agent/tests/snapshots/fs-escalation-approved/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/fs-escalation-approved/session.jsonl
@@ -1,33 +1,35 @@
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diff --git a/examples/acp-agent/tests/snapshots/fs-glob-sampling/session.jsonl b/examples/acp-agent/tests/snapshots/fs-glob-sampling/session.jsonl
index 8579543459..8cb991341b 100644
--- a/examples/acp-agent/tests/snapshots/fs-glob-sampling/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/fs-glob-sampling/session.jsonl
@@ -1,24 +1,26 @@
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diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl
index 7ff933ab4b..b544c20fda 100644
--- a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl
index 58cb8c5f34..ef23b95f18 100644
--- a/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/fs-read-window/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl b/examples/acp-agent/tests/snapshots/fs-read/session.jsonl
index 70c0f679bd..6bec89e392 100644
--- a/examples/acp-agent/tests/snapshots/fs-read/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/fs-write/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write/session.jsonl
index f90f803470..f3566f1fb2 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-block/session.jsonl
index 8c64ec0d09..2ff6a40b51 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-posttool-context/session.jsonl
index e94f687ecc..7523ba7ff2 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl
index acd88bdec1..575d9f8980 100644
--- a/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-cc-pretool-ask/session.jsonl
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index 524da9bdaa..53b1ea01cc 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/stdout.expected.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/stdout.expected.jsonl
index cb25d1c6bb..d25d2a6db0 100644
--- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/stdout.expected.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-block/stdout.expected.jsonl
@@ -1,3 +1,3 @@
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diff --git a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl
index 9248936147..1d30fd7679 100644
--- a/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-cc-promptsubmit-context/session.jsonl
@@ -1,19 +1,21 @@
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index a208441738..77dff50615 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-invalid-matcher/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-invalid-matcher/session.jsonl
index b10a9fa072..31a95546b2 100644
--- a/examples/acp-agent/tests/snapshots/hook-codex-invalid-matcher/session.jsonl
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index 312879b530..5e6a5bfce9 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-posttool-context/session.jsonl
index 2fc630b5c0..28d35ee59c 100644
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl
index bf6972025c..7bf26e421c 100644
--- a/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-codex-pretool-block/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/stdout.expected.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/stdout.expected.jsonl
index cb25d1c6bb..d25d2a6db0 100644
--- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/stdout.expected.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-block/stdout.expected.jsonl
@@ -1,3 +1,3 @@
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl
index 20c12e2b0f..16a961f2d6 100644
--- a/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-codex-promptsubmit-context/session.jsonl
@@ -1,19 +1,21 @@
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diff --git a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl
index e164e5a984..d04df6b296 100644
--- a/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/hook-codex-stop-continue/session.jsonl
@@ -1,35 +1,39 @@
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diff --git a/examples/acp-agent/tests/snapshots/session-query-spill/session.jsonl b/examples/acp-agent/tests/snapshots/session-query-spill/session.jsonl
index 653fa9416f..8090e3571d 100644
--- a/examples/acp-agent/tests/snapshots/session-query-spill/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/session-query-spill/session.jsonl
@@ -1,34 +1,36 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
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+{"type":"assistant/chunk","seq":28,"time":0,"data":{"turn":1,"step":3,"chunk":{"type":"text-delta","index":0,"text":"DONE"}}}
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+{"type":"assistant/message","seq":32,"time":1785498769063,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"b3c9f4db-70de-4d38-a6c1-45042d8c506c"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[27,28,29,30,31],"surfaceOp":"append"}
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diff --git a/examples/acp-agent/tests/snapshots/session-sandbox-root/session.jsonl b/examples/acp-agent/tests/snapshots/session-sandbox-root/session.jsonl
index 9da57be604..552e608335 100644
--- a/examples/acp-agent/tests/snapshots/session-sandbox-root/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/session-sandbox-root/session.jsonl
@@ -1,24 +1,26 @@
 {"type":"session","version":0,"id":"00000000-0000-0000-0000-000000000000","createdAt":0,"cwd":"/Users/cty/acp-snap-cwd-MABAjO","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1784567324138,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1784821266392,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create session-root.txt in the current directory containing exactly: session root. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"b53fe9ec-e73f-4ee8-8774-94aaf9de5c6e"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1784821266392,"data":{"title":"Use the write tool (NOT","messageSeqs":[1],"source":{"kind":"fallback"}}}
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 {"type":"step/start","seq":3,"time":1784821266397,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1784821266398,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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-{"type":"assistant/message","seq":20,"time":1784821266442,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"fffac6af-a016-4db6-b11e-9d8a41034262"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[15,16,17,18,19],"surfaceOp":"append"}
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+{"type":"user/message","seq":4,"time":1785498831818,"data":{"content":[{"type":"text","text":"Use the write tool (NOT bash) to create session-root.txt in the current directory containing exactly: session root. Then reply with exactly the single word DONE."}],"source":{"kind":"user"},"role":"user","id":"d31f0f48-ab50-4de6-8d0b-d5faebb342d1"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498831818,"data":{"title":"Use the write tool (NOT","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498831819,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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+{"type":"assistant/chunk","seq":11,"time":1785498831828,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
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+{"type":"step/end","seq":15,"time":1785498831844,"data":{"turn":1,"step":1}}
+{"type":"step/start","seq":16,"time":1785498831851,"data":{"turn":1,"step":2}}
+{"type":"assistant/chunk","seq":17,"time":1784821266442,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":18,"time":1784821266442,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":0,"text":"DONE"}}}
+{"type":"assistant/chunk","seq":19,"time":1784821266442,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE"}}}}
+{"type":"assistant/chunk","seq":20,"time":1784567324157,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}}}
+{"type":"assistant/chunk","seq":21,"time":1785498831855,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":22,"time":1785498831855,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"f88d6e6f-4063-43b3-a0e0-3b67abd95b72"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[17,18,19,20,21],"surfaceOp":"append"}
+{"type":"step/end","seq":23,"time":1785498831856,"data":{"turn":1,"step":2}}
+{"type":"turn/end","seq":24,"time":1785498831856,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/acp-agent/tests/snapshots/session-title-after-turn/session.jsonl b/examples/acp-agent/tests/snapshots/session-title-after-turn/session.jsonl
index ca0491650f..628458b37c 100644
--- a/examples/acp-agent/tests/snapshots/session-title-after-turn/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/session-title-after-turn/session.jsonl
@@ -1,16 +1,18 @@
 {"type":"session","version":0,"id":"session-title-after-turn","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1785222848166,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1785222848166,"data":{"content":[{"type":"text","text":"Reply with exactly TITLE_DONE. Do not use tools."}],"source":{"kind":"user"},"role":"user","id":"00000000-0000-4000-8000-000000000001"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1785222848166,"data":{"title":"Reply with exactly TITLE_DONE. Do","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498762928,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Reply with exactly TITLE_DONE. Do not use tools."}],"source":{"kind":"user"},"role":"user","id":"1977c00f-4730-44c6-84e4-2aa8309ee6c8"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498762929,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498762955,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":1785222848199,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1785222848199,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"session/title-llm-request","seq":5,"time":1785222848201,"data":{"titleProvider":"session-title-first-message-llm","messageSeqs":[1],"route":{"provider":"title-replay","model":"title-model"},"system":"Create a concise title for an AI coding-assistant session from the supplied human messages.\nReturn only the title on one line, **in plain text of natural language**, with no quotes, prefix, explanation, Markdown, XML, or terminal control codes. No code is allowed.\nUse the language of the messages.\nAim for about 5 words in non-CJK languages or 10 CJK characters.","messages":[{"content":[{"type":"text","text":"Generate the session title from this JSON array of human messages:\n[{\"seq\":1,\"text\":\"Reply with exactly TITLE_DONE. Do not use tools.\"}]"}],"source":{"kind":"plugin","plugin":"dsh-session-title-llm"},"role":"user","id":"00000000-0000-4000-8000-000000000002"}],"maxTokens":32}}
-{"type":"assistant/chunk","seq":6,"time":1785222848208,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":7,"time":1785222848208,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"TITLE_DONE"}}}
-{"type":"assistant/chunk","seq":8,"time":1785222848208,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"TITLE_DONE"}}}}
-{"type":"assistant/chunk","seq":9,"time":1785222848208,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}}}
-{"type":"assistant/chunk","seq":10,"time":1785222848208,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":11,"time":1785222848208,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"TITLE_DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"00000000-0000-4000-8000-000000000003"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[6,7,8,9,10],"surfaceOp":"append"}
-{"type":"step/end","seq":12,"time":1785222848209,"data":{"turn":1,"step":1}}
-{"type":"turn/end","seq":13,"time":1785222848209,"data":{"turn":1,"reason":{"kind":"completed"}}}
-{"type":"session/title","seq":14,"time":1785222848209,"data":{"title":"Late durable session title","messageSeqs":[1],"source":{"kind":"provider","provider":"session-title-first-message-llm","model":{"provider":"title-replay","model":"title-model"}}}}
+{"type":"user/message","seq":4,"time":1785498762955,"data":{"content":[{"type":"text","text":"Reply with exactly TITLE_DONE. Do not use tools."}],"source":{"kind":"user"},"role":"user","id":"1977c00f-4730-44c6-84e4-2aa8309ee6c8"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498762955,"data":{"title":"Reply with exactly TITLE_DONE. Do","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498762958,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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+{"type":"session/title","seq":16,"time":1785498762968,"data":{"title":"Late durable session title","messageSeqs":[4],"source":{"kind":"provider","provider":"session-title-first-message-llm","model":{"provider":"title-replay","model":"title-model"}}}}
diff --git a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl
index 216b9c2f65..19da8d4a37 100644
--- a/examples/acp-agent/tests/snapshots/skill-load/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/skill-load/session.jsonl
@@ -1,31 +1,33 @@
 {"type":"session","version":0,"id":"9eb4181f-2d05-49d3-98fc-3711fe2f5664","createdAt":1783654655599,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1783654655602,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
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-{"type":"user/message","seq":3,"time":1784903324926,"data":{"content":[{"type":"text","text":"<system-reminder>\nA skill is a reusable set of task-specific instructions. The following skills are available in this session:\n\n<available_skills>\n- `model-only-skill`: Prove user-disabled skills remain available to the model.\n- `snapshot-skill`: Exercise project skill discovery and loading in snapshot tests.\n</available_skills>\n\nIf the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.\n</system-reminder>"}],"source":{"kind":"plugin","plugin":"dsh-tool-skill"},"role":"user","id":"4f537803-7424-41eb-887f-f39676b89187"},"surfaceOp":"append"}
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-{"type":"assistant/message","seq":14,"time":1784903324935,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"snapshot-skill\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"cc7d430d-d011-4428-8572-0274c6082277"},"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[6,7,8,9,10,11,12,13],"surfaceOp":"append"}
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-{"type":"turn/end","seq":29,"time":1784903324956,"data":{"turn":1,"reason":{"kind":"completed"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498773710,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Load the snapshot-skill skill with the skill tool, then reply DONE."}],"source":{"kind":"user"},"role":"user","id":"6002f0a1-7ac1-4f5e-9bd9-425fe71137f3"}]}}
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+{"type":"user/message","seq":5,"time":1785498773755,"data":{"content":[{"type":"text","text":"<system-reminder>\nA skill is a reusable set of task-specific instructions. The following skills are available in this session:\n\n<available_skills>\n- `model-only-skill`: Prove user-disabled skills remain available to the model.\n- `snapshot-skill`: Exercise project skill discovery and loading in snapshot tests.\n</available_skills>\n\nIf the user names a skill, or the task clearly matches a skill's description, call the `skill` tool with the exact skill name before taking task actions. Load all applicable skills, then follow their full instructions. This catalog contains summaries only; do not infer or follow a skill's instructions until it has been loaded.\n</system-reminder>"}],"source":{"kind":"plugin","plugin":"dsh-tool-skill"},"role":"user","id":"c3b7f81f-a1d3-4103-ab0d-5b7a34ff74b7"},"surfaceOp":"append"}
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+{"type":"assistant/message","seq":16,"time":1785498773765,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"Load the requested skill."},{"type":"tool-call","id":"call_skill_load","name":"skill","arguments":"{\"name\":\"snapshot-skill\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"462971f2-ed5d-4de2-9908-f65220efe91d"},"usage":{"inputTokens":100,"outputTokens":20,"cacheReadTokens":0,"reasoningTokens":5}},"sourceEventSeqs":[8,9,10,11,12,13,14,15],"surfaceOp":"append"}
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+{"type":"tool/result","seq":18,"time":1785498773774,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"call_skill_load"},"content":[{"type":"tool-result","toolCallId":"call_skill_load","content":[{"type":"text","text":"<skill_content name=\"snapshot-skill\">\n<skill_resources>\nBase directory for this skill: {{cwd}}/.dsh/skills/snapshot-skill\nResolve relative paths mentioned by this skill against the base directory before using them. Load referenced resources only as needed.\n</skill_resources>\n\n<skill_instructions>\nFollow these snapshot-only instructions.\nResolve referenced resources relative to this skill directory.\n</skill_instructions>\n</skill_content>"}],"isError":false}],"role":"user","id":"20fb9dc5-0df9-43be-bc6c-996a453895ac"}},"sourceEventSeqs":[17],"surfaceOp":"append"}
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+{"type":"assistant/chunk","seq":24,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"DONE"}}}
+{"type":"assistant/chunk","seq":25,"time":1783654655611,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The skill is loaded."}}}}
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+{"type":"assistant/message","seq":29,"time":1785498773786,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The skill is loaded."},{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"bc5c7f33-1f28-4c67-b874-ad6b4bb568a9"},"usage":{"inputTokens":180,"outputTokens":10,"cacheReadTokens":0,"reasoningTokens":4}},"sourceEventSeqs":[21,22,23,24,25,26,27,28],"surfaceOp":"append"}
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+{"type":"turn/end","seq":31,"time":1785498773786,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.1.jsonl
index 7de9d377db..795f0de3f0 100644
--- a/examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.1.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.1.jsonl
@@ -1,24 +1,26 @@
 {"type":"session","version":0,"id":"22222222-2222-4222-8222-222222222222","createdAt":1001,"cwd":"{{cwd}}","parentSession":"11111111-1111-4111-8111-111111111111","delegationDepth":1}
-{"type":"turn/start","seq":0,"time":1784540790312,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1784540790312,"data":{"content":[{"type":"text","text":"Call subagent once. Ask that child to attempt one further subagent call, then report the result."}],"source":{"kind":"user"},"role":"user","id":"e1664eb5-480b-4987-a0a3-4fcd85ccb04d"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1784540790312,"data":{"title":"Call subagent once. Ask that","messageSeqs":[1],"source":{"kind":"fallback"}}}
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 {"type":"step/start","seq":3,"time":1784540790318,"data":{"turn":1,"step":1}}
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-{"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"call_depth_one_child","name":"subagent","argumentsDelta":"{\"description\":\"Start depth two\",\"prompt\":\"Attempt one subagent call beyond the configured cap, then report the rejection.\"}"}}}
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diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl
index a5002ad8a4..c619722079 100644
--- a/examples/acp-agent/tests/snapshots/subagent-fork/session.1.jsonl
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@@ -1,33 +1,37 @@
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diff --git a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl
index 992d86bc57..bd9020133d 100644
--- a/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-fork/session.jsonl
@@ -1,44 +1,48 @@
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diff --git a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl
index 131dc97b0c..cfa2f2b8da 100644
--- a/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl
@@ -1,17 +1,19 @@
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index b4fc996ffa..0577fc80bb 100644
--- a/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl
index 149d8c6df0..db371516aa 100644
--- a/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl
index 3eced8fa8e..48c938757f 100644
--- a/examples/acp-agent/tests/snapshots/subagent-multi/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl
index 170f871f48..22d9e69394 100644
--- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.1.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl
index 8e2569df7c..a4aa9a6c68 100644
--- a/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-spawn/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl b/examples/acp-agent/tests/snapshots/text-turn/session.jsonl
index 9fe9ade111..99eca78cc2 100644
--- a/examples/acp-agent/tests/snapshots/text-turn/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/todo-write/session.jsonl b/examples/acp-agent/tests/snapshots/todo-write/session.jsonl
index c6b27e9c6d..e7ee87cd09 100644
--- a/examples/acp-agent/tests/snapshots/todo-write/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl b/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl
index 9f6ceb5930..cc74fd82a7 100644
--- a/examples/acp-agent/tests/snapshots/tool-call-turn/session.jsonl
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index af78dc43cf..0f1da8d1a4 100644
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diff --git a/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl b/examples/acp-agent/tests/snapshots/workflow-run/session.1.jsonl
index c7a957525e..2cfa3c0449 100644
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diff --git a/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl b/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl
index 5c4b1086ee..35f005c0cc 100644
--- a/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/workflow-run/session.jsonl
@@ -1,30 +1,32 @@
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diff --git a/examples/acp-agent/tests/snapshots/workspace-context/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-context/session.jsonl
index 832916d334..1b6859295d 100644
--- a/examples/acp-agent/tests/snapshots/workspace-context/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/workspace-context/session.jsonl
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diff --git a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl b/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl
index ed61019baa..7affc58b17 100644
--- a/examples/acp-agent/tests/snapshots/workspace-edit/session.jsonl
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+{"type":"assistant/chunk","seq":77,"time":1783352265489,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to:\n1. Read the file greeting.txt\n2. Append the word WORLD as a second line\n3. Read the file back with cat to confirm\n4. Reply with DONE\n\nLet me start by reading the file to see its contents."}}}}
+{"type":"assistant/chunk","seq":78,"time":1783352265489,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_OjRFB4zvxu6UALDjytZD0978","name":"read","arguments":"{\"file_path\": \"greeting.txt\"}"}}}}
+{"type":"assistant/chunk","seq":79,"time":1783352265489,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":2918,"outputTokens":101,"cacheReadTokens":0,"reasoningTokens":55}}}}
+{"type":"assistant/chunk","seq":80,"time":1785498777370,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":81,"time":1785498777370,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to:\n1. Read the file greeting.txt\n2. Append the word WORLD as a second line\n3. Read the file back with cat to confirm\n4. Reply with DONE\n\nLet me start by reading the file to see its contents."},{"type":"tool-call","id":"call_00_OjRFB4zvxu6UALDjytZD0978","name":"read","arguments":"{\"file_path\": \"greeting.txt\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"519d9590-4a83-4011-890e-6d9a031fe21f"},"usage":{"inputTokens":2918,"outputTokens":101,"cacheReadTokens":0,"reasoningTokens":55}},"sourceEventSeqs":[7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80],"surfaceOp":"append"}
+{"type":"tool/call","seq":82,"time":1785498777371,"data":{"turn":1,"step":1,"callId":"call_00_OjRFB4zvxu6UALDjytZD0978","name":"read","arguments":"{\"file_path\": \"greeting.txt\"}"}}
+{"type":"tool/result","seq":83,"time":1785498777381,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"call_00_OjRFB4zvxu6UALDjytZD0978"},"content":[{"type":"tool-result","toolCallId":"call_00_OjRFB4zvxu6UALDjytZD0978","content":[{"type":"text","text":"<path>{{cwd}}/greeting.txt</path>\n<type>file</type>\n<content>\n1: hello\n\n(End of file - total 1 lines)\n</content>"}],"isError":false}],"role":"user","id":"ebb385ab-96ff-4b62-94fb-845b8c10f51d"}},"sourceEventSeqs":[82],"surfaceOp":"append"}
+{"type":"step/end","seq":84,"time":1785498777381,"data":{"turn":1,"step":1}}
+{"type":"step/start","seq":85,"time":1785498777389,"data":{"turn":1,"step":2}}
+{"type":"assistant/chunk","seq":86,"time":1783352266386,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
+{"type":"reasoning-chunks","seq0":87,"time0":1783352266550,"data":{"turn":1,"step":2,"index":0,"dt":[30,0,0,0,29,1,0,32,1,0,0,0,0,32,0,1,32,1,1,0,0,31,1,0,0,0,32,33,30,0,68],"texts":["The"," file"," contains"," \"","hello","\""," on"," one"," line","."," Now"," I"," need"," to"," append"," a"," second"," line"," with"," \"","WOR","LD","\""," to"," it","."," Then"," cat"," it"," to"," confirm","."]}}
+{"type":"assistant/chunk","seq":119,"time":1783352266905,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"tool-call"}}}
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+{"type":"assistant/chunk","seq":154,"time":1783352267302,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The file contains \"hello\" on one line. Now I need to append a second line with \"WORLD\" to it. Then cat it to confirm."}}}}
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+{"type":"assistant/chunk","seq":157,"time":1785498777395,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":158,"time":1785498777395,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The file contains \"hello\" on one line. Now I need to append a second line with \"WORLD\" to it. Then cat it to confirm."},{"type":"tool-call","id":"call_00_IUUvbNiPcnwhVL8ErEFS4806","name":"bash","arguments":"{\"command\": \"printf '\\\\nWORLD' >> greeting.txt\", \"description\": \"Append newline and WORLD to greeting.txt\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"a3392db0-9275-4c80-9bd0-d93a749dfbf8"},"usage":{"inputTokens":261,"outputTokens":107,"cacheReadTokens":2816,"reasoningTokens":32}},"sourceEventSeqs":[86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157],"surfaceOp":"append"}
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+{"type":"assistant/chunk","seq":202,"time":1783352268414,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":1,"block":{"type":"tool-call","id":"call_00_Wo4H7tFNheZJWKVDrAHK5851","name":"bash","arguments":"{\"command\": \"cat greeting.txt\", \"description\": \"Read greeting.txt to confirm\"}"}}}}
+{"type":"assistant/chunk","seq":203,"time":1783352268414,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":126,"outputTokens":77,"cacheReadTokens":3072,"reasoningTokens":12}}}}
+{"type":"assistant/chunk","seq":204,"time":1785498777425,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":205,"time":1785498777425,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"reasoning","text":"Good, now let me read the file back with cat."},{"type":"tool-call","id":"call_00_Wo4H7tFNheZJWKVDrAHK5851","name":"bash","arguments":"{\"command\": \"cat greeting.txt\", \"description\": \"Read greeting.txt to confirm\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"88059e4f-7237-49cd-ba3f-63867a5945ab"},"usage":{"inputTokens":126,"outputTokens":77,"cacheReadTokens":3072,"reasoningTokens":12}},"sourceEventSeqs":[163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204],"surfaceOp":"append"}
+{"type":"tool/call","seq":206,"time":1785498777425,"data":{"turn":1,"step":3,"callId":"call_00_Wo4H7tFNheZJWKVDrAHK5851","name":"bash","arguments":"{\"command\": \"cat greeting.txt\", \"description\": \"Read greeting.txt to confirm\"}"}}
+{"type":"tool/result","seq":207,"time":1785498777438,"data":{"turn":1,"step":3,"message":{"source":{"kind":"tool","callId":"call_00_Wo4H7tFNheZJWKVDrAHK5851"},"content":[{"type":"tool-result","toolCallId":"call_00_Wo4H7tFNheZJWKVDrAHK5851","content":[{"type":"text","text":"hello\n\nWORLD"}],"isError":false}],"role":"user","id":"54578576-603a-4d3e-879e-5c228965ca28"}},"sourceEventSeqs":[206],"surfaceOp":"append"}
+{"type":"step/end","seq":208,"time":1785498777438,"data":{"turn":1,"step":3}}
+{"type":"step/start","seq":209,"time":1785498777445,"data":{"turn":1,"step":4}}
+{"type":"assistant/chunk","seq":210,"time":1783352269129,"data":{"turn":1,"step":4,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
+{"type":"reasoning-chunks","seq0":211,"time0":1783352269291,"data":{"turn":1,"step":4,"index":0,"dt":[13,1,0,0,33,0,32,34,1,0,0,0,32,1,0,33,1,32,1,0,0],"texts":["The"," file"," now"," has"," two"," lines",":\n","1","."," hello","\n","2","."," WORLD","\n\n","I"," can"," reply"," with"," D","ONE","."]}}
+{"type":"assistant/chunk","seq":233,"time":1783352269505,"data":{"turn":1,"step":4,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":234,"time":1783352269505,"data":{"turn":1,"step":4,"chunk":{"type":"text-delta","index":1,"text":"D"}}}
+{"type":"assistant/chunk","seq":235,"time":1783352269538,"data":{"turn":1,"step":4,"chunk":{"type":"text-delta","index":1,"text":"ONE"}}}
+{"type":"assistant/chunk","seq":236,"time":1783352269538,"data":{"turn":1,"step":4,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The file now has two lines:\n1. hello\n2. WORLD\n\nI can reply with DONE."}}}}
+{"type":"assistant/chunk","seq":237,"time":1783352269538,"data":{"turn":1,"step":4,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}}
+{"type":"assistant/chunk","seq":238,"time":1783352269538,"data":{"turn":1,"step":4,"chunk":{"type":"usage","usage":{"inputTokens":219,"outputTokens":25,"cacheReadTokens":3072,"reasoningTokens":22}}}}
+{"type":"assistant/chunk","seq":239,"time":1785498777450,"data":{"turn":1,"step":4,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":240,"time":1785498777450,"data":{"turn":1,"step":4,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The file now has two lines:\n1. hello\n2. WORLD\n\nI can reply with DONE."},{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"8584019c-63eb-4bd3-aa79-7d7bc3360b8f"},"usage":{"inputTokens":219,"outputTokens":25,"cacheReadTokens":3072,"reasoningTokens":22}},"sourceEventSeqs":[210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239],"surfaceOp":"append"}
+{"type":"step/end","seq":241,"time":1785498777450,"data":{"turn":1,"step":4}}
+{"type":"turn/end","seq":242,"time":1785498777450,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/headless-agent/tests/headless.snapshot.ts b/examples/headless-agent/tests/headless.snapshot.ts
index 4217f24228..98a1e23e8f 100644
--- a/examples/headless-agent/tests/headless.snapshot.ts
+++ b/examples/headless-agent/tests/headless.snapshot.ts
@@ -207,7 +207,7 @@ describe('headless stream-json snapshots', () => {
     expect(normalized).toBe(await readFile(streamExpected, 'utf8'))
   }, LOADER_SMOKE_TEST_TIMEOUT_MS)
 
-  it('surfaces actionable missing-credential guidance through the one-shot app', async () => {
+  it('logs actionable missing-credential guidance through the one-shot app', async () => {
     const streamExpected = join(credentialsScenarioDir, 'stream-json.expected.jsonl')
     let runCwd = ''
     const result = await runLoaderSmoke({
@@ -223,22 +223,19 @@ describe('headless stream-json snapshots', () => {
         DEEPSEEK_BASE_URL: '',
         NODE_OPTIONS: [process.env.NODE_OPTIONS, '--disable-warning=ExperimentalWarning'].filter(Boolean).join(' '),
       },
-      // The designed failure surface: the one-shot app reports the failed turn.
-      expectedExitCode: 1,
       prepare: (cwd) => { runCwd = cwd },
     })
 
-    // The guidance leads with the credential store — the path that keeps the
-    // secret out of configuration files — and offers a literal key last.
-    expect(result.stderr).toBe(
-      'dsh-cli-demo: turn 1 failed at step 1: llm-deepseek: no API key for provider route "deepseek-official";'
-      + ' store DEEPSEEK_API_KEY through the credentials service (the web Models page writes it),'
-      + ' export DEEPSEEK_API_KEY in the launching environment, or — as a last resort — set a literal'
-      + ' "apiKey" in the llm-deepseek settings section\n',
-    )
+    expect(result.stderr).toBe('')
     const normalized = normalizeHeadlessStream(result.stdout, runCwd)
     if (refreshing) await writeFile(streamExpected, normalized)
     expect(normalized).toBe(await readFile(streamExpected, 'utf8'))
+    // The durable failure leads with the credential store — the path that
+    // keeps the secret out of configuration files — and offers a literal key last.
+    expect(normalized).toContain(
+      'store DEEPSEEK_API_KEY through the credentials service (the web Models page writes it),',
+    )
+    expect(normalized).toContain('as a last resort')
   }, LOADER_SMOKE_TEST_TIMEOUT_MS)
 
   it('logs the model default and a dynamic next-step reasoning effort', async () => {
diff --git a/examples/headless-agent/tests/semantic-checkpoint-snapshots/tool-outcome-unknown/session.expected.jsonl b/examples/headless-agent/tests/semantic-checkpoint-snapshots/tool-outcome-unknown/session.expected.jsonl
index e3d3d0d3f8..ad37d7592c 100644
--- a/examples/headless-agent/tests/semantic-checkpoint-snapshots/tool-outcome-unknown/session.expected.jsonl
+++ b/examples/headless-agent/tests/semantic-checkpoint-snapshots/tool-outcome-unknown/session.expected.jsonl
@@ -1,5 +1,5 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
+{"type":"turn/start","seq":0,"time":0,"data":{"turn":1}}
 {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Perform one side-effecting remote mutation."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
 {"type":"step/start","seq":2,"time":0,"data":{"turn":1,"step":1}}
 {"type":"assistant/message","seq":3,"time":0,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"unknown-outcome-call","name":"write_remote","arguments":"{\"value\":1}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"}},"surfaceOp":"append"}
@@ -8,15 +8,17 @@
 {"type":"step/end","seq":6,"time":0,"data":{"turn":1,"step":1}}
 {"type":"turn/end","seq":7,"time":0,"data":{"turn":1,"reason":{"kind":"interrupted"}}}
 {"type":"session/end-seed","seq":8,"time":0,"data":{}}
-{"type":"turn/start","seq":9,"time":0,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":10,"time":0,"data":{"content":[{"type":"text","text":"Continue safely from the interrupted operation."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"session/title","seq":11,"time":0,"data":{"title":"Perform one side-effecting remote mutati","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":9,"time":0,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Continue safely from the interrupted operation."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"}]}}
+{"type":"agent/inbox/spliced","seq":10,"time":0,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":11,"time":0,"data":{"turn":2}}
 {"type":"step/start","seq":12,"time":0,"data":{"turn":2,"step":1}}
-{"type":"request/header","seq":13,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"assistant/chunk","seq":14,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":15,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":0,"text":"I will verify the external state before deciding whether to retry the side-effecting operation."}}}
-{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"I will verify the external state before deciding whether to retry the side-effecting operation."}}}}
-{"type":"assistant/chunk","seq":17,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":18,"time":0,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"I will verify the external state before deciding whether to retry the side-effecting operation."}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"}},"sourceEventSeqs":[14,15,16,17],"surfaceOp":"append"}
-{"type":"step/end","seq":19,"time":0,"data":{"turn":2,"step":1}}
-{"type":"turn/end","seq":20,"time":0,"data":{"turn":2,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":13,"time":0,"data":{"content":[{"type":"text","text":"Continue safely from the interrupted operation."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
+{"type":"session/title","seq":14,"time":0,"data":{"title":"Perform one side-effecting remote mutati","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":15,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
+{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":17,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"text-delta","index":0,"text":"I will verify the external state before deciding whether to retry the side-effecting operation."}}}
+{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"I will verify the external state before deciding whether to retry the side-effecting operation."}}}}
+{"type":"assistant/chunk","seq":19,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":20,"time":0,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"I will verify the external state before deciding whether to retry the side-effecting operation."}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"}},"sourceEventSeqs":[16,17,18,19],"surfaceOp":"append"}
+{"type":"step/end","seq":21,"time":0,"data":{"turn":2,"step":1}}
+{"type":"turn/end","seq":22,"time":0,"data":{"turn":2,"reason":{"kind":"completed"}}}
diff --git a/examples/headless-agent/tests/semantic-checkpoint.snapshot.ts b/examples/headless-agent/tests/semantic-checkpoint.snapshot.ts
index 4b8d7aed6b..de41799b76 100644
--- a/examples/headless-agent/tests/semantic-checkpoint.snapshot.ts
+++ b/examples/headless-agent/tests/semantic-checkpoint.snapshot.ts
@@ -112,10 +112,8 @@ describe('semantic checkpoint recovery snapshot', () => {
     const records = result.stdout.trimEnd().split('\n').map(line => JSON.parse(line) as Record<string, unknown>)
     expect(records.at(-1)).toMatchObject({
       type: 'result',
-      success: true,
       sessionId,
-      result: 'I will verify the external state before deciding whether to retry the side-effecting operation.',
-      reason: { kind: 'completed' },
+      output: 'I will verify the external state before deciding whether to retry the side-effecting operation.',
     })
   }, LOADER_SMOKE_TEST_TIMEOUT_MS)
 })
diff --git a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.1.jsonl b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
index d19a962e48..4daf301f52 100644
--- a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
+++ b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.1.jsonl
@@ -1,14 +1,16 @@
 {"type":"session","version":0,"id":"22222222-2222-4222-8222-222222222222","createdAt":1783950001000,"cwd":"{{cwd}}","parentSession":"11111111-1111-4111-8111-111111111111","delegationDepth":1}
-{"type":"turn/start","seq":0,"time":1783957884563,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1783957884563,"data":{"content":[{"type":"text","text":"Reply with exactly DIRECT_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"b07a1eeb-2060-44e5-87d3-05d315a4a74b"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1783957884563,"data":{"title":"Reply with exactly DIRECT_CHILD_OK and","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498583877,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Reply with exactly DIRECT_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"06b46843-adbd-4d1d-aeaa-b63890b0b707"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498583878,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498583895,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":1783957884564,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1783957884564,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
-{"type":"assistant/chunk","seq":5,"time":1783950001005,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":6,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"DIRECT_CHILD_OK"}}}
-{"type":"assistant/chunk","seq":7,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DIRECT_CHILD_OK"}}}}
-{"type":"assistant/chunk","seq":8,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":9,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":10,"time":1783957884564,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"DIRECT_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"c7bcc77c-c6e5-425f-ac11-76ece69d31d5"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[5,6,7,8,9],"surfaceOp":"append"}
-{"type":"step/end","seq":11,"time":1783957884564,"data":{"turn":1,"step":1}}
-{"type":"turn/end","seq":12,"time":1783957884564,"data":{"turn":1,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":4,"time":1785498583895,"data":{"content":[{"type":"text","text":"Reply with exactly DIRECT_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"06b46843-adbd-4d1d-aeaa-b63890b0b707"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498583895,"data":{"title":"Reply with exactly DIRECT_CHILD_OK and","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498583897,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":8,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"DIRECT_CHILD_OK"}}}
+{"type":"assistant/chunk","seq":9,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DIRECT_CHILD_OK"}}}}
+{"type":"assistant/chunk","seq":10,"time":1783957884564,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":11,"time":1785498583897,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":12,"time":1785498583897,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"DIRECT_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"91aa6768-4cba-4ae3-a95b-145d15e91175"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[7,8,9,10,11],"surfaceOp":"append"}
+{"type":"step/end","seq":13,"time":1785498583897,"data":{"turn":1,"step":1}}
+{"type":"turn/end","seq":14,"time":1785498583897,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.2.jsonl b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
index 7bf0f35750..13b09febae 100644
--- a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
+++ b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.2.jsonl
@@ -1,14 +1,16 @@
 {"type":"session","version":0,"id":"33333333-3333-4333-8333-333333333333","createdAt":1783950002000,"cwd":"{{cwd}}","parentSession":"11111111-1111-4111-8111-111111111111","delegationDepth":1}
-{"type":"turn/start","seq":0,"time":1783957884700,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1783957884700,"data":{"content":[{"type":"text","text":"Reply with exactly WORKFLOW_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"1d565b63-5689-4c09-9686-abd3ee379e28"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1783957884700,"data":{"title":"Reply with exactly WORKFLOW_CHILD_OK and","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498584048,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Reply with exactly WORKFLOW_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"bee2a87c-3285-4149-9477-f63f2a7e1175"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498584048,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498584066,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":1783957884700,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1783957884701,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
-{"type":"assistant/chunk","seq":5,"time":1783950002005,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":6,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"WORKFLOW_CHILD_OK"}}}
-{"type":"assistant/chunk","seq":7,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"WORKFLOW_CHILD_OK"}}}}
-{"type":"assistant/chunk","seq":8,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
-{"type":"assistant/chunk","seq":9,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":10,"time":1783957884701,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"WORKFLOW_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"df4055a4-c1cc-4248-940d-f7fa937e2d39"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[5,6,7,8,9],"surfaceOp":"append"}
-{"type":"step/end","seq":11,"time":1783957884701,"data":{"turn":1,"step":1}}
-{"type":"turn/end","seq":12,"time":1783957884701,"data":{"turn":1,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":4,"time":1785498584066,"data":{"content":[{"type":"text","text":"Reply with exactly WORKFLOW_CHILD_OK and nothing else."}],"source":{"kind":"user"},"role":"user","id":"bee2a87c-3285-4149-9477-f63f2a7e1175"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498584066,"data":{"title":"Reply with exactly WORKFLOW_CHILD_OK and","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498584067,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":8,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":0,"text":"WORKFLOW_CHILD_OK"}}}
+{"type":"assistant/chunk","seq":9,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"WORKFLOW_CHILD_OK"}}}}
+{"type":"assistant/chunk","seq":10,"time":1783957884701,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":11,"time":1785498584067,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":12,"time":1785498584067,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"WORKFLOW_CHILD_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"4f3a69f7-d0e2-4b7c-a670-31f11961ef7e"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[7,8,9,10,11],"surfaceOp":"append"}
+{"type":"step/end","seq":13,"time":1785498584068,"data":{"turn":1,"step":1}}
+{"type":"turn/end","seq":14,"time":1785498584068,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.jsonl b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.jsonl
index 3f991a88a4..cab806436b 100644
--- a/examples/headless-agent/tests/snapshots/advanced-toolchain/session.jsonl
+++ b/examples/headless-agent/tests/snapshots/advanced-toolchain/session.jsonl
@@ -1,66 +1,68 @@
 {"type":"session","version":0,"id":"11111111-1111-4111-8111-111111111111","createdAt":1783950000000,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1783957884479,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1783957884479,"data":{"content":[{"type":"text","text":"Run this advanced flow exactly once: try a no-op temporary Cordis Plugin named snapshot-marker; use run_code to inspect the live temporary Plugins through tools.cordis_inspect; delegate once to a direct spawn child; run one workflow that delegates to another spawn child; stop dyn-1; then reply with exactly ADVANCED_HEADLESS_OK."}],"source":{"kind":"user"},"role":"user","id":"0dda35fe-e148-4400-b837-2f6e6fe40ae6"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1783957884479,"data":{"title":"Run this advanced flow exactly","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498583746,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Run this advanced flow exactly once: try a no-op temporary Cordis Plugin named snapshot-marker; use run_code to inspect the live temporary Plugins through tools.cordis_inspect; delegate once to a direct spawn child; run one workflow that delegates to another spawn child; stop dyn-1; then reply with exactly ADVANCED_HEADLESS_OK."}],"source":{"kind":"user"},"role":"user","id":"9fbbf4b8-e87e-43ab-bd44-78f9387de77d"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498583747,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498583779,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":1783957884486,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1783957884486,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
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+{"type":"user/message","seq":4,"time":1785498583779,"data":{"content":[{"type":"text","text":"Run this advanced flow exactly once: try a no-op temporary Cordis Plugin named snapshot-marker; use run_code to inspect the live temporary Plugins through tools.cordis_inspect; delegate once to a direct spawn child; run one workflow that delegates to another spawn child; stop dyn-1; then reply with exactly ADVANCED_HEADLESS_OK."}],"source":{"kind":"user"},"role":"user","id":"9fbbf4b8-e87e-43ab-bd44-78f9387de77d"},"surfaceOp":"append"}
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+{"type":"request/header","seq":6,"time":1785498583782,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.\n\nVerify your work by running the code or tests. Keep answers brief and factual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.\n\n## Writing code for run_code\n\nPass `run_code` the body of an async TypeScript function (erasable syntax only — no `enum` or namespaces; type annotations are advisory, the code runs type-stripped). Inside the program:\n\n- Call tools as `await tools.name(args)` — quoted access for exotic names: `tools[\"my-tool\"](args)`. Every call resolves to the tool's typed canonical JSON value. Tool arguments must be lossless JSON.\n- A FAILED tool call rejects with `ToolCallError`, whose `toolName` identifies the failed tool and whose `message` is human-readable — `try/catch` it to handle and continue.\n- Independent read-only calls MAY overlap under `Promise.all` (safe calls run concurrently; mutating calls run alone, in submission order). Sequence dependent work with `await`.\n- Emit results with `return` and/or `console.log(...)`. ONLY what you print or return comes back to you — intermediate tool results never enter the conversation, so extract just what you need.\n\nThe available tools:\n\n```ts\ntype JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue }\n\ninterface ToolArgsMap {\n  /** Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`. */\n  bash: {\n    /** The bash command to execute. */\n    command: string;\n    /** Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\". */\n    description: string;\n    /** Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry. */\n    timeoutMs?: number;\n    /** Working directory for this command. Defaults to the session workspace; a relative path is resolved against it. */\n    workdir?: string;\n    /** Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc. */\n  cordis_inspect: {\n    /** Limit the report to one section. Omit for all sections. */\n    what?: \"services\" | \"plugins\" | \"tools\" | \"temporary\" | \"api\" | \"events\";\n    /** Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\". */\n    name?: string;\n  } & Record<string, JsonValue>;\n  /** Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime. */\n  cordis_mount: {\n    /** JavaScript body returning a temporary Plugin; evaluated now and saved nowhere. */\n    code: string;\n  } & Record<string, JsonValue>;\n  /** Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins. */\n  cordis_unmount: {\n    /** The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart. */\n    id: string;\n  } & Record<string, JsonValue>;\n  /** Edit an existing UTF-8 text file by replacing literal text. */\n  edit: {\n    /** Path to edit, resolved by the filesystem backend. */\n    file_path: string;\n    /** Literal text to replace. Must match exactly. */\n    old_string: string;\n    /** Literal replacement text. Use an empty string to delete the match. */\n    new_string: string;\n    /** Replace all matches. Defaults to false; when false, old_string must appear exactly once. */\n    replace_all?: boolean;\n  } & Record<string, JsonValue>;\n  /** Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools. */\n  ralph: {\n    /** The immutable completion objective for every fresh Ralph round. */\n    objective: string;\n    /** Optional positive safe-integer round cap, bounded by the deployment ceiling. */\n    maxRounds?: number;\n  } & Record<string, JsonValue>;\n  /** Read a UTF-8 text file and return line-numbered content. */\n  read: {\n    /** Path to read, resolved by the filesystem backend. */\n    file_path: string;\n    /** 1-based first line to return. Defaults to 1. */\n    offset?: number;\n    /** Maximum number of lines to return. Defaults to 2000. */\n    limit?: number;\n  } & Record<string, JsonValue>;\n  /** Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill. */\n  skill: {\n    /** The exact skill name from the available skills list. */\n    name: string;\n  } & Record<string, JsonValue>;\n  /** Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`. */\n  subagent_fork: {\n    /** A short (3-5 word) description of the delegated task, for display. */\n    description: string;\n    /** The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new. */\n    prompt: string;\n    /** Run as a background task and return its id; collect with task_output or stop with task_kill. */\n    run_in_background?: boolean;\n  } & Record<string, JsonValue>;\n  /** Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops. */\n  task_kill: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Optional short reason, recorded in the log and forwarded to the task. */\n    reason?: string;\n  } & Record<string, JsonValue>;\n  /** List your background tasks (running and finished) with their ids, kinds, and statuses. */\n  task_list: Record<string, JsonValue>;\n  /** Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap. */\n  task_output: {\n    /** Task id returned by the tool that started the background work. */\n    task_id: string;\n    /** Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive. */\n    wait?: boolean;\n    /** Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum. */\n    timeout_ms?: number;\n  } & Record<string, JsonValue>;\n  /** Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished). */\n  todo_write: {\n    /** The COMPLETE task list, replacing any previous list. */\n    todos: ({\n      /** What the task is — a short imperative line. */\n      content: string;\n      /** pending (not started) | in_progress (now) | completed (done). */\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n  } & Record<string, JsonValue>;\n  /** Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn. The workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result. Script-body hooks: - `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly. - `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages. - `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`. - `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim. Misused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`. Constraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes. */\n  workflow: {\n    /** The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`). */\n    script: string;\n    /** The workflow identity block (plain JSON — never code). */\n    meta: {\n      /** Short kebab-case workflow name. */\n      name: string;\n      /** One-line description of what the workflow does. */\n      description: string;\n      /** Optional guidance on when this workflow applies. */\n      whenToUse?: string;\n      /** Optional phase declarations matched by phase() calls. */\n      phases?: ({\n        /** The phase title phase() calls match by exact string. */\n        title: string;\n        /** Optional one-line description of the phase. */\n        detail?: string;\n        /** Optional provider override this phase is expected to use. */\n        provider?: string;\n        /** Optional model override this phase is expected to use. */\n        model?: string;\n      } & Record<string, JsonValue>)[];\n    } & Record<string, JsonValue>;\n    /** Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}). */\n    args?: Record<string, JsonValue>;\n  } & Record<string, JsonValue>;\n  /** Create or fully replace a UTF-8 text file. */\n  write: {\n    /** Path to write, resolved by the filesystem backend. */\n    file_path: string;\n    /** Full UTF-8 text content to write. */\n    content: string;\n  } & Record<string, JsonValue>;\n}\n\ninterface ToolOutputMap {\n  bash: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    exitCode: number | null;\n    signal: string | null;\n    timedOut: boolean;\n    aborted: boolean;\n    timeoutMs: number;\n    stdout: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    stderr: {\n      text: string;\n      truncated: boolean;\n      spillPath?: string;\n    };\n    sandbox?: {\n      mode: string;\n      denied: boolean;\n      enforcement?: string;\n      runnerFailed?: boolean;\n    };\n  };\n  cordis_inspect: string;\n  cordis_mount: {\n    id: string;\n    pluginName: string;\n    state: \"pending\" | \"loading\" | \"active\" | \"failed\" | \"disposed\" | \"unloading\";\n    provides: string[];\n    waitingFor: string[];\n  };\n  cordis_unmount: {\n    id: string;\n    pluginName: string;\n  };\n  edit: {\n    path: string;\n    before: string;\n    after: string;\n  };\n  ralph: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  read: {\n    path: string;\n    offset: number;\n    lines: {\n      number: number;\n      text: string;\n    }[];\n    totalLines: number;\n  };\n  skill: {\n    name: string;\n    provider: string;\n    resourceBase?: {\n      kind: \"directory\";\n      path: string;\n    } | {\n      kind: \"url\";\n      url: string;\n    } | {\n      kind: \"opaque\";\n      description: string;\n    };\n    content: string;\n  };\n  subagent: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  subagent_fork: {\n    kind: \"background\";\n    taskId: string;\n  } | {\n    kind: \"foreground\";\n    runId: string;\n    output: JsonValue[];\n  };\n  task_kill: {\n    outcome: \"cancellation-requested\" | \"already-finished\";\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  task_list: ({\n    id: string;\n    kind: string;\n    label: string;\n    status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n    detail?: string;\n    startedAt: number;\n    finishedAt?: number;\n  })[];\n  task_output: {\n    text: string;\n    task: {\n      id: string;\n      kind: string;\n      label: string;\n      status: \"running\" | \"stopping\" | \"completed\" | \"killed\" | \"failed\";\n      detail?: string;\n      startedAt: number;\n      finishedAt?: number;\n    };\n  };\n  todo_write: {\n    todos: ({\n      content: string;\n      status: \"pending\" | \"in_progress\" | \"completed\";\n    })[];\n    counts: {\n      pending: number;\n      inProgress: number;\n      completed: number;\n    };\n  };\n  workflow: {\n    runId: string;\n    agentsStarted: number;\n    result: JsonValue;\n  };\n  write: {\n    path: string;\n    operation: \"create\" | \"update\";\n    before: string | null;\n    after: string;\n  };\n}\n\ntype ToolName = keyof ToolOutputMap\n\ndeclare class ToolCallError extends Error {\n  readonly name: \"ToolCallError\";\n  readonly toolName: ToolName;\n}\n\ndeclare const tools: {\n  [K in ToolName]: (args: ToolArgsMap[K]) => Promise<ToolOutputMap[K]>;\n}\n```","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"cordis_inspect","description":"Inspect the live Cordis runtime in the current DSH process. Read-only. Sections: `services` (every provided ctx service and the plugin fiber that owns it), `plugins` (all live plugin fibers with their lifecycle states), `tools` (the model-facing tools currently registered, i.e. what you can call), `temporary` (only temporary Plugins created by cordis_mount: id, name, state, provided services, awaited services, and lifetime), `api` (method signatures AND argument/return type shapes for every LIVE service — read this before writing plugin code that calls a service), `events` (every harness event with its dispatch mode and exact signature — pick listener targets here). Temporary Plugins exist only in memory, remain active across later turns, and disappear after cordis_unmount, toolset unload, or DSH restart; they are not restored automatically. The `temporary` section is a subset of `plugins`. Omit `what` to get all six sections. With `what:\"api\"` or `what:\"events\"`, pass an exact `name` to narrow to one service/event and include its original source JSDoc.","parameters":{"type":"object","properties":{"what":{"type":"string","description":"Limit the report to one section. Omit for all sections.","enum":["services","plugins","tools","temporary","api","events"]},"name":{"type":"string","description":"Exact service key or event name whose original JSDoc to include; valid only with what:\"api\" or what:\"events\"."}}}},{"name":"cordis_mount","description":"Mount a temporary Cordis Plugin in the current DSH process. This creates an in-memory runtime Plugin, not an installed or configured Plugin. It remains active across later turns until cordis_unmount, toolset unload, or DSH restart. It does not create files, install a package, change cordis.yml or personal/project config, survive restart, or automatically become permanent. To keep it, ask the Agent to implement a normal local, project, or repository Plugin through the regular development workflow. It may affect other sessions in the same process; the sandbox is not a security boundary, and injected services reach the real runtime. `code` runs now as the body of an async JavaScript function in an isolated sandbox and MUST `return` a plugin. Two forms: FUNCTION form `return (ctx) => { … }` — declares no inject, so it can register tools, listen to events, and provide services, but reaching ANY service (e.g. ctx.bash) throws; use it only when you need no services. OBJECT form `return { name?, inject: ['bash', 'llm', …], apply(ctx) { … } }` — declares dependencies, and cordis activates the plugin only after the services exist; PREFER this form. You may reach ONLY the services you list in inject: an undeclared service throws even if it exists, because an undeclared dependency would not be cleaned up if its provider is unmounted. BEFORE calling a service from your code, read cordis_inspect what:\"api\" — it lists method signatures AND the type shapes of their arguments/returns (do not guess a field's type; e.g. a bash run's stdout is an object, not a string). Inside `apply`, use the standard cordis API: `ctx.on(event, listener)` to observe events (see cordis_inspect what:\"events\"), or call `harness.registerTool(ctx, harness.defineTool({ name, description, parameters: { text: { type: 'string', required: true } }, output: { schema: { type: 'string' }, render(_args, value) { return [{ type: 'text', text: value }] } }, async execute(args) { return args.text } }))` to give yourself a new tool — it becomes callable on your NEXT step. Tool parameters: each key IS a property — { type: 'string'|'number'|'integer'|'boolean'|'null'|'object'|'array'|'json', required?: true, description?, enum?, const?, items?, properties? }; every direct DSL object declares additionalProperties: true|false, and oneOf: [schema, schema, ...] replaces type for an exact-one union. A raw JSON-Schema { type: 'object', properties, required?: […] } wrapper is also accepted with open-by-default objects. A tool's `execute` MUST return the lossless JSON value declared by `output.schema`; `output.render(args, value)` separately returns Native/model content blocks. Temporary Plugins can COMPOSE: one Plugin may `ctx.provide('name', value)` a service and another may declare `inject: ['name']` to consume it — the consumer stays pending until the provider exists and returns to pending when the provider is unmounted. Everything registered inside `apply` is cleaned up automatically by cordis_unmount. Sandbox globals: `console` (tagged `[cordis:<id>]`, writes through to the harness terminal), `harness.defineTool`, `harness.registerTool`, `btoa`, `atob`, `TextEncoder`, `TextDecoder`. Node APIs are DISABLED — do filesystem/network/timer work through the cordis services, never Node built-ins: `require`, `setTimeout`/`setInterval`, and `fetch` throw redirect errors; `process` and `Buffer` are undefined. Instead use inject: ['fs'] + ctx.fs for files, inject: ['web'] + ctx.web for HTTP, inject: ['bash'] + ctx.bash for processes, and inject: ['timer'] + ctx.setTimeout/ctx.setInterval for timing (fiber effects, auto-cleaned when unmounted) — cordis_inspect what:\"api\" shows what THIS runtime provides. Write PLAIN JavaScript, not TypeScript (no `as`, no type annotations). Cautions: (1) waterfall events (e.g. tools/pre-execute) hand the listener a trailing `next` callback which MUST be called — returning without `next()` VETOES the call; prefer plain notification events unless you intend to intercept. (2) Never await something that only resolves after the current turn (your code runs INSIDE a tool call of that turn — it would deadlock). (3) Your `ctx` is a restricted façade: you can register tools, observe events, provide/consume services, and use timers, but framework internals (ctx.root, ctx.fiber, ctx.extend, ctx.plugin, …) are withheld. It is not a security boundary though — the services you inject (e.g. ctx.bash) reach the real runtime.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"JavaScript body returning a temporary Plugin; evaluated now and saved nowhere."}},"required":["code"]}},{"name":"cordis_unmount","description":"Unmount a current-process temporary Plugin created by cordis_mount. Waits for its tools, listeners, services, timers, and other owned effects to clean up completely. Only dyn-N temporary ids are accepted; this cannot remove Loader, configured, or installed Plugins.","parameters":{"type":"object","properties":{"id":{"type":"string","description":"The temporary Plugin id returned by cordis_mount (for example \"dyn-1\"); valid only in this process and invalid after unmount or restart."}},"required":["id"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"run_code","description":"Execute a TypeScript program against the available tools. Write the BODY of an async function (erasable syntax only; top-level `await` and `return` work) and call tools as `await tools.name(args)` per the declarations in the system prompt. Only what you print or return comes back — curate it.","parameters":{"type":"object","properties":{"code":{"type":"string","description":"The program: the body of an async TypeScript function."},"description":{"type":"string","description":"Clear, concise description of what this program does in active voice, 5-10 words (shown in the UI). Examples: \"Count TODO markers across packages\"; \"Read failing test and its fixture\"; \"Rename config key in every cordis.yml\"."}},"required":["code","description"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1783950000006,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":8,"time":1783950000007,"data":{"turn":1,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"advanced-mount","name":"cordis_mount","argumentsDelta":"{\"code\":\"return { name: 'snapshot-marker', apply() {} }\"}"}}}
+{"type":"assistant/chunk","seq":9,"time":1783950000008,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"advanced-mount","name":"cordis_mount","arguments":"{\"code\":\"return { name: 'snapshot-marker', apply() {} }\"}"}}}}
+{"type":"assistant/chunk","seq":10,"time":1783950000009,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":11,"time":1785498583784,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":12,"time":1785498583784,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"advanced-mount","name":"cordis_mount","arguments":"{\"code\":\"return { name: 'snapshot-marker', apply() {} }\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"e360d690-dc43-49a5-af5c-30d740f4ee7d"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[7,8,9,10,11],"surfaceOp":"append"}
+{"type":"tool/call","seq":13,"time":1785498583784,"data":{"turn":1,"step":1,"callId":"advanced-mount","name":"cordis_mount","arguments":"{\"code\":\"return { name: 'snapshot-marker', apply() {} }\"}"}}
+{"type":"tool/result","seq":14,"time":1785498583794,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"advanced-mount"},"content":[{"type":"tool-result","toolCallId":"advanced-mount","content":[{"type":"text","text":"Temporary Plugin dyn-1 is running (plugin \"snapshot-marker\"; available until unmounted or DSH restarts)."}],"isError":false}],"role":"user","id":"3e23bd4f-7e06-48f3-9ea3-dde630c5fd6b"}},"sourceEventSeqs":[13],"surfaceOp":"append"}
+{"type":"step/end","seq":15,"time":1785498583794,"data":{"turn":1,"step":1}}
+{"type":"step/start","seq":16,"time":1785498583802,"data":{"turn":1,"step":2}}
+{"type":"assistant/chunk","seq":17,"time":1783950000016,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":18,"time":1783950000017,"data":{"turn":1,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"advanced-code","name":"run_code","argumentsDelta":"{\"code\": \"return await tools.cordis_inspect({ what: 'temporary' })\", \"description\": \"Run the scripted inspection program\"}"}}}
+{"type":"assistant/chunk","seq":19,"time":1783950000018,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"advanced-code","name":"run_code","arguments":"{\"code\": \"return await tools.cordis_inspect({ what: 'temporary' })\", \"description\": \"Run the scripted inspection program\"}"}}}}
+{"type":"assistant/chunk","seq":20,"time":1783950000019,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":21,"time":1785498583804,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":22,"time":1785498583804,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"advanced-code","name":"run_code","arguments":"{\"code\": \"return await tools.cordis_inspect({ what: 'temporary' })\", \"description\": \"Run the scripted inspection program\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"13a836b7-3da7-4822-884f-816ef0b63198"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[17,18,19,20,21],"surfaceOp":"append"}
+{"type":"tool/call","seq":23,"time":1785498583804,"data":{"turn":1,"step":2,"callId":"advanced-code","name":"run_code","arguments":"{\"code\": \"return await tools.cordis_inspect({ what: 'temporary' })\", \"description\": \"Run the scripted inspection program\"}"}}
+{"type":"tool/code-dispatch-start","seq":24,"time":1785498583859,"data":{"parentCallId":"advanced-code","subCallId":"advanced-code:code:1","name":"cordis_inspect","arguments":{"what":"temporary"}}}
+{"type":"tool/code-dispatch","seq":25,"time":1785498583860,"data":{"parentCallId":"advanced-code","subCallId":"advanced-code:code:1","name":"cordis_inspect","arguments":{"what":"temporary"},"isError":false,"content":[{"type":"text","text":"## Temporary Plugins\n- Temporary Plugin dyn-1: snapshot-marker [running] — provides: none; waiting for: none; lifetime: until unmounted or DSH restarts"}]}}
+{"type":"tool/result","seq":26,"time":1785498583861,"data":{"turn":1,"step":2,"message":{"source":{"kind":"tool","callId":"advanced-code"},"content":[{"type":"tool-result","toolCallId":"advanced-code","content":[{"type":"text","text":"## Temporary Plugins\n- Temporary Plugin dyn-1: snapshot-marker [running] — provides: none; waiting for: none; lifetime: until unmounted or DSH restarts"}],"isError":false}],"role":"user","id":"4656de36-eb28-4e1e-858c-9871cc493979"}},"sourceEventSeqs":[23],"surfaceOp":"append"}
+{"type":"step/end","seq":27,"time":1785498583862,"data":{"turn":1,"step":2}}
+{"type":"step/start","seq":28,"time":1785498583867,"data":{"turn":1,"step":3}}
+{"type":"assistant/chunk","seq":29,"time":1783950000028,"data":{"turn":1,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":30,"time":1783950000029,"data":{"turn":1,"step":3,"chunk":{"type":"tool-call-delta","index":0,"id":"advanced-direct-child","name":"subagent","argumentsDelta":"{\"description\":\"Check direct child\",\"prompt\":\"Reply with exactly DIRECT_CHILD_OK and nothing else.\"}"}}}
+{"type":"assistant/chunk","seq":31,"time":1783950000030,"data":{"turn":1,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"advanced-direct-child","name":"subagent","arguments":"{\"description\":\"Check direct child\",\"prompt\":\"Reply with exactly DIRECT_CHILD_OK and nothing else.\"}"}}}}
+{"type":"assistant/chunk","seq":32,"time":1785037378923,"data":{"turn":1,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":33,"time":1785498583869,"data":{"turn":1,"step":3,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":34,"time":1785498583869,"data":{"turn":1,"step":3,"message":{"role":"assistant","content":[{"type":"tool-call","id":"advanced-direct-child","name":"subagent","arguments":"{\"description\":\"Check direct child\",\"prompt\":\"Reply with exactly DIRECT_CHILD_OK and nothing else.\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"6423f16e-4dc3-4c52-b904-d3c395c69dcf"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[29,30,31,32,33],"surfaceOp":"append"}
+{"type":"tool/call","seq":35,"time":1785498583869,"data":{"turn":1,"step":3,"callId":"advanced-direct-child","name":"subagent","arguments":"{\"description\":\"Check direct child\",\"prompt\":\"Reply with exactly DIRECT_CHILD_OK and nothing else.\"}"}}
+{"type":"tool/result","seq":36,"time":1785498583898,"data":{"turn":1,"step":3,"message":{"source":{"kind":"tool","callId":"advanced-direct-child"},"content":[{"type":"tool-result","toolCallId":"advanced-direct-child","content":[{"type":"text","text":"DIRECT_CHILD_OK"}],"isError":false}],"role":"user","id":"89258f98-fb1a-4a7f-9390-d3e4ce329bf4"}},"sourceEventSeqs":[35],"surfaceOp":"append"}
+{"type":"step/end","seq":37,"time":1785498583898,"data":{"turn":1,"step":3}}
+{"type":"step/start","seq":38,"time":1785498583916,"data":{"turn":1,"step":4}}
+{"type":"assistant/chunk","seq":39,"time":1783957884594,"data":{"turn":1,"step":4,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":40,"time":1783957884594,"data":{"turn":1,"step":4,"chunk":{"type":"tool-call-delta","index":0,"id":"advanced-workflow","name":"workflow","argumentsDelta":"{\"script\":\"phase('Delegate')\\nconst reply = await agent('Reply with exactly WORKFLOW_CHILD_OK and nothing else.', { label: 'workflow-child' })\\nreturn { reply }\",\"meta\":{\"name\":\"advanced-headless-snapshot\",\"description\":\"exercise one workflow child through the headless agent\"}}"}}}
+{"type":"assistant/chunk","seq":41,"time":1783957884594,"data":{"turn":1,"step":4,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"advanced-workflow","name":"workflow","arguments":"{\"script\":\"phase('Delegate')\\nconst reply = await agent('Reply with exactly WORKFLOW_CHILD_OK and nothing else.', { label: 'workflow-child' })\\nreturn { reply }\",\"meta\":{\"name\":\"advanced-headless-snapshot\",\"description\":\"exercise one workflow child through the headless agent\"}}"}}}}
+{"type":"assistant/chunk","seq":42,"time":1785037378946,"data":{"turn":1,"step":4,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":43,"time":1785498583919,"data":{"turn":1,"step":4,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":44,"time":1785498583919,"data":{"turn":1,"step":4,"message":{"role":"assistant","content":[{"type":"tool-call","id":"advanced-workflow","name":"workflow","arguments":"{\"script\":\"phase('Delegate')\\nconst reply = await agent('Reply with exactly WORKFLOW_CHILD_OK and nothing else.', { label: 'workflow-child' })\\nreturn { reply }\",\"meta\":{\"name\":\"advanced-headless-snapshot\",\"description\":\"exercise one workflow child through the headless agent\"}}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"80d6f3bc-a6f5-4834-8725-545cb170f625"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[39,40,41,42,43],"surfaceOp":"append"}
+{"type":"tool/call","seq":45,"time":1785498583919,"data":{"turn":1,"step":4,"callId":"advanced-workflow","name":"workflow","arguments":"{\"script\":\"phase('Delegate')\\nconst reply = await agent('Reply with exactly WORKFLOW_CHILD_OK and nothing else.', { label: 'workflow-child' })\\nreturn { reply }\",\"meta\":{\"name\":\"advanced-headless-snapshot\",\"description\":\"exercise one workflow child through the headless agent\"}}"}}
+{"type":"tool/result","seq":46,"time":1785498584070,"data":{"turn":1,"step":4,"message":{"source":{"kind":"tool","callId":"advanced-workflow"},"content":[{"type":"tool-result","toolCallId":"advanced-workflow","content":[{"type":"text","text":"workflow \"advanced-headless-snapshot\" completed (1 agent).\nReturn value:\n{\n  \"reply\": \"WORKFLOW_CHILD_OK\"\n}"}],"isError":false}],"role":"user","id":"4080a2bb-153d-47b5-be75-6f166cf9a7c5"}},"sourceEventSeqs":[45],"surfaceOp":"append"}
+{"type":"step/end","seq":47,"time":1785498584070,"data":{"turn":1,"step":4}}
+{"type":"step/start","seq":48,"time":1785498584083,"data":{"turn":1,"step":5}}
+{"type":"assistant/chunk","seq":49,"time":1783957884719,"data":{"turn":1,"step":5,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":50,"time":1783957884719,"data":{"turn":1,"step":5,"chunk":{"type":"tool-call-delta","index":0,"id":"advanced-unmount","name":"cordis_unmount","argumentsDelta":"{\"id\":\"dyn-1\"}"}}}
+{"type":"assistant/chunk","seq":51,"time":1783957884719,"data":{"turn":1,"step":5,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"advanced-unmount","name":"cordis_unmount","arguments":"{\"id\":\"dyn-1\"}"}}}}
+{"type":"assistant/chunk","seq":52,"time":1785037379534,"data":{"turn":1,"step":5,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":53,"time":1785498584085,"data":{"turn":1,"step":5,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":54,"time":1785498584085,"data":{"turn":1,"step":5,"message":{"role":"assistant","content":[{"type":"tool-call","id":"advanced-unmount","name":"cordis_unmount","arguments":"{\"id\":\"dyn-1\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"084be675-045c-47b3-9ae8-68cba2effd63"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[49,50,51,52,53],"surfaceOp":"append"}
+{"type":"tool/call","seq":55,"time":1785498584086,"data":{"turn":1,"step":5,"callId":"advanced-unmount","name":"cordis_unmount","arguments":"{\"id\":\"dyn-1\"}"}}
+{"type":"tool/result","seq":56,"time":1785498584093,"data":{"turn":1,"step":5,"message":{"source":{"kind":"tool","callId":"advanced-unmount"},"content":[{"type":"tool-result","toolCallId":"advanced-unmount","content":[{"type":"text","text":"Temporary Plugin dyn-1 was unmounted and removed."}],"isError":false}],"role":"user","id":"464a2d81-8fcd-486a-9c2b-9cea78bbc00b"}},"sourceEventSeqs":[55],"surfaceOp":"append"}
+{"type":"step/end","seq":57,"time":1785498584093,"data":{"turn":1,"step":5}}
+{"type":"step/start","seq":58,"time":1785498584100,"data":{"turn":1,"step":6}}
+{"type":"assistant/chunk","seq":59,"time":1783957884720,"data":{"turn":1,"step":6,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":60,"time":1783957884720,"data":{"turn":1,"step":6,"chunk":{"type":"text-delta","index":0,"text":"ADVANCED_HEADLESS_OK"}}}
+{"type":"assistant/chunk","seq":61,"time":1783957884720,"data":{"turn":1,"step":6,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"ADVANCED_HEADLESS_OK"}}}}
+{"type":"assistant/chunk","seq":62,"time":1785037379541,"data":{"turn":1,"step":6,"chunk":{"type":"usage","usage":{"inputTokens":3,"outputTokens":3}}}}
+{"type":"assistant/chunk","seq":63,"time":1785498584102,"data":{"turn":1,"step":6,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":64,"time":1785498584102,"data":{"turn":1,"step":6,"message":{"role":"assistant","content":[{"type":"text","text":"ADVANCED_HEADLESS_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"0fe81229-90ae-4816-b189-5f54d71d3334"},"usage":{"inputTokens":3,"outputTokens":3}},"sourceEventSeqs":[59,60,61,62,63],"surfaceOp":"append"}
+{"type":"step/end","seq":65,"time":1785498584102,"data":{"turn":1,"step":6}}
+{"type":"turn/end","seq":66,"time":1785498584102,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/examples/headless-agent/tests/snapshots/advanced-toolchain/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/advanced-toolchain/stream-json.expected.jsonl
index 5a1e8b00ea..ef8d455135 100644
--- a/examples/headless-agent/tests/snapshots/advanced-toolchain/stream-json.expected.jsonl
+++ b/examples/headless-agent/tests/snapshots/advanced-toolchain/stream-json.expected.jsonl
@@ -1,66 +1,68 @@
-{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}}
-{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Run this advanced flow exactly once: try a no-op temporary Cordis Plugin named snapshot-marker; use run_code to inspect the live temporary Plugins through tools.cordis_inspect; delegate once to a direct spawn child; run one workflow that delegates to another spawn child; stop dyn-1; then reply with exactly ADVANCED_HEADLESS_OK."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}}
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diff --git a/examples/headless-agent/tests/snapshots/goal-tools/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/goal-tools/stream-json.expected.jsonl
index 8efcfc3bae..0b355b0f19 100644
--- a/examples/headless-agent/tests/snapshots/goal-tools/stream-json.expected.jsonl
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diff --git a/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
index 4098de697b..a4336877da 100644
--- a/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
+++ b/examples/headless-agent/tests/snapshots/missing-credential/stream-json.expected.jsonl
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diff --git a/examples/headless-agent/tests/snapshots/provider-retry/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/provider-retry/stream-json.expected.jsonl
index 08c751e319..7dd245a764 100644
--- a/examples/headless-agent/tests/snapshots/provider-retry/stream-json.expected.jsonl
+++ b/examples/headless-agent/tests/snapshots/provider-retry/stream-json.expected.jsonl
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+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":11,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"RETRY_OK"}}}}}
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+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}}
+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"assistant/message","seq":14,"time":0,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"text","text":"RETRY_OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":4,"outputTokens":2}},"sourceEventSeqs":[9,10,11,12,13],"surfaceOp":"append"}}
+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"step/end","seq":15,"time":0,"data":{"turn":1,"step":1}}}
+{"type":"session_event","sessionId":"{{sessionId}}","event":{"type":"turn/end","seq":16,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}}}
+{"type":"result","sessionId":"{{sessionId}}","output":"RETRY_OK","usage":{"inputTokens":4,"outputTokens":2}}
diff --git a/examples/headless-agent/tests/snapshots/pty-tools/session.jsonl b/examples/headless-agent/tests/snapshots/pty-tools/session.jsonl
index efcf733281..e92c0fd6ef 100644
--- a/examples/headless-agent/tests/snapshots/pty-tools/session.jsonl
+++ b/examples/headless-agent/tests/snapshots/pty-tools/session.jsonl
@@ -1,74 +1,76 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Exercise the six PTY tools in order, including one missing-session signal error, then reply DONE."}],"source":{"kind":"user"},"role":"user","id":"8cc78530-3ead-4c68-a38f-dcc14d6a2a82"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":0,"data":{"title":"Exercise the six PTY tools","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498587408,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Exercise the six PTY tools in order, including one missing-session signal error, then reply DONE."}],"source":{"kind":"user"},"role":"user","id":"df102f1f-15a8-4ca0-8235-932557deb79b"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498587408,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498587436,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"You are an AI agent powered by the DeepSeek Harness SDK.\n\nYou are headless-agent, a coding assistant powered by the deepseek-v4-flash model.\n\nVerify your work by running the code or tests. Keep answers brief and\nfactual.\n\n\nUse the read tool — not shell commands like cat — to inspect text files. Results include line numbers. Use offset and limit to continue reading large files.\n\nUse the write tool to create files or completely replace file contents. Existing files are overwritten, so read an existing file first (the default fs-policy requires it) and prefer edit for targeted changes.\n\nUse the edit tool for targeted changes to existing UTF-8 text files. It replaces literal old_string with new_string; by default old_string must appear exactly once. If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse a terminal session only when work needs persistent terminal state or interactive stdin; prefer bash/read/write/edit for bounded one-shot operations. Track every terminal session id and close sessions that no longer matter. An inferred_idle or timeout result does not prove the foreground command exited.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. Before giving a final answer, collect every still-relevant task with task_output (set wait: true only when you are genuinely blocked on it), and task_kill tasks that stopped mattering.\n\nUse the workflow tool ONLY when the user explicitly asks for a workflow or for large multi-agent orchestration: you write a JavaScript script (the tool description documents the exact format) that fans work out across many subagents with phases and structured results. For one or two delegations, prefer plain subagent calls.\n\nUse the ralph tool ONLY when the direct human explicitly asks for a Ralph loop or fresh-agent iterative execution. Each Ralph round starts a fresh child with no conversation seed and uses the shared workspace as durable memory. Completion and blockers are worker reports, not independent evaluation. Use same-session goal tools for ordinary long-running objectives, and plain subagents or workflows for bounded delegation and fan-out.","tools":[{"name":"bash","description":"Execute a bash command (`bash -c`) and return its stdout/stderr. Each call runs in a fresh shell: no state (cwd, variables, functions) persists between calls — pass `workdir` instead of using `cd`. Non-zero exits are reported as `[exit code: N]`. Current harness environment facts are exposed through managed `$DSH_*` variables; inspect them when needed. Commands may run under a file sandbox; a blocked file operation is reported as `[sandbox: file access denied under <mode> mode]` — a policy denial, not a bug in the command; do not retry another way. Long output is truncated to its tail; the full output is saved to a file whose path is reported when available. Set `run_in_background: true` for long-running commands: the call returns a task id immediately; read its output with `task_output` and stop it with `task_kill`.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The bash command to execute."},"description":{"type":"string","description":"Clear, concise description of what this command does in active voice, 5-10 words (shown in the UI). Examples: \"ls\" → \"List files in current directory\"; \"git status\" → \"Show working tree status\"; \"npm install\" → \"Install package dependencies\"."},"timeoutMs":{"type":"number","description":"Timeout in milliseconds. The executor applies its configured default and cap, and kills the command on expiry."},"workdir":{"type":"string","description":"Working directory for this command. Defaults to the session workspace; a relative path is resolved against it."},"run_in_background":{"type":"boolean","description":"Run in the background and return a task id immediately (collect with task_output, stop with task_kill). No timeout applies."}},"required":["command","description"]}},{"name":"edit","description":"Edit an existing UTF-8 text file by replacing literal text.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to edit, resolved by the filesystem backend."},"old_string":{"type":"string","description":"Literal text to replace. Must match exactly."},"new_string":{"type":"string","description":"Literal replacement text. Use an empty string to delete the match."},"replace_all":{"type":"boolean","description":"Replace all matches. Defaults to false; when false, old_string must appear exactly once."}},"required":["file_path","old_string","new_string"]}},{"name":"ralph","description":"Run a foreground fresh-agent Ralph loop toward one immutable objective. Use only when the direct human explicitly asks for Ralph or fresh-agent iteration. Each round opens a new child with no parent conversation or prior child session; the shared workspace is long-term memory, and only a bounded structured report crosses rounds. The call returns when a worker reports completion or a concrete blocker, or at the round limit. Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. 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Defaults to the configured wait timeout; capped by the configured maximum."}},"required":["task_id"]}},{"name":"terminal_close","description":"Close one persistent terminal and wait until its captured owned process tree is gone.","parameters":{"type":"object","properties":{"sessionId":{"type":"string","description":"Terminal session id."}},"required":["sessionId"]}},{"name":"terminal_list","description":"List persistent terminal sessions owned by the current agent.","parameters":{"type":"object","properties":{}}},{"name":"terminal_open","description":"Create a persistent, owner-isolated terminal session from a registered backend type. Use this for shell or REPL state that must survive across tool calls.","parameters":{"type":"object","properties":{"type":{"type":"string","description":"Registered terminal backend type, usually \"shell\"."},"name":{"type":"string","description":"Optional owner-local display name such as \"main\" or \"gdb\"."},"cwd":{"type":"string","description":"Initial working directory. Defaults to the deployment workspace root."}},"required":["type"]}},{"name":"terminal_read","description":"Read a bounded page of retained output from a persistent terminal without sending input.","parameters":{"type":"object","properties":{"sessionId":{"type":"string","description":"Terminal session id."},"offset":{"type":"number","description":"Newest-relative line offset (default 0)."},"count":{"type":"number","description":"Requested line count (default 500; backend caps apply)."}},"required":["sessionId"]}},{"name":"terminal_send","description":"Send text to a persistent terminal. By default Enter is submitted and the call waits for a prompt, stdin wait, output silence, timeout, or session exit. Background mode returns a task id for task_output/task_kill.","parameters":{"type":"object","properties":{"sessionId":{"type":"string","description":"Terminal session id returned by terminal_open or terminal_list."},"text":{"type":"string","description":"UTF-8 text to write to the terminal."},"submit":{"type":"boolean","description":"Submit Enter after text (default true). Set false for control characters or incomplete REPL input."},"run_in_background":{"type":"boolean","description":"Return a task id immediately; collect with task_output or stop with task_kill."}},"required":["sessionId","text"]}},{"name":"terminal_signal","description":"Send an allowed signal to the current foreground process group of a persistent terminal.","parameters":{"type":"object","properties":{"sessionId":{"type":"string","description":"Terminal session id."},"signal":{"type":"string","description":"Signal to deliver. Shell-targeted SIGKILL is rejected; use terminal_close.","enum":["SIGINT","SIGTERM","SIGKILL","SIGTSTP","SIGHUP"]}},"required":["sessionId","signal"]}},{"name":"todo_write","description":"Record and update a structured task list for the current work. Send the ENTIRE list every call — it REPLACES the previous list (there are no partial updates, no per-item edits). Use it to plan multi-step work and show progress: add one todo per concrete step before you start. Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. Statuses: `pending` (not started), `in_progress` (being worked on now), `completed` (finished).","parameters":{"type":"object","properties":{"todos":{"type":"array","description":"The COMPLETE task list, replacing any previous list.","items":{"type":"object","additionalProperties":false,"properties":{"content":{"type":"string","description":"What the task is — a short imperative line."},"status":{"type":"string","description":"pending (not started) | in_progress (now) | completed (done).","enum":["pending","in_progress","completed"]}},"required":["content","status"]}}},"required":["todos"]}},{"name":"workflow","description":"Run a JavaScript workflow script that orchestrates subagents at scale. Use this for work that fans out across many independent pieces — an audit over many files, a migration, multi-angle research, adversarial verification of findings — where you write the orchestration as a script instead of delegating turn by turn.\n\nThe workflow's identity rides the `meta` parameter as JSON: required `name` (short kebab-case) and `description` strings, optional `whenToUse` string and `phases` array (`{title, detail?, provider?, model?}`). The `script` parameter is the plain JavaScript body ONLY (NOT TypeScript, and NO `export const meta` statement — meta is a parameter, not code), running with top-level await; end with `return <value>` — the value must be JSON-serializable and is this tool's result.\n\nScript-body hooks:\n- `agent(prompt, opts?): Promise<any>` — run one subagent to completion. Without `opts.schema` it resolves to the child's final text; with `opts.schema` (an object-rooted JSON Schema using ONLY type/properties/required/additionalProperties/items/enum/const/oneOf — no pattern/format/numeric bounds) it resolves to the validated object. Resolves `null` when the child fails (filter with `.filter(Boolean)`). Other opts: `label` (display), `phase` (progress group), and independent `provider`/`model` LLM target overrides (either may be provided alone). Anything else (`effort`/`isolation`/`agentType`) is rejected loudly.\n- `pipeline(items, ...stages): Promise<any[]>` — run each item through the stages independently with NO barrier between stages (prefer this for multi-stage work). Each stage receives `(prev, item, index)`. An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
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If old_string appears multiple times, provide a more specific old_string or set replace_all to true. Read the file first (the default fs-policy requires it), unless you just created or edited it in this session.\n\nCheck the [exit code: N] marker on every bash result; investigate failures before moving on.\n\nUse a terminal session only when work needs persistent terminal state or interactive stdin; prefer bash/read/write/edit for bounded one-shot operations. Track every terminal session id and close sessions that no longer matter. An inferred_idle or timeout result does not prove the foreground command exited.\n\nTrack every background task id you start. You are notified in-session when a task finishes — do not busy-poll or sleep on one; keep working on independent steps and do not duplicate a running task's work. 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Ordinary long-running same-session work belongs to goal tools.","parameters":{"type":"object","properties":{"objective":{"type":"string","description":"The immutable completion objective for every fresh Ralph round."},"maxRounds":{"type":"number","description":"Optional positive safe-integer round cap, bounded by the deployment ceiling."}},"required":["objective"]}},{"name":"read","description":"Read a UTF-8 text file and return line-numbered content.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to read, resolved by the filesystem backend."},"offset":{"type":"number","description":"1-based first line to return. Defaults to 1."},"limit":{"type":"number","description":"Maximum number of lines to return. Defaults to 2000."}},"required":["file_path"]}},{"name":"skill","description":"Load the full instructions for an available skill. Call this with the exact skill name from the session skill catalog before acting on a task that names or clearly matches that skill.","parameters":{"type":"object","properties":{"name":{"type":"string","description":"The exact skill name from the available skills list."}},"required":["name"]}},{"name":"subagent","description":"Delegate a self-contained task to a subagent (a separate agent that works in its own context) and return its final result. Use this to offload focused, independent work — research, a scoped implementation, an analysis — so it does not consume this conversation's context. The subagent runs to completion and you receive only its final answer, not its intermediate steps. Give it a complete, standalone prompt: it does not see this conversation. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The complete, self-contained task for the subagent. It does not share this conversation's context, so include everything it needs."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"subagent_fork","description":"Delegate a task to a subagent that inherits this conversation: a child agent seeded with all completed turns so far (it does not see the current in-flight turn), returning only its final result. Use this when the subtask builds on this conversation's context — a follow-up analysis, a review, a continuation — without consuming this conversation's context for the work itself. You receive only its final answer, not its intermediate steps. Set `run_in_background: true` to return a task id; collect with `task_output` and stop with `task_kill`.","parameters":{"type":"object","properties":{"description":{"type":"string","description":"A short (3-5 word) description of the delegated task, for display."},"prompt":{"type":"string","description":"The task for the subagent. It already sees this conversation's completed turns, so build on them freely and state only what is new."},"run_in_background":{"type":"boolean","description":"Run as a background task and return its id; collect with task_output or stop with task_kill."}},"required":["description","prompt"]}},{"name":"task_kill","description":"Request cancellation of a running background task by task id. Returns immediately; the task settles as killed once its work actually stops.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"reason":{"type":"string","description":"Optional short reason, recorded in the log and forwarded to the task."}},"required":["task_id"]}},{"name":"task_list","description":"List your background tasks (running and finished) with their ids, kinds, and statuses.","parameters":{"type":"object","properties":{}}},{"name":"task_output","description":"Read a background task. Stream tasks return only output since the previous read; final-output tasks return their result after settlement. Every response ends with `[status: ...]`. Reads are non-blocking unless `wait: true`, which waits up to the configured cap.","parameters":{"type":"object","properties":{"task_id":{"type":"string","description":"Task id returned by the tool that started the background work."},"wait":{"type":"boolean","description":"Block until the task reaches a terminal status or the timeout expires. A timed-out wait returns [status: running] and leaves the task alive."},"timeout_ms":{"type":"number","description":"Max wait in milliseconds (only meaningful with wait: true). 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Use this for shell or REPL state that must survive across tool calls.","parameters":{"type":"object","properties":{"type":{"type":"string","description":"Registered terminal backend type, usually \"shell\"."},"name":{"type":"string","description":"Optional owner-local display name such as \"main\" or \"gdb\"."},"cwd":{"type":"string","description":"Initial working directory. Defaults to the deployment workspace root."}},"required":["type"]}},{"name":"terminal_read","description":"Read a bounded page of retained output from a persistent terminal without sending input.","parameters":{"type":"object","properties":{"sessionId":{"type":"string","description":"Terminal session id."},"offset":{"type":"number","description":"Newest-relative line offset (default 0)."},"count":{"type":"number","description":"Requested line count (default 500; backend caps apply)."}},"required":["sessionId"]}},{"name":"terminal_send","description":"Send text to a persistent terminal. 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Keep AT MOST ONE todo `in_progress` at a time; while work remains, exactly one active task should be `in_progress`. Mark a todo `completed` the moment it is done (do not batch completions), and allow no `in_progress` item only once all work is complete. Skip the list for trivial single-step tasks. 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An ordinary stage throw drops that ITEM to `null` and skips its remaining stages.\n- `parallel(thunks): Promise<any[]>` — run zero-argument functions concurrently and await ALL of them (a barrier; use only when a stage genuinely needs every prior result together). A throwing thunk resolves to `null`.\n- `phase(title)` — start a progress phase; `log(message)` — narrate progress; `args` — the tool call's `args` input, verbatim.\n\nMisused hooks (bad arguments, unknown options, unsupported schemas, tripped caps) throw errors that ALWAYS kill the script — they never dissolve into a per-item `null`.\n\nConstraints: concurrency and total-agent caps apply; no filesystem, network, timers, or Node.js APIs are provided — the agents do the work, the script only coordinates them. The run executes in the foreground: this call returns when the whole script finishes.","parameters":{"type":"object","properties":{"script":{"type":"string","description":"The plain-JS workflow script body (top-level await allowed; NO `export const meta` statement; end with `return <json-value>`)."},"meta":{"type":"object","description":"The workflow identity block (plain JSON — never code).","additionalProperties":true,"properties":{"name":{"type":"string","description":"Short kebab-case workflow name."},"description":{"type":"string","description":"One-line description of what the workflow does."},"whenToUse":{"type":"string","description":"Optional guidance on when this workflow applies."},"phases":{"type":"array","description":"Optional phase declarations matched by phase() calls.","items":{"type":"object","additionalProperties":true,"properties":{"title":{"type":"string","description":"The phase title phase() calls match by exact string."},"detail":{"type":"string","description":"Optional one-line description of the phase."},"provider":{"type":"string","description":"Optional provider override this phase is expected to use."},"model":{"type":"string","description":"Optional model override this phase is expected to use."}},"required":["title"]}}},"required":["name","description"]},"args":{"type":"object","description":"Optional JSON input exposed to the script as the `args` global (wrap a bare list as a field, e.g. {\"files\": [...]}).","additionalProperties":true}},"required":["script","meta"]}},{"name":"write","description":"Create or fully replace a UTF-8 text file.","parameters":{"type":"object","properties":{"file_path":{"type":"string","description":"Path to write, resolved by the filesystem backend."},"content":{"type":"string","description":"Full UTF-8 text content to write."}},"required":["file_path","content"]}}]},"reason":"initial"}}
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diff --git a/examples/headless-agent/tests/snapshots/pty-tools/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/pty-tools/stream-json.expected.jsonl
index 3e8dd6da97..ee5c538c9f 100644
--- a/examples/headless-agent/tests/snapshots/pty-tools/stream-json.expected.jsonl
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diff --git a/examples/headless-agent/tests/snapshots/ralph-loop/stream-json.expected.jsonl b/examples/headless-agent/tests/snapshots/ralph-loop/stream-json.expected.jsonl
index 2a03b1f30c..76c63fabec 100644
--- a/examples/headless-agent/tests/snapshots/ralph-loop/stream-json.expected.jsonl
+++ b/examples/headless-agent/tests/snapshots/ralph-loop/stream-json.expected.jsonl
@@ -1,24 +1,26 @@
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diff --git a/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/child.expected.jsonl b/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/child.expected.jsonl
index 131428ab32..d2357005d5 100644
--- a/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/child.expected.jsonl
+++ b/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/child.expected.jsonl
@@ -1,25 +1,27 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","parentSession":"{{sessionId}}","delegationDepth":1}
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-{"type":"user/message","seq":2,"time":0,"data":{"content":[{"type":"text","text":"Use the write tool exactly once with file_path set to exactly the relative path inherited.txt and content escaped. If the write is denied, reply with the single word CHILD_DENIED and the denial marker line; do not retry and do not request escalation. If it succeeds, reply CHILD_WROTE."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
-{"type":"session/title","seq":3,"time":0,"data":{"title":"Use the write tool exactly","messageSeqs":[2],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":1,"time":0,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Use the write tool exactly once with file_path set to exactly the relative path inherited.txt and content escaped. If the write is denied, reply with the single word CHILD_DENIED and the denial marker line; do not retry and do not request escalation. If it succeeds, reply CHILD_WROTE."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"}]}}
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diff --git a/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/parent.expected.jsonl b/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/parent.expected.jsonl
index 72dc3056c3..631a615ddd 100644
--- a/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/parent.expected.jsonl
+++ b/examples/headless-agent/tests/subagent-inheritance-snapshots/parent-override/parent.expected.jsonl
@@ -1,29 +1,31 @@
 {"type":"session","version":0,"id":"{{sessionId}}","createdAt":0,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":0,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
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 {"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Tighten this session to read-only."}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}
 {"type":"sandbox/mode","seq":2,"time":0,"data":{"mode":"read-only"}}
 {"type":"turn/end","seq":3,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}}
 {"type":"session/end-seed","seq":4,"time":0,"data":{}}
-{"type":"turn/start","seq":5,"time":0,"data":{"turn":2,"trigger":{"kind":"message","source":{"kind":"user"}}}}
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-{"type":"session/title","seq":7,"time":0,"data":{"title":"Tighten this session to read-only.","messageSeqs":[1],"source":{"kind":"fallback"}}}
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+{"type":"turn/start","seq":7,"time":0,"data":{"turn":2}}
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-{"type":"request/header","seq":9,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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-{"type":"assistant/chunk","seq":21,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"text-delta","index":0,"text":"The delegated child was denied by the sandbox. PARENT_DONE"}}}
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+{"type":"session/title","seq":10,"time":0,"data":{"title":"Tighten this session to read-only.","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":11,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
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+{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"delegate-write","name":"subagent","argumentsDelta":"{\"description\": \"Delegated write probe\", \"prompt\": \"Use the write tool exactly once with file_path set to exactly the relative path inherited.txt and content escaped. If the write is denied, reply with the single word CHILD_DENIED and the denial marker line; do not retry and do not request escalation. If it succeeds, reply CHILD_WROTE.\"}"}}}
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+{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":17,"time":0,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"delegate-write","name":"subagent","arguments":"{\"description\": \"Delegated write probe\", \"prompt\": \"Use the write tool exactly once with file_path set to exactly the relative path inherited.txt and content escaped. If the write is denied, reply with the single word CHILD_DENIED and the denial marker line; do not retry and do not request escalation. If it succeeds, reply CHILD_WROTE.\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[12,13,14,15,16],"surfaceOp":"append"}
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+{"type":"step/end","seq":20,"time":0,"data":{"turn":2,"step":1}}
+{"type":"step/start","seq":21,"time":0,"data":{"turn":2,"step":2}}
+{"type":"assistant/chunk","seq":22,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":23,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"text-delta","index":0,"text":"The delegated child was denied by the sandbox. PARENT_DONE"}}}
+{"type":"assistant/chunk","seq":24,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"The delegated child was denied by the sandbox. PARENT_DONE"}}}}
+{"type":"assistant/chunk","seq":25,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}}}
+{"type":"assistant/chunk","seq":26,"time":0,"data":{"turn":2,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":27,"time":0,"data":{"turn":2,"step":2,"message":{"role":"assistant","content":[{"type":"text","text":"The delegated child was denied by the sandbox. PARENT_DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[22,23,24,25,26],"surfaceOp":"append"}
+{"type":"step/end","seq":28,"time":0,"data":{"turn":2,"step":2}}
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diff --git a/examples/headless-agent/tests/subagent-inheritance.snapshot.ts b/examples/headless-agent/tests/subagent-inheritance.snapshot.ts
index e7e4e40d09..dee4776473 100644
--- a/examples/headless-agent/tests/subagent-inheritance.snapshot.ts
+++ b/examples/headless-agent/tests/subagent-inheritance.snapshot.ts
@@ -115,10 +115,8 @@ describe('parent-only override inheritance snapshot', () => {
     const records = result.stdout.trimEnd().split('\n').map(line => JSON.parse(line) as Record<string, unknown>)
     expect(records.at(-1)).toMatchObject({
       type: 'result',
-      success: true,
       sessionId,
-      result: 'The delegated child was denied by the sandbox. PARENT_DONE',
-      reason: { kind: 'completed' },
+      output: 'The delegated child was denied by the sandbox. PARENT_DONE',
     })
   }, LOADER_SMOKE_TEST_TIMEOUT_MS)
 })
diff --git a/examples/jsonrpc-agent/tests/snapshots/bash-tool/notifications.expected.jsonl b/examples/jsonrpc-agent/tests/snapshots/bash-tool/notifications.expected.jsonl
index 94af2458c1..899121f04c 100644
--- a/examples/jsonrpc-agent/tests/snapshots/bash-tool/notifications.expected.jsonl
+++ b/examples/jsonrpc-agent/tests/snapshots/bash-tool/notifications.expected.jsonl
@@ -1,97 +1,100 @@
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-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"user/message","seq":1,"time":0,"data":{"content":[{"type":"text","text":"Run this exact command with your bash tool, then reply with its stdout only: echo dsh-sdk-proof-7391"}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"session/title","seq":2,"time":0,"data":{"title":"Run this exact command with","messageSeqs":[1],"source":{"kind":"fallback"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"agent/inbox/spliced","seq":0,"time":0,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Run this exact command with your bash tool, then reply with its stdout only: echo dsh-sdk-proof-7391"}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"}]}}}}
+{"method":"session.status","params":{"sessionId":"{{sessionId}}","status":"running"}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"agent/inbox/spliced","seq":1,"time":0,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"turn/start","seq":2,"time":0,"data":{"turn":1}}}}
 {"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"step/start","seq":3,"time":0,"data":{"turn":1,"step":1}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"request/header","seq":4,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":5,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":6,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":7,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}}}}
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-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":12,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" a"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" specific"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":14,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" bash"}}}}}
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-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}}}}
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-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":20,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" stdout"}}}}}
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diff --git a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/notifications.expected.jsonl b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/notifications.expected.jsonl
index 074d563844..b40ea93ff9 100644
--- a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/notifications.expected.jsonl
+++ b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/notifications.expected.jsonl
@@ -1,74 +1,77 @@
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diff --git a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/result.expected.json b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/result.expected.json
index 989372e15b..53a1342f7d 100644
--- a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/result.expected.json
+++ b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/result.expected.json
@@ -1 +1 @@
-{"status":"ok","reason":{"kind":"completed"},"finalResponse":"PERSISTENT_TOOLS_OK"}
+{"sessionId":"{{sessionId}}","finalResponse":"PERSISTENT_TOOLS_OK"}
diff --git a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/session.jsonl b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/session.jsonl
index 96abcbdfa8..511c66fc95 100644
--- a/examples/jsonrpc-agent/tests/snapshots/persistent-tools/session.jsonl
+++ b/examples/jsonrpc-agent/tests/snapshots/persistent-tools/session.jsonl
@@ -1,74 +1,76 @@
 {"type":"session","version":0,"id":"persistent-tools-snapshot","createdAt":1785331618309,"cwd":"{{cwd}}","delegationDepth":0}
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index 71462cd4fd..9799e31dc3 100644
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diff --git a/examples/jsonrpc-agent/tests/snapshots/text-turn/notifications.expected.jsonl b/examples/jsonrpc-agent/tests/snapshots/text-turn/notifications.expected.jsonl
index bdec61152e..fd83fef9f5 100644
--- a/examples/jsonrpc-agent/tests/snapshots/text-turn/notifications.expected.jsonl
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-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" OK"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":19,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"\"."}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":20,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" Let"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":21,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":22,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" do"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":23,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" that"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":24,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":25,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":26,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"SD"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":27,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"K"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":28,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":" snapshot"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":29,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":" OK"}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":30,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."}}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":31,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"SDK snapshot OK"}}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":32,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":33,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/message","seq":34,"time":0,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."},{"type":"text","text":"SDK snapshot OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}},"sourceEventSeqs":[5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33],"surfaceOp":"append"}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"step/end","seq":35,"time":0,"data":{"turn":1,"step":1}}}}
-{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"turn/end","seq":36,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}}}}
-{"method":"session.finished","params":{"sessionId":"{{sessionId}}","status":"ok","reason":{"kind":"completed"}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"user/message","seq":4,"time":0,"data":{"content":[{"type":"text","text":"Reply with exactly: SDK snapshot OK"}],"source":{"kind":"user"},"role":"user","id":"{{sessionId}}"},"surfaceOp":"append"}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"session/title","seq":5,"time":0,"data":{"title":"Reply with exactly: SDK snapshot","messageSeqs":[4],"source":{"kind":"fallback"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"request/header","seq":6,"time":0,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":7,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":8,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":9,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":10,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":11,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":12,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":13,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":14,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":15,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":16,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" \""}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":17,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"SD"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":18,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"K"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":19,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" snapshot"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":20,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" OK"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":21,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"\"."}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":22,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" Let"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":23,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":24,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" do"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":25,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" that"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":26,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":27,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":28,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"SD"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":29,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":"K"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":30,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":" snapshot"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":31,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"text-delta","index":1,"text":" OK"}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":32,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."}}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":33,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"SDK snapshot OK"}}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":34,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/chunk","seq":35,"time":0,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"assistant/message","seq":36,"time":0,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."},{"type":"text","text":"SDK snapshot OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"{{sessionId}}"},"usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}},"sourceEventSeqs":[7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35],"surfaceOp":"append"}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"step/end","seq":37,"time":0,"data":{"turn":1,"step":1}}}}
+{"method":"session.event","params":{"sessionId":"{{sessionId}}","event":{"type":"turn/end","seq":38,"time":0,"data":{"turn":1,"reason":{"kind":"completed"}}}}}
+{"method":"session.status","params":{"sessionId":"{{sessionId}}","status":"idle"}}
diff --git a/examples/jsonrpc-agent/tests/snapshots/text-turn/result.expected.json b/examples/jsonrpc-agent/tests/snapshots/text-turn/result.expected.json
index 46cd4334e0..2d7ad76dcc 100644
--- a/examples/jsonrpc-agent/tests/snapshots/text-turn/result.expected.json
+++ b/examples/jsonrpc-agent/tests/snapshots/text-turn/result.expected.json
@@ -1 +1 @@
-{"status":"ok","reason":{"kind":"completed"},"finalResponse":"SDK snapshot OK"}
+{"sessionId":"{{sessionId}}","finalResponse":"SDK snapshot OK"}
diff --git a/examples/jsonrpc-agent/tests/snapshots/text-turn/session.jsonl b/examples/jsonrpc-agent/tests/snapshots/text-turn/session.jsonl
index c4d7ae2c57..7e5ec3618b 100644
--- a/examples/jsonrpc-agent/tests/snapshots/text-turn/session.jsonl
+++ b/examples/jsonrpc-agent/tests/snapshots/text-turn/session.jsonl
@@ -1,17 +1,19 @@
 {"type":"session","version":0,"id":"sdk-snapshot-text","createdAt":1785097381464,"cwd":"{{cwd}}","delegationDepth":0}
-{"type":"turn/start","seq":0,"time":1785097381468,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1785097381469,"data":{"content":[{"type":"text","text":"Reply with exactly: SDK snapshot OK"}],"source":{"kind":"user"},"role":"user","id":"4cb523e7-19c9-45d0-8799-911a78c26207"},"surfaceOp":"append"}
-{"type":"session/title","seq":2,"time":1785097381471,"data":{"title":"Reply with exactly: SDK snapshot","messageSeqs":[1],"source":{"kind":"fallback"}}}
+{"type":"agent/inbox/spliced","seq":0,"time":1785498588575,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Reply with exactly: SDK snapshot OK"}],"source":{"kind":"user"},"role":"user","id":"ae723d9f-6e9e-4a33-8e1d-7f99e2264e1d"}]}}
+{"type":"agent/inbox/spliced","seq":1,"time":1785498588575,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
+{"type":"turn/start","seq":2,"time":1785498588596,"data":{"turn":1}}
 {"type":"step/start","seq":3,"time":1785097381472,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":4,"time":1785097381472,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"assistant/chunk","seq":5,"time":1785097381978,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
-{"type":"reasoning-chunks","seq0":6,"time0":1785097381979,"data":{"turn":1,"step":1,"index":0,"dt":[138,28,27,1,0,0,24,1,0,0,0,26,0,1,25,1,0,0],"texts":["The"," user"," wants"," me"," to"," reply"," with"," exactly"," \"","SD","K"," snapshot"," OK","\"."," Let"," me"," do"," that","."]}}
-{"type":"assistant/chunk","seq":25,"time":1785097382251,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}
-{"type":"text-chunks","seq0":26,"time0":1785097382251,"data":{"turn":1,"step":1,"index":1,"dt":[27,0,1],"texts":["SD","K"," snapshot"," OK"]}}
-{"type":"assistant/chunk","seq":30,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."}}}}
-{"type":"assistant/chunk","seq":31,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"SDK snapshot OK"}}}}
-{"type":"assistant/chunk","seq":32,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}}}}
-{"type":"assistant/chunk","seq":33,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":34,"time":1785097382283,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."},{"type":"text","text":"SDK snapshot OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"11a5f0b8-dd63-4fe6-9dc9-c2fb50600b3f"},"usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}},"sourceEventSeqs":[5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33],"surfaceOp":"append"}
-{"type":"step/end","seq":35,"time":1785097382288,"data":{"turn":1,"step":1}}
-{"type":"turn/end","seq":36,"time":1785097382288,"data":{"turn":1,"reason":{"kind":"completed"}}}
+{"type":"user/message","seq":4,"time":1785498588596,"data":{"content":[{"type":"text","text":"Reply with exactly: SDK snapshot OK"}],"source":{"kind":"user"},"role":"user","id":"ae723d9f-6e9e-4a33-8e1d-7f99e2264e1d"},"surfaceOp":"append"}
+{"type":"session/title","seq":5,"time":1785498588596,"data":{"title":"Reply with exactly: SDK snapshot","messageSeqs":[4],"source":{"kind":"fallback"}}}
+{"type":"request/header","seq":6,"time":1785498588599,"data":{"header":{"config":{"provider":"deepseek-official","model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
+{"type":"assistant/chunk","seq":7,"time":1785097381979,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
+{"type":"reasoning-chunks","seq0":8,"time0":1785097382117,"data":{"turn":1,"step":1,"index":0,"dt":[28,27,1,0,0,24,1,0,0,0,26,0,1,25,1,0,0,0],"texts":["The"," user"," wants"," me"," to"," reply"," with"," exactly"," \"","SD","K"," snapshot"," OK","\"."," Let"," me"," do"," that","."]}}
+{"type":"assistant/chunk","seq":27,"time":1785097382251,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":1,"blockType":"text"}}}
+{"type":"text-chunks","seq0":28,"time0":1785097382278,"data":{"turn":1,"step":1,"index":1,"dt":[0,1,0],"texts":["SD","K"," snapshot"," OK"]}}
+{"type":"assistant/chunk","seq":32,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."}}}}
+{"type":"assistant/chunk","seq":33,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"SDK snapshot OK"}}}}
+{"type":"assistant/chunk","seq":34,"time":1785097382279,"data":{"turn":1,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}}}}
+{"type":"assistant/chunk","seq":35,"time":1785498588608,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":36,"time":1785498588609,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to reply with exactly \"SDK snapshot OK\". Let me do that."},{"type":"text","text":"SDK snapshot OK"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"ded507eb-2edd-4628-a000-4bc8353fd47f"},"usage":{"inputTokens":1769,"outputTokens":24,"cacheReadTokens":0,"reasoningTokens":19}},"sourceEventSeqs":[7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35],"surfaceOp":"append"}
+{"type":"step/end","seq":37,"time":1785498588609,"data":{"turn":1,"step":1}}
+{"type":"turn/end","seq":38,"time":1785498588609,"data":{"turn":1,"reason":{"kind":"completed"}}}
diff --git a/packages/acp/acp/src/index.ts b/packages/acp/acp/src/index.ts
index 925f675c7a..8663391c2b 100644
--- a/packages/acp/acp/src/index.ts
+++ b/packages/acp/acp/src/index.ts
@@ -230,7 +230,7 @@ export function apply(ctx: Context, config: AcpConfig): void {
           await record.agent.whenIdle()
           return { stopReason: inflight.cancelled ? 'cancelled' : 'end_turn' }
         } finally {
-          if (record.inflight === inflight) record.inflight = undefined
+          record.inflight = undefined
         }
       },
 
diff --git a/packages/acp/acp/tests/turns.spec.ts b/packages/acp/acp/tests/turns.spec.ts
index 70067eee05..d596f8766d 100644
--- a/packages/acp/acp/tests/turns.spec.ts
+++ b/packages/acp/acp/tests/turns.spec.ts
@@ -164,6 +164,23 @@ describe('ACP prompt lifecycle', () => {
       .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
   })
 
+  it('cancels autonomous running work without an in-flight prompt', async () => {
+    harness = await makeBridgeHarness({ script: ['hang'] })
+    const sessionId = await newSession(harness)
+    const agent = harness.ctx.agents.get(SessionId(sessionId))!
+    agent.followup(createUserMessage({
+      content: [{ type: 'text', text: 'autonomous work' }],
+      source: { kind: 'plugin', plugin: 'test' },
+    }))
+    await vi.waitFor(() => { expect(agent.status).toBe('running') })
+
+    await harness.client.cancel({ sessionId })
+    await agent.whenIdle()
+
+    expect(agent.session.events.findLast(event => event.type === 'turn/end')?.data.reason)
+      .toEqual({ kind: 'aborted', reason: { kind: 'user' } })
+  })
+
   it('an idle cancel does not affect the following prompt', async () => {
     harness = await makeBridgeHarness({ script: [textResponse('answer')] })
     const sessionId = await newSession(harness)
diff --git a/packages/client/connection/src/client/fixture.ts b/packages/client/connection/src/client/fixture.ts
index 148117b9c8..41a8ae6b3e 100644
--- a/packages/client/connection/src/client/fixture.ts
+++ b/packages/client/connection/src/client/fixture.ts
@@ -502,13 +502,13 @@ function projectionFramesOf(id: SessionId, log: readonly SessionEvent[], event:
     if (!Object.hasOwn(values, 'title')) return []
     return [{ type: 'session/projection', sessionId: id, key: 'title', value: values['title'], seq: event.seq }]
   }
-  // Goal fold: a round-zero goal-sourced user message advances the goal unit.
-  if (type === 'user/message') {
-    const source = (event as unknown as { data?: { source?: { kind?: string; round?: number } } }).data?.source
-    if (source?.kind === 'goal' && source.round === 0) {
+  // Goal fold: inserting a round-zero goal change durably advances the unit;
+  // later admission of the same message must not advance it again.
+  if (type === 'agent/inbox/spliced') {
+    const inserted = (event as unknown as { data: { inserted: UserMessage[] } }).data.inserted
+    if (inserted.some(message => goalChangeOf(message) !== undefined)) {
       return [{ type: 'session/projection', sessionId: id, key: 'goal', value: backscanGoal(log), seq: event.seq }]
     }
-    return []
   }
   // Standing-plan fold: writes replace the list; turn/start clears it (null).
   if (type === 'todo/write' || type === 'turn/start') {
@@ -603,7 +603,7 @@ interface FxGoalProjection {
   updatedAt: number
 }
 
-/** One durable goal change riding a round-zero goal-sourced user message. */
+/** One durable goal change riding a round-zero goal-sourced inbox insertion. */
 type FxGoalChange =
   | { kind: 'goal/change'; version: 1; operation: 'clear'; cleared: { id: string; revision: number }; clearedAt: number }
   | {
@@ -616,6 +616,14 @@ type FxGoalChange =
     updatedAt: number
   }
 
+/** Decode a fixture goal change from its durable inbox message. */
+function goalChangeOf(message: UserMessage): FxGoalChange | undefined {
+  const source = message.source as unknown as { kind?: string; round?: number; change?: FxGoalChange }
+  if (source.kind !== 'goal' || source.round !== 0) return undefined
+  const change = source.change
+  return change?.kind === 'goal/change' ? change : undefined
+}
+
 /**
  * Current goal projection over the full log (host parallel: the GoalService
  * unit's last-wins fold of goal/change whole values; clear returns null).
@@ -624,16 +632,18 @@ function backscanGoal(log: readonly SessionEvent[]): FxGoalProjection | null {
   for (let i = log.length - 1; i >= 0; i--) {
     const event = log[i] as unknown as {
       type: string
-      data?: { source?: { kind?: string; round?: number; change?: FxGoalChange } }
+      data?: { inserted?: UserMessage[] }
     } | undefined
-    if (event === undefined || event.type !== 'user/message') continue
-    const source = event.data?.source
-    if (source?.kind !== 'goal' || source.round !== 0) continue
-    const change = source.change
-    // oxlint-disable-next-line typescript/no-unnecessary-condition
-    if (change === undefined || change.kind !== 'goal/change') continue
-    if (change.operation === 'clear') return null
-    return { goal: change.goal, roundsStarted: change.roundsStarted, createdAt: change.createdAt, updatedAt: change.updatedAt }
+    if (event === undefined || event.type !== 'agent/inbox/spliced') continue
+    const inserted = event.data?.inserted ?? []
+    for (let j = inserted.length - 1; j >= 0; j--) {
+      const message = inserted[j]
+      if (message === undefined) continue
+      const change = goalChangeOf(message)
+      if (change === undefined) continue
+      if (change.operation === 'clear') return null
+      return { goal: change.goal, roundsStarted: change.roundsStarted, createdAt: change.createdAt, updatedAt: change.updatedAt }
+    }
   }
   return null
 }
@@ -869,20 +879,35 @@ export function createFixtureApi(options: FixtureOptions = {}): ApiProxy {
     for (const frame of projectionFramesOf(id, log, event)) emitMux(frame)
   }
 
-  /** Append one goal/change as its round-zero goal-sourced user message (host GoalService parallel). */
+  /** Append one goal/change as its round-zero goal-sourced inbox insertion (host GoalService parallel). */
   const appendGoalChange = (id: SessionId, change: FxGoalChange): FxGoalProjection => {
     const ref = change.operation === 'clear' ? change.cleared : change.goal
     const payload = change.operation === 'clear'
       ? { cleared: change.cleared, clearedAt: change.clearedAt }
       : { goal: change.goal, roundsStarted: change.roundsStarted, createdAt: change.createdAt, updatedAt: change.updatedAt }
+    const log = logOf(id)
+    const pendingNextStep = log.reduce((count, event) => {
+      const inboxEvent = event as unknown as {
+        type: string
+        data: { target: string; removedCount?: number; inserted: UserMessage[] }
+      }
+      if (inboxEvent.type !== 'agent/inbox/spliced' || inboxEvent.data.target !== 'next-step') return count
+      return count - (inboxEvent.data.removedCount ?? 0) + inboxEvent.data.inserted.length
+    }, 0)
     append(id, {
-      type: 'user/message', surfaceOp: 'append',
-      data: userMessage(
-        text(`<goal_state>${JSON.stringify(payload)}</goal_state>`),
-        { kind: 'goal', goalId: ref.id, revision: ref.revision, round: 0, change } as unknown as MessageSource,
-      ),
+      type: 'agent/inbox/spliced',
+      data: {
+        target: 'next-step',
+        start: pendingNextStep,
+        inserted: [
+          userMessage(
+            text(`<goal_state>${JSON.stringify(payload)}</goal_state>`),
+            { kind: 'goal', goalId: ref.id, revision: ref.revision, round: 0, change } as unknown as MessageSource,
+          ),
+        ],
+      },
     })
-    return backscanGoal(logOf(id)) as FxGoalProjection
+    return backscanGoal(log) as FxGoalProjection
   }
 
   /** Shared CAS mutation path of the goal verbs (undefined next = invalid transition). */
diff --git a/packages/client/connection/tests/fixture.spec.ts b/packages/client/connection/tests/fixture.spec.ts
index 6dc8d7cb42..005c0f7f07 100644
--- a/packages/client/connection/tests/fixture.spec.ts
+++ b/packages/client/connection/tests/fixture.spec.ts
@@ -862,6 +862,32 @@ describe('FixtureApiClient (protocol-level fake carrier)', () => {
     // complete → complete is an invalid transition.
     expect((await client.goals.complete({ sessionId: id, ref })).result.ok).toBe(false)
     expect((await client.goals.clear({ sessionId: id, ref })).result).toEqual({ ok: true, value: { cleared: true } })
+
+    const goalHistory = await client.sessions.history({ sessionId: id })
+    if (!goalHistory.result.ok) throw new Error('goal history failed')
+    const goalEvents = goalHistory.result.value.events.map(entry => entry.event as unknown as {
+      type: string
+      data: {
+        target?: string
+        start?: number
+        source?: { kind?: string; round?: number }
+        inserted?: Array<{ source?: { kind?: string; round?: number; change?: { operation?: string } } }>
+      }
+    })
+    const goalSplices = goalEvents.filter(event => event.type === 'agent/inbox/spliced'
+      && event.data.inserted?.some(message => message.source?.kind === 'goal' && message.source.round === 0) === true)
+    expect(goalSplices.map(event => ({ target: event.data.target, start: event.data.start }))).toEqual([
+      { target: 'next-step', start: 0 },
+      { target: 'next-step', start: 1 },
+      { target: 'next-step', start: 2 },
+      { target: 'next-step', start: 3 },
+      { target: 'next-step', start: 4 },
+      { target: 'next-step', start: 5 },
+    ])
+    expect(goalSplices.map(event => event.data.inserted?.[0]?.source?.change?.operation))
+      .toEqual(['create', 'edit', 'pause', 'resume', 'complete', 'clear'])
+    expect(goalEvents.some(event => event.type === 'user/message'
+      && event.data.source?.kind === 'goal' && event.data.source.round === 0)).toBe(false)
   })
 
   it('maps empty, prompt-reject, and workspace-first query scenarios', async () => {
diff --git a/packages/client/ui-goal/README.i18n.yaml b/packages/client/ui-goal/README.i18n.yaml
index 191dade4fa..c988240bce 100644
--- a/packages/client/ui-goal/README.i18n.yaml
+++ b/packages/client/ui-goal/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-goal/README.md
-README.md: 2c109ab1fbe0b566b8749a6af44ec5e0055fe3b2
-README.zh.md: b81113c67566fd834b3ddb10931d4ecc630aa2f9
+README.md: caeaef4db9b1bd82090f1897c1a470a835294a39
+README.zh.md: 60dd661b640d04917ac93c9930e1a4755a5817ff
diff --git a/packages/client/ui-goal/README.md b/packages/client/ui-goal/README.md
index 2c109ab1fb..caeaef4db9 100644
--- a/packages/client/ui-goal/README.md
+++ b/packages/client/ui-goal/README.md
@@ -8,11 +8,11 @@ The `/client` export surface is the plugin body (`apply`/`inject`), the `GoalBar
 
 ## Model Experience
 
-Indirectly, through the `goal.edit`/`goal.pause`/`goal.resume`/`goal.clear` RPCs the strip's verbs submit: each accepted mutation appends a model-visible `goal/change` context message to the session (the same durable event the projection folds), so the model sees the updated goal state on its next turn. The strip itself adds no prompt content.
+Indirectly, through the `goal.edit`/`goal.pause`/`goal.resume`/`goal.clear` RPCs the strip's verbs submit: each accepted mutation commits in a durable `agent/inbox/spliced` insertion, which the goal projection folds immediately, and queues a `goal/change` context message. The model sees that context only if a later pre-step admits it; discarding the queued message does not roll back the projected state. The strip itself adds no prompt content.
 
 #### KV Cache effect
 
-None beyond the goal mutation's own context event, which appends to the log tail like any other message.
+None unless the queued goal context is admitted. An admitted context extends the history tail like any other message; an insertion discarded before admission does not affect the cache.
 
 ## Known Limitations and Deferred Work
 
diff --git a/packages/client/ui-goal/README.zh.md b/packages/client/ui-goal/README.zh.md
index b81113c675..60dd661b64 100644
--- a/packages/client/ui-goal/README.zh.md
+++ b/packages/client/ui-goal/README.zh.md
@@ -8,11 +8,11 @@ Goal 表面插件（浏览器半件）：`GoalBar` 条带是 `conversation.input
 
 ## Model Experience
 
-间接影响：条带动词提交的 `goal.edit`/`goal.pause`/`goal.resume`/`goal.clear` RPC 每次被接受后，会向会话追加一条模型可见的 `goal/change` 上下文消息（与投影折叠的正是同一条持久事件），模型在下一轮即可看到更新后的 goal 状态。条带自身不添加任何提示词内容。
+间接影响：条带动词提交的 `goal.edit`/`goal.pause`/`goal.resume`/`goal.clear` RPC 每次被接受后，变更都会在持久 `agent/inbox/spliced` 插入项中提交，goal 投影会立即折叠该插入项，同时将一条 `goal/change` 上下文消息排队。只有后续 pre-step 准入该上下文时，模型才会看到它；丢弃已排队的消息不会回滚投影状态。条带自身不添加任何提示词内容。
 
 #### KV Cache effect
 
-除 goal 变更自身的上下文事件（如同任何消息一样追加在日志尾部）外无额外影响。
+除非已排队的 goal 上下文获准，否则没有影响。获准的上下文会像其他消息一样扩展历史尾部；准入前被丢弃的插入项不会影响缓存。
 
 ## Known Limitations and Deferred Work
 
diff --git a/packages/context/time-context/tests/invariant.spec.ts b/packages/context/time-context/tests/invariant.spec.ts
index 059b809e52..35beb67406 100644
--- a/packages/context/time-context/tests/invariant.spec.ts
+++ b/packages/context/time-context/tests/invariant.spec.ts
@@ -137,6 +137,9 @@ describe('time-context invariants', () => {
     const ended = preparing(1, 1)
     ended.append('step/end', { turn: 1, step: 1 })
     expect(() => { ctx.emit('session/event', ended, event(reading())) }).toThrow(/at a prompt boundary/)
+    const notEntered = new Session(SessionId('time-invariant-turn-only'))
+    notEntered.append('turn/start', { turn: 1 })
+    expect(() => { ctx.emit('session/event', notEntered, event(reading())) }).toThrow(/at a prompt boundary/)
     expect(() => {
       ctx.emit('session/event', new Session(SessionId('time-invariant-empty')), event(reading()))
     }).toThrow(/at a prompt boundary/)
diff --git a/packages/context/workspace-context/src/index.ts b/packages/context/workspace-context/src/index.ts
index 322ba800bf..86e7388f46 100644
--- a/packages/context/workspace-context/src/index.ts
+++ b/packages/context/workspace-context/src/index.ts
@@ -2,35 +2,28 @@
  * Workspace instruction loader for AGENTS.md-compatible files.
  *
  * Baseline instructions enter durable context before the first request; successful fs
- * tool touches reconcile nested, changed, and removed instructions through
- * `tools/post-execute` for the next model request. Plugin lifecycle reads use
+ * tool touches mark nested, changed, and removed instructions for reconciliation
+ * at the next pre-step. Plugin lifecycle reads use
  * the optional `ctx.fs` provider, so providerless products mount it as a no-op.
  *
  * @module @deepseek-ai/dsh-workspace-context
  */
 
 import type { Context } from 'cordis'
+import { isDeepStrictEqual } from 'node:util'
 import type { Agent, PreStepDecision } from '@deepseek-ai/dsh-agent'
-import { createUserMessage, type MessageId } from '@deepseek-ai/dsh-llm'
+import { createUserMessage } from '@deepseek-ai/dsh-llm'
 import type { UserMessage } from '@deepseek-ai/dsh-session'
-import type { PostToolDecision, ToolExecution, ToolExecutionResult, ToolExecutionToken } from '@deepseek-ai/dsh-tools'
+import type { ToolExecution, ToolExecutionResult, ToolExecutionToken } from '@deepseek-ai/dsh-tools'
 import { Config, resolveConfig, type ResolvedConfig } from './config.ts'
 import { loadBaselineInstructionSet } from './files.ts'
 import {
   applyInstructionVersionUpdates,
   baselineInstructionState,
-  commitPendingInstructionContexts,
-  dynamicInstructionContext,
   name,
-  observeInstructionSessionEvent,
   reconcileInstructionContext,
-  retainedInstructionVersionUpdates,
-  rollbackPendingInstructionChanges,
   workspaceContextMessage,
   type InstructionVersionCache,
-  type InstructionVersionState,
-  type InstructionVersionUpdate,
-  type PendingInstructionChange,
 } from './state.ts'
 import type { WorkspaceInstructionChange } from './render.ts'
 
@@ -55,200 +48,198 @@ function hasVisibleBaseline(agent: Agent): boolean {
   })
 }
 
+function isWorkspaceContext(message: UserMessage): boolean {
+  return message.source.kind === 'workspace-instructions'
+}
+
+function sameContextPayload(left: UserMessage, right: UserMessage): boolean {
+  return isDeepStrictEqual(left.content, right.content)
+    && isDeepStrictEqual(left.source, right.source)
+}
+
+const FILE_TOUCH_TOOL_NAMES = new Set(['read', 'write', 'edit'])
+
+function filePathFromExecution(exec: ToolExecution): string | undefined {
+  if (!FILE_TOUCH_TOOL_NAMES.has(exec.name)) return undefined
+  if (typeof exec.arguments !== 'object' || exec.arguments === null) return undefined
+  if (!('file_path' in exec.arguments) || typeof exec.arguments.file_path !== 'string') return undefined
+  const filePath = exec.arguments.file_path.trim()
+  return filePath.length > 0 ? filePath : undefined
+}
+
 export function apply(ctx: Context, config: Config): void {
   const resolved: ResolvedConfig = resolveConfig(config)
-  const pendingNestedChanges = new WeakMap<object, Map<string, PendingInstructionChange>>()
-  const baselineSessions = new WeakSet<object>()
   const instructionVersions: InstructionVersionCache = new WeakMap()
-  const pendingVersionUpdates = new Map<ToolExecutionToken, InstructionVersionUpdate[]>()
-  const baselineLoaded = new WeakSet<object>()
-  const pendingBaselineCommits = new WeakMap<object, {
-    messageIds: Set<MessageId>
-    versions: Map<string, InstructionVersionState>
-  }>()
-  // Sessions whose lifecycle start this mount witnessed. A startup or resume
-  // emits agent/session-start before the first step; a hot remount attaches to
-  // an already-live session and never sees it. Resumes always re-compose the
-  // baseline from current files. Hot remounts retain a baseline only while its
-  // typed event remains model-visible.
-  const lifecycleWitnessed = new WeakSet<object>()
-  const pendingByParent = new Map<ToolExecutionToken, {
-    agent: Agent
-    changes: WorkspaceInstructionChange[]
-    versionUpdates: InstructionVersionUpdate[]
-  }>()
+  const pendingTouches = new Map<ToolExecutionToken, { agent: Agent; paths: Set<string> }>()
+  const touchedPaths = new WeakMap<Agent, Set<string>>()
 
-  ctx.on('agent/session-start', (agent: Agent) => {
-    lifecycleWitnessed.add(agent.session)
-  })
+  const compose = async (
+    agent: Agent,
+    signal: AbortSignal,
+    claimed: readonly UserMessage[],
+    pending: readonly UserMessage[],
+    touchedPaths: readonly string[] = [],
+  ): Promise<{
+    desired?: UserMessage
+    versions: Map<string, import('./state.ts').InstructionVersionState>
+  }> => {
+    signal.throwIfAborted()
+    const candidateVersions: InstructionVersionCache = new WeakMap()
+    const candidateVersionStates = new Map(instructionVersions.get(agent.session) ?? [])
+    candidateVersions.set(agent.session, candidateVersionStates)
+    if (resolved.maxBytes <= 0 || !Number.isFinite(resolved.maxBytes)) {
+      return { versions: new Map() }
+    }
+    const fileSystem = ctx.get('fs')
+    if (fileSystem === undefined) return { versions: new Map() }
+    const content: UserMessage['content'][number][] = []
+    const changes: WorkspaceInstructionChange[] = []
+    let desiredBaseline = false
+    const authorityMessages = [...claimed]
+    const baselinePresent = hasVisibleBaseline(agent) || claimed.some(message =>
+      message.source.kind === 'workspace-instructions' && message.source.baseline === true)
+    if (!baselinePresent) {
+      /* v8 ignore next -- normal agents carry an absolute session cwd. */
+      const cwd = agent.session.header.cwd ?? process.cwd()
+      const instructions = await loadBaselineInstructionSet({
+        cwd,
+        dshHome: resolved.dshHome,
+        projectRootMarkers: resolved.projectRootMarkers,
+        maxBytes: resolved.maxBytes,
+        maxSourceBytes: resolved.maxSourceBytes,
+        instructionFileCandidates: resolved.instructionFileCandidates,
+        localInstructionFileCandidates: resolved.localInstructionFileCandidates,
+        signal,
+      }, fileSystem)
+      const baseline = baselineInstructionState(instructions?.included ?? [])
+      for (const [scope, state] of baseline.versions) candidateVersionStates.set(scope, state)
+      if (instructions !== undefined && instructions.rendered.text.length > 0) {
+        content.push(...workspaceContextMessage(instructions.rendered.text).content)
+        changes.push(...baseline.changes.values())
+        desiredBaseline = true
+      }
+    }
+    const update = await reconcileInstructionContext(
+      agent,
+      resolved,
+      candidateVersions,
+      fileSystem,
+      { authorityMessages, scopeMessages: pending, includeBaselineScopes: baselinePresent, touchedPaths, signal },
+    )
+    if (update !== undefined) {
+      content.push(...update.context.content)
+      /* v8 ignore next -- reconciliation constructs only workspace-instructions contexts. */
+      if (update.context.source.kind === 'workspace-instructions') {
+        changes.push(...update.context.source.changes)
+      }
+      applyInstructionVersionUpdates(agent.session, update.versionUpdates, candidateVersions)
+    }
+    const versions = new Map(candidateVersions.get(agent.session) ?? [])
+    return content.length === 0
+      ? { versions }
+      : {
+        desired: createUserMessage({
+          content,
+          source: {
+            kind: 'workspace-instructions',
+            ...desiredBaseline ? { baseline: true } : {},
+            changes,
+          },
+        }),
+        versions,
+      }
+  }
 
-  ctx.on('session/event', (session, event) => {
-    observeInstructionSessionEvent(session, event, pendingNestedChanges, instructionVersions)
-    const pending = pendingBaselineCommits.get(session)
-    if (pending === undefined || event.type !== 'user/message'
-      || !pending.messageIds.delete(event.data.id) || pending.messageIds.size > 0) return
-    baselineSessions.add(session)
-    if (pending.versions.size === 0) instructionVersions.delete(session)
-    else instructionVersions.set(session, pending.versions)
-    baselineLoaded.add(session)
-    pendingBaselineCommits.delete(session)
-  })
+  const syncInbox = (agent: Agent, claimed: readonly UserMessage[], desired: UserMessage | undefined): void => {
+    const pending = agent.inbox.nextStep.filter(isWorkspaceContext)
+    const alreadySupplied = desired !== undefined && (
+      claimed.some(message => sameContextPayload(message, desired))
+      || agent.session.surface.nodes.some((seq) => {
+        const event = agent.session.events[seq]
+        return event?.type === 'user/message' && sameContextPayload(event.data, desired)
+      })
+    )
+    if (desired === undefined || alreadySupplied) {
+      for (const message of pending) agent.inbox.remove('next-step', message.id)
+      return
+    }
+    const reusable = pending.find(message => sameContextPayload(message, desired))
+    if (reusable !== undefined) {
+      for (const message of pending) {
+        if (message !== reusable) agent.inbox.remove('next-step', message.id)
+      }
+      return
+    }
+    const replaced = pending[0]
+    if (replaced === undefined) agent.inbox.prepend('next-step', desired)
+    else agent.inbox.update('next-step', replaced.id, desired)
+    for (const message of pending.slice(1)) agent.inbox.remove('next-step', message.id)
+  }
+
+  const commitSync = (
+    agent: Agent,
+    claimed: readonly UserMessage[],
+    desired: UserMessage | undefined,
+    versions: Map<string, import('./state.ts').InstructionVersionState>,
+  ): void => {
+    syncInbox(agent, claimed, desired)
+    if (versions.size === 0) instructionVersions.delete(agent.session)
+    else instructionVersions.set(agent.session, versions)
+  }
+
+  const restoreTouchedPaths = (agent: Agent, paths: Set<string> | undefined): void => {
+    if (paths === undefined || paths.size === 0) return
+    const current = touchedPaths.get(agent)
+    if (current === undefined) touchedPaths.set(agent, paths)
+    else for (const path of paths) current.add(path)
+  }
 
   ctx.on('agent/pre-step', async (
     agent: Agent,
-    _messages,
+    messages,
     { signal },
     next,
   ): Promise<PreStepDecision> => {
     const decision = await next()
-    if (signal.aborted || baselineLoaded.has(agent.session)) return decision
-    const previous = pendingBaselineCommits.get(agent.session)
-    if (decision.kind === 'enter' && previous !== undefined
-      && [...previous.messageIds].every(id => decision.messages.some(message => message.id === id))) {
+    const pending = agent.inbox.nextStep.filter(isWorkspaceContext)
+    const paths = touchedPaths.get(agent)
+    touchedPaths.delete(agent)
+    try {
+      const composed = await compose(agent, signal, messages, pending, [...paths ?? []])
+      /* v8 ignore next 4 -- every awaited filesystem operation checks this signal before settling. */
+      if (signal.aborted) {
+        restoreTouchedPaths(agent, paths)
+        return decision
+      }
+      commitSync(agent, messages, composed.desired, composed.versions)
       return decision
-    }
-    if (previous !== undefined) {
-      for (const id of previous.messageIds) agent.inbox.remove('next-step', id)
-      pendingBaselineCommits.delete(agent.session)
-    }
-    if (resolved.maxBytes <= 0 || !Number.isFinite(resolved.maxBytes)) {
-      baselineLoaded.add(agent.session)
-      pendingBaselineCommits.delete(agent.session)
-      return decision
-    }
-    const fileSystem = ctx.get('fs')
-    if (fileSystem === undefined) {
-      baselineLoaded.add(agent.session)
-      pendingBaselineCommits.delete(agent.session)
-      return decision
-    }
-    /* v8 ignore next -- normal agents carry an absolute session cwd. */
-    const cwd = agent.session.header.cwd ?? process.cwd()
-    const instructions = await loadBaselineInstructionSet({
-      cwd,
-      dshHome: resolved.dshHome,
-      projectRootMarkers: resolved.projectRootMarkers,
-      maxBytes: resolved.maxBytes,
-      maxSourceBytes: resolved.maxSourceBytes,
-      instructionFileCandidates: resolved.instructionFileCandidates,
-      localInstructionFileCandidates: resolved.localInstructionFileCandidates,
-      signal,
-    }, fileSystem)
-    const baseline = baselineInstructionState(instructions?.included ?? [])
-    const candidateVersions: InstructionVersionCache = new WeakMap()
-    candidateVersions.set(agent.session, new Map(baseline.versions))
-    const contexts: UserMessage[] = []
-
-    const update = await reconcileInstructionContext(
-      agent,
-      resolved,
-      pendingNestedChanges,
-      candidateVersions,
-      fileSystem,
-      { includeBaselineScopes: false, signal },
-    )
-    if (update !== undefined) {
-      contexts.push(update.context)
-      applyInstructionVersionUpdates(agent.session, update.versionUpdates, candidateVersions)
-    }
-    const keepVisibleBaseline = !lifecycleWitnessed.has(agent.session) && hasVisibleBaseline(agent)
-    if (!keepVisibleBaseline && instructions !== undefined && instructions.rendered.text.length > 0) {
-      const baselineMessage = workspaceContextMessage(instructions.rendered.text)
-      contexts.push(createUserMessage({
-        content: baselineMessage.content,
-        source: {
-          kind: 'workspace-instructions',
-          baseline: true,
-          changes: [...baseline.changes.values()],
-        },
-      }))
-    }
-    const versions = candidateVersions.get(agent.session)
-      ?? new Map<string, InstructionVersionState>()
-    if (contexts.length === 0) {
-      baselineSessions.add(agent.session)
-      if (versions.size === 0) instructionVersions.delete(agent.session)
-      else instructionVersions.set(agent.session, versions)
-      baselineLoaded.add(agent.session)
-      pendingBaselineCommits.delete(agent.session)
-      return decision
-    }
-    pendingBaselineCommits.set(agent.session, {
-      messageIds: new Set(contexts.map(context => context.id)),
-      versions,
-    })
-    for (const context of contexts.toReversed()) {
-      agent.inbox.prepend('next-step', context)
-    }
-    return decision
-  })
-
-  ctx.on('tools/post-execute', async (
-    exec: ToolExecution,
-    result: ToolExecutionResult,
-    next,
-  ): Promise<PostToolDecision> => {
-    const downstream = await next()
-    // A downstream listener/policy blocked this call: the registry turns it
-    // into a final `isError` result, so treat it like a failed fs touch and
-    // load nothing. Reconciling here would surface workspace instructions from
-    // a call the pipeline rejected, violating the "successful fs tool touches"
-    // contract, and would advance the nested/baseline tracking state off a
-    // touch that never really happened.
-    if (downstream.kind === 'block') return downstream
-    const fileSystem = ctx.get('fs')
-    if (fileSystem === undefined) return downstream
-    const update = await dynamicInstructionContext(
-      exec.agent,
-      exec,
-      result,
-      resolved,
-      pendingNestedChanges,
-      baselineSessions,
-      instructionVersions,
-      fileSystem,
-    )
-    if (update === undefined) return downstream
-    pendingVersionUpdates.set(exec.token, update.versionUpdates)
-    return {
-      ...downstream,
-      additionalContexts: [update.context, ...downstream.additionalContexts ?? []],
+    } catch (error: unknown) {
+      restoreTouchedPaths(agent, paths)
+      throw error
     }
   })
 
   ctx.on('tools/result', (exec: ToolExecution, result: ToolExecutionResult) => {
-    const ownVersionUpdates = pendingVersionUpdates.get(exec.token) ?? []
-    pendingVersionUpdates.delete(exec.token)
+    const staged = pendingTouches.get(exec.token)
+    pendingTouches.delete(exec.token)
     if (exec.parent !== undefined) {
-      if (exec.agent === undefined) return
-      // Child contexts participate in duplicate suppression within one composite
-      // run, but remain provisional until the parent reaches its final policy.
-      const changes = commitPendingInstructionContexts(exec.agent, result.additionalContexts, pendingNestedChanges)
-      if (changes.length === 0) return
-      const versionUpdates = retainedInstructionVersionUpdates(ownVersionUpdates, changes)
-      const staged = pendingByParent.get(exec.parent)
-      if (staged === undefined) pendingByParent.set(exec.parent, { agent: exec.agent, changes, versionUpdates })
-      else {
-        staged.changes.push(...changes)
-        staged.versionUpdates.push(...versionUpdates)
+      const paths = new Set(staged?.paths ?? [])
+      const ownPath = result.isError ? undefined : filePathFromExecution(exec)
+      if (ownPath !== undefined) paths.add(ownPath)
+      if (!result.isError && exec.agent !== undefined && paths.size > 0) {
+        const parent = pendingTouches.get(exec.parent)
+        if (parent === undefined) pendingTouches.set(exec.parent, { agent: exec.agent, paths })
+        else for (const path of paths) parent.paths.add(path)
       }
       return
     }
-
-    // The parent result is authoritative: remove every provisional child change,
-    // then commit only contexts that survived outer post-execute policy.
-    const staged = pendingByParent.get(exec.token)
-    if (staged !== undefined) {
-      pendingByParent.delete(exec.token)
-      rollbackPendingInstructionChanges(staged.agent, staged.changes, pendingNestedChanges)
-    }
-    if (exec.agent === undefined) return
-    const committed = commitPendingInstructionContexts(exec.agent, result.additionalContexts, pendingNestedChanges)
-    const stagedVersionUpdates = staged?.versionUpdates ?? []
-    const versionUpdates = retainedInstructionVersionUpdates(
-      [...stagedVersionUpdates, ...ownVersionUpdates],
-      committed,
-    )
-    applyInstructionVersionUpdates(exec.agent.session, versionUpdates, instructionVersions)
+    if (result.isError || exec.agent === undefined) return
+    const paths = new Set(staged?.paths ?? [])
+    const ownPath = filePathFromExecution(exec)
+    if (ownPath !== undefined) paths.add(ownPath)
+    if (paths.size === 0) return
+    const pending = touchedPaths.get(exec.agent)
+    if (pending === undefined) touchedPaths.set(exec.agent, paths)
+    else for (const path of paths) pending.add(path)
   })
 }
diff --git a/packages/context/workspace-context/src/state.ts b/packages/context/workspace-context/src/state.ts
index 7bb24a43b2..200b145d21 100644
--- a/packages/context/workspace-context/src/state.ts
+++ b/packages/context/workspace-context/src/state.ts
@@ -7,9 +7,8 @@
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import { createUserMessage } from '@deepseek-ai/dsh-llm'
 import type { Message } from '@deepseek-ai/dsh-llm'
-import type { Session, SessionEvent, UserMessage } from '@deepseek-ai/dsh-session'
+import type { Session, UserMessage } from '@deepseek-ai/dsh-session'
 import type { FileSystem, FsVersion } from '@deepseek-ai/dsh-fs'
-import type { ToolExecution, ToolExecutionResult } from '@deepseek-ai/dsh-tools'
 import type { ResolvedConfig } from './config.ts'
 import { instructionContentSha1, trimmedInstructionDigest } from './digest.ts'
 import {
@@ -34,8 +33,6 @@ import {
 
 export const name = 'workspace-context'
 
-const FILE_TOUCH_TOOL_NAMES = new Set(['read', 'write', 'edit'])
-
 /** Durable provenance and reconciliation facts for one workspace context. */
 export interface WorkspaceInstructionSource {
   kind: 'workspace-instructions'
@@ -50,13 +47,6 @@ declare module '@deepseek-ai/dsh-llm' {
   }
 }
 
-/** Dynamic state waiting for the loop to append its returned context event. */
-export interface PendingInstructionChange {
-  change: WorkspaceInstructionChange
-  afterSeq: number
-  step?: { turn: number; step: number }
-}
-
 /** Per-scope metadata cache; instruction prose is deliberately not retained. */
 export interface InstructionVersionState {
   path: string
@@ -103,14 +93,6 @@ export function workspaceContextMessage(text: string): Message {
   })
 }
 
-function filePathFromExecution(exec: ToolExecution): string | undefined {
-  if (!FILE_TOUCH_TOOL_NAMES.has(exec.name)) return undefined
-  if (typeof exec.arguments !== 'object' || exec.arguments === null) return undefined
-  if (!('file_path' in exec.arguments) || typeof exec.arguments.file_path !== 'string') return undefined
-  const filePath = exec.arguments.file_path.trim()
-  return filePath.length > 0 ? filePath : undefined
-}
-
 function isWorkspaceContextSource(
   source: unknown,
 ): source is { kind: 'workspace-instructions'; changes: unknown[] } {
@@ -149,7 +131,7 @@ function sameInstructionChange(a: WorkspaceInstructionChange, b: WorkspaceInstru
 
 function visibleInstructionChanges(
   agent: Agent,
-  pending: Map<string, PendingInstructionChange>,
+  authorityMessages: readonly UserMessage[],
 ): Map<string, WorkspaceInstructionChange> {
   const visibleSeqs = new Set(agent.session.surface.nodes)
   const visible = new Map<string, WorkspaceInstructionChange>()
@@ -157,14 +139,15 @@ function visibleInstructionChanges(
     if (event.type !== 'user/message' || !isWorkspaceContextSource(event.data.source)) continue
     const changes = workspaceInstructionChanges(event.data.source)
     for (const change of changes) {
-      const waiting = pending.get(change.scope)
-      if (waiting !== undefined && seq >= waiting.afterSeq && sameInstructionChange(waiting.change, change)) {
-        pending.delete(change.scope)
-      }
       if (visibleSeqs.has(seq)) visible.set(change.scope, change)
     }
   }
-  for (const { change } of pending.values()) visible.set(change.scope, change)
+  for (const message of authorityMessages) {
+    if (!isWorkspaceContextSource(message.source)) continue
+    for (const change of workspaceInstructionChanges(message.source)) {
+      visible.set(change.scope, change)
+    }
+  }
   return visible
 }
 
@@ -242,164 +225,35 @@ export function applyInstructionVersionUpdates(
   if (states.size === 0) cache.delete(session)
 }
 
-function pendingChangesFor(
-  session: object,
-  pendingBySession: WeakMap<object, Map<string, PendingInstructionChange>>,
-): Map<string, PendingInstructionChange> {
-  let pending = pendingBySession.get(session)
-  if (pending === undefined) {
-    pending = new Map()
-    pendingBySession.set(session, pending)
-  }
-  return pending
-}
-
-function openStep(session: Session): { turn: number; step: number } | undefined {
-  const boundary = session.events.findLast(event => event.type === 'step/start' || event.type === 'step/end')
-  return boundary?.type === 'step/start' ? boundary.data : undefined
-}
-
-function invalidateInstructionVersions(
-  session: Session,
-  scopes: readonly string[],
-  cache: InstructionVersionCache,
-): void {
-  const states = cache.get(session)
-  if (states === undefined) return
-  for (const scope of scopes) states.delete(scope)
-  if (states.size === 0) cache.delete(session)
-}
-
-/**
- * Settle provisional tool-result state against durable session events.
- * A matching context event confirms the transition. If its owning step closes
- * first, both duplicate suppression and the metadata fast path are re-armed for
- * the next successful touch.
- * @param session - session whose append-only log emitted `event`.
- * @param event - newly committed session event.
- * @param pendingBySession - provisional transitions awaiting log confirmation.
- * @param versionCache - metadata fast path coupled to those transitions.
- */
-export function observeInstructionSessionEvent(
-  session: Session,
-  event: SessionEvent,
-  pendingBySession: WeakMap<object, Map<string, PendingInstructionChange>>,
-  versionCache: InstructionVersionCache,
-): void {
-  const pending = pendingBySession.get(session)
-  if (pending === undefined) return
-
-  switch (event.type) {
-    case 'user/message': {
-      if (!isWorkspaceContextSource(event.data.source)) return
-      for (const change of workspaceInstructionChanges(event.data.source)) {
-        const waiting = pending.get(change.scope)
-        if (waiting !== undefined && event.seq >= waiting.afterSeq && sameInstructionChange(waiting.change, change)) {
-          pending.delete(change.scope)
-        }
-      }
-      if (pending.size === 0) pendingBySession.delete(session)
-      return
-    }
-    case 'step/end': {
-      const discardedScopes: string[] = []
-      for (const [scope, waiting] of pending) {
-        const step = waiting.step
-        if (step === undefined || step.turn !== event.data.turn || step.step !== event.data.step) continue
-        pending.delete(scope)
-        discardedScopes.push(scope)
-      }
-      if (pending.size === 0) pendingBySession.delete(session)
-      invalidateInstructionVersions(session, discardedScopes, versionCache)
-      return
-    }
-    default:
-      // SessionEventMap is merge-extensible; unrelated events do not settle workspace state.
-      return
-  }
-}
-
-/**
- * Commit only workspace contexts that survived the complete tool pipeline.
- * The observe-only `tools/result` notification calls this before the loop can
- * append the returned contexts, closing that short pending window without
- * trusting an intermediate post-execute decision.
- * @param agent - session that will receive the final result contexts.
- * @param contexts - immutable contexts on the authoritative top-level result.
- * @param pendingBySession - per-session pending transition maps.
- * @returns transitions committed into the short pending window.
- */
-export function commitPendingInstructionContexts(
-  agent: Agent,
-  contexts: readonly UserMessage[] | undefined,
-  pendingBySession: WeakMap<object, Map<string, PendingInstructionChange>>,
-): WorkspaceInstructionChange[] {
-  const committed: WorkspaceInstructionChange[] = []
-  const step = openStep(agent.session)
-  for (const context of contexts ?? []) {
-    if (!isWorkspaceContextSource(context.source)) continue
-    const changes = workspaceInstructionChanges(context.source)
-    if (changes.length === 0) continue
-    const pending = pendingChangesFor(agent.session, pendingBySession)
-    for (const change of changes) {
-      pending.set(change.scope, {
-        change,
-        afterSeq: agent.session.seq,
-        ...step === undefined ? {} : { step },
-      })
-      committed.push(change)
-    }
-  }
-  return committed
-}
-
-/**
- * Roll back parent-token state when an enclosing tool result discards deferred
- * contexts. A newer transition for the same scope is left intact.
- * @param agent - session whose pending state was staged.
- * @param changes - exact staged transitions to remove when still current.
- * @param pendingBySession - per-session pending transition maps.
- */
-export function rollbackPendingInstructionChanges(
-  agent: Agent,
-  changes: readonly WorkspaceInstructionChange[],
-  pendingBySession: WeakMap<object, Map<string, PendingInstructionChange>>,
-): void {
-  const pending = pendingBySession.get(agent.session)
-  if (pending === undefined) return
-  for (const change of changes) {
-    const current = pending.get(change.scope)
-    if (current !== undefined && sameInstructionChange(current.change, change)) pending.delete(change.scope)
-  }
-  if (pending.size === 0) pendingBySession.delete(agent.session)
-}
-
 function relativeScope(projectRoot: string, dir: string): string {
   const scope = relativeDisplay(projectRoot, dir)
   return scope.length === 0 ? '.' : scope
 }
 
 /**
- * Compare visible/pending state with provider-visible files and render transitions.
+ * Compare visible state with provider-visible files and render transitions.
  * @param agent - session owner whose visible surface supplies durable state.
  * @param resolved - normalized plugin configuration.
- * @param pendingBySession - short pending window before returned context is logged.
  * @param versionCache - per-session scope metadata used to skip unchanged reads.
  * @param fileSystem - provider used for current file probes.
- * @param options - touched path and whether baseline scopes should participate.
+ * @param options - authoritative claimed context, pending scope hints, touched paths, and baseline participation.
  * @returns rendered context plus deferred cache updates, or undefined when unchanged/unavailable.
  */
 export async function reconcileInstructionContext(
   agent: Agent,
   resolved: ResolvedConfig,
-  pendingBySession: WeakMap<object, Map<string, PendingInstructionChange>>,
   versionCache: InstructionVersionCache,
   fileSystem: FileSystem,
-  options: { touchedPath?: string; includeBaselineScopes: boolean; signal?: AbortSignal },
+  options: {
+    authorityMessages: readonly UserMessage[]
+    scopeMessages: readonly UserMessage[]
+    touchedPaths: readonly string[]
+    includeBaselineScopes: boolean
+    signal?: AbortSignal
+  },
 ): Promise<ReconciledInstructionContext | undefined> {
   const session = agent.session
-  const pending = pendingChangesFor(session, pendingBySession)
-  const effective = visibleInstructionChanges(agent, pending)
+  const effective = visibleInstructionChanges(agent, options.authorityMessages)
   /* v8 ignore next -- normal agents carry an absolute session cwd. */
   const cwd = session.header.cwd ?? process.cwd()
   // TODO(frozen-project-root): retain the baseline root for the loop instance;
@@ -419,14 +273,22 @@ export async function reconcileInstructionContext(
   if (options.includeBaselineScopes) {
     for (const scope of baselineScopes) scopes.add(scope)
   }
+  for (const message of options.scopeMessages) {
+    /* v8 ignore next -- the plugin passes its workspace-only pending projection. */
+    if (!isWorkspaceContextSource(message.source)) continue
+    for (const change of workspaceInstructionChanges(message.source)) {
+      if (!options.includeBaselineScopes && baselineScopes.has(change.scope)) continue
+      scopes.add(change.scope)
+    }
+  }
   for (const scope of effective.keys()) {
     if (!options.includeBaselineScopes && baselineScopes.has(scope)) continue
     const { directory } = decodeScopeKey(scope)
     if (directory === USER_GLOBAL_DIRECTORY) scopes.add(candidateScopeKey(USER_GLOBAL_DIRECTORY, USER_GLOBAL_FILE))
     else addDirScopes(scopes, directory)
   }
-  if (options.touchedPath !== undefined) {
-    for (const dir of descendantDirsBetween(cwd, options.touchedPath)) addProjectScopes(scopes, dir)
+  for (const touchedPath of options.touchedPaths) {
+    for (const dir of descendantDirsBetween(cwd, touchedPath)) addProjectScopes(scopes, dir)
   }
 
   const versions = versionStatesFor(session, versionCache)
@@ -452,116 +314,97 @@ export async function reconcileInstructionContext(
     items.push({ change, file: { absolutePath: `removed:${scope}`, displayPath: path, content: '' } })
     versionUpdates.push({ change })
   }
+  const scopesByDirectory = new Map<string, string[]>()
   for (const scope of scopes) {
     const { directory } = decodeScopeKey(scope)
-    const previous = effective.get(scope)
-    const probe = await probeScopeInstruction(scope, projectRoot, resolved, fileSystem, options.signal)
-    if (probe.kind === 'unavailable') {
-      // Last-good-state: the candidate stays effective, so its cached trimmed
-      // digest must keep occupying the directory's dedup slot — otherwise an
-      // identical later sibling would be emitted as a duplicate `set` until the
-      // next successful reconciliation removed it again.
-      const cached = versions.get(scope)
-      if (cached !== undefined && previous !== undefined && previous.action !== 'remove') {
-        registerKeptTrimmed(directory, cached.trimmedDigest)
+    const directoryScopes = scopesByDirectory.get(directory)
+    if (directoryScopes === undefined) scopesByDirectory.set(directory, [scope])
+    else directoryScopes.push(scope)
+  }
+  for (const [directory, directoryScopes] of scopesByDirectory) {
+    const itemStart = items.length
+    const versionUpdateStart = versionUpdates.length
+    const addedAbsolutePaths: string[] = []
+    const priorVersions = new Map(directoryScopes.map(scope => [scope, versions.get(scope)]))
+    for (const scope of directoryScopes) {
+      const previous = effective.get(scope)
+      const probe = await probeScopeInstruction(scope, projectRoot, resolved, fileSystem, options.signal)
+      if (probe.kind === 'unavailable') {
+        if (previous === undefined || previous.action === 'remove') continue
+        // Same-directory candidates form one deduplicated authority group. If an
+        // active member cannot be observed, preserve the entire last-good group;
+        // cache warmth must never decide whether a sibling transition is emitted.
+        items.splice(itemStart)
+        versionUpdates.splice(versionUpdateStart)
+        for (const [candidateScope, prior] of priorVersions) {
+          if (prior === undefined) versions.delete(candidateScope)
+          else versions.set(candidateScope, prior)
+        }
+        for (const absolutePath of addedAbsolutePaths) seenAbsolutePaths.delete(absolutePath)
+        keptTrimmedByDir.delete(directory)
+        break
+      }
+      if (probe.kind === 'absent') {
+        if (previous === undefined || previous.action === 'remove') versions.delete(scope)
+        else pushRemoval(scope, previous.path)
+        continue
+      }
+      const { file: probedFile } = probe
+      if (seenAbsolutePaths.has(probedFile.absolutePath)) continue
+      seenAbsolutePaths.add(probedFile.absolutePath)
+      addedAbsolutePaths.push(probedFile.absolutePath)
+      const cached = versions.get(scope)
+      if (
+        cached !== undefined
+        && cached.path === probedFile.displayPath
+        && cached.version === probedFile.version
+        && previous !== undefined
+        && previous.action !== 'remove'
+        && previous.path === cached.path
+        && previous.digest === cached.digest
+      ) {
+        // Unchanged and previously rendered: keep it, but an earlier sibling that
+        // now matches its trimmed content makes this the duplicate to remove.
+        if (registerKeptTrimmed(directory, cached.trimmedDigest)) pushRemoval(scope, previous.path)
+        continue
       }
-      continue
-    }
-    if (probe.kind === 'absent') {
-      if (previous === undefined || previous.action === 'remove') versions.delete(scope)
-      else pushRemoval(scope, previous.path)
-      continue
-    }
-    const { file: probedFile } = probe
-    if (seenAbsolutePaths.has(probedFile.absolutePath)) continue
-    seenAbsolutePaths.add(probedFile.absolutePath)
-    const cached = versions.get(scope)
-    if (
-      cached !== undefined
-      && cached.path === probedFile.displayPath
-      && cached.version === probedFile.version
-      && previous !== undefined
-      && previous.action !== 'remove'
-      && previous.path === cached.path
-      && previous.digest === cached.digest
-    ) {
-      // Unchanged and previously rendered: keep it, but an earlier sibling that
-      // now matches its trimmed content makes this the duplicate to remove.
-      if (registerKeptTrimmed(directory, cached.trimmedDigest)) pushRemoval(scope, previous.path)
-      continue
-    }
 
-    const file = await readScopeInstruction(probedFile, resolved.maxSourceBytes, fileSystem, options.signal)
-    if (file === undefined) continue
-    const currentDigest = instructionContentSha1(file.content)
-    const trimmedDigest = trimmedInstructionDigest(file.content)
-    if (registerKeptTrimmed(directory, trimmedDigest)) {
-      // A distinct file whose trimmed content already appeared earlier in this
-      // directory: drop it, removing any copy that was previously rendered.
-      if (previous !== undefined && previous.action !== 'remove') pushRemoval(scope, previous.path)
-      else versions.delete(scope)
-      continue
+      const file = await readScopeInstruction(probedFile, resolved.maxSourceBytes, fileSystem, options.signal)
+      if (file === undefined) continue
+      const currentDigest = instructionContentSha1(file.content)
+      const trimmedDigest = trimmedInstructionDigest(file.content)
+      if (registerKeptTrimmed(directory, trimmedDigest)) {
+        // A distinct file whose trimmed content already appeared earlier in this
+        // directory: drop it, removing any copy that was previously rendered.
+        if (previous !== undefined && previous.action !== 'remove') pushRemoval(scope, previous.path)
+        else versions.delete(scope)
+        continue
+      }
+      const nextVersion: InstructionVersionState = {
+        path: file.displayPath,
+        version: probedFile.version,
+        digest: currentDigest,
+        trimmedDigest,
+      }
+      if (previous !== undefined && previous.action !== 'remove' && previous.path === file.displayPath && previous.digest === currentDigest) {
+        versions.set(scope, nextVersion)
+        continue
+      }
+      const action = previous === undefined || previous.action === 'remove' ? 'set' : 'replace'
+      const change: WorkspaceInstructionChange = {
+        action,
+        scope,
+        path: file.displayPath,
+        digest: currentDigest,
+      }
+      items.push({ change, file })
+      versionUpdates.push({ change, state: nextVersion })
     }
-    const nextVersion: InstructionVersionState = {
-      path: file.displayPath,
-      version: probedFile.version,
-      digest: currentDigest,
-      trimmedDigest,
-    }
-    if (previous !== undefined && previous.action !== 'remove' && previous.path === file.displayPath && previous.digest === currentDigest) {
-      versions.set(scope, nextVersion)
-      continue
-    }
-    const action = previous === undefined || previous.action === 'remove' ? 'set' : 'replace'
-    const change: WorkspaceInstructionChange = {
-      action,
-      scope,
-      path: file.displayPath,
-      digest: currentDigest,
-    }
-    items.push({ change, file })
-    versionUpdates.push({ change, state: nextVersion })
   }
   if (items.length === 0) return undefined
   const rendered = renderInstructionChanges(items, resolved.maxBytes)
-  if (rendered.text.length === 0 || rendered.changes.length === 0) return undefined
   return {
     context: workspaceContextHook(rendered.text, rendered.changes),
     versionUpdates: retainedInstructionVersionUpdates(versionUpdates, rendered.changes),
   }
 }
-
-/**
- * Validate a successful structured file touch and reconcile its applicable scopes.
- * @param agent - optional agent attached to the tool execution.
- * @param exec - completed tool execution descriptor.
- * @param result - original tool result before post-execute decisions.
- * @param resolved - normalized plugin configuration.
- * @param pendingNestedChanges - per-session pending transition maps.
- * @param baselineSessions - sessions whose configured baseline scopes should be probed.
- * @param versionCache - per-session scope metadata used to skip unchanged reads.
- * @param fileSystem - provider used for current file probes.
- * @returns rendered context plus deferred cache updates, or undefined for irrelevant/failed/unchanged calls.
- */
-export async function dynamicInstructionContext(
-  agent: Agent | undefined,
-  exec: ToolExecution,
-  result: ToolExecutionResult,
-  resolved: ResolvedConfig,
-  pendingNestedChanges: WeakMap<object, Map<string, PendingInstructionChange>>,
-  baselineSessions: WeakSet<object>,
-  versionCache: InstructionVersionCache,
-  fileSystem: FileSystem,
-): Promise<ReconciledInstructionContext | undefined> {
-  if (agent === undefined || result.isError) return undefined
-  const touchedPath = filePathFromExecution(exec)
-  if (touchedPath === undefined) return undefined
-  return reconcileInstructionContext(
-    agent, resolved, pendingNestedChanges, versionCache, fileSystem,
-    {
-      touchedPath,
-      includeBaselineScopes: baselineSessions.has(agent.session),
-      signal: exec.signal,
-    },
-  )
-}
diff --git a/packages/context/workspace-context/tests/workspace-context.spec.ts b/packages/context/workspace-context/tests/workspace-context.spec.ts
index 8a714748bd..e5b164e407 100644
--- a/packages/context/workspace-context/tests/workspace-context.spec.ts
+++ b/packages/context/workspace-context/tests/workspace-context.spec.ts
@@ -34,13 +34,12 @@ import {
   renderWorkspaceContext,
 } from '@deepseek-ai/dsh-workspace-context'
 import {
+  applyInstructionVersionUpdates,
   baselineInstructionState,
-  commitPendingInstructionContexts,
-  observeInstructionSessionEvent,
-  rollbackPendingInstructionChanges,
+  reconcileInstructionContext,
   type InstructionVersionCache,
-  type PendingInstructionChange,
 } from '../src/state.ts'
+import { resolveConfig } from '../src/config.ts'
 import { candidateScopeKey, renderInstructionChanges } from '../src/render.ts'
 import { MockAdapter, textResponse, toolCallResponse } from '../../../core/agent-loop/tests/mock-adapter.ts'
 
@@ -198,9 +197,26 @@ function blocksText(blocks: { type: string; text?: string }[] | undefined): stri
   return blocks?.map(block => block.type === 'text' ? block.text ?? '' : '').join('\n') ?? ''
 }
 
-function workspaceContextOf(result: { additionalContexts?: UserMessage[] }): UserMessage | undefined {
-  return result.additionalContexts?.find(context =>
-    context.source.kind === 'workspace-instructions')
+async function workspaceContextOf(agent: Agent): Promise<UserMessage> {
+  return vi.waitFor(() => {
+    const context = agent.inbox.nextStep.find(message =>
+      message.source.kind === 'workspace-instructions')
+    expect(context).toBeDefined()
+    return context!
+  })
+}
+
+async function syncWorkspaceContext(ctx: Context, agent: Agent): Promise<void> {
+  await agentEvents(ctx, agent).waterfall(
+    'agent/pre-step', [],
+    { turn: 1, step: 1, signal: testToolSignal },
+    async () => ({ kind: 'enter' as const, messages: [] }),
+  )
+}
+
+async function syncedWorkspaceContext(ctx: Context, agent: Agent): Promise<UserMessage> {
+  await syncWorkspaceContext(ctx, agent)
+  return workspaceContextOf(agent)
 }
 
 function baselineEvents(agent: Agent): SessionEvent[] {
@@ -220,10 +236,14 @@ function workspaceChangeContext(scope: string, digest: string): UserMessage {
   })
 }
 
-function appendAdditionalContexts(agent: Agent, result: { additionalContexts?: UserMessage[] }): number | undefined {
+async function appendAdditionalContexts(ctx: Context, agent: Agent): Promise<number | undefined> {
+  await syncedWorkspaceContext(ctx, agent)
   let lastSeq: number | undefined
-  for (const context of result.additionalContexts ?? []) {
-    lastSeq = agent.session.append('user/message', context, { surfaceOp: 'append' }).seq
+  for (const claimed of agent.inbox.claim('next-step')) {
+    if (claimed.source.kind !== 'workspace-instructions') continue
+    const event = agent.session.append('user/message', claimed, { surfaceOp: 'append' })
+    ctx.emit('session/event', agent.session, event)
+    lastSeq = event.seq
   }
   return lastSeq
 }
@@ -897,89 +917,6 @@ describe('workspace context request injection', () => {
     }
   })
 
-  it('leaves post-execute decisions unchanged when no filesystem provider is present', async () => {
-    const ctx = new Context()
-    try {
-      await ctx.plugin(workspaceContext, { maxBytes: 65536 })
-
-      const decision = await ctx.waterfall('tools/post-execute', stubToolExecution({
-        signal: testToolSignal,
-        callId: CallId('no-fs-post-execute'),
-        name: 'read',
-        arguments: { file_path: join('pkg', 'file.txt') },
-        agent: stubAgent('/virtual/repo'),
-      }), {
-        isError: false,
-        value: null,
-        content: [{ type: 'text', text: 'file content' }],
-      }, async () => ({
-        kind: 'accept',
-        content: [{ type: 'text', text: 'downstream content' }],
-      }))
-
-      expect(decision).toEqual({ kind: 'accept', content: [{ type: 'text', text: 'downstream content' }] })
-    } finally {
-      await ctx.fiber.dispose()
-    }
-  })
-
-  it('does not load workspace instructions when a downstream listener blocks the tool call', async () => {
-    const root = await tempRepo()
-    const home = await tempRepo()
-    const ctx = new Context()
-    try {
-      await ctx.plugin(SystemPrompt)
-      await ctx.plugin(ToolRegistry)
-      await ctx.plugin(RecordingFileSystem)
-      const fs = ctx.fs as RecordingFileSystem
-      fs.entries.set(join(root, '.git'), { type: 'directory' })
-      fs.entries.set(join(root, 'pkg/AGENTS.md'), { type: 'file', content: 'nested package rule' })
-      fs.entries.set(join(root, 'pkg/file.txt'), { type: 'file', content: 'hello' })
-      await ctx.plugin(ToolFs)
-      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
-      const agent = stubAgent(root)
-
-      const exec = stubToolExecution({
-        signal: testToolSignal,
-        callId: CallId('read-blocked-post-execute'),
-        name: 'read',
-        arguments: { file_path: join('pkg', 'file.txt') },
-        agent,
-      })
-      const result = {
-        isError: false as const,
-        value: null,
-        content: [{ type: 'text' as const, text: 'hello' }],
-      }
-
-      // A later PostToolUse-style policy blocks this otherwise-successful read.
-      const blocked = await ctx.waterfall('tools/post-execute', exec, result, async () => ({
-        kind: 'block' as const,
-        feedback: [{ type: 'text' as const, text: 'blocked by policy' }],
-      }))
-
-      expect(blocked).toEqual({
-        kind: 'block',
-        feedback: [{ type: 'text', text: 'blocked by policy' }],
-      })
-      expect(blocked.additionalContexts).toBeUndefined()
-
-      // The same read, when the downstream accepts, DOES surface the nested
-      // instructions — proving the block branch above is what suppressed them,
-      // and that the block did not consume the pending nested change.
-      const accepted = await ctx.waterfall('tools/post-execute', exec, result, async () => ({
-        kind: 'accept' as const,
-      }))
-      expect(accepted.kind).toBe('accept')
-      expect(workspaceContextOf(accepted)?.source).toMatchObject({ kind: 'workspace-instructions' })
-      expect(blocksText(workspaceContextOf(accepted)?.content)).toContain('nested package rule')
-    } finally {
-      await ctx.fiber.dispose()
-      await rm(root, { recursive: true, force: true })
-      await rm(home, { recursive: true, force: true })
-    }
-  })
-
   it('contributes baseline instructions through durable injected history', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
@@ -1040,6 +977,226 @@ describe('workspace context request injection', () => {
     }
   })
 
+  it('reuses an inserted but unadmitted baseline after session recovery and plugin reload', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'AGENTS.md'), 'repo rule')
+      const ctx = new Context()
+      const fiber = await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const original = stubAgent(root)
+      await agentEvents(ctx, original).waterfall(
+        'agent/pre-step',
+        [],
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: [] }),
+      )
+      const inserted = original.inbox.nextStep[0]
+      expect(inserted?.source).toMatchObject({ kind: 'workspace-instructions', baseline: true })
+
+      await fiber.dispose()
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const resumed = stubAgent(root, [...original.session.events])
+      agentEvents(ctx, resumed).emit('agent/session-start', 'resume')
+      const claimed = resumed.inbox.claim('next-step')
+      const decision = await agentEvents(ctx, resumed).waterfall(
+        'agent/pre-step',
+        claimed,
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: claimed }),
+      )
+      if (decision.kind !== 'enter') throw new Error('recovered baseline was rejected')
+      for (const message of decision.messages) {
+        const event = resumed.session.append('user/message', message, { surfaceOp: 'append' })
+        ctx.emit('session/event', resumed.session, event)
+      }
+
+      expect(decision.messages.map(message => message.id)).toEqual([inserted?.id])
+      expect(resumed.inbox.nextStep).toEqual([])
+      expect(resumed.session.events.filter(event => event.type === 'agent/inbox/spliced'
+        && event.data.inserted.some(message => message.source.kind === 'workspace-instructions'
+          && message.source.baseline === true))).toHaveLength(1)
+      expect(baselineEvents(resumed)).toHaveLength(1)
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it('replaces a recovered unadmitted baseline when its source changed offline', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'AGENTS.md'), 'old repo rule')
+      const ctx = new Context()
+      const fiber = await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const original = stubAgent(root)
+      await agentEvents(ctx, original).waterfall(
+        'agent/pre-step',
+        [],
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: [] }),
+      )
+      const stale = original.inbox.nextStep[0]
+      expect(blocksText(stale?.content)).toContain('old repo rule')
+
+      await write(join(root, 'AGENTS.md'), 'new repo rule')
+      await fiber.dispose()
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const resumed = stubAgent(root, [...original.session.events])
+      agentEvents(ctx, resumed).emit('agent/session-start', 'resume')
+      const staleClaim = resumed.inbox.claim('next-step')
+      const staleDecision = await agentEvents(ctx, resumed).waterfall(
+        'agent/pre-step',
+        staleClaim,
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: staleClaim }),
+      )
+
+      expect(staleDecision).toEqual({ kind: 'enter', messages: staleClaim })
+      expect(resumed.inbox.nextStep).toHaveLength(1)
+      const replacement = resumed.inbox.nextStep[0]
+      expect(replacement?.id).not.toBe(stale?.id)
+      expect(blocksText(replacement?.content)).toContain('new repo rule')
+      expect(blocksText(replacement?.content)).not.toContain('old repo rule')
+
+      const replacementClaim = resumed.inbox.claim('next-step')
+      const replacementDecision = await agentEvents(ctx, resumed).waterfall(
+        'agent/pre-step',
+        replacementClaim,
+        { turn: 1, step: 2, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: replacementClaim }),
+      )
+      if (replacementDecision.kind !== 'enter') throw new Error('replacement baseline was rejected')
+      for (const message of replacementDecision.messages) {
+        const event = resumed.session.append('user/message', message, { surfaceOp: 'append' })
+        ctx.emit('session/event', resumed.session, event)
+      }
+      expect(baselineEvents(resumed)).toHaveLength(0)
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it.each([
+    { label: 'baseline loading is disabled', maxBytes: 0, provideFs: true },
+    { label: 'the filesystem provider is unavailable', maxBytes: 65536, provideFs: false },
+  ])('does not requeue recovered workspace contexts when $label', async ({ maxBytes, provideFs }) => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    const originalCtx = new Context()
+    const resumedCtx = new Context()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'AGENTS.md'), 'repo rule')
+      await mountWorkspaceContext(originalCtx, { dshHome: home, maxBytes: 65536 })
+      const original = stubAgent(root)
+      await agentEvents(originalCtx, original).waterfall(
+        'agent/pre-step',
+        [],
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: [] }),
+      )
+      const stale = original.inbox.nextStep[0]
+      expect(stale?.source).toMatchObject({ kind: 'workspace-instructions', baseline: true })
+
+      await originalCtx.fiber.dispose()
+      if (provideFs) await resumedCtx.plugin(LocalFileSystem, { cwd: '/' })
+      await resumedCtx.plugin(workspaceContext, { dshHome: home, maxBytes })
+      const resumed = stubAgent(root, [...original.session.events])
+      agentEvents(resumedCtx, resumed).emit('agent/session-start', 'resume')
+      const claimed = resumed.inbox.claim('next-step')
+      const decision = await agentEvents(resumedCtx, resumed).waterfall(
+        'agent/pre-step',
+        claimed,
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve({ kind: 'enter' as const, messages: claimed }),
+      )
+
+      expect(claimed.map(message => message.id)).toEqual([stale?.id])
+      expect(decision).toEqual({ kind: 'enter', messages: claimed })
+      expect(resumed.inbox.nextStep).toEqual([])
+    } finally {
+      await originalCtx.fiber.dispose()
+      await resumedCtx.fiber.dispose()
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it('queues and records a removal for stale visible nested context', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      const ctx = new Context()
+      await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      agent.session.append('user/message', createUserMessage({
+        content: [{ type: 'text', text: 'stale nested instructions' }],
+        source: {
+          kind: 'workspace-instructions',
+          changes: [{ action: 'set', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md'), digest: 'stale' }],
+        },
+      }), {
+        surfaceOp: 'append',
+      })
+
+      await composeBaselinePrefix(ctx, agent)
+
+      const removal = agent.session.events.find(event => event.type === 'user/message'
+        && event.data.source.kind === 'workspace-instructions'
+        && event.data.source.changes.some(change => change.action === 'remove'))
+      expect(removal?.type === 'user/message' ? removal.data.source : undefined).toMatchObject({
+        changes: [{ action: 'remove', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
+      })
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it('combines startup reconciliation and baseline into one durable inbox context', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'AGENTS.md'), 'repo rule')
+      const ctx = new Context()
+      await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      agent.session.append('user/message', createUserMessage({
+        content: [{ type: 'text', text: 'stale nested instructions' }],
+        source: {
+          kind: 'workspace-instructions',
+          changes: [{ action: 'set', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md'), digest: 'stale' }],
+        },
+      }), {
+        surfaceOp: 'append',
+      })
+
+      await composeBaselinePrefix(ctx, agent)
+
+      const workspaceEvents = agent.session.events.filter(event => event.type === 'user/message'
+        && event.data.source.kind === 'workspace-instructions')
+      expect(workspaceEvents).toHaveLength(2)
+      expect(workspaceEvents.some(event => event.type === 'user/message'
+        && event.data.source.kind === 'workspace-instructions'
+        && event.data.source.changes.some(change => change.action === 'remove'))).toBe(true)
+      expect(baselineEvents(agent)).toHaveLength(1)
+
+      await composeBaselinePrefix(ctx, agent)
+      expect(agent.session.events.filter(event => event.type === 'user/message'
+        && event.data.source.kind === 'workspace-instructions')).toHaveLength(2)
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
   it('leaves the current pre-step batch unchanged while queuing the baseline', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
@@ -1053,15 +1210,16 @@ describe('workspace context request injection', () => {
         content: [{ type: 'text', text: 'current prompt' }],
         source: { kind: 'user' },
       })
+      const downstream = { kind: 'enter' as const, messages: [prompt] }
 
       const decision = await agentEvents(ctx, agent).waterfall(
         'agent/pre-step',
         [prompt],
         { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
-        () => Promise.resolve({ kind: 'enter' as const, messages: [prompt] }),
+        () => Promise.resolve(downstream),
       )
 
-      expect(decision).toEqual({ kind: 'enter', messages: [prompt] })
+      expect(decision).toBe(downstream)
       expect(agent.inbox.nextStep).toHaveLength(1)
       expect(blocksText(agent.inbox.nextStep[0]?.content)).toContain('Instructions from: AGENTS.md')
     } finally {
@@ -1070,30 +1228,27 @@ describe('workspace context request injection', () => {
     }
   })
 
-  it('retries a baseline contribution removed by an outer pre-step listener', async () => {
+  it('queues the desired workspace context when the current step is rejected', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
     try {
       await mkdir(join(root, '.git'), { recursive: true })
       await write(join(root, 'AGENTS.md'), 'repo rule')
       const ctx = new Context()
-      const removeBaseline = ctx.on('agent/pre-step', async (_agent, _messages, _context, next) => {
-        const decision = await next()
-        return decision.kind === 'reject'
-          ? decision
-          : {
-            ...decision,
-            messages: decision.messages.filter(message =>
-              message.source.kind !== 'workspace-instructions'),
-          }
-      })
       await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
+      const downstream = { kind: 'reject' as const }
 
-      expect(await composeBaselinePrefix(ctx, agent)).toEqual([])
-      removeBaseline()
-      expect(blocksText((await composeBaselinePrefix(ctx, agent))[0]?.content))
-        .toContain('Instructions from: AGENTS.md')
+      const decision = await agentEvents(ctx, agent).waterfall(
+        'agent/pre-step',
+        [],
+        { turn: 1, step: 1, signal: AbortSignal.timeout(1000) },
+        () => Promise.resolve(downstream),
+      )
+
+      expect(decision).toBe(downstream)
+      expect(agent.inbox.nextStep).toHaveLength(1)
+      expect(blocksText(agent.inbox.nextStep[0]?.content)).toContain('repo rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -1121,14 +1276,14 @@ describe('workspace context request injection', () => {
       expect(baselineEvents(agent)).toHaveLength(1)
 
       await write(join(root, 'AGENTS.md'), 'updated repo rule')
-      const update = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-remount'),
         name: 'read',
         arguments: { file_path: 'file.txt' },
         agent,
       })
-      expect(workspaceContextOf(update)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'replace', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' }],
       })
     } finally {
@@ -1197,8 +1352,9 @@ describe('workspace context request injection', () => {
       await composeBaselinePrefix(ctx, resumed)
 
       const baselines = baselineEvents(resumed)
-      expect(baselines).toHaveLength(2)
-      const latest = baselines.at(-1)
+      expect(baselines).toHaveLength(1)
+      const latest = resumed.session.events.findLast(event =>
+        event.type === 'user/message' && event.data.source.kind === 'workspace-instructions')
       expect(latest?.type === 'user/message' && blocksText(latest.data.content))
         .toContain('new root rule after offline edit')
       const original0 = baselines[0]
@@ -1263,7 +1419,7 @@ describe('workspace context request injection', () => {
     }
   })
 
-  it('appends a replacement when a frozen baseline file changes before a later fs tool call', async () => {
+  it('queues a replacement when a frozen baseline file changes before a later fs tool call', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
     try {
@@ -1276,23 +1432,23 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
       await write(join(root, 'AGENTS.md'), 'new root rule with more detail')
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-baseline-change'), name: 'read', arguments: { file_path: 'file.txt' }, agent,
       })
 
-      expect(workspaceContextOf(result)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'replace', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' }],
       })
-      expect(blocksText(workspaceContextOf(result)?.content)).toContain('Updated instructions from: AGENTS.md')
-      expect(blocksText(workspaceContextOf(result)?.content)).toContain('new root rule with more detail')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('Updated instructions from: AGENTS.md')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('new root rule with more detail')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
     }
   })
 
-  it('appends a removal when a frozen baseline file is deleted before a later fs tool call', async () => {
+  it('queues a removal when a frozen baseline file is deleted before a later fs tool call', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
     try {
@@ -1305,15 +1461,15 @@ describe('workspace context request injection', () => {
 
       await composeBaselinePrefix(ctx, agent)
       await rm(join(root, 'AGENTS.md'))
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-baseline-remove'), name: 'read', arguments: { file_path: 'file.txt' }, agent,
       })
 
-      expect(workspaceContextOf(result)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'remove', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' }],
       })
-      expect(blocksText(workspaceContextOf(result)?.content)).toContain('Instructions removed: AGENTS.md')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('Instructions removed: AGENTS.md')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -1325,19 +1481,13 @@ describe('workspace context request injection', () => {
     try {
       await mkdir(join(root, '.git'), { recursive: true })
       await write(join(root, 'AGENTS.md'), 'shared root and global rule')
-      await write(join(root, 'file.txt'), 'hello')
       const ctx = new Context()
-      await mountFileToolsAndWorkspaceContext(ctx, { dshHome: root, maxBytes: 65536 })
+      await mountWorkspaceContext(ctx, { dshHome: root, maxBytes: 65536 })
       const agent = stubAgent(root)
 
       await composeBaselinePrefix(ctx, agent)
-      const result = await ctx.tools.execute({
-        signal: testToolSignal,
-        callId: CallId('read-with-shared-global-root'), name: 'read', arguments: { file_path: 'file.txt' }, agent,
-      })
 
       expect(derivedText(agent).match(/shared root and global rule/g)).toHaveLength(1)
-      expect(result.additionalContexts).toBeUndefined()
     } finally {
       await rm(root, { recursive: true, force: true })
     }
@@ -1497,7 +1647,7 @@ describe('workspace context request injection', () => {
       const prefix = await composeBaselinePrefix(ctx, stubAgent(root))
 
       expect(prefix).toEqual([])
-      expect(fs.readTargets).toEqual([instructionPath])
+      expect(fs.readTargets).toEqual([instructionPath, instructionPath])
       expect(fs.readTextTargets).toEqual([])
     } finally {
       await ctx.fiber.dispose()
@@ -1964,7 +2114,7 @@ describe('dynamic nested workspace context injection', () => {
       // successful read discovers and durably injects it once.
       expect(contexts).toHaveLength(1)
       expect(adapter.requests).toHaveLength(3)
-      expect(adapter.requests[2]?.messages.map(blocks => blocksText(blocks.content)).join('\n'))
+      expect(adapter.requests.at(-1)?.messages.map(blocks => blocksText(blocks.content)).join('\n'))
         .toContain('nested rule survives an aborted tool batch')
     } finally {
       await ctx.fiber.dispose()
@@ -1989,7 +2139,23 @@ describe('dynamic nested workspace context injection', () => {
     expect(state.versions).toEqual(new Map())
   })
 
-  it('propagates the tool execution signal into dynamic filesystem reconciliation', async () => {
+  it('creates and releases version-cache state only for non-empty updates', () => {
+    const agent = stubAgent('/repo')
+    const cache: InstructionVersionCache = new WeakMap()
+    const change = { action: 'set' as const, scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md', digest: 'digest' }
+    applyInstructionVersionUpdates(agent.session, [], cache)
+    expect(cache.get(agent.session)).toBeUndefined()
+
+    applyInstructionVersionUpdates(agent.session, [{
+      change,
+      state: { path: 'AGENTS.md', version: FsVersion('v1'), digest: 'digest', trimmedDigest: 'trimmed' },
+    }], cache)
+    expect(cache.get(agent.session)?.has(change.scope)).toBe(true)
+    applyInstructionVersionUpdates(agent.session, [{ change: { ...change, action: 'remove' } }], cache)
+    expect(cache.get(agent.session)).toBeUndefined()
+  })
+
+  it('does not refresh dynamic instructions after the tool signal is aborted', async () => {
     const root = join(await tempRepo(), 'virtual-repo')
     const home = join(await tempRepo(), 'virtual-home')
     const ctx = new Context()
@@ -2010,14 +2176,15 @@ describe('dynamic nested workspace context injection', () => {
         signal: controller.signal,
       })
 
-      const pending = ctx.waterfall('tools/post-execute', exec, {
+      ctx.emit('tools/result', exec, {
         content: [{ type: 'text', text: 'ok' }],
         isError: false,
         value: null,
-      }, () => Promise.resolve({ kind: 'accept' as const }))
+      })
 
-      await expect(pending).rejects.toBe(reason)
-      expect(fs.signals).toContain(controller.signal)
+      await Promise.resolve()
+      expect(fs.signals).toEqual([])
+      expect(exec.agent?.inbox.nextStep).toEqual([])
     } finally {
       await ctx.fiber.dispose()
       await rm(dirname(root), { recursive: true, force: true })
@@ -2046,35 +2213,26 @@ describe('dynamic nested workspace context injection', () => {
       })
 
       expect(result.isError).toBe(false)
-      expect(workspaceContextOf(result)?.source).toMatchObject({ kind: 'workspace-instructions' })
-      expect(workspaceContextOf(result)?.source).toMatchObject({
-        kind: 'workspace-instructions',
-        changes: [{
-          action: 'set',
-          scope: sk('pkg', 'AGENTS.md'),
-          path: join('pkg', 'AGENTS.md'),
-        }],
-      })
-      const source = workspaceContextOf(result)?.source
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({ kind: 'workspace-instructions' })
+      const queuedSource = ((await syncedWorkspaceContext(ctx, agent))).source
+      expect(queuedSource).toMatchObject({ kind: 'workspace-instructions' })
+      expect(queuedSource.kind === 'workspace-instructions' && queuedSource.changes.some(change =>
+        change.action === 'set'
+        && change.scope === sk('pkg', 'AGENTS.md')
+        && change.path === join('pkg', 'AGENTS.md'))).toBe(true)
+      const source = ((await syncedWorkspaceContext(ctx, agent))).source
       const firstChange = source?.kind === 'workspace-instructions'
-        ? source.changes[0]
+        ? source.changes.find(change => change.scope === sk('pkg', 'AGENTS.md'))
         : undefined
       const changeDigest = typeof firstChange === 'object' && firstChange !== null && !Array.isArray(firstChange)
         ? firstChange.digest
         : undefined
       expect(changeDigest).toMatch(/^[a-f0-9]{40}$/)
-      const text = blocksText(workspaceContextOf(result)?.content)
-      expect(text).toBe([
-        '<system-reminder>',
-        `Additional instructions from: ${join('pkg', 'AGENTS.md')}`,
-        '',
-        'These instructions apply to work under `pkg`. Use them as guidance when relevant; more specific instructions take precedence. They do not override system, developer, or direct user instructions.',
-        '',
-        'nested package rule',
-        '</system-reminder>',
-      ].join('\n'))
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
+      expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
+      expect(text).toContain('nested package rule')
       expect(text).not.toContain('<workspace-context')
-      expect(text).not.toContain('baseline root rule')
+      expect(text).toContain('baseline root rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2095,16 +2253,17 @@ describe('dynamic nested workspace context injection', () => {
         maxBytes: 65536,
         instructionFileCandidates: ['CLAUDE.local.md', 'AGENTS.md', 'CLAUDE.md'],
       })
+      const agent = stubAgent(root)
 
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-configured-nested-candidate'),
         name: 'read',
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
-        agent: stubAgent(root),
+        agent,
       })
 
-      const text = blocksText(workspaceContextOf(result)?.content)
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'CLAUDE.local.md')}`)
       expect(text).toContain('local package rule')
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
@@ -2127,16 +2286,17 @@ describe('dynamic nested workspace context injection', () => {
       await write(join(root, 'pkg/deep/file.txt'), 'hello')
       const ctx = new Context()
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
 
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-nested-overlay'),
         name: 'read',
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
-        agent: stubAgent(root),
+        agent,
       })
 
-      const source = workspaceContextOf(result)?.source
+      const source = ((await syncedWorkspaceContext(ctx, agent))).source
       const changes = source?.kind === 'workspace-instructions'
         ? source.changes
         : []
@@ -2144,7 +2304,7 @@ describe('dynamic nested workspace context injection', () => {
         expect.objectContaining({ action: 'set', path: join('pkg', 'AGENTS.md') }),
         expect.objectContaining({ action: 'set', path: join('pkg', 'AGENTS.local.md') }),
       ]))
-      const text = blocksText(workspaceContextOf(result)?.content)
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
       expect(text).toContain('nested base rule')
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.local.md')}`)
@@ -2169,16 +2329,17 @@ describe('dynamic nested workspace context injection', () => {
         maxBytes: 65536,
         localInstructionFileCandidates: [],
       })
+      const agent = stubAgent(root)
 
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-nested-overlay-disabled'),
         name: 'read',
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
-        agent: stubAgent(root),
+        agent,
       })
 
-      const text = blocksText(workspaceContextOf(result)?.content)
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
       expect(text).not.toContain(join('pkg', 'AGENTS.local.md'))
     } finally {
@@ -2205,6 +2366,7 @@ describe('dynamic nested workspace context injection', () => {
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
         agent,
       })
+      await appendAdditionalContexts(ctx, agent)
       const second = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-nested-2'),
@@ -2213,8 +2375,9 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
 
-      expect(first.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
       expect(second.additionalContexts).toBeUndefined()
+      expect(agent.inbox.nextStep).toEqual([])
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2243,13 +2406,13 @@ describe('dynamic nested workspace context injection', () => {
         signal: testToolSignal,
         callId: CallId('read-before-version-fast-path'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       const second = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-with-version-fast-path'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(first.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
       expect(second.additionalContexts).toBeUndefined()
       expect(fs.readTargets.filter(path => path === instructionPath)).toHaveLength(1)
     } finally {
@@ -2276,16 +2439,17 @@ describe('dynamic nested workspace context injection', () => {
       await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-same-digest-version-change'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       fs.entries.set(instructionPath, { type: 'file', content: 'same package rule', version: FsVersion('revision-2') })
       const afterVersionChange = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-same-digest-version-change'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
+      await syncWorkspaceContext(ctx, agent)
       const afterRefresh = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-version-cache-refresh'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
@@ -2293,7 +2457,9 @@ describe('dynamic nested workspace context injection', () => {
 
       expect(afterVersionChange.additionalContexts).toBeUndefined()
       expect(afterRefresh.additionalContexts).toBeUndefined()
-      expect(fs.readTargets.filter(path => path === instructionPath)).toHaveLength(2)
+      await vi.waitFor(() => {
+        expect(fs.readTargets.filter(path => path === instructionPath)).toHaveLength(2)
+      })
     } finally {
       await ctx.fiber.dispose()
       await rm(dirname(root), { recursive: true, force: true })
@@ -2317,17 +2483,21 @@ describe('dynamic nested workspace context injection', () => {
       await ctx.plugin(ToolFs)
       await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
 
+      const firstAgent = stubAgent(root)
+      const secondAgent = stubAgent(root)
       const first = await ctx.tools.execute({
         signal: testToolSignal,
-        callId: CallId('read-from-first-session'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent: stubAgent(root),
+        callId: CallId('read-from-first-session'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent: firstAgent,
       })
       const second = await ctx.tools.execute({
         signal: testToolSignal,
-        callId: CallId('read-from-second-session'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent: stubAgent(root),
+        callId: CallId('read-from-second-session'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent: secondAgent,
       })
 
-      expect(first.additionalContexts).toBeDefined()
-      expect(second.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
+      expect(second.additionalContexts).toBeUndefined()
+      expect(((await syncedWorkspaceContext(ctx, firstAgent))).source.kind).toBe('workspace-instructions')
+      expect(((await syncedWorkspaceContext(ctx, secondAgent))).source.kind).toBe('workspace-instructions')
       expect(fs.readTargets.filter(path => path === instructionPath)).toHaveLength(2)
     } finally {
       await ctx.fiber.dispose()
@@ -2347,22 +2517,22 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-change'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       await write(join(root, 'pkg/AGENTS.md'), 'new package rule with more detail')
-      const changed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-change'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(changed)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         kind: 'workspace-instructions',
         changes: [{ action: 'replace', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(changed)?.content)).toBe([
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toBe([
         '<system-reminder>',
         `Updated instructions from: ${join('pkg', 'AGENTS.md')}`,
         '',
@@ -2389,26 +2559,26 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-both-siblings'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      const firstText = blocksText(workspaceContextOf(first)?.content)
+      const firstText = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(firstText).toContain('native package rule')
       expect(firstText).toContain('sibling package rule')
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       await rm(join(root, 'pkg/AGENTS.md'))
-      const removed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-one-sibling-removed'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
       // Removing one candidate only removes its own scope; the sibling scope is untouched.
-      expect(workspaceContextOf(removed)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'remove', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(removed)?.content)).toContain(`Instructions removed: ${join('pkg', 'AGENTS.md')}`)
-      expect(blocksText(workspaceContextOf(removed)?.content)).not.toContain('sibling package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain(`Instructions removed: ${join('pkg', 'AGENTS.md')}`)
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).not.toContain('sibling package rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2427,15 +2597,15 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-nested-dup-siblings'), name: 'read', arguments: { file_path: join('pkg', 'deep', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(result)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'set', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      const text = blocksText(workspaceContextOf(result)?.content)
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(text.match(/nested rule/g)).toHaveLength(1)
       expect(text).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
       expect(text).not.toContain(join('pkg', 'CLAUDE.md'))
@@ -2445,46 +2615,71 @@ describe('dynamic nested workspace context injection', () => {
     }
   })
 
-  it('keeps deduplicating against a loaded candidate whose probe transiently fails', async () => {
-    const root = await tempRepo()
-    const home = await tempRepo()
-    const ctx = new Context()
-    try {
-      await ctx.plugin(SystemPrompt)
-      await ctx.plugin(ToolRegistry)
-      await ctx.plugin(RecordingFileSystem)
-      const fs = ctx.fs as RecordingFileSystem
-      fs.entries.set(join(root, '.git'), { type: 'directory' })
-      fs.entries.set(join(root, 'pkg/AGENTS.md'), { type: 'file', content: 'nested rule' })
-      fs.entries.set(join(root, 'pkg/file.txt'), { type: 'file', content: 'hello' })
-      await ctx.plugin(ToolFs)
-      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
-      const agent = stubAgent(root)
+  it.each(['visible', 'claimed'] as const)(
+    'keeps unavailable active candidate groups unchanged with cold and warm caches when authority is $s',
+    async (authority) => {
+      const root = join(await tempRepo(), 'virtual-repo')
+      const home = join(await tempRepo(), 'virtual-home')
+      const ctx = new Context()
+      try {
+        await ctx.plugin(RecordingFileSystem)
+        const fs = ctx.fs as RecordingFileSystem
+        fs.entries.set(join(root, '.git'), { type: 'directory' })
+        fs.entries.set(join(root, 'pkg/CLAUDE.md'), { type: 'file', content: 'nested rule' })
+        fs.throwOnStat.add(join(root, 'pkg/AGENTS.md'))
+        const agent = stubAgent(root)
+        const agentsScope = sk('pkg', 'AGENTS.md')
+        const loaded = baselineInstructionState([{
+          absolutePath: join(root, 'pkg/AGENTS.md'),
+          displayPath: join('pkg', 'AGENTS.md'),
+          content: 'nested rule',
+          version: FsVersion('loaded-agents'),
+        }])
+        const previous = loaded.changes.get(agentsScope)
+        if (previous === undefined) throw new Error('missing AGENTS.md baseline state')
+        const authoritative = createUserMessage({
+          content: [{ type: 'text', text: 'nested rule' }],
+          source: { kind: 'workspace-instructions', changes: [previous] },
+        })
+        if (authority === 'visible') {
+          agent.session.append('user/message', authoritative, { surfaceOp: 'append' })
+        }
+        const authorityMessages = authority === 'claimed' ? [authoritative] : []
 
-      const first = await ctx.tools.execute({
-        signal: testToolSignal,
-        callId: CallId('read-before-transient-probe-failure'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
-      })
-      appendAdditionalContexts(agent, first)
-      expect(first.additionalContexts).toBeDefined()
+        for (const instructionFileCandidates of [
+          ['AGENTS.md', 'CLAUDE.md'],
+          ['CLAUDE.md', 'AGENTS.md'],
+        ]) {
+          const resolved = resolveConfig({
+            dshHome: home,
+            maxBytes: 65536,
+            instructionFileCandidates,
+            localInstructionFileCandidates: [],
+          })
+          const coldCache: InstructionVersionCache = new WeakMap()
+          const warmCache: InstructionVersionCache = new WeakMap()
+          warmCache.set(agent.session, new Map(loaded.versions))
+          const options = {
+            authorityMessages,
+            scopeMessages: [],
+            touchedPaths: [],
+            includeBaselineScopes: false,
+            signal: testToolSignal,
+          }
 
-      // The loaded candidate's probe fails while an identical sibling appears:
-      // the cached candidate stays effective (last good state), so the sibling
-      // must still deduplicate against it rather than land as a duplicate set.
-      fs.throwOnStat.add(join(root, 'pkg/AGENTS.md'))
-      fs.entries.set(join(root, 'pkg/CLAUDE.md'), { type: 'file', content: 'nested rule' })
-      const duringFailure = await ctx.tools.execute({
-        signal: testToolSignal,
-        callId: CallId('read-during-transient-probe-failure'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
-      })
+          const cold = await reconcileInstructionContext(agent, resolved, coldCache, fs, options)
+          const warm = await reconcileInstructionContext(agent, resolved, warmCache, fs, options)
 
-      expect(duringFailure.additionalContexts).toBeUndefined()
-    } finally {
-      await ctx.fiber.dispose()
-      await rm(root, { recursive: true, force: true })
-      await rm(home, { recursive: true, force: true })
-    }
-  })
+          expect(cold).toEqual(warm)
+          expect(cold).toBeUndefined()
+        }
+      } finally {
+        await ctx.fiber.dispose()
+        await rm(dirname(root), { recursive: true, force: true })
+        await rm(dirname(home), { recursive: true, force: true })
+      }
+    },
+  )
 
   it('removes a previously rendered sibling once its content becomes a duplicate of an earlier candidate', async () => {
     const root = await tempRepo()
@@ -2498,24 +2693,25 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-dup-convergence'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      const firstText = blocksText(workspaceContextOf(first)?.content)
+      const firstText = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(firstText).toContain('canonical nested rule')
       expect(firstText).toContain('divergent nested rule')
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       await write(join(root, 'pkg/CLAUDE.md'), 'canonical nested rule')
-      const converged = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-dup-convergence'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(converged)?.source).toMatchObject({
+      const convergence = await syncedWorkspaceContext(ctx, agent)
+      expect(convergence.source).toMatchObject({
         changes: [{ action: 'remove', scope: sk('pkg', 'CLAUDE.md'), path: join('pkg', 'CLAUDE.md') }],
       })
-      expect(blocksText(workspaceContextOf(converged)?.content)).toContain(`Instructions removed: ${join('pkg', 'CLAUDE.md')}`)
+      expect(blocksText(convergence.content)).toContain(`Instructions removed: ${join('pkg', 'CLAUDE.md')}`)
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2534,25 +2730,25 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-earlier-converges'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       // Only the earlier candidate changes; the sibling stays byte-identical but now duplicates it.
       await write(join(root, 'pkg/AGENTS.md'), 'secondary nested rule')
-      const converged = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-earlier-converges'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(converged)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [
           { action: 'replace', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') },
           { action: 'remove', scope: sk('pkg', 'CLAUDE.md'), path: join('pkg', 'CLAUDE.md') },
         ],
       })
-      const text = blocksText(workspaceContextOf(converged)?.content)
+      const text = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
       expect(text).toContain(`Instructions removed: ${join('pkg', 'CLAUDE.md')}`)
       expect(text).toContain(`Updated instructions from: ${join('pkg', 'AGENTS.md')}`)
     } finally {
@@ -2572,22 +2768,22 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-remove'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       await rm(join(root, 'pkg/AGENTS.md'))
-      const removed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-remove'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(removed)?.source).toEqual({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         kind: 'workspace-instructions',
         changes: [{ action: 'remove', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(removed)?.content)).toBe([
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toBe([
         '<system-reminder>',
         `Instructions removed: ${join('pkg', 'AGENTS.md')}`,
         '',
@@ -2611,12 +2807,13 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-symlink-dir'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
-      expect(blocksText(workspaceContextOf(first)?.content)).toContain('package rule')
+      const firstText = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
+      await appendAdditionalContexts(ctx, agent)
+      expect(firstText).toContain('package rule')
 
       // The candidate now resolves through a symlink to a directory. A non-file
       // target is a confirmed absence (not unavailable), so the loaded scope is
@@ -2624,15 +2821,15 @@ describe('dynamic nested workspace context injection', () => {
       await rm(join(root, 'pkg/AGENTS.md'))
       await mkdir(join(root, 'pkg/elsewhere'), { recursive: true })
       await symlink(join(root, 'pkg/elsewhere'), join(root, 'pkg/AGENTS.md'))
-      const removed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-symlink-dir'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(removed)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'remove', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(removed)?.content)).toContain(`Instructions removed: ${join('pkg', 'AGENTS.md')}`)
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain(`Instructions removed: ${join('pkg', 'AGENTS.md')}`)
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2650,29 +2847,29 @@ describe('dynamic nested workspace context injection', () => {
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
 
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-tombstone'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       await rm(join(root, 'pkg/AGENTS.md'))
-      const removed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-to-create-tombstone'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, removed)
+      await appendAdditionalContexts(ctx, agent)
       await write(join(root, 'pkg/AGENTS.md'), 'restored package rule')
 
-      const restored = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-tombstone'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(workspaceContextOf(restored)?.source).toMatchObject({
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         changes: [{ action: 'set', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(restored)?.content)).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
-      expect(blocksText(workspaceContextOf(restored)?.content)).toContain('restored package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain(`Additional instructions from: ${join('pkg', 'AGENTS.md')}`)
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('restored package rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2699,14 +2896,14 @@ describe('dynamic nested workspace context injection', () => {
         signal: testToolSignal,
         callId: CallId('read-before-provider-failure'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       fs.throwOnStat.add(join(root, 'pkg/AGENTS.md'))
       const duringFailure = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-during-provider-failure'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
       })
 
-      expect(first.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
       expect(duringFailure.additionalContexts).toBeUndefined()
     } finally {
       await ctx.fiber.dispose()
@@ -2732,7 +2929,7 @@ describe('dynamic nested workspace context injection', () => {
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
         agent,
       })
-      appendAdditionalContexts(agent, first)
+      await appendAdditionalContexts(ctx, agent)
       const resumed = stubAgent(root, [...agent.session.events])
 
       const afterResume = await ctx.tools.execute({
@@ -2743,7 +2940,7 @@ describe('dynamic nested workspace context injection', () => {
         agent: resumed,
       })
 
-      expect(first.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
       expect(afterResume.additionalContexts).toBeUndefined()
     } finally {
       await rm(root, { recursive: true, force: true })
@@ -2761,11 +2958,11 @@ describe('dynamic nested workspace context injection', () => {
       const ctx = new Context()
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const original = stubAgent(root)
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-before-offline-change'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent: original,
       })
-      appendAdditionalContexts(original, first)
+      await appendAdditionalContexts(ctx, original)
       await write(join(root, 'pkg/AGENTS.md'), 'new nested rule after resume')
       const resumed = stubAgent(root, [...original.session.events])
 
@@ -2799,7 +2996,7 @@ describe('dynamic nested workspace context injection', () => {
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
         agent,
       })
-      const contextSeq = appendAdditionalContexts(agent, first)!
+      const contextSeq = (await appendAdditionalContexts(ctx, agent))!
       const visibleBeforeCompact = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-while-visible'),
@@ -2824,10 +3021,10 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
 
-      expect(first.additionalContexts).toBeDefined()
+      expect(first.additionalContexts).toBeUndefined()
       expect(visibleBeforeCompact.additionalContexts).toBeUndefined()
-      expect(afterCompact.additionalContexts).toBeDefined()
-      expect(blocksText(workspaceContextOf(afterCompact)?.content)).toContain('nested package rule')
+      expect(afterCompact.additionalContexts).toBeUndefined()
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2863,14 +3060,15 @@ describe('dynamic nested workspace context injection', () => {
         sourceEventSeqs: [baseline!.seq],
       })
 
-      const rearmed = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-compacted-baseline'),
         name: 'read',
         arguments: { file_path: 'file.txt' },
         agent,
       })
-      appendAdditionalContexts(agent, rearmed)
+      const rearmedContext = (await syncedWorkspaceContext(ctx, agent))
+      await appendAdditionalContexts(ctx, agent)
       const afterRearm = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-rearmed-baseline'),
@@ -2880,10 +3078,10 @@ describe('dynamic nested workspace context injection', () => {
       })
 
       expect(whileVisible.additionalContexts).toBeUndefined()
-      expect(workspaceContextOf(rearmed)?.source).toMatchObject({
+      expect(rearmedContext.source).toMatchObject({
         changes: [{ action: 'set', scope: sk('.', 'AGENTS.md'), path: 'AGENTS.md' }],
       })
-      expect(blocksText(workspaceContextOf(rearmed)?.content)).toContain('root rule')
+      expect(blocksText(rearmedContext.content)).toContain('root rule')
       expect(afterRearm.additionalContexts).toBeUndefined()
     } finally {
       await rm(root, { recursive: true, force: true })
@@ -2903,16 +3101,17 @@ describe('dynamic nested workspace context injection', () => {
       const ctx = new Context()
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
       const agent = stubAgent(root)
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-package'),
         name: 'read',
         arguments: { file_path: join('pkg', 'file.txt') },
         agent,
       })
-      appendAdditionalContexts(agent, first)
+      const firstText = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
+      await appendAdditionalContexts(ctx, agent)
 
-      const second = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-subtree'),
         name: 'read',
@@ -2920,8 +3119,8 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
 
-      expect(blocksText(workspaceContextOf(first)?.content)).toContain('package note')
-      expect(blocksText(workspaceContextOf(second)?.content)).toContain('subtree rule')
+      expect(firstText).toContain('package note')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('subtree rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -2940,16 +3139,17 @@ describe('dynamic nested workspace context injection', () => {
       const ctx = new Context()
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 700 })
       const agent = stubAgent(root)
-      const first = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-subtree-omitting-parent'),
         name: 'read',
         arguments: { file_path: join('pkg', 'sub', 'file.txt') },
         agent,
       })
-      appendAdditionalContexts(agent, first)
+      const firstText = blocksText(((await syncedWorkspaceContext(ctx, agent))).content)
+      await appendAdditionalContexts(ctx, agent)
 
-      const second = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-parent-after-omit'),
         name: 'read',
@@ -2957,11 +3157,9 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
 
-      const firstText = blocksText(workspaceContextOf(first)?.content)
-      expect(firstText).toContain(`omitted ${join('pkg', 'AGENTS.md')}`)
-      expect(firstText).not.toContain(`## ${join('pkg', 'AGENTS.md')}`)
+      expect(firstText).toContain(join('pkg', 'AGENTS.md'))
       expect(firstText).toContain('subtree rule')
-      expect(blocksText(workspaceContextOf(second)?.content)).toContain('parent rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('parent rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -3002,7 +3200,7 @@ describe('dynamic nested workspace context injection', () => {
         source: { kind: 'plugin', plugin: 'other' },
       }), { surfaceOp: 'append' })
 
-      const result = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-after-spoofed-state'),
         name: 'read',
@@ -3010,7 +3208,7 @@ describe('dynamic nested workspace context injection', () => {
         agent,
       })
 
-      expect(blocksText(workspaceContextOf(result)?.content)).toContain('nested package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -3036,7 +3234,7 @@ describe('dynamic nested workspace context injection', () => {
         arguments: { file_path: 'root.txt' },
         agent,
       })
-      const absoluteResult = await ctx.tools.execute({
+      await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-absolute-nested-file'),
         name: 'read',
@@ -3045,51 +3243,13 @@ describe('dynamic nested workspace context injection', () => {
       })
 
       expect(rootResult.additionalContexts).toBeUndefined()
-      expect(blocksText(workspaceContextOf(absoluteResult)?.content)).toContain('nested package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
     }
   })
 
-  it('treats a reconciliation provider failure as unavailable and a resolved non-file as absent', async () => {
-    const root = await tempRepo()
-    const home = await tempRepo()
-    const ctx = new Context()
-    try {
-      await ctx.plugin(RecordingFileSystem)
-      const fs = ctx.fs as RecordingFileSystem
-      fs.entries.set(join(root, '.git'), { type: 'directory' })
-      fs.throwOnStat.add(join(root, 'pkg/AGENTS.md'))
-      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
-      const agent = stubAgent(root)
-      const result = {
-        callId: CallId('provider-probe-result'),
-        content: [{ type: 'text' as const, text: 'ok' }],
-        isError: false as const,
-        value: null,
-      }
-
-      const failedStat = await ctx.waterfall('tools/post-execute', stubToolExecution({
-        signal: testToolSignal,
-        callId: CallId('provider-stat-failure'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
-      }), result, async () => ({ kind: 'accept' as const }))
-      fs.throwOnStat.clear()
-      fs.entries.set(join(root, 'pkg/AGENTS.md'), { type: 'directory' })
-      const mismatchedStat = await ctx.waterfall('tools/post-execute', stubToolExecution({
-        signal: testToolSignal,
-        callId: CallId('provider-stat-mismatch'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
-      }), result, async () => ({ kind: 'accept' as const }))
-
-      expect(failedStat).toEqual({ kind: 'accept' })
-      expect(mismatchedStat).toEqual({ kind: 'accept' })
-    } finally {
-      await ctx.fiber.dispose()
-      await rm(root, { recursive: true, force: true })
-      await rm(home, { recursive: true, force: true })
-    }
-  })
-
   it('skips unreadable nested instruction files without attaching empty context', async () => {
     // Cross-platform unreadable fixture: the provider read throws (chmod 0
     // cannot make a file unreadable to its owner on Windows).
@@ -3108,18 +3268,22 @@ describe('dynamic nested workspace context injection', () => {
       fs.throwOnRead.add(nested)
       await ctx.plugin(ToolFs)
       await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
 
       const result = await ctx.tools.execute({
         signal: testToolSignal,
         callId: CallId('read-with-unreadable-nested-instruction'),
         name: 'read',
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
-        agent: stubAgent(root),
+        agent,
       })
+      await syncWorkspaceContext(ctx, agent)
 
       expect(result.isError).toBe(false)
       expect(result.additionalContexts).toBeUndefined()
-      expect(fs.readTargets).toContain(nested)
+      await vi.waitFor(() => {
+        expect(fs.readTargets).toContain(nested)
+      })
     } finally {
       await ctx.fiber.dispose()
       await rm(root, { recursive: true, force: true })
@@ -3127,7 +3291,7 @@ describe('dynamic nested workspace context injection', () => {
     }
   })
 
-  it('preserves a downstream canonical value replacement and keeps contexts separate', async () => {
+  it('preserves a downstream canonical value replacement while queuing workspace context separately', async () => {
     const root = await tempRepo()
     const home = await tempRepo()
     try {
@@ -3136,6 +3300,7 @@ describe('dynamic nested workspace context injection', () => {
       await write(join(root, 'pkg/deep/file.txt'), 'hello')
       const ctx = new Context()
       await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
       ctx.on('tools/post-execute', async () => ({
         kind: 'accept' as const,
         value: {
@@ -3155,7 +3320,7 @@ describe('dynamic nested workspace context injection', () => {
         callId: CallId('read-with-downstream'),
         name: 'read',
         arguments: { file_path: join('pkg', 'deep', 'file.txt') },
-        agent: stubAgent(root),
+        agent,
       })
 
       expect(result.isError).toBe(false)
@@ -3167,24 +3332,20 @@ describe('dynamic nested workspace context injection', () => {
         totalLines: 1,
       })
       expect(blocksText(result.content)).toContain('downstream replacement')
-      expect(result.additionalContexts).toHaveLength(2)
-      expect(workspaceContextOf(result)?.source).toMatchObject({ kind: 'workspace-instructions' })
-      expect(workspaceContextOf(result)?.source).toMatchObject({
+      expect(result.additionalContexts).toHaveLength(1)
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({ kind: 'workspace-instructions' })
+      expect(((await syncedWorkspaceContext(ctx, agent))).source).toMatchObject({
         kind: 'workspace-instructions',
         changes: [{ action: 'set', scope: sk('pkg', 'AGENTS.md'), path: join('pkg', 'AGENTS.md') }],
       })
-      expect(blocksText(workspaceContextOf(result)?.content)).toContain('nested package rule')
-      expect(blocksText(workspaceContextOf(result)?.content)).not.toContain('downstream context')
-      expect(result.additionalContexts?.[1]).toEqual({
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).not.toContain('downstream context')
+      expect(result.additionalContexts?.[0]).toEqual({
         id: expect.any(String) as unknown,
         role: 'user',
         content: [{ type: 'text', text: 'downstream context' }],
         source: { kind: 'plugin', plugin: 'downstream' },
       })
-      const agent = stubAgent(root)
-      appendAdditionalContexts(agent, result)
-      expect(blocksText(agent.session.deriveMessages()[1]?.content)).toContain('downstream context')
-      expect(blocksText(agent.session.deriveMessages()[1]?.content)).not.toContain('<context source=')
     } finally {
       await rm(root, { recursive: true, force: true })
       await rm(home, { recursive: true, force: true })
@@ -3265,7 +3426,7 @@ describe('dynamic nested workspace context injection', () => {
       expect(blocked.isError).toBe(true)
       expect(blocked.additionalContexts).toBeUndefined()
       expect(accepted.isError).toBe(false)
-      expect(blocksText(workspaceContextOf(accepted)?.content)).toContain('nested package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
     } finally {
       await ctx.fiber.dispose()
       await rm(root, { recursive: true, force: true })
@@ -3326,7 +3487,7 @@ describe('dynamic nested workspace context injection', () => {
       expect(blocked.isError).toBe(true)
       expect(blocked.additionalContexts).toBeUndefined()
       expect(accepted.isError).toBe(false)
-      expect(blocksText(workspaceContextOf(accepted)?.content)).toContain('nested package rule')
+      expect(blocksText(((await syncedWorkspaceContext(ctx, agent))).content)).toContain('nested package rule')
     } finally {
       await ctx.fiber.dispose()
       await rm(root, { recursive: true, force: true })
@@ -3354,16 +3515,32 @@ describe('dynamic nested workspace context injection', () => {
       })] })
       ctx.emit('tools/result', stubToolExecution({
         signal: testToolSignal,
-        callId: CallId('first-child'), name: 'read', arguments: {}, agent, parent,
+        callId: CallId('failed-child'), name: 'read', arguments: { file_path: 'failed/file.txt' }, agent, parent,
+      }), { content: [], isError: true, error: { message: 'failed' } })
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('first-child'), name: 'read', arguments: { file_path: 'first/file.txt' }, agent, parent,
       }), { ...plainResult, additionalContexts: [workspaceChangeContext('first', 'one')] })
       ctx.emit('tools/result', stubToolExecution({
         signal: testToolSignal,
-        callId: CallId('second-child'), name: 'read', arguments: {}, agent, parent,
+        callId: CallId('second-child'), name: 'read', arguments: { file_path: 'second/file.txt' }, agent, parent,
       }), { ...plainResult, additionalContexts: [workspaceChangeContext('second', 'two')] })
       ctx.emit('tools/result', {
         ...stubToolExecution({ signal: testToolSignal, callId: CallId('agentless-parent'), name: 'composite', arguments: {} }),
         token: parent,
       }, plainResult)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('null-arguments'), name: 'read', arguments: null, agent,
+      }), plainResult)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('blank-path'), name: 'read', arguments: { file_path: ' ' }, agent,
+      }), plainResult)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('non-fs'), name: 'composite', arguments: {}, agent,
+      }), plainResult)
 
       expect(agent.session.deriveMessages()).toEqual([])
     } finally {
@@ -3491,141 +3668,287 @@ describe('dynamic nested workspace context injection', () => {
   })
 })
 
-describe('workspace context pending state', () => {
-  it('leaves pending transitions from other or untracked steps untouched', () => {
-    const agent = stubAgent('/')
-    const change = (scope: string) => ({
-      action: 'set' as const, scope, path: `${scope}/AGENTS.md`, digest: scope,
-    })
-    const pending = new WeakMap<object, Map<string, PendingInstructionChange>>([[
-      agent.session,
-      new Map([
-        ['untracked', { change: change('untracked'), afterSeq: 0 }],
-        ['other-turn', { change: change('other-turn'), afterSeq: 0, step: { turn: 2, step: 1 } }],
-        ['other-step', { change: change('other-step'), afterSeq: 0, step: { turn: 1, step: 2 } }],
-        ['current', { change: change('current'), afterSeq: 0, step: { turn: 1, step: 1 } }],
-      ]),
-    ]])
-    const versions: InstructionVersionCache = new WeakMap()
-    const ended = agent.session.append('step/end', { turn: 1, step: 1 })
+describe('workspace context inbox synchronization', () => {
+  const acceptedResult = {
+    content: [{ type: 'text' as const, text: 'ok' }],
+    isError: false as const,
+    value: null,
+  }
 
-    observeInstructionSessionEvent(agent.session, ended, pending, versions)
+  it('keeps one reusable desired context when recovery contains an exact duplicate', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'AGENTS.md'), 'duplicate baseline')
+      const ctx = new Context()
+      await mountWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      await syncWorkspaceContext(ctx, agent)
+      const desired = agent.inbox.nextStep[0]!
+      agent.inbox.append('next-step', createUserMessage({ content: desired.content, source: desired.source }))
 
-    expect([...pending.get(agent.session)?.keys() ?? []]).toEqual(['untracked', 'other-turn', 'other-step'])
+      await syncWorkspaceContext(ctx, agent)
+
+      expect(agent.inbox.nextStep).toHaveLength(1)
+      expect(agent.inbox.nextStep[0]?.id).toBe(desired.id)
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
   })
 
-  it('confirms a pending transition only when its matching workspace context reaches the log', () => {
-    const agent = stubAgent('/')
-    const pending = new WeakMap<object, Map<string, PendingInstructionChange>>()
-    const versions: InstructionVersionCache = new WeakMap()
-    const [change] = commitPendingInstructionContexts(agent, [workspaceChangeContext('pkg', 'one')], pending)
-    expect(change).toBeDefined()
-    versions.set(agent.session, new Map([['pkg', {
-      path: join('pkg', 'AGENTS.md'), version: FsVersion('v1'), digest: 'one', trimmedDigest: 'one',
-    }]]))
+  it('keeps a dynamic change within a one-byte positive render budget', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    const ctx = new Context()
+    try {
+      await ctx.plugin(RecordingFileSystem)
+      const fs = ctx.fs as RecordingFileSystem
+      fs.entries.set(join(root, '.git'), { type: 'directory' })
+      fs.entries.set(join(root, 'pkg/AGENTS.md'), { type: 'file', content: 'tiny-budget rule' })
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 1 })
+      const agent = stubAgent(root)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('tiny-budget-touch'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
+      }), acceptedResult)
 
-    const unrelated = agent.session.append('user/message', createUserMessage({
-      content: [], source: { kind: 'plugin', plugin: 'other' },
-    }), { surfaceOp: 'append' })
-    observeInstructionSessionEvent(agent.session, unrelated, pending, versions)
-    expect(pending.get(agent.session)?.has('pkg')).toBe(true)
+      await syncWorkspaceContext(ctx, agent)
 
-    const otherContext = workspaceChangeContext('other', 'other')
-    const otherWorkspaceEvent = agent.session.append('user/message', createUserMessage({
-      content: otherContext.content,
-      source: otherContext.source,
-    }), { surfaceOp: 'append' })
-    observeInstructionSessionEvent(agent.session, otherWorkspaceEvent, pending, versions)
-    expect(pending.get(agent.session)?.has('pkg')).toBe(true)
-
-    const context = workspaceChangeContext('pkg', 'one')
-    const confirmed = agent.session.append('user/message', createUserMessage({
-      content: context.content,
-      source: context.source,
-    }), { surfaceOp: 'append' })
-    observeInstructionSessionEvent(agent.session, confirmed, pending, versions)
-
-    expect(pending.has(agent.session)).toBe(false)
-    expect(versions.get(agent.session)?.has('pkg')).toBe(true)
+      expect(agent.inbox.nextStep).toHaveLength(1)
+      expect(Buffer.byteLength(blocksText(agent.inbox.nextStep[0]?.content), 'utf8')).toBeLessThanOrEqual(1)
+    } finally {
+      await ctx.fiber.dispose()
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
   })
 
-  it('discards pending state and its version fast path when the owning step closes first', () => {
-    const agent = stubAgent('/')
-    const pending = new WeakMap<object, Map<string, PendingInstructionChange>>()
-    const versions: InstructionVersionCache = new WeakMap()
-    agent.session.append('step/start', { turn: 1, step: 1 })
-    commitPendingInstructionContexts(agent, [workspaceChangeContext('pkg', 'one')], pending)
-    versions.set(agent.session, new Map([['pkg', {
-      path: join('pkg', 'AGENTS.md'), version: FsVersion('v1'), digest: 'one', trimmedDigest: 'one',
-    }]]))
+  it('settles same-scope replacement and deletion against files instead of pending prose', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'pkg/AGENTS.md'), 'pending version one')
+      await write(join(root, 'pkg/file.txt'), 'file')
+      const ctx = new Context()
+      await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      await ctx.tools.execute({
+        signal: testToolSignal,
+        callId: CallId('pending-v1'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
+      })
+      await syncWorkspaceContext(ctx, agent)
+      expect(blocksText(agent.inbox.nextStep[0]?.content)).toContain('pending version one')
 
-    const ended = agent.session.append('step/end', { turn: 1, step: 1 })
-    observeInstructionSessionEvent(agent.session, ended, pending, versions)
+      await write(join(root, 'pkg/AGENTS.md'), 'pending version two with more detail')
+      await ctx.tools.execute({
+        signal: testToolSignal,
+        callId: CallId('pending-v2'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
+      })
+      await syncWorkspaceContext(ctx, agent)
+      expect(agent.inbox.nextStep).toHaveLength(1)
+      expect(blocksText(agent.inbox.nextStep[0]?.content)).toContain('pending version two with more detail')
+      expect(blocksText(agent.inbox.nextStep[0]?.content)).not.toContain('pending version one')
 
-    expect(pending.has(agent.session)).toBe(false)
-    expect(versions.has(agent.session)).toBe(false)
+      await rm(join(root, 'pkg/AGENTS.md'))
+      await ctx.tools.execute({
+        signal: testToolSignal,
+        callId: CallId('pending-delete'), name: 'read', arguments: { file_path: join('pkg', 'file.txt') }, agent,
+      })
+      await syncWorkspaceContext(ctx, agent)
+      expect(agent.inbox.nextStep).toEqual([])
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
   })
 
-  it('keeps an unrelated scope\'s version fast path when a step-close discard empties only its own scope', () => {
-    const agent = stubAgent('/')
-    const pending = new WeakMap<object, Map<string, PendingInstructionChange>>()
-    const versions: InstructionVersionCache = new WeakMap()
-    agent.session.append('step/start', { turn: 1, step: 1 })
-    commitPendingInstructionContexts(agent, [workspaceChangeContext('pkg', 'one')], pending)
-    versions.set(agent.session, new Map([
-      ['pkg', {
-        path: join('pkg', 'AGENTS.md'), version: FsVersion('v1'), digest: 'one', trimmedDigest: 'one',
-      }],
-      ['other', {
-        path: join('other', 'AGENTS.md'), version: FsVersion('v2'), digest: 'two', trimmedDigest: 'two',
-      }],
-    ]))
+  it('restores drained dirty paths when pre-step reconciliation aborts', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    const ctx = new Context()
+    try {
+      await ctx.plugin(RecordingFileSystem)
+      const fs = ctx.fs as RecordingFileSystem
+      fs.entries.set(join(root, '.git'), { type: 'directory' })
+      fs.entries.set(join(root, 'a/AGENTS.md'), { type: 'file', content: 'restored A' })
+      fs.entries.set(join(root, 'b/AGENTS.md'), { type: 'file', content: 'restored B' })
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      const dirtyA = stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('dirty-before-abort'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent,
+      })
+      ctx.emit('tools/result', dirtyA, acceptedResult)
+      const controller = new AbortController()
+      controller.abort(new Error('abort dirty reconciliation'))
 
-    const ended = agent.session.append('step/end', { turn: 1, step: 1 })
-    observeInstructionSessionEvent(agent.session, ended, pending, versions)
+      await expect(agentEvents(ctx, agent).waterfall(
+        'agent/pre-step', [],
+        { turn: 1, step: 1, signal: controller.signal },
+        async () => ({ kind: 'enter' as const, messages: [] }),
+      )).rejects.toThrow('abort dirty reconciliation')
 
-    expect(pending.has(agent.session)).toBe(false)
-    expect(versions.get(agent.session)?.has('pkg')).toBe(false)
-    expect(versions.get(agent.session)?.has('other')).toBe(true)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('dirty-after-abort'), name: 'read', arguments: { file_path: join('b', 'file.txt') }, agent,
+      }), acceptedResult)
+      await syncWorkspaceContext(ctx, agent)
+      const text = blocksText(agent.inbox.nextStep[0]?.content)
+      expect(text).toContain('restored A')
+      expect(text).toContain('restored B')
+    } finally {
+      await ctx.fiber.dispose()
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
   })
 
-  it('rolls back only the exact current transition and releases empty session state', () => {
-    const agent = stubAgent('/')
-    const pending = new WeakMap<object, Map<string, PendingInstructionChange>>()
+  it('merges a final tool touch back into dirty paths while a pre-step aborts', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    const ctx = new Context()
+    try {
+      await ctx.plugin(BlockingReadFileSystem)
+      const fs = ctx.fs as BlockingReadFileSystem
+      fs.entries.set(join(root, '.git'), { type: 'directory' })
+      fs.entries.set(join(root, 'a/AGENTS.md'), { type: 'file', content: 'blocked A' })
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('dirty-blocked-a'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent,
+      }), acceptedResult)
+      const controller = new AbortController()
+      const preparing = agentEvents(ctx, agent).waterfall(
+        'agent/pre-step', [],
+        { turn: 1, step: 1, signal: controller.signal },
+        async () => ({ kind: 'enter' as const, messages: [] }),
+      )
+      await fs.started.promise
+      ctx.emit('tools/result', stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('dirty-concurrent-b'), name: 'read', arguments: { file_path: join('b', 'file.txt') }, agent,
+      }), acceptedResult)
+      controller.abort(new Error('abort blocked reconciliation'))
 
-    rollbackPendingInstructionChanges(agent, [{
-      action: 'set', scope: 'missing', path: 'missing/AGENTS.md', digest: 'none',
-    }], pending)
-    expect(commitPendingInstructionContexts(agent, [createUserMessage({
-      content: [], source: { kind: 'plugin', plugin: 'workspace-context' },
-    })], pending)).toEqual([])
-    // A workspace-instructions source whose change list filters to nothing
-    // must not mint per-session pending state.
-    expect(commitPendingInstructionContexts(agent, [createUserMessage({
-      content: [],
-      source: { kind: 'workspace-instructions', changes: [] },
-    })], pending)).toEqual([])
-    expect(pending.has(agent.session)).toBe(false)
-
-    const committed = commitPendingInstructionContexts(agent, [
-      workspaceChangeContext('first', 'one'),
-      workspaceChangeContext('second', 'two'),
-    ], pending)
-    const [first, second] = committed
-    expect(first).toBeDefined()
-    expect(second).toBeDefined()
-
-    const [newer] = commitPendingInstructionContexts(agent, [workspaceChangeContext('first', 'newer')], pending)
-    rollbackPendingInstructionChanges(agent, [first!], pending)
-    rollbackPendingInstructionChanges(agent, [{
-      action: 'set', scope: 'unknown', path: 'unknown/AGENTS.md', digest: 'unknown',
-    }], pending)
-    rollbackPendingInstructionChanges(agent, [second!], pending)
-    expect(pending.get(agent.session)?.get('first')?.change).toEqual(newer)
-
-    rollbackPendingInstructionChanges(agent, [newer!], pending)
-    expect(pending.has(agent.session)).toBe(false)
+      await expect(preparing).rejects.toThrow('abort blocked reconciliation')
+      expect(agent.inbox.nextStep).toEqual([])
+    } finally {
+      await ctx.fiber.dispose()
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
   })
+
+  it('serializes concurrent final results and merges both touched scopes into one pending context', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    const ctx = new Context()
+    try {
+      await ctx.plugin(RecordingFileSystem)
+      const fs = ctx.fs as RecordingFileSystem
+      fs.entries.set(join(root, '.git'), { type: 'directory' })
+      fs.entries.set(join(root, 'a/AGENTS.md'), { type: 'file', content: 'scope A' })
+      fs.entries.set(join(root, 'b/AGENTS.md'), { type: 'file', content: 'scope B' })
+      await ctx.plugin(workspaceContext, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(root)
+      const first = stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('concurrent-a'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent,
+      })
+      const second = stubToolExecution({
+        signal: testToolSignal,
+        callId: CallId('concurrent-b'), name: 'read', arguments: { file_path: join('b', 'file.txt') }, agent,
+      })
+
+      ctx.emit('tools/result', first, acceptedResult)
+      ctx.emit('tools/result', second, acceptedResult)
+      await syncWorkspaceContext(ctx, agent)
+
+      await vi.waitFor(() => {
+        expect(agent.inbox.nextStep).toHaveLength(1)
+        const text = blocksText(agent.inbox.nextStep[0]?.content)
+        expect(text).toContain('scope A')
+        expect(text).toContain('scope B')
+      })
+    } finally {
+      await ctx.fiber.dispose()
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it('merges a recovered pending context with a fresh touched scope', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'a/AGENTS.md'), 'recovered scope A')
+      await write(join(root, 'a/file.txt'), 'a')
+      await write(join(root, 'b/AGENTS.md'), 'fresh scope B')
+      await write(join(root, 'b/file.txt'), 'b')
+      const ctx = new Context()
+      await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const original = stubAgent(root)
+      await ctx.tools.execute({
+        signal: testToolSignal,
+        callId: CallId('recover-pending-a'), name: 'read', arguments: { file_path: join('a', 'file.txt') }, agent: original,
+      })
+      await syncWorkspaceContext(ctx, original)
+      const resumed = stubAgent(root, [...original.session.events])
+
+      await ctx.tools.execute({
+        signal: testToolSignal,
+        callId: CallId('recover-pending-b'), name: 'read', arguments: { file_path: join('b', 'file.txt') }, agent: resumed,
+      })
+      await syncWorkspaceContext(ctx, resumed)
+
+      await vi.waitFor(() => {
+        expect(resumed.inbox.nextStep).toHaveLength(1)
+        const text = blocksText(resumed.inbox.nextStep[0]?.content)
+        expect(text).toContain('recovered scope A')
+        expect(text).toContain('fresh scope B')
+      })
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
+  it('keeps a claimed batch unchanged and queues an offline correction', async () => {
+    const root = await tempRepo()
+    const home = await tempRepo()
+    try {
+      await mkdir(join(root, '.git'), { recursive: true })
+      await write(join(root, 'pkg/AGENTS.md'), 'old claimed rule')
+      await write(join(root, 'pkg/file.txt'), 'file')
+      const ctx = new Context()
+      await mountFileToolsAndWorkspaceContext(ctx, { dshHome: home, maxBytes: 65536 })
+      const agent = stubAgent(join(root, 'pkg'))
+      await syncedWorkspaceContext(ctx, agent)
+      const claimed = agent.inbox.claim('next-step')
+      await write(join(root, 'pkg/AGENTS.md'), 'new claimed rule with more detail')
+      const downstream = { kind: 'enter' as const, messages: claimed }
+
+      const decision = await agentEvents(ctx, agent).waterfall(
+        'agent/pre-step', claimed,
+        { turn: 1, step: 1, signal: testToolSignal },
+        async () => downstream,
+      )
+
+      expect(decision).toBe(downstream)
+      expect(blocksText(decision.kind === 'enter' ? decision.messages[0]?.content : [])).toContain('old claimed rule')
+      expect(agent.inbox.nextStep).toHaveLength(1)
+      expect(blocksText(agent.inbox.nextStep[0]?.content)).toContain('new claimed rule with more detail')
+    } finally {
+      await rm(root, { recursive: true, force: true })
+      await rm(home, { recursive: true, force: true })
+    }
+  })
+
 })
 
 describe('workspace context plugin export shape', () => {
diff --git a/packages/cordis/tool-cordis/src/api-catalog.ts b/packages/cordis/tool-cordis/src/api-catalog.ts
index 86a0042f7c..7cb86f7db3 100644
--- a/packages/cordis/tool-cordis/src/api-catalog.ts
+++ b/packages/cordis/tool-cordis/src/api-catalog.ts
@@ -1316,7 +1316,7 @@ export const EVENT_API: readonly EventApiEntry[] = [
     name: 'goal/changed',
     mode: 'emit',
     signature: '\'goal/changed\'(this: import(\'@deepseek-ai/dsh-scope\').Scoped<Agent>, agent: Agent, change: GoalChanged): void',
-    jsDoc: '/**\n * Goal mutation accepted by one live agent. The matching context event is\n * already appended or queued in that agent\'s active tool-batch FIFO.\n * Listener failures are contained.\n * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.\n * @param agent - agent whose session owns the goal.\n * @param change - fresh current projection or clear tombstone.\n * @mode emit\n */',
+    jsDoc: '/**\n * Goal mutation accepted by one live agent. The matching message has\n * already committed through a durable inbox insertion; later admission or\n * discard does not change that fact. Listener failures are contained.\n * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.\n * @param agent - agent whose session owns the goal.\n * @param change - fresh current projection or clear tombstone.\n * @mode emit\n */',
     summary: 'Goal mutation accepted by one live agent.',
   },
   {
@@ -1933,7 +1933,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [
   },
   {
     name: 'Inbox',
-    declaration: 'export class Inbox {\n    constructor(private readonly session: Session, private readonly notifications: InboxNotifications);\n    get nextTurn(): readonly UserMessage[];\n    get nextStep(): readonly UserMessage[];\n    get hasPending(): boolean;\n    claim(target: InboxTarget): UserMessage[];\n    append(target: InboxTarget, message: UserMessage): void;\n    prepend(target: InboxTarget, message: UserMessage): void;\n    update(target: InboxTarget, messageId: MessageId, newMessage: UserMessage): boolean;\n    remove(target: InboxTarget, messageId: MessageId): boolean;\n    splice(target: InboxTarget, start: number, deleteCount: number, inserted: UserMessage[]): UserMessage[];\n}',
+    declaration: 'export class Inbox {\n    constructor(private readonly session: Session, private readonly notifications: InboxNotifications);\n    get nextTurn(): readonly UserMessage[];\n    get nextStep(): readonly UserMessage[];\n    get hasPending(): boolean;\n    clear(): void;\n    claim(target: InboxTarget): UserMessage[];\n    append(target: InboxTarget, message: UserMessage): void;\n    prepend(target: InboxTarget, message: UserMessage): void;\n    update(target: InboxTarget, messageId: MessageId, newMessage: UserMessage): boolean;\n    remove(target: InboxTarget, messageId: MessageId): boolean;\n    splice(target: InboxTarget, start: number, deleteCount: number, inserted: UserMessage[]): UserMessage[];\n}',
   },
   {
     name: 'InboxNotifications',
diff --git a/packages/core/agent-loop/src/agent.ts b/packages/core/agent-loop/src/agent.ts
index b11912e2ce..13fd420065 100644
--- a/packages/core/agent-loop/src/agent.ts
+++ b/packages/core/agent-loop/src/agent.ts
@@ -112,10 +112,7 @@ export class ReactLoopAgent implements Agent {
   }
 
   cancel(cause: AgentCancelCause, options: CancelOptions = {}): void {
-    if (!options.keepInbox) {
-      this.inbox.splice('next-step', 0, this.inbox.nextStep.length, [])
-      this.inbox.splice('next-turn', 0, this.inbox.nextTurn.length, [])
-    }
+    if (!options.keepInbox) this.inbox.clear()
     if (this.phase.kind !== 'idle') this.phase.abort.abort(cause)
   }
 
diff --git a/packages/core/agent-loop/tests/coverage-edges.spec.ts b/packages/core/agent-loop/tests/coverage-edges.spec.ts
index 650d8493b7..1eb4373257 100644
--- a/packages/core/agent-loop/tests/coverage-edges.spec.ts
+++ b/packages/core/agent-loop/tests/coverage-edges.spec.ts
@@ -470,6 +470,40 @@ describe('unrenderable failure settlement', () => {
 })
 
 describe('driver bookkeeping edges', () => {
+  it('rejects a direct turn invocation without a driver reservation', async () => {
+    const ctx = await harness(new MockAdapter([]))
+    const agent = ctx.agentLoop.create(SessionId('turn-without-reservation'), { provider: 'mock', model: 'mock' })
+
+    await expect((agent as unknown as { turn(): Promise<boolean> }).turn())
+      .rejects.toThrow('turn without driver reservation')
+    expect(agent.status).toBe('idle')
+  })
+
+  it('closes an entered turn as blocked when its next step is rejected', async () => {
+    const adapter = new MockAdapter([textResponse('first step')])
+    const ctx = await harness(adapter)
+    const agent = ctx.agentLoop.create(SessionId('reject-next-step'), { provider: 'mock', model: 'mock' })
+    let proposals = 0
+    ctx.on('agent/pre-step', async (_subject, _messages, _context, next) => {
+      proposals += 1
+      return proposals === 2 ? { kind: 'reject' } : next()
+    })
+    ctx.on('agent/turn-stopping', (subject) => {
+      subject.inject(createUserMessage({
+        content: [{ type: 'text', text: 'do not enter the next step' }],
+        source: { kind: 'plugin', plugin: 'test' },
+      }))
+    })
+
+    send(agent, 'go')
+    await agent.whenIdle()
+
+    expect(proposals).toBe(2)
+    expect(adapter.requests).toHaveLength(1)
+    const end = agent.session.events.findLast(event => event.type === 'turn/end')
+    expect(end?.type === 'turn/end' && end.data.reason).toEqual({ kind: 'blocked' })
+  })
+
   it('a request failure that concludes recovery after step/end closed keeps the boundary balanced', async () => {
     const { LlmError } = await import('@deepseek-ai/dsh-llm')
     // The failure finish-chunk path returns request-failed AFTER step() has
diff --git a/packages/core/agent/README.i18n.yaml b/packages/core/agent/README.i18n.yaml
index 2327400ca6..a5bd6bdf20 100644
--- a/packages/core/agent/README.i18n.yaml
+++ b/packages/core/agent/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/core/agent/README.md
-README.md: 8942dcd976f9c7c5a8109ad3979fefe2a913cba5
-README.zh.md: 274a37556a9c2af140c57e5346da8abf7bc49bf3
+README.md: e1f1b121787645930fa9c41b3d0d5ee9880ef4ad
+README.zh.md: becc0ae299269e9982d6a63d7a2df966b999cfa9
diff --git a/packages/core/agent/README.md b/packages/core/agent/README.md
index 8942dcd976..e1f1b12178 100644
--- a/packages/core/agent/README.md
+++ b/packages/core/agent/README.md
@@ -62,7 +62,7 @@ Turn and step boundaries and the model token stream are durable `session/event`
 
 The handle every plugin programs against:
 
-- `agent.inbox` — the agent-owned projection of durable `agent/inbox/spliced` events. `nextTurn` and `nextStep` expose pending `UserMessage` values. `append`, `prepend`, `update`, `remove`, and `splice` mutate them; ordinary removals are durable cancellations and emit `agent/inbox/discarded`. `claim(target)` atomically removes the next proposed batch with pure deletion splices; the loop then emits `agent/inbox/claimed`. `MessageId` is the only occurrence identity and must remain unique while pending.
+- `agent.inbox` — the agent-owned projection of durable `agent/inbox/spliced` events. `nextTurn` and `nextStep` expose pending `UserMessage` values. `append`, `prepend`, `update`, `remove`, `clear`, and `splice` mutate them; ordinary removals and `clear()` are durable cancellations and emit `agent/inbox/discarded`. `claim(target)` atomically removes the next proposed batch with pure deletion splices; the loop then emits `agent/inbox/claimed`. `MessageId` is the only occurrence identity and must remain unique while pending.
 - `agent.followup(message)` — queue an ordinary `next-turn` message and wake the driver. It returns no completion handle; the message id identifies inbox insertion, claim, and discard facts, not a later output or `turn/end`.
 - `agent.steer(message)` — queue waking `next-step` input. An idle driver schedules a turn; collecting and running drivers consume it at their next step boundary.
 - `agent.inject(message)` — queue non-waking `next-step` context. A collecting or running driver claims it at the nearest later pre-step boundary; an idle driver leaves it pending until `followup()` or `steer()` wakes the driver. It may miss a request whose pre-step already claimed its batch.
diff --git a/packages/core/agent/README.zh.md b/packages/core/agent/README.zh.md
index 274a37556a..becc0ae299 100644
--- a/packages/core/agent/README.zh.md
+++ b/packages/core/agent/README.zh.md
@@ -62,7 +62,7 @@ inbox 的实时通知刻意采用逐消息的最小载荷：`agent/inbox/inserte
 
 每个插件面向的 handle：
 
-- `agent.inbox`：agent 所拥有的持久 `agent/inbox/spliced` 事件投影。`nextTurn` 与 `nextStep` 暴露待处理的 `UserMessage` 值。`append`、`prepend`、`update`、`remove` 与 `splice` 用于变更队列；普通删除是持久取消，并发出 `agent/inbox/discarded`。`claim(target)` 通过纯删除 splice 原子移除下一个候选批次，随后由循环发出 `agent/inbox/claimed`。`MessageId` 是唯一的入队项标识，在消息待处理期间必须保持唯一。
+- `agent.inbox`：agent 所拥有的持久 `agent/inbox/spliced` 事件投影。`nextTurn` 与 `nextStep` 暴露待处理的 `UserMessage` 值。`append`、`prepend`、`update`、`remove`、`clear` 与 `splice` 用于变更队列；普通删除和 `clear()` 都是持久取消，并发出 `agent/inbox/discarded`。`claim(target)` 通过纯删除 splice 原子移除下一个候选批次，随后由循环发出 `agent/inbox/claimed`。`MessageId` 是唯一的入队项标识，在消息待处理期间必须保持唯一。
 - `agent.followup(message)`：将一条普通 `next-turn` 消息排队并唤醒驱动器。它不返回完成 handle；消息 id 标识 inbox 的插入、领取与丢弃事实，而不标识之后的输出或 `turn/end`。
 - `agent.steer(message)`：将会唤醒的 `next-step` 输入排队。空闲驱动器会调度一个轮次；collecting 和 running 驱动器会在各自的下一步骤边界消费该输入。
 - `agent.inject(message)`：将不会唤醒的 `next-step` 上下文排队。collecting 或 running 驱动器会在最近的后续 pre-step 边界领取它；idle 驱动器则会让它保持待处理，直至 `followup()` 或 `steer()` 唤醒驱动器。若某次请求的 pre-step 已经领取完批次，它可能赶不上该请求。
diff --git a/packages/core/agent/src/inbox.ts b/packages/core/agent/src/inbox.ts
index 68479ae0d5..770e693948 100644
--- a/packages/core/agent/src/inbox.ts
+++ b/packages/core/agent/src/inbox.ts
@@ -54,6 +54,12 @@ export class Inbox {
     return this.nextTurn.length > 0 || this.nextStep.length > 0
   }
 
+  /** Durably cancel all pending input, clearing next-step before next-turn. */
+  clear(): void {
+    this.splice('next-step', 0, this.nextStep.length, [])
+    this.splice('next-turn', 0, this.nextTurn.length, [])
+  }
+
   /**
    * Remove and return the complete batch proposed for one step. The durable
    * splices are pure deletions; the caller publishes claimed notifications.
diff --git a/packages/core/agent/tests/agent.spec.ts b/packages/core/agent/tests/agent.spec.ts
index 2445be776b..84646f62eb 100644
--- a/packages/core/agent/tests/agent.spec.ts
+++ b/packages/core/agent/tests/agent.spec.ts
@@ -1,6 +1,7 @@
 import { describe, expect, expectTypeOf, it } from 'vitest'
 import { Context, Service, symbols } from 'cordis'
-import { Session, SessionId } from '@deepseek-ai/dsh-session'
+import { createUserMessage, freezeMessage } from '@deepseek-ai/dsh-llm'
+import { Session, SessionId, type UserMessage } from '@deepseek-ai/dsh-session'
 import AgentRegistry, {
   agentEvents,
   Inbox,
@@ -34,6 +35,69 @@ function stubAgent(rawId: string, overrides: Partial<Agent> = {}): Agent {
   return Object.assign(agent, overrides)
 }
 
+describe('Inbox', () => {
+  it('rejects an invalid durable splice during reconstruction', () => {
+    const session = new Session(SessionId('invalid-inbox-replay'))
+    session.append('agent/inbox/spliced', {
+      target: 'next-turn',
+      start: 1,
+      inserted: [],
+    })
+
+    expect(() => new Inbox(session, { inserted: () => {}, discarded: () => {} }))
+      .toThrow('invalid persisted inbox splice at session seq 0')
+  })
+
+  it('updates a pending message by identity and reports a missing identity', () => {
+    const session = new Session(SessionId('update-inbox'))
+    const inbox = new Inbox(session, { inserted: () => {}, discarded: () => {} })
+    const original = createUserMessage({
+      content: [{ type: 'text', text: 'original' }],
+      source: { kind: 'user' },
+    })
+    const replacement = freezeMessage({
+      ...original,
+      content: [{ type: 'text', text: 'replacement' }],
+    })
+    inbox.append('next-turn', original)
+
+    expect(inbox.update('next-turn', createUserMessage({
+      content: [{ type: 'text', text: 'missing' }],
+      source: { kind: 'user' },
+    }).id, replacement)).toBe(false)
+    expect(inbox.update('next-turn', original.id, replacement)).toBe(true)
+    expect(inbox.nextTurn).toEqual([replacement])
+  })
+
+  it('clears both pending lists as durable cancellations', () => {
+    const session = new Session(SessionId('clear-inbox'))
+    const discarded: UserMessage[] = []
+    const inbox = new Inbox(session, {
+      inserted: () => {},
+      discarded: message => void discarded.push(message),
+    })
+    const nextTurn = createUserMessage({ content: [{ type: 'text', text: 'turn' }], source: { kind: 'user' } })
+    const nextStep = createUserMessage({ content: [{ type: 'text', text: 'step' }], source: { kind: 'user' } })
+    inbox.append('next-turn', nextTurn)
+    inbox.append('next-step', nextStep)
+    const beforeClear = session.events.length
+
+    inbox.clear()
+
+    expect(inbox.hasPending).toBe(false)
+    expect(discarded).toEqual([nextStep, nextTurn])
+    expect(session.events.slice(beforeClear).map(event => event.type === 'agent/inbox/spliced'
+      ? event.data
+      : event.type)).toEqual([
+      { target: 'next-step', start: 0, removedCount: 1, inserted: [], outcome: 'canceled' },
+      { target: 'next-turn', start: 0, removedCount: 1, inserted: [], outcome: 'canceled' },
+    ])
+
+    inbox.clear()
+    expect(session.events).toHaveLength(beforeClear + 2)
+  })
+})
+
 describe('AgentRegistry', () => {
   it('registers exact entries, emits lifecycle events, and unregisters on owner disposal', async () => {
     const ctx = new Context()
@@ -184,6 +248,21 @@ describe('agentEvents()', () => {
       'agent event "agent/status" listener rejected: Error: async listener',
     ])
   })
+
+  it('dispatches serial listeners with the fused agent subject', async () => {
+    const ctx = new Context()
+    const agent = stubAgent('serial-event')
+    const signal = new AbortController().signal
+    const heard: Array<{ agent: Agent; turn: number; signal: AbortSignal }> = []
+    ctx.on('agent/turn-stopping', async (subject, turn, receivedSignal) => {
+      await Promise.resolve()
+      heard.push({ agent: subject, turn, signal: receivedSignal })
+    })
+
+    await agentEvents(ctx, agent).serial('agent/turn-stopping', 3, signal)
+
+    expect(heard).toEqual([{ agent, turn: 3, signal }])
+  })
 })
 
 describe('explicit cancellation contract', () => {
diff --git a/packages/examples/cli-demo/tests/cli.spec.ts b/packages/examples/cli-demo/tests/cli.spec.ts
index 0db53e20b5..fd7d39303e 100644
--- a/packages/examples/cli-demo/tests/cli.spec.ts
+++ b/packages/examples/cli-demo/tests/cli.spec.ts
@@ -337,6 +337,16 @@ describe('runOneShot and executeCli', () => {
     expect(files.some(file => file.endsWith('.jsonl.zstd'))).toBe(true)
   })
 
+  it('writes correlated session events in stream-json mode', async () => {
+    const { ctx } = await harness([textResponse('streamed answer')])
+    const output = await invoke(ctx, ['--output-format', 'stream-json', 'task'])
+    const records = output.stdout.trim().split('\n').map(line => JSON.parse(line) as { type: string })
+
+    expect(output.code).toBe(0)
+    expect(records.some(record => record.type === 'session_event')).toBe(true)
+    expect(records.at(-1)).toMatchObject({ type: 'result', output: 'streamed answer' })
+  })
+
   it('sums usage across tool steps and selects the last text-bearing assistant message', async () => {
     const first = { inputTokens: 10, outputTokens: 3, cacheReadTokens: 2, cacheWriteTokens: 1 }
     const second = { inputTokens: 7, outputTokens: 5, cacheReadTokens: 4, reasoningTokens: 6 }
diff --git a/packages/goal/command-goal/README.i18n.yaml b/packages/goal/command-goal/README.i18n.yaml
index 5082633d83..0178199f1b 100644
--- a/packages/goal/command-goal/README.i18n.yaml
+++ b/packages/goal/command-goal/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/goal/command-goal/README.md
-README.md: 8e1a5b417467c8701ea935e25acfece11c5a70d4
-README.zh.md: 66f237ac7ea8ef5d158917998b0dfd49189289f1
+README.md: 47f81a5ae303d3587c0af1a26407f0f1f0ba0d88
+README.zh.md: f5d22fa4889da8b7a1e2ac73e78ebe76714b8d42
diff --git a/packages/goal/command-goal/README.md b/packages/goal/command-goal/README.md
index 8e1a5b4174..47f81a5ae3 100644
--- a/packages/goal/command-goal/README.md
+++ b/packages/goal/command-goal/README.md
@@ -17,7 +17,7 @@ Human-facing `/goal` control over [`ctx.goals`](../goal/README.md). The plugin r
 
 Control words are case-insensitive only when they occupy the complete input. Every other non-empty suffix is an objective, so `/goal pause after verification` creates that literal objective. The goal domain trims and validates objectives. Because the generic command plane has no modal editor or confirmation primitive, `edit` takes its replacement inline and an unfinished replacement returns a direct error instructing the user to edit or clear.
 
-Expected domain rejections become stable direct command errors without exposing branded ids or revisions. Unexpected implementation failures still reject dispatch so adapters can report them as command failures. Generic command text and output remain live UI state; every accepted mutation is persisted and made model-visible by `dsh-goal` rather than by this plugin.
+Expected domain rejections become stable direct command errors without exposing branded ids or revisions. Unexpected implementation failures still reject dispatch so adapters can report them as command failures. Generic command text and output remain live UI state; `dsh-goal` persists every accepted mutation through a durable inbox insertion and independently queues its model-facing context.
 
 ## Composition
 
@@ -40,15 +40,15 @@ The TUI app enables the complete persisted-goal stack and this command by defaul
 
 #### What the model sees
 
-The slash input and direct status/error output are absent from model requests. An accepted mutation later appears through the goal domain's raw `<goal_state>` snapshot or clear tombstone; this preserves the model-visible-is-logged invariant without logging presentation text.
+The slash input and direct status/error output are absent from model requests. An accepted mutation queues the goal domain's raw `<goal_state>` snapshot or clear tombstone; the model sees it only if a later pre-step admits that context. The mutation remains durable if the queued message is discarded, and presentation text is never logged.
 
 #### Token effect
 
-Reading status or receiving a direct command error adds no model tokens. Each accepted mutation adds the goal domain's retained full snapshot, and an enabled same-session driver may add later goal-round prompts.
+Reading status or receiving a direct command error adds no model tokens. An admitted mutation context adds the goal domain's retained full snapshot, while one discarded before admission adds none; an enabled same-session driver may add later goal-round prompts.
 
 #### KV Cache effect
 
-Command discovery and direct output do not affect the cache. A mutation appends after the reusable history prefix; later compaction may replace the derived-history suffix.
+Command discovery and direct output do not affect the cache. An admitted mutation context appends after the reusable history prefix; later compaction may replace the derived-history suffix.
 
 ## Known Limitations and Deferred Work
 
diff --git a/packages/goal/command-goal/README.zh.md b/packages/goal/command-goal/README.zh.md
index 66f237ac7e..f5d22fa488 100644
--- a/packages/goal/command-goal/README.zh.md
+++ b/packages/goal/command-goal/README.zh.md
@@ -17,7 +17,7 @@
 
 只有控制词占据完整输入时才不区分大小写。其他任何非空后缀都属于目标，因此 `/goal pause after verification` 会创建该字面目标。goal 领域会去除目标首尾空白并进行验证。由于通用命令平面没有模态编辑器或确认原语，`edit` 会内联接收替换内容；若试图替换未完成的 goal，则直接返回错误，提示用户执行 edit 或 clear。
 
-可预期的领域拒绝会变成稳定的直接命令错误，不公开带品牌类型的 id 或 revision。意外实现失败仍会 reject 分发，使适配器能将其报告为命令失败。通用命令文本和输出仍属于实时 UI 状态；每项已接受变更都由 `dsh-goal` 持久化并提供给模型，而不是由此插件完成。
+可预期的领域拒绝会变成稳定的直接命令错误，不公开带品牌类型的 id 或 revision。意外实现失败仍会 reject 分发，使适配器能将其报告为命令失败。通用命令文本和输出仍属于实时 UI 状态；`dsh-goal` 通过持久 inbox 插入项持久化每项已接受变更，并单独将其面向模型的上下文排队。
 
 ## 组合
 
@@ -40,15 +40,15 @@ TUI 应用默认启用完整的持久 goal 栈和此命令。ACP（Agent Client
 
 #### 模型看到的内容
 
-斜杠输入与直接状态／错误输出不会进入模型请求。已接受的变更稍后会通过 goal 领域的原始 `<goal_state>` 快照或 clear tombstone 出现；这样既满足模型可见内容必须记录日志的不变量，也无需记录呈现文本。
+斜杠输入与直接状态／错误输出不会进入模型请求。已接受的变更会将 goal 领域的原始 `<goal_state>` 快照或 clear tombstone 排队；只有后续 pre-step 准入该上下文时，模型才会看到它。如果已排队的消息被丢弃，变更仍然持久；呈现文本绝不会记录到日志中。
 
 #### Token 影响
 
-读取状态或收到直接命令错误不会增加模型 token。每项已接受变更都会增加 goal 领域保留的完整快照；已启用的同会话驱动器还可能增加后续 Goal Round 提示词。
+读取状态或收到直接命令错误不会增加模型 token。获准的变更上下文会增加 goal 领域保留的完整快照，准入前被丢弃的上下文则不会增加；已启用的同会话驱动器还可能增加后续 Goal Round 提示词。
 
 #### KV Cache 影响
 
-命令发现与直接输出不会影响缓存。变更会追加到可复用历史前缀之后；后续压缩可能替换派生历史后缀。
+命令发现与直接输出不会影响缓存。获准的变更上下文会追加到可复用历史前缀之后；后续压缩可能替换派生历史后缀。
 
 ## 已知限制与暂缓事项
 
diff --git a/packages/goal/command-goal/tests/command-goal.spec.ts b/packages/goal/command-goal/tests/command-goal.spec.ts
index ba8c812bb7..e782960b47 100644
--- a/packages/goal/command-goal/tests/command-goal.spec.ts
+++ b/packages/goal/command-goal/tests/command-goal.spec.ts
@@ -6,7 +6,7 @@ import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent'
 import CommandService from '@deepseek-ai/dsh-commands'
 import GoalService from '@deepseek-ai/dsh-goal'
 import type { GoalRef } from '@deepseek-ai/dsh-goal'
-import SessionStore, { Session, SessionId, type UserMessage } from '@deepseek-ai/dsh-session'
+import SessionStore, { Session, SessionId } from '@deepseek-ai/dsh-session'
 import * as commandGoal from '@deepseek-ai/dsh-command-goal'
 
 interface Harness {
@@ -16,31 +16,23 @@ interface Harness {
   readonly plugin: Awaited<ReturnType<Context['plugin']>>
 }
 
-/** Commit one injected message as an already admitted turn for the Agent test double. */
-function appendInjection(session: Session, input: UserMessage): void {
-  const lastStart = session.events.findLast(event => event.type === 'turn/start')
-  const turn = (lastStart?.data.turn ?? 0) + 1
-  session.append('turn/start', { turn })
-  session.append('user/message', input, { surfaceOp: 'append' })
-  session.append('turn/end', { turn, reason: { kind: 'completed' } })
-}
-
 /** Build a live idle agent accepted by the exact-identity goal service. */
 function stubAgent(ctx: Context, id: string): { agent: Agent; session: Session } {
   // Store-created: the command executor durably logs lifecycle events on it.
   const session = ctx.sessions.create(SessionId(id))
+  const inbox = new Inbox(session, { inserted: () => {}, discarded: () => {} })
   let status: AgentStatus = 'idle'
   const agent: Agent = {
     id: session.id,
     options: {},
     session,
-    inbox: new Inbox(session, { inserted: () => {}, discarded: () => {} }),
+    inbox,
     ctx: new Context(),
     get status() { return status },
     send: () => {},
     followup: () => {},
     steer: () => {},
-    inject(input) { appendInjection(session, input) },
+    inject(input) { inbox.append('next-step', input) },
     cancel() { status = 'idle' },
     whenIdle() { return Promise.resolve() },
   }
@@ -131,7 +123,7 @@ describe('/goal human command', () => {
     expect(created.text).toContain('Rounds: 0/256')
     expect(created.text).toContain('Activation: armed')
     expect(test.ctx.goals.get(test.agent)?.objective).toBe('finish the release')
-    expect(domainEvents(test.session).map(event => event.type)).toEqual(['turn/start', 'user/message', 'turn/end'])
+    expect(domainEvents(test.session).map(event => event.type)).toEqual(['agent/inbox/spliced'])
 
     const count = domainEvents(test.session).length
     await expect(run(test, ' replacement')).resolves.toEqual({
diff --git a/packages/goal/goal-session/src/index.ts b/packages/goal/goal-session/src/index.ts
index c006fc8b55..1a545e95ef 100644
--- a/packages/goal/goal-session/src/index.ts
+++ b/packages/goal/goal-session/src/index.ts
@@ -125,7 +125,8 @@ export function apply(ctx: Context): void {
 
   /** Preserve claimed step context when this driver drops only its own round. */
   function restoreOtherClaimed(agent: Agent, messages: UserMessage[], messageId: MessageId): void {
-    const retained = messages.filter(message => message.id !== messageId)
+    const retained = messages.filter(message => message.id !== messageId
+      && !(message.source.kind === 'goal' && message.source.round === 0))
     for (const message of retained.toReversed()) {
       if (agent.inbox.nextStep.some(candidate => candidate.id === message.id)
         || agent.inbox.nextTurn.some(candidate => candidate.id === message.id)) continue
diff --git a/packages/goal/goal-session/tests/goal-session.spec.ts b/packages/goal/goal-session/tests/goal-session.spec.ts
index e1dd02dd32..ff241e2ae1 100644
--- a/packages/goal/goal-session/tests/goal-session.spec.ts
+++ b/packages/goal/goal-session/tests/goal-session.spec.ts
@@ -101,15 +101,14 @@ async function harness(script: ScriptEntry[]): Promise<Harness> {
   return { ctx, adapter, agent, driver }
 }
 
-/** Observe inserted inbox messages after the session append boundary closes. */
+/** Observe inserted inbox messages after the insertion call completes. */
 function onInboxMessage(
   ctx: Context,
   agent: Agent,
   listener: (message: UserMessage) => void,
 ): () => void {
-  return ctx.on('session/event', (session, event) => {
-    if (session !== agent.session || event.type !== 'agent/inbox/spliced') return
-    for (const message of event.data.inserted) queueMicrotask(() => { listener(message) })
+  return ctx.on('agent/inbox/inserted', (subject, { message }) => {
+    if (subject === agent) queueMicrotask(() => { listener(message) })
   })
 }
 
@@ -388,6 +387,56 @@ describe('same-session goal driving', () => {
     expect(test.adapter.requests).toHaveLength(1)
   })
 
+  it('restores non-goal step context when a claimed reservation becomes stale', async () => {
+    const test = await harness([textResponse('side contexts'), textResponse('revised goal')])
+    const claimedContext = createUserMessage({
+      content: [{ type: 'text', text: 'claimed context to restore' }],
+      source: { kind: 'plugin', plugin: 'test' },
+    })
+    const queuedStepContext = createUserMessage({
+      content: [{ type: 'text', text: 'context already queued for the next step' }],
+      source: { kind: 'plugin', plugin: 'test' },
+    })
+    const queuedTurnContext = createUserMessage({
+      content: [{ type: 'text', text: 'context already queued for the next turn' }],
+      source: { kind: 'plugin', plugin: 'test' },
+    })
+    let staged = false
+    const stopInserted = onInboxMessage(test.ctx, test.agent, (message) => {
+      if (message.source.kind !== 'goal' || message.source.round <= 0 || staged) return
+      staged = true
+      test.agent.inbox.prepend('next-step', claimedContext)
+    })
+    let edited = false
+    test.ctx.on('agent/pre-step', async (agent, messages, _context, next) => {
+      const decision = await next()
+      if (!messages.some(message => message.source.kind === 'goal' && message.source.round > 0) || edited) return decision
+      edited = true
+      agent.inbox.prepend('next-step', queuedStepContext)
+      agent.inbox.append('next-turn', queuedTurnContext)
+      const goal = test.ctx.goals.get(agent)
+      if (goal === undefined) throw new Error('missing claimed goal')
+      test.ctx.goals.edit(agent, goal, { objective: 'revised after claim' })
+      return decision.kind === 'reject' ? decision : {
+        kind: 'enter' as const,
+        messages: [...decision.messages, queuedStepContext, queuedTurnContext],
+      }
+    })
+    test.ctx.goals.create(test.agent, { objective: 'stale before admission', maxGoalRounds: 1 })
+
+    const goal = await waitForGoal(test.ctx, test.agent, current => current?.phase === 'blocked')
+    stopInserted()
+
+    expect(goal).toMatchObject({ objective: 'revised after claim', roundsStarted: 1 })
+    expect(test.adapter.requests).toHaveLength(2)
+    expect(requestText(test.adapter.requests[0]!)).toContain('claimed context to restore')
+    expect(requestText(test.adapter.requests[0]!)).toContain('context already queued for the next step')
+    expect(requestText(test.adapter.requests[0]!)).toContain('context already queued for the next turn')
+    expect(requestText(test.adapter.requests[0]!)).not.toContain('<goal_round>')
+    expect(requestText(test.adapter.requests[1]!)).toContain('revised after claim')
+    expect(requestText(test.adapter.requests[1]!)).not.toContain('stale before admission')
+  })
+
   it('disarms without dispatch when a durability checkpoint fails', async () => {
     const test = await harness([])
     test.ctx.on('session/flush', () => Promise.reject(new Error('disk unavailable')))
@@ -704,7 +753,7 @@ describe('same-session goal driving', () => {
   it('falls back to disarming when a cancelled reservation cannot be paused', async () => {
     const test = await harness([])
     const cancel = onInboxMessage(test.ctx, test.agent, (message) => {
-      if (message.source.kind !== 'goal') return
+      if (message.source.kind !== 'goal' || message.source.round <= 0) return
       cancel()
       vi.spyOn(test.ctx.goals, 'pause').mockImplementationOnce(() => {
         throw new Error('pause failed')
diff --git a/packages/goal/goal-session/tests/invariant.spec.ts b/packages/goal/goal-session/tests/invariant.spec.ts
index e35f87dfc8..b787c4763e 100644
--- a/packages/goal/goal-session/tests/invariant.spec.ts
+++ b/packages/goal/goal-session/tests/invariant.spec.ts
@@ -41,11 +41,15 @@ function view(roundsStarted: number): GoalView {
 }
 
 function appendChange(session: Session): void {
-  session.append('turn/start', { turn: 1 })
-  session.append('user/message', createUserMessage({
+  const message = createUserMessage({
     content: renderGoalChange(change),
     source: changeSource,
-  }), { surfaceOp: 'append' })
+  })
+  session.append('agent/inbox/spliced', {
+    target: 'next-step', start: 0, inserted: [message],
+  })
+  session.append('turn/start', { turn: 1 })
+  session.append('user/message', message, { surfaceOp: 'append' })
   session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 }
 
diff --git a/packages/goal/goal/README.i18n.yaml b/packages/goal/goal/README.i18n.yaml
index 142a6736bf..5657380084 100644
--- a/packages/goal/goal/README.i18n.yaml
+++ b/packages/goal/goal/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/goal/goal/README.md
-README.md: cba28b2de6cb59932f25ad57a32bc25e0d5e287a
-README.zh.md: aebb3a1e773038888a109dc040d3389988231953
+README.md: f72efe2306f11dfa5f30ac927bb1b900f691a7be
+README.zh.md: 4ca86a6c1aea228e069fbf25b22ec248297fae03
diff --git a/packages/goal/goal/README.md b/packages/goal/goal/README.md
index cba28b2de6..f72efe2306 100644
--- a/packages/goal/goal/README.md
+++ b/packages/goal/goal/README.md
@@ -21,13 +21,13 @@ Event-sourced same-session goal state. The service retains one current completio
 
 At most one goal is current. Creation produces an active revision-one goal and arms it. A non-complete goal must be edited, transitioned, or cleared; a completed goal may be replaced by a globally fresh id. Edits retain phase, blocker reason, and activation. Pause, completion, blocking, and clear disarm activation. A block records a policy-owned lower-kebab-case code plus a normalized free-form explanation; provider limits, configured budgets, execution errors, and requests for human input all use this one durable phase rather than multiplying lifecycle states. Resume accepts a stopped phase or a disarmed active goal only while the configured round cap has remaining capacity; it clears any former blocker reason. An active armed goal rejects the redundant operation.
 
-Every mutation queues a complete versioned snapshot through `agent.inject()`; clear uses a revisioned tombstone. A later entering pre-step records it as a model-visible `user/message`, whose content and typed `{ kind: 'goal', change }` source must agree exactly. Replay rejects malformed shapes, source/content drift, discontinuous revisions, illegal lifecycle transitions, non-monotonic per-goal timestamps, and non-sequential goal rounds. Mutation timestamps clamp against the preceding goal update when wall time moves backward.
+Every mutation passes a complete versioned snapshot through `agent.inject()`; clear uses a revisioned tombstone. The mutation commits when injection records the message in the durable `agent/inbox/spliced` insertion, even if that context remains queued and never reaches the model. Removing or discarding the queued message does not roll back the mutation. If the same message is later admitted as a model-visible `user/message`, replay verifies that its id, content, and typed `{ kind: 'goal', change }` source agree with the insertion without applying the mutation again.
 
-Injection may append immediately or wait in an active tool-batch FIFO. The service overlays accepted pending changes in memory and reconciles each exact payload when it enters the log, so consecutive model-tool mutations see their own latest revisions without treating an unlogged cache as durable state. Reentrant append observers see each accepted mutation exactly once, and incremental replay retains its cursor at the first corrupt event. `goal/changed` fires after the append or enqueue succeeds; listener failures are contained.
+Strict replay derives mutations only from inbox insertions and rejects malformed shapes, reused message ids with different changes, source/content drift on admission, discontinuous revisions, illegal lifecycle transitions, non-monotonic per-goal timestamps, and non-sequential admitted goal rounds. Positive rounds advance only on admitted `user/message` events. Mutation timestamps clamp against the preceding goal update when wall time moves backward. Reentrant insertion observers see each accepted mutation exactly once, incremental replay retains its cursor at the first corrupt event, and `goal/changed` fires after injection succeeds with listener failures contained.
 
 Activation is never persisted. A fresh cache and every `agent/session-start` edge disarm it even when replay finds an active durable phase. A continuation driver also calls `disarm()` before unload or after durability uncertainty. Session resume, fork, and driver replacement therefore retain the objective, phase, revisions, and admitted-round count without initiating work; a later explicit resume mutation must arm continuation.
 
-The separately published `./invariant` companion maintains an independent fold of each attached session. It rejects malformed goal source changes, model-visible content drift, discontinuous revisions, illegal lifecycle transitions, timestamp regressions, and non-sequential admitted rounds before the candidate event enters the durable log.
+The separately published `./invariant` companion maintains an independent fold of each attached session. It rejects malformed goal source changes, duplicate-id drift between insertion and admission, model-visible content drift, discontinuous revisions, illegal lifecycle transitions, timestamp regressions, and non-sequential admitted rounds before the candidate event enters the durable log.
 
 ## Extension points
 
@@ -39,15 +39,15 @@ Policy plugins call the service verbs and react to the scoped `goal/changed` eve
 
 #### What the model sees
 
-Each mutation is one raw user-role context block. A snapshot is rendered as `<goal_state>{"goal":...,"roundsStarted":...,"createdAt":...,"updatedAt":...}</goal_state>`; a clear renders the tombstone id/revision and `clearedAt`. There is no hidden state summary outside the log. The descriptive XML delimiter follows this repository's existing `<workspace_context>` convention and [Anthropic's published XML-tag prompting guidance](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags); it is public model-experience prior art, not a claim about any provider's proprietary training corpus.
+Each mutation queues one raw user-role context block. If admitted, a snapshot is rendered as `<goal_state>{"goal":...,"roundsStarted":...,"createdAt":...,"updatedAt":...}</goal_state>`; a clear renders the tombstone id/revision and `clearedAt`. The mutation remains durable if the queued context is discarded before admission, and there is no hidden state summary outside the session log. The descriptive XML delimiter follows this repository's existing `<workspace_context>` convention and [Anthropic's published XML-tag prompting guidance](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags); it is public model-experience prior art, not a claim about any provider's proprietary training corpus.
 
 #### Token effect
 
-Every retained mutation adds one full snapshot to derived history until compaction shadows it. Full snapshots make each record independently inspectable but repeat the objective and lifecycle fields.
+An admitted mutation adds one full snapshot to derived history until compaction shadows it; an insertion discarded before admission costs no model tokens. Full snapshots make each admitted record independently inspectable but repeat the objective and lifecycle fields.
 
 #### KV Cache effect
 
-Append-only within an epoch: each mutation follows the reusable request prefix and preceding history. Compaction may replace the derived-history suffix and move the reusable boundary.
+Append-only within an epoch after admission: each visible mutation follows the reusable request prefix and preceding history. Compaction may replace the derived-history suffix and move the reusable boundary.
 
 ## Known Limitations and Deferred Work
 
diff --git a/packages/goal/goal/README.zh.md b/packages/goal/goal/README.zh.md
index aebb3a1e77..4ca86a6c1a 100644
--- a/packages/goal/goal/README.zh.md
+++ b/packages/goal/goal/README.zh.md
@@ -21,13 +21,13 @@
 
 最多只有一个当前目标。创建操作会生成 revision 为 1、phase 为 active 的目标并启用续行。未完成的目标必须编辑、转换或清除；已完成目标可以由拥有全局未使用过的 id 的目标替换。编辑会保留 phase、blocker reason 与 activation。暂停、完成、阻塞和清除都会停用续行。阻塞会记录策略自有的 lower-kebab-case 代码和规范化的自由文本说明；提供方限制、配置预算、执行错误与请求人工输入都使用这一种持久 phase，不会扩增生命周期状态。只有配置的 Round 上限仍有剩余容量时，resume 才接受已停止 phase 或 phase 为 active 但已停用续行的目标；它会清除原 blocker reason。phase 为 active 且已启用续行的目标会拒绝冗余操作。
 
-每次变更都会通过 `agent.inject()` 把完整的版本化快照排队；clear 使用带 revision 的 tombstone。后续返回 enter 的 pre-step 会把它记录为模型可见的 `user/message`，其内容与带类型的 `{ kind: 'goal', change }` 来源必须完全一致。回放会拒绝形状错误、来源／内容漂移、不连续 revision、非法生命周期转换、每目标时间戳非单调，以及不连续的 Goal Round。挂钟时间倒退时，变更时间戳会限制在不早于上一次目标更新的值。
+每次变更都会通过 `agent.inject()` 传递完整的版本化快照；clear 使用带 revision 的 tombstone。注入将消息记录到持久 `agent/inbox/spliced` 插入项时，变更即已提交，即使该上下文仍在队列中且从未抵达模型也是如此。移除或丢弃已排队的消息不会回滚变更。如果同一消息随后获准成为模型可见的 `user/message`，回放会验证其 id、内容和带类型的 `{ kind: 'goal', change }` 来源与插入项一致，而不会再次应用变更。
 
-注入可以立即追加，也可能在活跃工具批次 FIFO 中等待。服务会在内存中叠加已接受的待处理变更，并在每个完全一致的载荷进入日志时逐一完成对账，因此连续的模型工具变更可以看到自身最新 revision，而不会把尚未记录的缓存当作持久状态。可重入追加观察者会且只会看到每项已接受变更一次；增量回放会把游标保留在第一个损坏事件处。追加或入队成功后才触发 `goal/changed`；监听器失败会被隔离处理。
+严格回放只从 inbox 插入项派生变更，并拒绝形状错误、以不同变更复用消息 id、准入时的来源／内容漂移、不连续 revision、非法生命周期转换、每目标时间戳非单调，以及不连续的已准入 Goal Round。只有获准的 `user/message` 事件会推进正数 Round。挂钟时间倒退时，变更时间戳会限制在不早于上一次目标更新的值。可重入插入观察者会且只会看到每项已接受变更一次；增量回放会把游标保留在第一个损坏事件处；`goal/changed` 会在注入成功后触发，监听器失败会被隔离处理。
 
 续行启用状态绝不持久化。新缓存与每次触发 `agent/session-start` 时都会停用续行，即使回放找到了持久 phase 为 active 的目标。续行驱动器在卸载前或持久性不确定后也会调用 `disarm()`。因此，会话恢复、fork 与驱动器替换会保留目标、phase、revision 和已准入 Round 数量，却不会启动工作；之后必须通过显式 resume 变更重新启用续行。
 
-单独发布的 `./invariant` 配套模块会为每个已挂接会话维护独立折叠。它会在候选事件进入持久日志前拒绝格式错误的 goal 来源变更、模型可见内容漂移、不连续 revision、非法生命周期转换、时间戳回退，以及不连续的已准入 round。
+单独发布的 `./invariant` 配套模块会为每个已挂接会话维护独立折叠。它会在候选事件进入持久日志前拒绝格式错误的 goal 来源变更、相同 id 在插入与准入之间的变更漂移、模型可见内容漂移、不连续 revision、非法生命周期转换、时间戳回退，以及不连续的已准入 Round。
 
 ## 扩展点
 
@@ -39,15 +39,15 @@
 
 #### 模型看到的内容
 
-每项变更都是一个原始用户角色上下文块。快照渲染为 `<goal_state>{"goal":...,"roundsStarted":...,"createdAt":...,"updatedAt":...}</goal_state>`；clear 会渲染 tombstone id／revision 与 `clearedAt`。日志外不存在隐藏状态摘要。这种描述性 XML 分隔符遵循仓库已有的 `<workspace_context>` 约定和 [Anthropic 发布的 XML 标签提示词指南](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags)；它是公开的模型体验先例，并非关于任何提供方专有训练语料的声明。
+每项变更都会将一个原始用户角色上下文块排队。获准后，快照渲染为 `<goal_state>{"goal":...,"roundsStarted":...,"createdAt":...,"updatedAt":...}</goal_state>`；clear 会渲染 tombstone id／revision 与 `clearedAt`。如果排队的上下文在准入前被丢弃，变更仍然持久；会话日志外不存在隐藏状态摘要。这种描述性 XML 分隔符遵循仓库已有的 `<workspace_context>` 约定和 [Anthropic 发布的 XML 标签提示词指南](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices#structure-prompts-with-xml-tags)；它是公开的模型体验先例，并非关于任何提供方专有训练语料的声明。
 
 #### Token 影响
 
-每项保留的变更都会向派生历史增加一份完整快照，直到压缩（compaction）将其遮蔽。完整快照让每条记录都能独立检查，但会重复目标和生命周期字段。
+获准的变更会向派生历史增加一份完整快照，直到压缩（compaction）将其遮蔽；准入前被丢弃的插入项不消耗模型 token。完整快照让每条获准记录都能独立检查，但会重复目标和生命周期字段。
 
 #### KV Cache 影响
 
-在一个 epoch 内仅追加：每项变更都位于可复用请求前缀和既有历史之后。压缩可能替换派生历史后缀，并移动可复用边界。
+准入后在一个 epoch 内仅追加：每项可见变更都位于可复用请求前缀和既有历史之后。压缩可能替换派生历史后缀，并移动可复用边界。
 
 ## 已知限制与暂缓事项
 
diff --git a/packages/goal/goal/src/domain.ts b/packages/goal/goal/src/domain.ts
index d7fb53e685..bece1aa965 100644
--- a/packages/goal/goal/src/domain.ts
+++ b/packages/goal/goal/src/domain.ts
@@ -35,7 +35,7 @@ export type GoalOperation =
   | 'block'
   | 'clear'
 
-/** Full-snapshot goal mutation retained in a model-visible context event. */
+/** Full-snapshot goal mutation committed by an injected inbox message. */
 export interface GoalSnapshotChangeMeta {
   readonly kind: 'goal/change'
   readonly version: 1
@@ -101,7 +101,7 @@ export interface EditGoalRequest {
   readonly maxGoalRounds?: number
 }
 
-/** Live notification after one goal mutation has been accepted for logging. */
+/** Live notification after one goal mutation commits through inbox insertion. */
 export interface GoalChanged {
   readonly operation: GoalOperation
   readonly ref: GoalRef
@@ -124,9 +124,9 @@ export type GoalErrorCode =
 declare module 'cordis' {
   interface Events {
     /**
-     * Goal mutation accepted by one live agent. The matching context event is
-     * already appended or queued in that agent's active tool-batch FIFO.
-     * Listener failures are contained.
+     * Goal mutation accepted by one live agent. The matching message has
+     * already committed through a durable inbox insertion; later admission or
+     * discard does not change that fact. Listener failures are contained.
      * Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.
      * @param agent - agent whose session owns the goal.
      * @param change - fresh current projection or clear tombstone.
diff --git a/packages/goal/goal/src/fold.ts b/packages/goal/goal/src/fold.ts
index 2ea83029cf..5c42929cdc 100644
--- a/packages/goal/goal/src/fold.ts
+++ b/packages/goal/goal/src/fold.ts
@@ -2,6 +2,7 @@
 
 import type { MessageSource } from '@deepseek-ai/dsh-llm'
 import type { SessionEvent } from '@deepseek-ai/dsh-session'
+import type { UserMessage } from '@deepseek-ai/dsh-session'
 import { renderGoalChange } from './render.ts'
 import { GOAL_CHANGE_VERSION, GoalId } from './runtime.ts'
 import type { GoalBlockReason, GoalPhase, GoalRef, GoalSnapshot } from './types.ts'
@@ -14,8 +15,6 @@ import type {
   GoalSnapshotChangeMeta,
 } from './domain.ts'
 
-type UserMessageEvent = Extract<SessionEvent, { type: 'user/message' }>
-
 const SNAPSHOT_OPERATIONS: ReadonlySet<Exclude<GoalOperation, 'clear'>> = new Set([
   'create',
   'edit',
@@ -34,6 +33,7 @@ export interface GoalFoldState {
   updatedAt: number | undefined
   lastRef: GoalRef | undefined
   seenGoalIds: Set<GoalSnapshot['id']>
+  insertedChangeMessages: Map<UserMessage['id'], GoalChangeMeta>
 }
 
 /**
@@ -48,6 +48,7 @@ export function emptyGoalFoldState(): GoalFoldState {
     updatedAt: undefined,
     lastRef: undefined,
     seenGoalIds: new Set(),
+    insertedChangeMessages: new Map(),
   }
 }
 
@@ -307,55 +308,75 @@ export function applyGoalChange(state: GoalFoldState, change: GoalChangeMeta): v
 }
 
 /**
- * Decode and verify one model-visible goal state change without folding it. A
- * goal state change is a round-zero goal-sourced `user/message` carrying the
- * complete change in its source; any other user message returns `undefined`.
- * A mismatched attribution, source change, or rendered body
- * fails replay loudly.
- * @param event - user message whose source and rendered content must agree.
+ * Decode and verify one goal state message without folding it. A goal state
+ * message has a round-zero goal source carrying the complete change; any other
+ * message returns `undefined`. Attribution and rendered-body drift fail loudly.
+ * @param message - inserted or admitted message to decode.
+ * @param location - event location included in replay failures.
  * @returns validated change, or `undefined` when the message is not a goal state change.
  */
-export function decodeGoalEvent(event: UserMessageEvent): GoalChangeMeta | undefined {
-  const source = goalSource(event.data.source)
+function decodeGoalMessage(message: UserMessage, location: string): GoalChangeMeta | undefined {
+  const source = goalSource(message.source)
   if (source === undefined) {
-    const [block] = event.data.content
+    const [block] = message.content
     if (block?.type === 'text' && block.text.startsWith('<goal_state>')) {
-      throw new Error(`goal change at session event ${event.seq} has mismatched source attribution`)
+      throw new Error(`goal change at ${location} has mismatched source attribution`)
     }
     return undefined
   }
   if (source.round !== 0) return undefined
   const change = decodeGoalChange(source.change)
-  if (change === undefined) throw new Error(`goal change at session event ${event.seq} lacks source change data`)
+  if (change === undefined) throw new Error(`goal change at ${location} lacks source change data`)
   const ref = goalChangeRef(change)
   if (source.goalId !== ref.id || source.revision !== ref.revision) {
-    throw new Error(`goal change at session event ${event.seq} has mismatched source attribution`)
+    throw new Error(`goal change at ${location} has mismatched source attribution`)
   }
-  if (JSON.stringify(event.data.content) !== JSON.stringify(renderGoalChange(change))) {
-    throw new Error(`goal change at session event ${event.seq} has mismatched model-visible content`)
+  if (JSON.stringify(message.content) !== JSON.stringify(renderGoalChange(change))) {
+    throw new Error(`goal change at ${location} has mismatched model-visible content`)
   }
   return change
 }
 
 /**
- * Apply one session event and return its goal change, when present.
+ * Apply one session event to the strict durable goal fold.
  * @param state - mutable fold accumulator.
  * @param event - next event in sequence order.
- * @returns decoded change for pending-overlay reconciliation.
  */
-export function applyGoalEvent(state: GoalFoldState, event: SessionEvent): GoalChangeMeta | undefined {
-  if (event.type === 'user/message') {
-    // A goal state change carries a complete source change (round zero).
-    const change = decodeGoalEvent(event)
-    if (change !== undefined) {
+export function applyGoalEvent(state: GoalFoldState, event: SessionEvent): void {
+  if (event.type === 'agent/inbox/spliced') {
+    for (const message of event.data.inserted) {
+      const location = `session event ${event.seq}`
+      const change = decodeGoalMessage(message, location)
+      if (change === undefined) continue
+      const inserted = state.insertedChangeMessages.get(message.id)
+      if (inserted !== undefined) {
+        if (JSON.stringify(inserted) !== JSON.stringify(change)) {
+          throw new Error(`goal change at ${location} reuses a message id with different change data`)
+        }
+        continue
+      }
       applyGoalChange(state, change)
-      return change
+      state.insertedChangeMessages.set(message.id, change)
+    }
+    return
+  }
+  if (event.type === 'user/message') {
+    const inserted = state.insertedChangeMessages.get(event.data.id)
+    const change = decodeGoalMessage(event.data, `session event ${event.seq}`)
+    if (inserted !== undefined && change !== undefined) {
+      if (JSON.stringify(inserted) !== JSON.stringify(change)) {
+        throw new Error(`goal change at session event ${event.seq} differs from its inbox insertion`)
+      }
+      return
+    }
+    if (change !== undefined) {
+      throw new Error(`goal change at session event ${event.seq} was not committed by an inbox insertion`)
     }
     const source = goalSource(event.data.source)
-    if (source === undefined) return undefined
+    if (source === undefined) return
     // A goal-sourced message without a change must be a positive-round
     // admitted continuation prompt; round zero owes a durable source change.
-    /* v8 ignore next 3 -- decodeGoalEvent returns the change or fails loud for every
+    /* v8 ignore next 3 -- decodeGoalMessage returns the change or fails loud for every
        round-zero goal source, so only positive rounds reach here; the guard keeps
        replay fail-loud against a decoder change */
     if (source.round === 0) {
@@ -369,7 +390,6 @@ export function applyGoalEvent(state: GoalFoldState, event: SessionEvent): GoalC
     }
     state.roundsStarted = source.round
   }
-  return undefined
 }
 
 /**
diff --git a/packages/goal/goal/src/index.ts b/packages/goal/goal/src/index.ts
index 59dee09477..38eef5ba7d 100644
--- a/packages/goal/goal/src/index.ts
+++ b/packages/goal/goal/src/index.ts
@@ -12,13 +12,11 @@ import type { ZodType } from 'zod'
 import { agentEvents } from '@deepseek-ai/dsh-agent'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import { createUserMessage } from '@deepseek-ai/dsh-llm'
-import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'
+import type { Session, SessionEvent, UserMessage } from '@deepseek-ai/dsh-session'
 // Type-only: resolves ctx.sessionProjections for the optional unit child.
 import type {} from '@deepseek-ai/dsh-session-projection'
 import {
-  applyGoalChange,
   applyGoalEvent,
-  decodeGoalEvent,
   emptyGoalFoldState,
   goalChangeRef,
 } from './fold.ts'
@@ -82,6 +80,12 @@ const goalProjectionSchema: ZodType<GoalProjection | null> = zod.union([
   zod.null(),
 ]) as ZodType<GoalProjection | null>
 
+/** Plain-JSON projection accumulator retaining duplicate-change identity. */
+type GoalProjectionState = readonly [
+  value: GoalProjection | null,
+  insertedChangeMessageIds: readonly string[],
+]
+
 /**
  * Light last-wins fold of the `goal` projection unit. Unlike the strict
  * replay fold (fold.ts: transition validation, fail-loud on malformed
@@ -95,23 +99,31 @@ const goalProjectionSchema: ZodType<GoalProjection | null> = zod.union([
  * @param event - the next committed session event.
  * @returns the next projection (same reference when the event is not a goal change).
  */
-export function applyGoalProjection(state: GoalProjection | null, event: SessionEvent): GoalProjection | null {
-  if (event.type !== 'user/message') return state
-  const source = event.data.source
-  if (source.kind !== 'goal' || source.round !== 0) return state
-  const change = source.change
-  // Session-log data is a durable boundary: the static type promises the kind,
-  // but a foreign or corrupted change record must degrade to same-reference,
-  // never feed the zod parse in the registry drive.
-  // oxlint-disable-next-line typescript/no-unnecessary-condition -- durable-boundary guard
-  if (change === undefined || change.kind !== 'goal/change') return state
-  if (change.operation === 'clear') return null
-  return {
-    goal: change.goal,
-    roundsStarted: change.roundsStarted,
-    createdAt: change.createdAt,
-    updatedAt: change.updatedAt,
+export function applyGoalProjection(state: GoalProjectionState, event: SessionEvent): GoalProjectionState {
+  if (event.type !== 'agent/inbox/spliced') return state
+  let projection = state[0]
+  let insertedChangeMessageIds: string[] | undefined
+  const seen = new Set(state[1])
+  for (const message of event.data.inserted) {
+    const source = message.source
+    const change = source.kind === 'goal' && source.round === 0 ? source.change : undefined
+    // oxlint-disable-next-line typescript/no-unnecessary-condition -- durable-boundary guard
+    if (seen.has(message.id) || change === undefined || change.kind !== 'goal/change') continue
+    seen.add(message.id)
+    insertedChangeMessageIds ??= [...state[1]]
+    insertedChangeMessageIds.push(message.id)
+    projection = change.operation === 'clear'
+      ? null
+      : {
+        goal: change.goal,
+        roundsStarted: change.roundsStarted,
+        createdAt: change.createdAt,
+        updatedAt: change.updatedAt,
+      }
   }
+  return insertedChangeMessageIds === undefined
+    ? state
+    : [projection, insertedChangeMessageIds]
 }
 
 /** Deployment defaults for goal creation. */
@@ -126,19 +138,12 @@ export interface ResolvedConfig {
   defaultMaxGoalRounds: number
 }
 
-/** One accepted mutation waiting to enter or be observed in the session log. */
-interface PendingGoalChange {
-  readonly change: GoalChangeMeta
-  readonly activation: GoalActivation
-  applied: boolean
-}
-
-/** Process-local cache plus mutations waiting in the active tool-batch FIFO. */
+/** Process-local cache plus activation intent crossing the synchronous injection boundary. */
 interface GoalCache {
   readonly state: GoalFoldState
   activation: GoalActivation
   observedSeq: number
-  readonly pending: PendingGoalChange[]
+  readonly pendingActivations: Map<UserMessage['id'], GoalActivation>
 }
 
 /** Validated create input with every deployment default materialized. */
@@ -188,11 +193,6 @@ function resolveBlockReason(reason: unknown): GoalBlockReason {
   return { code, message: message.trim() }
 }
 
-/** Compare the complete canonical payloads used for deferred reconciliation. */
-function sameChange(left: GoalChangeMeta, right: GoalChangeMeta): boolean {
-  return JSON.stringify(left) === JSON.stringify(right)
-}
-
 /** Goal service (`ctx.goals`) backed exclusively by the owning session log. */
 export class GoalService extends Service {
   static inject = ['agents']
@@ -216,13 +216,13 @@ export class GoalService extends Service {
     // (see applyGoalProjection). The unit child activates only when a
     // projection registry is composed (headless assemblies stay unaffected).
     ctx.inject(['sessionProjections'], (projectionCtx) => {
-      projectionCtx.sessionProjections.register<'goal', GoalProjection | null>({
+      projectionCtx.sessionProjections.register<'goal', GoalProjectionState>({
         key: 'goal',
         schema: goalProjectionSchema,
-        init: () => null,
+        init: () => [null, []],
         apply: applyGoalProjection,
-        view: state => state,
-        stateVersion: 1,
+        view: state => state[0],
+        stateVersion: 3,
       })
     })
   }
@@ -436,34 +436,24 @@ export class GoalService extends Service {
       state,
       activation: 'disarmed',
       observedSeq: session.seq,
-      pending: [],
+      pendingActivations: new Map(),
     }
     this.caches.set(session, cache)
     return cache
   }
 
-  /** Incrementally observe durable events without losing deferred mutations. */
+  /** Incrementally observe durable events and reconcile local activation intent. */
   private sync(session: Session, cache: GoalCache): void {
     for (const event of session.events.slice(cache.observedSeq)) {
-      // A goal state change is a round-zero goal-sourced user message; a
-      // positive round is a continuation prompt handled by applyGoalEvent.
-      if (event.type === 'user/message' && event.data.source.kind === 'goal' && event.data.source.round === 0) {
-        const change = decodeGoalEvent(event)
-        if (change !== undefined) {
-          const pending = cache.pending[0]
-          if (pending !== undefined && sameChange(pending.change, change)) {
-            if (!pending.applied) {
-              applyGoalChange(cache.state, change)
-              cache.activation = pending.activation
-              pending.applied = true
-            }
-            cache.pending.shift()
-            cache.observedSeq += 1
-            continue
-          }
-        }
-      }
+      const newGoalMessages = event.type === 'agent/inbox/spliced'
+        ? event.data.inserted.filter(message => message.source.kind === 'goal'
+          && message.source.round === 0 && !cache.state.insertedChangeMessages.has(message.id))
+        : []
       applyGoalEvent(cache.state, event)
+      for (const message of newGoalMessages) {
+        cache.activation = cache.pendingActivations.get(message.id) ?? 'disarmed'
+        cache.pendingActivations.delete(message.id)
+      }
       cache.observedSeq += 1
     }
   }
@@ -555,7 +545,7 @@ export class GoalService extends Service {
     }
     this.commit(agent, cache, change, activation)
     const view = this.view(cache)
-    /* v8 ignore next -- applyGoalChange installs the snapshot immediately before this read */
+    /* v8 ignore next -- the durable inbox insertion installs the snapshot before this read */
     if (view === undefined) throw new Error('snapshot commit cleared the goal unexpectedly')
     return view
   }
@@ -563,26 +553,21 @@ export class GoalService extends Service {
   /** Accept one mutation into the agent injection queue, cache, and live event stream. */
   private commit(agent: Agent, cache: GoalCache, change: GoalChangeMeta, activation: GoalActivation): void {
     const ref = goalChangeRef(change)
-    const pending: PendingGoalChange = { change, activation, applied: false }
-    cache.pending.push(pending)
+    const message = createUserMessage({
+      content: renderGoalChange(change),
+      source: { kind: 'goal', goalId: ref.id, revision: ref.revision, round: 0, change },
+    })
+    cache.pendingActivations.set(message.id, activation)
     try {
-      agent.inject(createUserMessage({
-        content: renderGoalChange(change),
-        source: { kind: 'goal', goalId: ref.id, revision: ref.revision, round: 0, change },
-      }))
+      agent.inject(message)
     } catch (error: unknown) {
-      const index = cache.pending.indexOf(pending)
-      /* v8 ignore next -- a committed goal append cannot reject after its contained observers run */
-      if (index < 0) throw new Error('goal injection failed after its pending mutation was reconciled', { cause: error })
-      cache.pending.splice(index, 1)
+      cache.pendingActivations.delete(message.id)
       throw error
     }
-    if (!pending.applied) {
-      applyGoalChange(cache.state, change)
-      cache.activation = activation
-      pending.applied = true
-    }
     this.sync(agent.session, cache)
+    if (cache.pendingActivations.delete(message.id)) {
+      throw new Error('goal injection returned without a durable inbox insertion')
+    }
     const goal = this.view(cache)
     const notification: GoalChanged = {
       operation: change.operation,
diff --git a/packages/goal/goal/src/invariant.ts b/packages/goal/goal/src/invariant.ts
index 42c83c65f0..ab2a1001d0 100644
--- a/packages/goal/goal/src/invariant.ts
+++ b/packages/goal/goal/src/invariant.ts
@@ -22,6 +22,7 @@ function cloneState(state: GoalFoldState): GoalFoldState {
     updatedAt: state.updatedAt,
     lastRef: state.lastRef,
     seenGoalIds: new Set(state.seenGoalIds),
+    insertedChangeMessages: new Map(state.insertedChangeMessages),
   }
 }
 
diff --git a/packages/goal/goal/tests/goal.spec.ts b/packages/goal/goal/tests/goal.spec.ts
index edded2bf86..31704c70c0 100644
--- a/packages/goal/goal/tests/goal.spec.ts
+++ b/packages/goal/goal/tests/goal.spec.ts
@@ -1,8 +1,8 @@
 import { describe, expect, it, vi } from 'vitest'
 import { Context } from 'cordis'
 import AgentRegistry, { agentEvents, Inbox } from '@deepseek-ai/dsh-agent'
-import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent'
-import { createUserMessage, HarnessError, type ContentBlock, type MessageSource } from '@deepseek-ai/dsh-llm'
+import type { Agent } from '@deepseek-ai/dsh-agent'
+import { createUserMessage, freezeMessage, HarnessError, type ContentBlock, type MessageSource } from '@deepseek-ai/dsh-llm'
 import SessionStore, { Session, SessionId, type UserMessage } from '@deepseek-ai/dsh-session'
 import GoalService, {
   GoalError,
@@ -13,15 +13,9 @@ import GoalService, {
 } from '@deepseek-ai/dsh-goal'
 import type { GoalChangeMeta, GoalRef, GoalSnapshotChangeMeta } from '@deepseek-ai/dsh-goal'
 
-type DeferredInjection = UserMessage
-
 interface StubAgent {
   agent: Agent
   session: Session
-  deferred: DeferredInjection[]
-  setDeferred(value: boolean): void
-  setStatus(value: AgentStatus): void
-  drain(): void
 }
 
 /** Number the next balanced test-fixture turn. */
@@ -31,46 +25,34 @@ function nextTurn(session: Session): number {
 
 /** Mirror the public Agent.inject contract for domain tests. */
 function appendInjection(session: Session, input: UserMessage): void {
-  session.append('user/message', input, { surfaceOp: 'append' })
+  new Inbox(session, { inserted: () => {}, discarded: () => {} }).append('next-step', input)
 }
 
 /** Build a registry-compatible agent around one concrete session. */
 function stubAgentForSession(session: Session): StubAgent {
   const id = session.id
-  const deferred: DeferredInjection[] = []
-  let shouldDefer = false
-  let status: AgentStatus = 'idle'
+  const inbox = new Inbox(session, { inserted: () => {}, discarded: () => {} })
   const agent: Agent = {
     id,
     options: {},
     session,
-    inbox: new Inbox(session, { inserted: () => {}, discarded: () => {} }),
+    inbox,
     ctx: new Context(),
-    get status() { return status },
+    status: 'idle',
     send: () => {},
     followup: () => {},
     steer: () => {},
-    inject(input) {
-      if (shouldDefer) deferred.push(input)
-      else appendInjection(session, input)
-    },
+    inject(input) { inbox.append('next-step', input) },
     cancel() {},
     whenIdle() { return Promise.resolve() },
   }
   return {
     agent,
     session,
-    deferred,
-    setDeferred(value) { shouldDefer = value },
-    setStatus(value) { status = value },
-    drain() {
-      shouldDefer = false
-      for (const injection of deferred.splice(0)) appendInjection(session, injection)
-    },
   }
 }
 
-/** Build a registry-compatible agent with controllable context deferral. */
+/** Build a registry-compatible agent around a fresh session. */
 function stubAgent(rawId: string, seed?: readonly import('@deepseek-ai/dsh-session').SessionEvent[]): StubAgent {
   return stubAgentForSession(new Session(SessionId(rawId), seed))
 }
@@ -117,16 +99,18 @@ describe('GoalService creation and replay', () => {
     })
     expect(goal.id).toMatch(/^goal-/)
     expect(seen).toEqual(['create'])
-    expect(session.events.map(event => event.type)).toEqual(['user/message'])
+    expect(session.events.map(event => event.type)).toEqual(['agent/inbox/spliced'])
     const context = session.events[0]
-    expect(context?.type).toBe('user/message')
-    if (context?.type !== 'user/message') throw new Error('expected goal context')
-    expect(context.data.source).toMatchObject({ kind: 'goal', goalId: goal.id, revision: 1, round: 0 })
-    const change = context.data.source.kind === 'goal' ? decodeGoalChange(context.data.source.change) : undefined
+    expect(context?.type).toBe('agent/inbox/spliced')
+    if (context?.type !== 'agent/inbox/spliced') throw new Error('expected queued goal context')
+    const message = context.data.inserted[0]
+    if (message === undefined) throw new Error('expected inserted goal context')
+    expect(message.source).toMatchObject({ kind: 'goal', goalId: goal.id, revision: 1, round: 0 })
+    const change = message.source.kind === 'goal' ? decodeGoalChange(message.source.change) : undefined
     if (change === undefined) throw new Error('expected decoded goal change')
     expect(change).toMatchObject({ operation: 'create', goal: { id: goal.id } })
-    expect(context.data.content).toEqual(renderGoalChange(change))
-    expect(session.deriveMessages()).toEqual([context.data])
+    expect(message.content).toEqual(renderGoalChange(change))
+    expect(session.deriveMessages()).toEqual([])
     expect(foldGoal(session.events)).toMatchObject({ goal: { id: goal.id }, roundsStarted: 0 })
     vi.useRealTimers()
   })
@@ -390,9 +374,11 @@ describe('GoalService mutations', () => {
     vi.setSystemTime(80)
     ctx.goals.clear(agent, goal)
     const clear = session.events
-      .filter(event => event.type === 'user/message' && event.data.source.kind === 'goal')
-      .map(event => event.type === 'user/message' && event.data.source.kind === 'goal'
-        ? decodeGoalChange(event.data.source.change)
+      .filter(event => event.type === 'agent/inbox/spliced')
+      .flatMap(event => event.type === 'agent/inbox/spliced' ? event.data.inserted : [])
+      .filter(message => message.source.kind === 'goal')
+      .map(message => message.source.kind === 'goal'
+        ? decodeGoalChange(message.source.change)
         : undefined)
       .at(-1)
     expect(clear).toMatchObject({ operation: 'clear', clearedAt: 100 })
@@ -411,23 +397,15 @@ describe('GoalService mutations', () => {
     expect(warn).toHaveBeenCalledWith(expect.stringContaining('broken observer'))
   })
 
-  it('preserves multiple pending revisions until deferred injections enter the log', async () => {
-    const test = await harness()
-    const { ctx, agent, session, deferred } = test
-    test.setDeferred(true)
+  it('commits consecutive revisions through synchronous inbox insertions', async () => {
+    const { ctx, agent, session } = await harness()
     let goal = ctx.goals.create(agent, { objective: 'deferred', maxGoalRounds: 5 })
     goal = ctx.goals.edit(agent, goal, { objective: 'deferred edit' })
     goal = ctx.goals.pause(agent, goal)
     expect(goal).toMatchObject({ revision: 3, phase: 'paused', activation: 'disarmed' })
-    expect(deferred).toHaveLength(3)
-    expect(session.events).toHaveLength(0)
-
-    appendInjection(session, createUserMessage({
-      content: [{ type: 'text', text: 'unrelated' }], source: { kind: 'plugin', plugin: 'test' },
-    }))
-    expect(ctx.goals.get(agent)).toMatchObject({ revision: 3, phase: 'paused' })
-    test.drain()
-    expect(deferred).toHaveLength(0)
+    expect(session.events.map(event => event.type)).toEqual([
+      'agent/inbox/spliced', 'agent/inbox/spliced', 'agent/inbox/spliced',
+    ])
     expect(ctx.goals.get(agent)).toMatchObject({ revision: 3, phase: 'paused' })
     expect(foldGoal(session.events)).toMatchObject({ goal: { revision: 3, phase: 'paused' } })
   })
@@ -441,7 +419,8 @@ describe('GoalService mutations', () => {
     ctx.agents.register(stub.agent)
     let observed: ReturnType<GoalService['get']>
     ctx.on('session/event', (session, event) => {
-      if (session === stub.session && event.type === 'user/message' && event.data.source.kind === 'goal') observed = ctx.goals.get(stub.agent)
+      if (session === stub.session && event.type === 'agent/inbox/spliced'
+        && event.data.inserted.some(message => message.source.kind === 'goal')) observed = ctx.goals.get(stub.agent)
     })
 
     const created = ctx.goals.create(stub.agent, { objective: 'publish once' })
@@ -472,15 +451,19 @@ describe('GoalService mutations', () => {
     })
   })
 
-  it('rejects deferred goal mutations that enter the log out of FIFO order', async () => {
-    const test = await harness()
-    test.setDeferred(true)
-    const created = test.ctx.goals.create(test.agent, { objective: 'ordered' })
-    test.ctx.goals.edit(test.agent, created, { objective: 'ordered edit' })
-    const second = test.deferred[1]
-    if (second === undefined) throw new Error('expected a second deferred goal mutation')
-    appendInjection(test.session, second)
-    expect(() => test.ctx.goals.get(test.agent)).toThrow('advance the current goal')
+  it('rejects an inject implementation that returns before durable insertion', async () => {
+    const ctx = new Context()
+    await ctx.plugin(AgentRegistry)
+    await ctx.plugin(GoalService)
+    const stub = stubAgent('goal-missing-insertion')
+    const inject = stub.agent.inject.bind(stub.agent)
+    stub.agent.inject = () => {}
+    ctx.agents.register(stub.agent)
+
+    expect(() => ctx.goals.create(stub.agent, { objective: 'missing' }))
+      .toThrow('without a durable inbox insertion')
+    stub.agent.inject = inject
+    expect(ctx.goals.create(stub.agent, { objective: 'committed' })).toMatchObject({ revision: 1 })
   })
 
   it('observes a valid goal snapshot appended after an empty cache was established', async () => {
@@ -502,12 +485,9 @@ describe('GoalService mutations', () => {
       updatedAt: 12,
     }
     const source = { kind: 'goal', goalId: change.goal.id, revision: 1, round: 0, change } as const
-    const turn = nextTurn(session)
-    session.append('turn/start', { turn })
-    session.append('user/message', createUserMessage({
+    appendInjection(session, createUserMessage({
       content: renderGoalChange(change), source,
-    }), { surfaceOp: 'append' })
-    session.append('turn/end', { turn, reason: { kind: 'completed' } })
+    }))
 
     expect(ctx.goals.get(agent)).toMatchObject({
       id: change.goal.id,
@@ -583,12 +563,14 @@ describe('goal replay validation', () => {
       round: 0,
       change,
     }
-    const turn = nextTurn(session)
-    session.append('turn/start', { turn })
-    session.append('user/message', createUserMessage({
+    const message = createUserMessage({
       content: overrides.content ?? renderGoalChange(change),
       source,
-    }), { surfaceOp: 'append' })
+    })
+    appendInjection(session, message)
+    const turn = nextTurn(session)
+    session.append('turn/start', { turn })
+    session.append('user/message', message, { surfaceOp: 'append' })
     session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
 
@@ -622,6 +604,74 @@ describe('goal replay validation', () => {
     }
   }
 
+  it('commits queued changes before admission and verifies the admitted copy without applying it twice', () => {
+    const change = snapshotChange()
+    const message = createUserMessage({
+      content: renderGoalChange(change),
+      source: { kind: 'goal', goalId: change.goal.id, revision: 1, round: 0, change },
+    })
+    const session = new Session(SessionId('queued-change'))
+    appendInjection(session, message)
+    expect(foldGoal(session.events)).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
+    const inbox = new Inbox(session, { inserted: () => {}, discarded: () => {} })
+    expect(inbox.remove('next-step', message.id)).toBe(true)
+    inbox.append('next-step', message)
+
+    session.append('turn/start', { turn: 1 })
+    session.append('user/message', message, { surfaceOp: 'append' })
+    expect(foldGoal(session.events)).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
+  })
+
+  it('rejects an admitted change without its inbox insertion', () => {
+    const change = snapshotChange()
+    const message = createUserMessage({
+      content: renderGoalChange(change),
+      source: { kind: 'goal', goalId: change.goal.id, revision: 1, round: 0, change },
+    })
+    const session = new Session(SessionId('orphan-admitted-change'))
+    session.append('user/message', message, { surfaceOp: 'append' })
+    expect(() => foldGoal(session.events)).toThrow('was not committed by an inbox insertion')
+  })
+
+  it('allows an ordinary admission rewrite but rejects changed goal data under an inserted message id', () => {
+    const change = snapshotChange()
+    const message = createUserMessage({
+      content: renderGoalChange(change),
+      source: { kind: 'goal', goalId: change.goal.id, revision: 1, round: 0, change },
+    })
+    const drift = new Session(SessionId('admitted-change-drift'))
+    appendInjection(drift, message)
+    drift.append('user/message', freezeMessage({
+      ...message,
+      content: [{ type: 'text', text: 'rewritten as ordinary context' }],
+      source: { kind: 'plugin', plugin: 'changed-after-claim' },
+    }), { surfaceOp: 'append' })
+    expect(foldGoal(drift.events)).toMatchObject({ goal: { id: change.goal.id, revision: 1 } })
+
+    const edit = mutation(change, 'edit', 'active')
+    const changedAdmission = new Session(SessionId('changed-admitted-goal'))
+    appendInjection(changedAdmission, message)
+    changedAdmission.append('user/message', freezeMessage({
+      ...message,
+      content: renderGoalChange(edit),
+      source: { kind: 'goal', goalId: edit.goal.id, revision: 2, round: 0, change: edit },
+    }), { surfaceOp: 'append' })
+    expect(() => foldGoal(changedAdmission.events)).toThrow('differs from its inbox insertion')
+
+    const reused = new Session(SessionId('reused-change-message-id'))
+    appendInjection(reused, message)
+    reused.append('agent/inbox/spliced', {
+      target: 'next-step',
+      start: 1,
+      inserted: [freezeMessage({
+        ...message,
+        content: renderGoalChange(edit),
+        source: { kind: 'goal', goalId: edit.goal.id, revision: 2, round: 0, change: edit },
+      })],
+    })
+    expect(() => foldGoal(reused.events)).toThrow('reuses a message id with different change data')
+  })
+
   function foldPair(first: GoalSnapshotChangeMeta, second: GoalChangeMeta): ReturnType<typeof foldGoal> {
     const session = new Session(SessionId(`validation-pair-${Math.random()}`))
     appendChange(session, first)
@@ -848,13 +898,7 @@ describe('goal replay validation', () => {
       cleared: { id: change.goal.id, revision: 2 },
       clearedAt: 20,
     }
-    const source = { kind: 'goal', goalId: change.goal.id, revision: 2, round: 0, change: clear } as const
-    const turn = nextTurn(session)
-    session.append('turn/start', { turn })
-    session.append('user/message', createUserMessage({
-      content: renderGoalChange(clear), source,
-    }), { surfaceOp: 'append' })
-    session.append('turn/end', { turn, reason: { kind: 'completed' } })
+    appendChange(session, clear)
     expect(foldGoal(session.events)).toEqual({
       roundsStarted: 0,
       lastRef: { id: change.goal.id, revision: 2 },
diff --git a/packages/goal/goal/tests/invariant.spec.ts b/packages/goal/goal/tests/invariant.spec.ts
index 50fac9c5c6..af16b7df06 100644
--- a/packages/goal/goal/tests/invariant.spec.ts
+++ b/packages/goal/goal/tests/invariant.spec.ts
@@ -1,4 +1,4 @@
-import { createUserMessage } from '@deepseek-ai/dsh-llm'
+import { createUserMessage, freezeMessage } from '@deepseek-ai/dsh-llm'
 import { describe, expect, it } from 'vitest'
 import { Context } from 'cordis'
 import {
@@ -46,11 +46,15 @@ describe('goal stream invariants', () => {
   it('accepts canonical goal snapshots and sequential admitted rounds', async () => {
     const ctx = await setup()
     const session = ctx.sessions.create(SessionId('goal-invariant-valid'))
-    session.append('turn/start', { turn: 1 })
-    session.append('user/message', createUserMessage({
+    const message = createUserMessage({
       content: renderGoalChange(change),
       source: changeSource,
-    }), { surfaceOp: 'append' })
+    })
+    session.append('agent/inbox/spliced', {
+      target: 'next-step', start: 0, inserted: [message],
+    })
+    session.append('turn/start', { turn: 1 })
+    session.append('user/message', message, { surfaceOp: 'append' })
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     session.append('turn/start', { turn: 2 })
     expect(() => {
@@ -64,22 +68,22 @@ describe('goal stream invariants', () => {
   it('rejects model-visible drift before committing it and keeps the fold reusable', async () => {
     const ctx = await setup()
     const session = ctx.sessions.create(SessionId('goal-invariant-invalid'))
+    const message = createUserMessage({ content: renderGoalChange(change), source: changeSource })
+    session.append('agent/inbox/spliced', {
+      target: 'next-step', start: 0, inserted: [message],
+    })
     session.append('turn/start', { turn: 1 })
     expect(() => {
-      session.append('user/message', createUserMessage({
+      session.append('user/message', freezeMessage({ ...message,
         content: [{ type: 'text', text: 'counterfeit' }],
-        source: changeSource,
       }), { surfaceOp: 'append' })
     }).toThrow(expect.objectContaining<Partial<InvariantError>>({
       code: 'INVARIANT',
       packageName: '@deepseek-ai/dsh-goal',
     }))
-    expect(session.seq).toBe(1)
+    expect(session.seq).toBe(2)
     expect(() => {
-      session.append('user/message', createUserMessage({
-        content: renderGoalChange(change),
-        source: changeSource,
-      }), { surfaceOp: 'append' })
+      session.append('user/message', message, { surfaceOp: 'append' })
     }).not.toThrow()
   })
 
@@ -87,11 +91,12 @@ describe('goal stream invariants', () => {
     const ctx = new Context()
     await ctx.plugin(SessionStore)
     const session = ctx.sessions.create(SessionId('goal-invariant-late-load'))
+    const message = createUserMessage({ content: renderGoalChange(change), source: changeSource })
+    session.append('agent/inbox/spliced', {
+      target: 'next-step', start: 0, inserted: [message],
+    })
     session.append('turn/start', { turn: 1 })
-    session.append('user/message', createUserMessage({
-      content: renderGoalChange(change),
-      source: changeSource,
-    }), { surfaceOp: 'append' })
+    session.append('user/message', message, { surfaceOp: 'append' })
     session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
 
     await ctx.plugin(InvariantService, { enabled: true })
diff --git a/packages/goal/goal/tests/projection.spec.ts b/packages/goal/goal/tests/projection.spec.ts
index fd20a9db06..9e31c96bc8 100644
--- a/packages/goal/goal/tests/projection.spec.ts
+++ b/packages/goal/goal/tests/projection.spec.ts
@@ -17,7 +17,7 @@ import type { UserMessage } from '@deepseek-ai/dsh-session'
 import SessionStore from '@deepseek-ai/dsh-session'
 import type { Session } from '@deepseek-ai/dsh-session'
 import SessionProjectionRegistry from '@deepseek-ai/dsh-session-projection'
-import GoalService, { applyGoalProjection } from '@deepseek-ai/dsh-goal'
+import GoalService, { applyGoalProjection, foldGoal } from '@deepseek-ai/dsh-goal'
 import type { GoalRef } from '@deepseek-ai/dsh-goal'
 
 interface Bench {
@@ -31,18 +31,19 @@ interface Bench {
 /** Register a minimal registry-compatible live agent over a store session. */
 function liveAgent(ctx: Context, session: Session): Agent {
   const status: AgentStatus = 'idle'
+  const inbox = new Inbox(session, { inserted: () => {}, discarded: () => {} })
   const agent: Agent = {
     id: session.id,
     options: {},
     session,
-    inbox: new Inbox(session, { inserted: () => {}, discarded: () => {} }),
+    inbox,
     ctx,
     get status() { return status },
     send: () => {},
     followup: () => {},
     steer: () => {},
     inject(input: UserMessage) {
-      session.append('user/message', input, { surfaceOp: 'append' })
+      inbox.append('next-step', input)
     },
     cancel() {},
     whenIdle() { return Promise.resolve() },
@@ -123,37 +124,107 @@ describe('goal projection unit', () => {
     }
   })
 
+  it('does not revive a cleared goal when its create message is reinserted', async () => {
+    const bench = await harness(true)
+    const created = bench.ctx.goals.create(bench.agent, { objective: 'stay cleared' })
+    const createMessage = bench.agent.inbox.nextStep.find(message => message.source.kind === 'goal'
+      && message.source.change?.operation === 'create')
+    if (createMessage === undefined) throw new Error('missing create message')
+    bench.ctx.goals.clear(bench.agent, created)
+
+    bench.agent.inbox.claim('next-step')
+    bench.agent.inbox.prepend('next-step', createMessage)
+
+    expect(bench.tailValues().goal).toBeNull()
+    expect(foldGoal(bench.session.events).goal).toBeUndefined()
+  })
+
+  it('does not regress a goal revision when its create message is reinserted', async () => {
+    const bench = await harness(true)
+    const created = bench.ctx.goals.create(bench.agent, { objective: 'first revision' })
+    const createMessage = bench.agent.inbox.nextStep.find(message => message.source.kind === 'goal'
+      && message.source.change?.operation === 'create')
+    if (createMessage === undefined) throw new Error('missing create message')
+    const edited = bench.ctx.goals.edit(bench.agent, created, { objective: 'second revision' })
+
+    bench.agent.inbox.claim('next-step')
+    bench.agent.inbox.prepend('next-step', createMessage)
+
+    expect(bench.tailValues().goal).toMatchObject({
+      goal: { revision: edited.revision, objective: 'second revision' },
+    })
+    expect(foldGoal(bench.session.events).goal).toMatchObject({
+      revision: edited.revision,
+      objective: 'second revision',
+    })
+  })
+
   it('ignores non-goal and malformed goal-shaped events fail-soft (same reference)', () => {
     // The package invariant rejects a violating stream loudly wherever it is
     // installed — the unit itself must never throw on the projection drive
     // (a throwing apply would tear down every registered unit's drive), so
     // its transition is exercised directly as the pure function it is.
-    const user = { type: 'user/message', seq: 0, time: 1, data: createUserMessage({
+    const plainUser = createUserMessage({
       content: [{ type: 'text', text: 'hi' }],
       source: { kind: 'user' },
-    }) } as never
-    expect(applyGoalProjection(null, user)).toBeNull()
+    })
+    const user = { type: 'user/message', seq: 0, time: 1, data: plainUser } as never
+    const state = { goal: { id: 'g1', revision: 1, objective: 'x', phase: 'active', maxGoalRounds: 4 }, roundsStarted: 0, createdAt: 1, updatedAt: 1 } as never
+    const empty = [null, []] as const
+    expect(applyGoalProjection(empty, user)).toBe(empty)
+    const queuedUser = {
+      type: 'agent/inbox/spliced', seq: 1, time: 2,
+      data: { target: 'next-step', start: 0, inserted: [plainUser] },
+    } as never
+    const current = [state, []] as const
+    expect(applyGoalProjection(current, queuedUser)).toBe(current)
 
-    const malformed = { type: 'user/message', seq: 1, time: 2, data: createUserMessage({
+    const malformedMessage = createUserMessage({
       content: [{ type: 'text', text: 'broken' }],
       source: { kind: 'goal', goalId: 'g-broken', revision: 1, round: 0 } as never,
-    }) } as never
-    const state = { goal: { id: 'g1', revision: 1, objective: 'x', phase: 'active', maxGoalRounds: 4 }, roundsStarted: 0, createdAt: 1, updatedAt: 1 } as never
+    })
+    const malformed = { type: 'user/message', seq: 1, time: 2, data: malformedMessage } as never
     // Same-reference return: the registry's Object.is gate sees no change.
-    expect(applyGoalProjection(state, malformed)).toBe(state)
-    expect(applyGoalProjection(null, malformed)).toBeNull()
+    expect(applyGoalProjection(current, malformed)).toBe(current)
+    expect(applyGoalProjection(empty, malformed)).toBe(empty)
+    const queuedMalformed = {
+      type: 'agent/inbox/spliced', seq: 2, time: 3,
+      data: { target: 'next-step', start: 0, inserted: [malformedMessage] },
+    } as never
+    expect(applyGoalProjection(current, queuedMalformed)).toBe(current)
+
+    const queuedRound = {
+      type: 'agent/inbox/spliced', seq: 3, time: 4,
+      data: { target: 'next-step', start: 0, inserted: [createUserMessage({
+        content: [{ type: 'text', text: 'later round' }],
+        source: { kind: 'goal', goalId: 'g1', revision: 1, round: 1 } as never,
+      })] },
+    } as never
+    expect(applyGoalProjection(current, queuedRound)).toBe(current)
+
+    const validGoalUser = { type: 'user/message', seq: 2, time: 3, data: createUserMessage({
+      content: [{ type: 'text', text: 'legacy direct change' }],
+      source: { kind: 'goal', goalId: 'g1', revision: 1, round: 0, change: { kind: 'goal/change' } } as never,
+    }) } as never
+    expect(applyGoalProjection(empty, validGoalUser)).toBe(empty)
 
     // A non-message event (the registry drives EVERY committed event through
     // apply): early same-reference return.
     const turnStart = { type: 'turn/start', seq: 3, time: 4, data: { turn: 1 } } as never
-    expect(applyGoalProjection(state, turnStart)).toBe(state)
+    expect(applyGoalProjection(current, turnStart)).toBe(current)
 
     // A round-zero goal source whose change carries a foreign kind: same posture.
-    const foreignKind = { type: 'user/message', seq: 2, time: 3, data: createUserMessage({
+    const foreignMessage = createUserMessage({
       content: [{ type: 'text', text: 'foreign' }],
       source: { kind: 'goal', goalId: 'g1', revision: 1, round: 0, change: { kind: 'not-a-goal-change' } } as never,
-    }) } as never
-    expect(applyGoalProjection(state, foreignKind)).toBe(state)
+    })
+    const foreignKind = { type: 'user/message', seq: 2, time: 3, data: foreignMessage } as never
+    expect(applyGoalProjection(current, foreignKind)).toBe(current)
+    const queuedForeignKind = {
+      type: 'agent/inbox/spliced', seq: 4, time: 5,
+      data: { target: 'next-step', start: 0, inserted: [foreignMessage] },
+    } as never
+    expect(applyGoalProjection(current, queuedForeignKind)).toBe(current)
   })
 
   it('has no goal key when the goal service is not composed', async () => {
diff --git a/packages/goal/tool-goal/README.i18n.yaml b/packages/goal/tool-goal/README.i18n.yaml
index 3b9dd9f964..e4c9fa59d5 100644
--- a/packages/goal/tool-goal/README.i18n.yaml
+++ b/packages/goal/tool-goal/README.i18n.yaml
@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/goal/tool-goal/README.md
-README.md: aaed61dd517aeb2f94efa22c34c64d1068155d46
-README.zh.md: 5365b64ef65fb3d3f00e19357327479ebd8285a8
+README.md: a4742e4117ca89f4395a1c59264f6ea6c3ab8b96
+README.zh.md: 48e89332db7dfbe746d1ba4e57077eb787a10a66
diff --git a/packages/goal/tool-goal/README.md b/packages/goal/tool-goal/README.md
index aaed61dd51..a4742e4117 100644
--- a/packages/goal/tool-goal/README.md
+++ b/packages/goal/tool-goal/README.md
@@ -61,15 +61,15 @@ Prefix-stable while the plugin scope, configured threshold, and guidance text ar
 
 #### What the model sees
 
-The generated [`get_goal`, `create_goal`, and `update_goal` schemas](../../../docs/tool-catalog.md#deepseek-aidsh-tool-goal). Successful results are compact JSON. Mutation results are followed by the goal domain's raw `<goal_state>` snapshot after the tool batch. `activation` in a result is a live observation and never becomes replay authority.
+The generated [`get_goal`, `create_goal`, and `update_goal` schemas](../../../docs/tool-catalog.md#deepseek-aidsh-tool-goal). Successful results are compact JSON. A mutation queues the goal domain's raw `<goal_state>` snapshot after the tool batch; a later pre-step may admit it, while discarding the queued context does not roll back the durable mutation. `activation` in a result is a live observation and never becomes replay authority.
 
 #### Token effect
 
-Fixed schema cost plus one compact result per call. Mutations also retain the domain snapshot until compaction.
+Fixed schema cost plus one compact result per call. An admitted mutation context retains the domain snapshot until compaction; one discarded before admission adds no model tokens.
 
 #### KV Cache effect
 
-Schemas are prefix-stable while their definitions and visibility are unchanged. Calls, results, and resulting goal snapshots append after the reusable request prefix without invalidating earlier entries.
+Schemas are prefix-stable while their definitions and visibility are unchanged. Calls, results, and admitted goal snapshots append after the reusable request prefix without invalidating earlier entries.
 
 ## Known Limitations and Deferred Work
 
diff --git a/packages/goal/tool-goal/README.zh.md b/packages/goal/tool-goal/README.zh.md
index 5365b64ef6..48e89332db 100644
--- a/packages/goal/tool-goal/README.zh.md
+++ b/packages/goal/tool-goal/README.zh.md
@@ -61,15 +61,15 @@ Use goal tools for one long-running completion objective in the current session.
 
 #### 模型看到的内容
 
-生成的 [`get_goal`、`create_goal` 和 `update_goal` schema](../../../docs/tool-catalog.md#deepseek-aidsh-tool-goal)。成功结果是紧凑 JSON。变更结果之后是工具批次结束后由 goal 领域产生的原始 `<goal_state>` 快照。结果中的 `activation` 是实时观察值，绝不会成为回放权限依据。
+生成的 [`get_goal`、`create_goal` 和 `update_goal` schema](../../../docs/tool-catalog.md#deepseek-aidsh-tool-goal)。成功结果是紧凑 JSON。变更会在工具批次结束后将 goal 领域的原始 `<goal_state>` 快照排队；后续 pre-step 可以准入它，而丢弃已排队的上下文不会回滚持久变更。结果中的 `activation` 是实时观察值，绝不会成为回放权限依据。
 
 #### Token 影响
 
-固定 schema 成本，加上每次调用的一条紧凑结果。变更还会保留领域快照，直到压缩（compaction）。
+固定 schema 成本，加上每次调用的一条紧凑结果。获准的变更上下文会保留领域快照，直到压缩（compaction）；准入前被丢弃的上下文不增加模型 token。
 
 #### KV Cache 影响
 
-schema 的定义与可见性不变时，前缀保持稳定。调用、结果和生成的 goal 快照会追加到可复用请求前缀之后，不会使更早条目失效。
+schema 的定义与可见性不变时，前缀保持稳定。调用、结果和已准入的 goal 快照会追加到可复用请求前缀之后，不会使更早条目失效。
 
 ## 已知限制与暂缓事项
 
diff --git a/packages/goal/tool-goal/tests/tool-goal.spec.ts b/packages/goal/tool-goal/tests/tool-goal.spec.ts
index 5aec15f675..e0f3c697aa 100644
--- a/packages/goal/tool-goal/tests/tool-goal.spec.ts
+++ b/packages/goal/tool-goal/tests/tool-goal.spec.ts
@@ -21,7 +21,7 @@ interface StubAgent {
   setStatus(status: AgentStatus): void
 }
 
-/** Build one registry-compatible live agent whose injections append in place. */
+/** Build one registry-compatible live agent whose injections enter the durable inbox. */
 function stubAgent(rawId: string, supplied?: Session): StubAgent {
   const session = supplied ?? new Session(SessionId(rawId))
   let status: AgentStatus = 'running'
@@ -36,7 +36,7 @@ function stubAgent(rawId: string, supplied?: Session): StubAgent {
     followup: () => {},
     steer: () => {},
     inject(input) {
-      session.append('user/message', input, { surfaceOp: 'append' })
+      this.inbox.append('next-step', input)
     },
     cancel() {},
     whenIdle() { return Promise.resolve() },
@@ -49,11 +49,17 @@ function openTurn(stub: StubAgent, source: MessageSource, text = 'prompt'): numb
   const turn = stub.session.events
     .filter(event => event.type === 'turn/start')
     .reduce((max, event) => Math.max(max, event.data.turn), 0) + 1
-  stub.session.append('turn/start', { turn })
-  stub.session.append('user/message', createUserMessage({
+  const message = createUserMessage({
     content: [{ type: 'text', text }],
     source,
-  }), { surfaceOp: 'append' })
+  })
+  stub.agent.inbox.append('next-turn', message)
+  const claimed = stub.agent.inbox.claim('next-turn')
+  if (claimed.length === 0) throw new Error('expected queued turn input')
+  stub.session.append('turn/start', { turn })
+  for (const admitted of claimed) {
+    stub.session.append('user/message', admitted, { surfaceOp: 'append' })
+  }
   return turn
 }
 
diff --git a/packages/hooks/hooks-claude/tests/coverage-cases.ts b/packages/hooks/hooks-claude/tests/coverage-cases.ts
index 3fa945a63c..fbbfb5b5d7 100644
--- a/packages/hooks/hooks-claude/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-claude/tests/coverage-cases.ts
@@ -110,7 +110,7 @@ export function defineCoverageCases(group: CoverageGroup): void {
       agent.followup(createUserMessage({ content: [{ type: 'text', text: 'go' }], source: { kind: 'user' } }))
       await waitForIdle(ctx, agent)
       expect(existsSync(marker)).toBe(true) // substituted command ran
-    })
+    }, 15_000) // Real agent and hook subprocess startup can exceed Vitest's default under coverage concurrency.
 
     it('warns and honors updatedInput as a no-op (input rewrite deferred)', async () => {
       const d = dir()
diff --git a/packages/hooks/hooks-codex/tests/bridge.spec.ts b/packages/hooks/hooks-codex/tests/bridge.spec.ts
index 3e9ae5617a..51bf2464f6 100644
--- a/packages/hooks/hooks-codex/tests/bridge.spec.ts
+++ b/packages/hooks/hooks-codex/tests/bridge.spec.ts
@@ -103,7 +103,7 @@ describe('hooks-codex bridge', () => {
 
     expect(adapter.requests).toHaveLength(2)
     expect(JSON.stringify(adapter.requests[1]!.messages)).toContain('keep going: address the goal')
-  })
+  }, 15_000) // Two real hook subprocesses and agent steps need startup and teardown headroom under load.
 
   it('turn cancellation aborts and reaps a running UserPromptSubmit hook before idle', async () => {
     const dir = configDir()
diff --git a/packages/hooks/hooks-codex/tests/coverage-cases.ts b/packages/hooks/hooks-codex/tests/coverage-cases.ts
index 32bb2aed4e..6ef51629ca 100644
--- a/packages/hooks/hooks-codex/tests/coverage-cases.ts
+++ b/packages/hooks/hooks-codex/tests/coverage-cases.ts
@@ -199,7 +199,7 @@ export function defineCoverageCases(groups: CoverageGroup | readonly CoverageGro
       expect(result?.type === 'tool/result' && result.data.message.content[0].isError).toBe(true)
       expect(result?.type === 'tool/result' && result.data.message.content[0].content.some(b => b.type === 'text' && b.text.includes('downstream-block'))).toBe(true)
       expect(events(agent).some(e => e.type === 'user/message' && e.data.source.kind !== 'user' && e.data.content.some(b => b.type === 'text' && b.text.includes('bridge-note')))).toBe(true)
-    })
+    }, 10_000) // The real hook subprocess needs startup and teardown headroom under full-suite contention.
 
     it('SessionStart additionalContext is injected for the first request', async () => {
       const d = dir()
diff --git a/packages/host/directory-picker-browse/tests/client-flow.spec.tsx b/packages/host/directory-picker-browse/tests/client-flow.spec.tsx
index 31ec5a4927..92293600f2 100644
--- a/packages/host/directory-picker-browse/tests/client-flow.spec.tsx
+++ b/packages/host/directory-picker-browse/tests/client-flow.spec.tsx
@@ -1,7 +1,7 @@
 // @vitest-environment jsdom
 import { Context } from 'cordis'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { cleanup, render, screen } from '@testing-library/react'
+import { cleanup, fireEvent, render, screen, waitFor } from '@testing-library/react'
 import { SlotsService } from '@deepseek-ai/dsh-client-runtime/client'
 import type { DirectoryListing } from '@deepseek-ai/dsh-client-runtime/client'
 import { LocaleService } from '@deepseek-ai/dsh-client-locale/client'
@@ -193,10 +193,11 @@ describe('directory-picker-browse client half', () => {
       />,
     )
     // The dialog opened at home; its confirm (browser.open) adopts the listed level.
-    const openButton = await screen.findByRole('button', { name: 'browser.open' })
-    openButton.click()
+    const openButton = screen.getByRole<HTMLButtonElement>('button', { name: 'browser.open' })
+    await waitFor(() => { expect(openButton.disabled).toBe(false) })
+    fireEvent.click(openButton)
     expect(props.onPicked).toHaveBeenCalledWith(HOME)
-    screen.getByRole('button', { name: 'browser.cancel' }).click()
+    fireEvent.click(screen.getByRole('button', { name: 'browser.cancel' }))
     expect(props.onCancel).toHaveBeenCalled()
     expect(props.onError).not.toHaveBeenCalled()
   })
diff --git a/packages/llm/llm/tests/adapter-failure.spec.ts b/packages/llm/llm/tests/adapter-failure.spec.ts
new file mode 100644
index 0000000000..d7a1de40e6
--- /dev/null
+++ b/packages/llm/llm/tests/adapter-failure.spec.ts
@@ -0,0 +1,46 @@
+import { describe, expect, it } from 'vitest'
+import { normalizeLlmFailure } from '../src/adapter-failure.ts'
+
+describe('adapter failure normalization', () => {
+  it('contains hostile non-Error coercion', () => {
+    const thrown = { [Symbol.toPrimitive]: () => { throw new Error('coercion failed') } }
+    expect(normalizeLlmFailure(thrown)).toEqual({ message: 'LLM adapter failed', code: 'UNKNOWN' })
+  })
+
+  it('contains hostile Error property reflection', () => {
+    const withFailure = new Error('provider failed') as Error & { failure: unknown; code: string }
+    withFailure.failure = { message: 'provider failed', code: 'FOREIGN' }
+    withFailure.code = 'FOREIGN'
+    const hostileCode = new Proxy(withFailure, {
+      getOwnPropertyDescriptor(target, property) {
+        if (property === 'code') throw new Error('code descriptor failed')
+        return Reflect.getOwnPropertyDescriptor(target, property)
+      },
+    })
+    expect(normalizeLlmFailure(hostileCode)).toEqual({ message: 'provider failed', code: 'UNKNOWN' })
+
+    const hostileFailure = new Proxy(new Error('provider failed'), {
+      getOwnPropertyDescriptor() { throw new Error('failure descriptor failed') },
+    })
+    expect(normalizeLlmFailure(hostileFailure)).toEqual({ message: 'provider failed', code: 'UNKNOWN' })
+  })
+
+  it('rejects malformed or accessor-backed failure snapshots', () => {
+    const malformed = new Error('provider failed') as Error & { failure: unknown; code: string }
+    malformed.failure = { message: 'provider failed', code: 'FOREIGN', requestId: '' }
+    malformed.code = 'FOREIGN'
+    expect(normalizeLlmFailure(malformed)).toEqual({ message: 'provider failed', code: 'UNKNOWN' })
+
+    const accessorBacked = new Error('provider failed') as Error & { failure: unknown }
+    accessorBacked.failure = Object.defineProperty({}, 'message', {
+      get() { throw new Error('failure getter failed') },
+    })
+    expect(normalizeLlmFailure(accessorBacked)).toEqual({ message: 'provider failed', code: 'UNKNOWN' })
+  })
+
+  it('falls back when an Error message accessor throws', () => {
+    const error = new Error('provider failed')
+    Object.defineProperty(error, 'message', { get() { throw new Error('message getter failed') } })
+    expect(normalizeLlmFailure(error)).toEqual({ message: 'LLM adapter failed', code: 'UNKNOWN' })
+  })
+})
diff --git a/packages/llm/llm/tests/service.spec.ts b/packages/llm/llm/tests/service.spec.ts
index 6136daa81a..0beac23d40 100644
--- a/packages/llm/llm/tests/service.spec.ts
+++ b/packages/llm/llm/tests/service.spec.ts
@@ -489,6 +489,23 @@ describe('LlmService', () => {
     expect(cleanupCalls).toBe(1)
   })
 
+  it('allows downstream close when an adapter iterator has no return method', async () => {
+    const adapter = new class extends LlmAdapter {
+      stream(_options: GenerateOptions): AsyncIterable<StreamChunk> {
+        return {
+          [Symbol.asyncIterator](): AsyncIterator<StreamChunk> {
+            return { next: () => Promise.resolve({ done: false, value: SCRIPT[0]! }) }
+          },
+        }
+      }
+    }()
+    const ctx = new Context()
+    await ctx.plugin(LlmService)
+    ctx.llm.registerAdapter(['test'], adapter)
+
+    for await (const _chunk of ctx.llm.stream({ provider: 'test', model: 'test', messages: [] })) break
+  })
+
   it('unregisters adapters when the owning fiber is disposed (HMR safety)', async () => {
     const ctx = new Context()
     await ctx.plugin(LlmService)
diff --git a/packages/plan/plan-mode/tests/plan-mode.spec.ts b/packages/plan/plan-mode/tests/plan-mode.spec.ts
index aecb0f77bf..585fc17a73 100644
--- a/packages/plan/plan-mode/tests/plan-mode.spec.ts
+++ b/packages/plan/plan-mode/tests/plan-mode.spec.ts
@@ -249,6 +249,15 @@ describe('ctx.planMode: get/set', () => {
 })
 
 describe('the boundary flush', () => {
+  it('is inert when no selection is pending', async () => {
+    const ctx = await setup()
+    const agent = await agentWithSession(ctx)
+    const service = ctx.planMode as unknown as { onBoundary(session: Session): void }
+
+    expect(() => { service.onBoundary(agent.session) }).not.toThrow()
+    expect(agent.session.events.some(event => event.type === 'plan/mode')).toBe(false)
+  })
+
   it('flushes from pre-step before the following step/start', async () => {
     const ctx = await setup()
     const agent = await agentWithSession(ctx)
diff --git a/packages/sdk/sdk-client/tests/sdk-client.spec.ts b/packages/sdk/sdk-client/tests/sdk-client.spec.ts
index 3717e60357..f8057b7b0f 100644
--- a/packages/sdk/sdk-client/tests/sdk-client.spec.ts
+++ b/packages/sdk/sdk-client/tests/sdk-client.spec.ts
@@ -13,6 +13,7 @@ import { afterEach, describe, expect, it } from 'vitest'
 import {
   DeepSeekHarness,
   HarnessClient,
+  HarnessSession,
   JsonRpcResponseError,
   RequestTimeoutError,
   SdkProtocolError,
@@ -53,6 +54,53 @@ async function tempDir(prefix: string): Promise<string> {
 }
 
 describe('DeepSeekHarness', () => {
+  it('ignores notifications that precede the submitted message receipt', async () => {
+    const notifications = [
+      { method: 'session.status', params: { sessionId: 'owned', status: 'running' } },
+      {
+        method: 'session.event',
+        params: {
+          sessionId: 'owned',
+          event: {
+            type: 'agent/inbox/spliced',
+            seq: 0,
+            time: 0,
+            data: {
+              target: 'next-turn',
+              start: 0,
+              inserted: [{ id: 'accepted-message', role: 'user', content: [], source: { kind: 'user' } }],
+            },
+          },
+        },
+      },
+      { method: 'session.status', params: { sessionId: 'owned', status: 'idle' } },
+    ] as HarnessNotification[]
+    let closed = false
+    const harness = {
+      start: () => Promise.resolve(),
+      client: {
+        prompt: () => Promise.resolve('accepted-message'),
+        subscribeSessionTree: () => ({
+          next: async () => {
+            const notification = notifications.shift()
+            if (notification === undefined) throw new Error('scripted notification queue exhausted')
+            return notification
+          },
+          tryNext: () => notifications.shift(),
+          close: () => { closed = true },
+          async * [Symbol.asyncIterator]() {},
+        }),
+      },
+    } as unknown as DeepSeekHarness
+
+    const result = await new HarnessSession(harness, 'owned').run('go')
+
+    expect(result.notifications.map(notification => notification.method))
+      .toEqual(['session.event', 'session.status'])
+    expect(result.events.map(event => event.type)).toEqual(['agent/inbox/spliced'])
+    expect(closed).toBe(true)
+  })
+
   it('runs a turn end to end and reuses the runtime across sessions', async () => {
     const harness = harnessWith({ FAKE_TEXT: 'turn answer' })
     const first = await harness.run('say hi')
@@ -293,9 +341,10 @@ describe('HarnessClient', () => {
 
     const all = client.subscribe()
     const idleOnly = client.subscribe(n => n.method === 'session.status' && n.params.status === 'idle')
+    const firstPending = all.next()
     await client.prompt('sub-test', normalizeInput('go'))
 
-    const first = await all.next()
+    const first = await firstPending
     expect(first.method).toBe('session.event')
     const idle = await idleOnly.next()
     expect(idle.method).toBe('session.status')
diff --git a/packages/settings/settings-local/tests/local.spec.ts b/packages/settings/settings-local/tests/local.spec.ts
index 0b753675f5..56cffc15c6 100644
--- a/packages/settings/settings-local/tests/local.spec.ts
+++ b/packages/settings/settings-local/tests/local.spec.ts
@@ -4,6 +4,7 @@ import z from 'schemastery'
 import { chmod, lstat, mkdtemp, readFile, readdir, rm, stat, symlink, writeFile } from 'node:fs/promises'
 import { tmpdir } from 'node:os'
 import { join } from 'node:path'
+import { writeFileAtomic } from '@deepseek-ai/dsh-atomic-write'
 import { settingsNamespace } from '@deepseek-ai/dsh-settings'
 import { SettingsLocal, resolveSpec } from '../src/index.ts'
 
@@ -119,7 +120,7 @@ describe('boot and reads', () => {
   it('fails loud at boot on unparsable yaml', async () => {
     const dir = await tempDir()
     const path = join(dir, 'settings.yaml')
-    await writeFile(path, 'ui-theme: [unclosed\n')
+    await writeFileAtomic(path, 'ui-theme: [unclosed\n', { mode: 0o600 })
     await expect(boot({ path, watch: false })).rejects.toThrow()
   })
 
@@ -366,7 +367,7 @@ describe('watch', () => {
     await new Promise(resolve => setTimeout(resolve, 300))
     expect(scope.get()).toEqual({ theme: 'light', fontSize: 14 })
 
-    await writeFile(path, 'ui-theme:\n  theme: dark\n')
+    await writeFileAtomic(path, 'ui-theme:\n  theme: dark\n', { mode: 0o600 })
     await vi.waitFor(() => {
       expect(scope.get().theme).toBe('dark')
     }, { timeout: 5000 })
diff --git a/packages/skill/tool-skill/tests/tool-skill.spec.ts b/packages/skill/tool-skill/tests/tool-skill.spec.ts
index 9ddf6095a1..7aff885936 100644
--- a/packages/skill/tool-skill/tests/tool-skill.spec.ts
+++ b/packages/skill/tool-skill/tests/tool-skill.spec.ts
@@ -5,10 +5,10 @@ import { tmpdir } from 'node:os'
 import { Context } from 'cordis'
 import { createUserMessage, CallId, type Message } from '@deepseek-ai/dsh-llm'
 import { createScope, type Scope } from '@deepseek-ai/dsh-scope'
-import { Session, SessionId, type SessionEvent } from '@deepseek-ai/dsh-session'
+import { Session, SessionId, type SessionEvent, type UserMessage } from '@deepseek-ai/dsh-session'
 import SystemPrompt, { renderPrompt } from '@deepseek-ai/dsh-system-prompt'
 import ToolRegistry, { defineContentToolFixture } from '@deepseek-ai/dsh-tools'
-import AgentRegistry, { agentEvents, Inbox, type Agent } from '@deepseek-ai/dsh-agent'
+import AgentRegistry, { agentEvents, Inbox, type Agent, type PreStepDecision } from '@deepseek-ai/dsh-agent'
 import SkillService from '@deepseek-ai/dsh-skill'
 import * as SkillLocal from '@deepseek-ai/dsh-skill-local'
 import * as toolSkill from '@deepseek-ai/dsh-tool-skill'
@@ -95,6 +95,20 @@ async function fireStep(ctx: Context, agent: Agent, turn: number, step: number):
   }
 }
 
+async function proposeStep(
+  ctx: Context,
+  agent: Agent,
+  messages: UserMessage[],
+): Promise<PreStepDecision> {
+  const signal = new AbortController().signal
+  return await agentEvents(ctx, agent).waterfall(
+    'agent/pre-step',
+    messages,
+    { turn: 1, step: 1, signal },
+    () => Promise.resolve({ kind: 'enter' as const, messages }),
+  )
+}
+
 function catalogMessages(session: Session): Extract<SessionEvent, { type: 'user/message' }>[] {
   return session.events.filter((event): event is Extract<SessionEvent, { type: 'user/message' }> => event.type === 'user/message'
     && event.data.source.kind === 'plugin'
@@ -334,6 +348,60 @@ describe('dsh-tool-skill', () => {
     expect(catalogMessages(session)).toEqual([])
   })
 
+  it('deduplicates or replaces a catalog already proposed for the same step', async () => {
+    const home = await tempDir('tool-proposed-catalog')
+    const ctx = await setup(home)
+    const disposeFirst = ctx.skills.register({
+      name: 'first-skill',
+      description: 'First skill',
+      source: 'runtime',
+      content: 'First body.',
+    })
+    const session = new Session(SessionId('proposed-catalog'))
+    const agent = sessionAgent(session)
+    openMessageTurn(session)
+    await fireStep(ctx, agent, 1, 1)
+    const initial = catalogMessages(session)[0]?.data
+    if (initial === undefined) throw new Error('expected initial catalog')
+
+    const duplicate = await proposeStep(ctx, agent, [initial])
+    expect(duplicate).toEqual({ kind: 'enter', messages: [] })
+
+    ctx.skills.register({
+      name: 'second-skill',
+      description: 'Second skill',
+      source: 'runtime',
+      content: 'Second body.',
+    })
+    const companion = createUserMessage({
+      content: [{ type: 'text', text: 'keep this message' }],
+      source: { kind: 'user' },
+    })
+    const replaced = await proposeStep(ctx, agent, [companion, initial])
+    expect(replaced.kind).toBe('enter')
+    if (replaced.kind === 'reject') throw new Error('expected catalog replacement')
+    expect(replaced.messages).toHaveLength(2)
+    expect(replaced.messages[0]).toBe(companion)
+    expect(replaced.messages[1]?.id).not.toBe(initial.id)
+    expect(JSON.stringify(replaced.messages[1]?.content)).toContain('second-skill')
+
+    disposeFirst()
+  })
+
+  it('removes a stale proposed catalog before the first empty baseline', async () => {
+    const home = await tempDir('tool-proposed-empty-catalog')
+    const ctx = await setup(home)
+    const session = new Session(SessionId('proposed-empty-catalog'))
+    const stale = createUserMessage({
+      content: catalogContent(['- `stale-skill`: Stale skill']),
+      source: { kind: 'plugin', plugin: 'dsh-tool-skill' },
+    })
+
+    const decision = await proposeStep(ctx, sessionAgent(session), [stale])
+
+    expect(decision).toEqual({ kind: 'enter', messages: [] })
+  })
+
   it('injects complete replacement catalogs for additions and an empty tombstone for removals', async () => {
     const home = await tempDir('tool-dynamic-catalog')
     const ctx = await setup(home)
diff --git a/packages/subagent/subagent-dsh-sdk/tests/subagent-dsh-sdk.spec.ts b/packages/subagent/subagent-dsh-sdk/tests/subagent-dsh-sdk.spec.ts
index 074d17f06b..ae49b994ae 100644
--- a/packages/subagent/subagent-dsh-sdk/tests/subagent-dsh-sdk.spec.ts
+++ b/packages/subagent/subagent-dsh-sdk/tests/subagent-dsh-sdk.spec.ts
@@ -165,6 +165,17 @@ describe('dsh-subagent-dsh-sdk provider', () => {
     await ctx.fiber.dispose()
   })
 
+  it('keeps streamed text when a malformed final message prevents completion', async () => {
+    const ctx = await setup({ FAKE_MALFORMED_MESSAGE: '1', FAKE_TEXT: 'stream-only answer' })
+    const run = await ctx.subagents.start('dsh-sdk', request())
+    const result = await run.result
+
+    expect(result.stopReason).toBe('error')
+    expect(text(result.output)).toBe('stream-only answer')
+    await run.dispose()
+    await ctx.fiber.dispose()
+  })
+
   it('reports a settled-without-turn child as an error', async () => {
     const ctx = await setup({ FAKE_REASON_KIND: 'none', FAKE_STATUS: 'error' })
     const run = await ctx.subagents.start('dsh-sdk', request())
diff --git a/packages/support/acp-snapshot/src/harness.ts b/packages/support/acp-snapshot/src/harness.ts
index 8f562be7e3..ca2c67f692 100644
--- a/packages/support/acp-snapshot/src/harness.ts
+++ b/packages/support/acp-snapshot/src/harness.ts
@@ -50,6 +50,7 @@ const WAIT_POLL_INTERVAL_MS = 10
  * `waitForTurnStart` waits for an open durable turn, optionally at or beyond a
  * specified turn number. `waitForTurnEnd` holds the subprocess open until the
  * selected session's latest complete raw-JSONL turn boundary is `turn/end`.
+ * `waitForInboxMessage` waits for inserted inbox text containing a scenario marker.
  * `waitForTitleAfterTurnEnd` additionally waits for a later durable title.
  * A standalone `cancel` may also wait for a cwd-relative readiness marker.
  * All wait timeouts default to 10s.
@@ -68,6 +69,7 @@ export type InputStep =
   }
   | { op: 'waitForTurnStart'; minimumTurn?: number; timeoutMs?: number }
   | { op: 'waitForTurnEnd'; timeoutMs?: number }
+  | { op: 'waitForInboxMessage'; text: string; timeoutMs?: number }
   | { op: 'waitForTitleAfterTurnEnd'; timeoutMs?: number }
   | { op: 'cancel'; waitForFile?: { path: string; timeoutMs?: number } }
 
@@ -290,6 +292,7 @@ export async function runScenario(input: InputScript, opts: RunOptions): Promise
         (id) => { sessionId = id },
         (id, timeoutMs, minimumTurn) => waitForPersistedTurnStart(sessionsRoot, id, timeoutMs, minimumTurn),
         (id, timeoutMs) => waitForPersistedTurnEnd(sessionsRoot, id, timeoutMs),
+        (id, text, timeoutMs) => waitForPersistedInboxMessage(sessionsRoot, id, text, timeoutMs),
         (id, timeoutMs) => waitForPersistedTitleAfterTurnEnd(sessionsRoot, id, timeoutMs),
       )
       // A permission exchange happens while a step's request is in flight, so
@@ -364,6 +367,7 @@ async function runStep(
   setSessionId: (id: string) => void,
   waitForTurnStart: (sessionId: string, timeoutMs?: number, minimumTurn?: number) => Promise<void>,
   waitForTurnEnd: (sessionId: string, timeoutMs?: number) => Promise<void>,
+  waitForInboxMessage: (sessionId: string, text: string, timeoutMs?: number) => Promise<void>,
   waitForTitleAfterTurnEnd: (sessionId: string, timeoutMs?: number) => Promise<void>,
 ): Promise<void> {
   switch (step.op) {
@@ -442,6 +446,12 @@ async function runStep(
       await waitForTurnEnd(sessionId, step.timeoutMs)
       return
     }
+    case 'waitForInboxMessage': {
+      const sessionId = getSessionId()
+      if (sessionId === undefined) throw new Error('snapshot-harness: waitForInboxMessage before newSession')
+      await waitForInboxMessage(sessionId, step.text, step.timeoutMs)
+      return
+    }
     case 'waitForTitleAfterTurnEnd': {
       const sessionId = getSessionId()
       if (sessionId === undefined) throw new Error('snapshot-harness: waitForTitleAfterTurnEnd before newSession')
@@ -515,6 +525,29 @@ async function waitForPersistedTurnEnd(
   }, { interval: WAIT_POLL_INTERVAL_MS, timeout: timeoutMs })
 }
 
+/** Wait until an inserted inbox message contains scenario-owned text. */
+async function waitForPersistedInboxMessage(
+  root: string,
+  sessionId: string,
+  text: string,
+  timeoutMs = DEFAULT_WAIT_TIMEOUT_MS,
+): Promise<void> {
+  await vi.waitFor(async () => {
+    const log = (await harvestSessionLogs(root)).find(candidate => candidate.id === sessionId)
+    const matched = log?.content.split('\n').some((line) => {
+      if (line.length === 0) return false
+      const record = JSON.parse(line) as {
+        type?: unknown
+        data?: { inserted?: Array<{ content?: Array<{ type?: unknown; text?: unknown }> }> }
+      }
+      return record.type === 'agent/inbox/spliced' && record.data?.inserted?.some(message =>
+        message.content?.some(block => block.type === 'text'
+          && typeof block.text === 'string' && block.text.includes(text))) === true
+    }) ?? false
+    if (!matched) throw new Error(`snapshot-harness: session "${sessionId}" did not persist expected inbox message within ${timeoutMs}ms`)
+  }, { interval: WAIT_POLL_INTERVAL_MS, timeout: timeoutMs })
+}
+
 /** Wait until a complete provider or fallback title record follows the latest closed turn. */
 async function waitForPersistedTitleAfterTurnEnd(
   root: string,
diff --git a/packages/support/acp-snapshot/tests/harness.spec.ts b/packages/support/acp-snapshot/tests/harness.spec.ts
index 531eedd4b4..bb73e6cdcb 100644
--- a/packages/support/acp-snapshot/tests/harness.spec.ts
+++ b/packages/support/acp-snapshot/tests/harness.spec.ts
@@ -584,6 +584,55 @@ describe('runScenario', () => {
     expect(result.sessionLogs[0]?.content).toContain('"type":"turn/end"')
   })
 
+  it('waitForInboxMessage holds the app through a matching durable insertion', { timeout: 20_000 }, async () => {
+    const { fixtureFile } = await scenario({
+      prompt: 'hang-until-cancel',
+      persistLogsOnCancel: true,
+      logs: [{
+        file: 'project/main/session.jsonl',
+        lines: [
+          { type: 'session', version: 0, id: '{{SID}}', createdAt: 1, delegationDepth: 0 },
+          {
+            type: 'agent/inbox/spliced',
+            seq: 0,
+            time: 2,
+            data: {
+              target: 'next-turn',
+              start: 0,
+              inserted: [{ role: 'user', content: [{ type: 'text', text: 'durable marker' }] }],
+            },
+          },
+        ],
+      }],
+    })
+    const result = await runScenario(
+      { steps: [...boot, { op: 'promptAndCancel', text: 'hang' }, { op: 'waitForInboxMessage', text: 'marker' }] },
+      { agent: AGENT, mode: 'replay', fixtureFile },
+    )
+    expect(result.sessionLogs[0]?.content).toContain('durable marker')
+  })
+
+  it('waitForInboxMessage times out when the session log or matching insertion is absent', { timeout: 20_000 }, async () => {
+    const absent = await scenario({ prompt: 'hang-until-cancel', persistLogsOnCancel: true })
+    await expect(runScenario(
+      { steps: [...boot, { op: 'promptAndCancel', text: 'hang' }, { op: 'waitForInboxMessage', text: 'missing', timeoutMs: 20 }] },
+      { agent: AGENT, mode: 'replay', fixtureFile: absent.fixtureFile },
+    )).rejects.toThrow(/did not persist expected inbox message within 20ms/)
+
+    const unmatched = await scenario({
+      prompt: 'hang-until-cancel',
+      persistLogsOnCancel: true,
+      logs: [{
+        file: 'project/main/session.jsonl',
+        lines: [{ type: 'session', version: 0, id: '{{SID}}', createdAt: 1, delegationDepth: 0 }],
+      }],
+    })
+    await expect(runScenario(
+      { steps: [...boot, { op: 'promptAndCancel', text: 'hang' }, { op: 'waitForInboxMessage', text: 'missing', timeoutMs: 20 }] },
+      { agent: AGENT, mode: 'replay', fixtureFile: unmatched.fixtureFile },
+    )).rejects.toThrow(/did not persist expected inbox message within 20ms/)
+  })
+
   it('waitForTitleAfterTurnEnd holds the app through a standalone durable title', { timeout: 20_000 }, async () => {
     const { fixtureFile } = await scenario({
       prompt: 'hang-until-cancel',
@@ -872,6 +921,7 @@ describe('runScenario', () => {
     [{ op: 'promptAndCancel', text: 'x' }, /promptAndCancel before newSession/],
     [{ op: 'waitForTurnStart' }, /waitForTurnStart before newSession/],
     [{ op: 'waitForTurnEnd' }, /waitForTurnEnd before newSession/],
+    [{ op: 'waitForInboxMessage', text: 'marker' }, /waitForInboxMessage before newSession/],
     [{ op: 'waitForTitleAfterTurnEnd' }, /waitForTitleAfterTurnEnd before newSession/],
     [{ op: 'cancel' }, /cancel before newSession/],
   ] as [InputStep, RegExp][])('rejects %j before newSession', { timeout: 20_000 }, async (step, message) => {
diff --git a/packages/support/llm-replay/src/index.ts b/packages/support/llm-replay/src/index.ts
index bfb9859415..adee7af7bf 100644
--- a/packages/support/llm-replay/src/index.ts
+++ b/packages/support/llm-replay/src/index.ts
@@ -173,9 +173,10 @@ export function parseSessionHeader(text: string): { id: string; createdAt: numbe
 /**
  * Reconstruct the per-`stream()` replay script from a recorded session log.
  *
- * Groups `assistant/chunk` events by turn and step. Every group must end in a
- * `finish`; a missing terminator means the live stream threw, so derivation
- * rejects and the scenario must provide an explicit override.
+ * Splits `assistant/chunk` events at every `finish`, using turn and step changes
+ * to detect an unterminated prior call. A missing terminator means the live
+ * stream threw, so derivation rejects and the scenario must provide an explicit
+ * override. Multiple calls may share one turn and step when the loop retries.
  * @param events - the recorded session's events; only `assistant/chunk` is consulted.
  * @returns one `chunks` entry per recorded model call, in call order.
  */
@@ -197,14 +198,16 @@ export function deriveReplayScript(events: SessionEvent[]): ReplayEntry[] {
     if (event.type !== 'assistant/chunk') continue
     const { turn, step, chunk } = event.data
     const key = `${turn}/${step}`
-    if (key !== currentKey) {
-      // A new (turn, step) — i.e. a new stream() call. Close the previous one
-      // (skip the initial empty buffer before any chunk has been seen).
+    if (current.length > 0 && key !== currentKey) {
       close(currentKey, current)
-      currentKey = key
+    }
+    if (current.length === 0) currentKey = key
+    current.push(chunk)
+    if (chunk.type === 'finish') {
+      close(currentKey, current)
+      currentKey = undefined
       current = []
     }
-    current.push(chunk)
   }
   close(currentKey, current)
   return script
diff --git a/packages/support/llm-replay/tests/llm-replay.spec.ts b/packages/support/llm-replay/tests/llm-replay.spec.ts
index 86e45529a8..5fa3cf75e3 100644
--- a/packages/support/llm-replay/tests/llm-replay.spec.ts
+++ b/packages/support/llm-replay/tests/llm-replay.spec.ts
@@ -106,11 +106,27 @@ describe('parseSessionLog', () => {
 })
 
 describe('deriveReplayScript', () => {
-  it('groups assistant/chunk by (turn, step) into one entry per stream() call', () => {
+  it('groups one finished assistant/chunk stream into one replay entry', () => {
     const events: SessionEvent[] = TEXT_CHUNKS.map((c, i) => chunkEvent(i + 1, 1, 1, c))
     expect(deriveReplayScript(events)).toEqual([{ kind: 'chunks', chunks: TEXT_CHUNKS }])
   })
 
+  it('separates retry calls that share one turn and step at their finish chunks', () => {
+    const failed: StreamChunk[] = [
+      { type: 'usage', usage: { inputTokens: 0, outputTokens: 0 } },
+      { type: 'finish', reason: { kind: 'error', failure: { message: 'empty', code: 'EMPTY_RESPONSE' } } },
+    ]
+    let seq = 1
+    const events: SessionEvent[] = [
+      ...failed.map(chunk => chunkEvent(seq++, 1, 1, chunk)),
+      ...TEXT_CHUNKS.map(chunk => chunkEvent(seq++, 1, 1, chunk)),
+    ]
+    expect(deriveReplayScript(events)).toEqual([
+      { kind: 'chunks', chunks: failed },
+      { kind: 'chunks', chunks: TEXT_CHUNKS },
+    ])
+  })
+
   it('produces one entry per distinct (turn, step), in log order', () => {
     const callA = TEXT_CHUNKS
     const callB: StreamChunk[] = [
@@ -177,6 +193,14 @@ describe('deriveReplayScript', () => {
     ]
     expect(() => deriveReplayScript(events)).toThrow(/2\/3/)
   })
+
+  it('rejects an unfinished call before consuming chunks from a new step', () => {
+    const events: SessionEvent[] = [
+      chunkEvent(1, 1, 1, { type: 'block-start', index: 0, blockType: 'text' }),
+      chunkEvent(2, 1, 2, { type: 'finish', reason: { kind: 'stop' } }),
+    ]
+    expect(() => deriveReplayScript(events)).toThrow(/model call 1\/1 ended without a finish chunk/)
+  })
 })
 
 describe('loadReplayScript', () => {
diff --git a/packages/ui/tui/src/components/dialogs.ts b/packages/ui/tui/src/components/dialogs.ts
index 003b185db4..ccb796ee61 100644
--- a/packages/ui/tui/src/components/dialogs.ts
+++ b/packages/ui/tui/src/components/dialogs.ts
@@ -459,7 +459,7 @@ function resumeTurnLabel(snapshot: SessionLogSnapshot): string {
   const reason = event.data.reason
   switch (reason.kind) {
     case 'completed': return `turn ${event.data.turn}: completed`
-    case 'aborted': return `turn ${event.data.turn}: cancelled`
+    case 'aborted': return `turn ${event.data.turn}: ${reason.reason.kind === 'disposed' ? 'disposed' : 'cancelled'}`
     case 'error': return `turn ${event.data.turn}: error`
     case 'max-tokens': return `turn ${event.data.turn}: max tokens`
     case 'interrupted': return `turn ${event.data.turn}: interrupted`
diff --git a/packages/ui/tui/src/index.ts b/packages/ui/tui/src/index.ts
index 9b2162d7a9..153c21cd8a 100644
--- a/packages/ui/tui/src/index.ts
+++ b/packages/ui/tui/src/index.ts
@@ -664,6 +664,16 @@ export function createTuiChat(
     chat.addChild(streaming.timing)
   }
 
+  const trailAssistantStep = (): void => {
+    if (streaming === undefined) return
+    for (const child of [streaming, streaming.timing]) {
+      const index = chat.children.indexOf(child)
+      /* v8 ignore next -- an open step keeps both assistant children attached until it settles or retracts. */
+      if (index >= 0) chat.children.splice(index, 1)
+      chat.addChild(child)
+    }
+  }
+
   const renderEvent = (
     event: SessionEvent,
     options: {
@@ -682,6 +692,7 @@ export function createTuiChat(
           if (references !== undefined) {
             chat.addChild(new Spacer(1))
             chat.addChild(new Text(palette.dim(`Referenced sessions · ${references.map(displayText).join(', ')}`), 0, 0))
+            trailAssistantStep()
             break
           }
           const text = contentText(event.data.content).trim()
@@ -701,6 +712,7 @@ export function createTuiChat(
             chat.addChild(new Spacer(1))
             chat.addChild(card)
           }
+          trailAssistantStep()
           break
         }
         const text = displayText(contentText(event.data.content).trim())
@@ -709,6 +721,7 @@ export function createTuiChat(
           chat.addChild(new UserMessageComponent(text, palette, mdTheme))
           if (options.addHistory) editor.addToHistory(text)
         }
+        trailAssistantStep()
         break
       }
       case 'steering/message': {
@@ -799,7 +812,9 @@ export function createTuiChat(
             break
           }
           case 'aborted':
-            appendNotice('Turn cancelled.', 'warning')
+            appendNotice(reason.reason.kind === 'disposed'
+              ? 'Turn stopped: the agent was disposed.'
+              : 'Turn cancelled.', 'warning')
             break
           case 'max-tokens':
             appendNotice('The model reached its output-token limit.', 'warning')
diff --git a/packages/ui/tui/tests/snapshots/conversation-streaming.expected.txt b/packages/ui/tui/tests/snapshots/conversation-streaming.expected.txt
index 98c0d359d2..5f5760cb5e 100644
--- a/packages/ui/tui/tests/snapshots/conversation-streaming.expected.txt
+++ b/packages/ui/tui/tests/snapshots/conversation-streaming.expected.txt
@@ -11,26 +11,26 @@ viewport
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                       "
-  style 0-8 fg=bright-magenta bold underline
-5| "Reasoning                                                                                       "
-  style 0-8 dim italic
-6| "Inspecting width and styles.                                                                    "
-  style 0-27 dim italic
-7| "Streaming visible state…                                                                        "
-  style 10-22 bold
-8| "                                                                                                "
-9| "ts                                                                                              "
-  style 0-1 dim
-10| "  const visible = true                                                                          "
-  style 2-21 fg=cyan
-11| "                                                                                                "
-12| "Model wait 1.0s · Thinking 2.0s                                                                 "
-  style 0-30 dim
-13| <blank>
-14| "You                                                                                             "
+4| "You                                                                                             "
   style 0-2 fg=bright-magenta bold underline
-15| "Show the live update.                                                                           "
+5| "Show the live update.                                                                           "
+6| <blank>
+7| "Assistant                                                                                       "
+  style 0-8 fg=bright-magenta bold underline
+8| "Reasoning                                                                                       "
+  style 0-8 dim italic
+9| "Inspecting width and styles.                                                                    "
+  style 0-27 dim italic
+10| "Streaming visible state…                                                                        "
+  style 10-22 bold
+11| "                                                                                                "
+12| "ts                                                                                              "
+  style 0-1 dim
+13| "  const visible = true                                                                          "
+  style 2-21 fg=cyan
+14| "                                                                                                "
+15| "Model wait 1.0s · Thinking 2.0s                                                                 "
+  style 0-30 dim
 16| <blank>
 17| "/workspace/project (tui-staging)  deepseek-v4-flash  ↑0 ↓0  0% context"
   style 0-17 fg=bright-magenta bold
diff --git a/packages/ui/tui/tests/snapshots/status-diagnostics-narrow.expected.txt b/packages/ui/tui/tests/snapshots/status-diagnostics-narrow.expected.txt
index 4c9a87c57d..8897eb7fec 100644
--- a/packages/ui/tui/tests/snapshots/status-diagnostics-narrow.expected.txt
+++ b/packages/ui/tui/tests/snapshots/status-diagnostics-narrow.expected.txt
@@ -11,15 +11,15 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                               "
-  style 0-8 fg=bright-magenta bold underline
-5| "Session inspected.                                      "
-6| "Model wait 0.0s                                         "
-  style 0-14 dim
-7| <blank>
-8| "You                                                     "
+4| "You                                                     "
   style 0-2 fg=bright-magenta bold underline
-9| "inspect this session                                    "
+5| "inspect this session                                    "
+6| <blank>
+7| "Assistant                                               "
+  style 0-8 fg=bright-magenta bold underline
+8| "Session inspected.                                      "
+9| "Model wait 0.0s                                         "
+  style 0-14 dim
 10| <blank>
 11| "╭─ Session status ─────────────────────────────────────╮"
   style 0-2 dim
diff --git a/packages/ui/tui/tests/snapshots/status-diagnostics.expected.txt b/packages/ui/tui/tests/snapshots/status-diagnostics.expected.txt
index 98ae28fc60..10668f41fe 100644
--- a/packages/ui/tui/tests/snapshots/status-diagnostics.expected.txt
+++ b/packages/ui/tui/tests/snapshots/status-diagnostics.expected.txt
@@ -11,15 +11,15 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                   "
-  style 0-8 fg=bright-magenta bold underline
-5| "Session inspected.                                                                          "
-6| "Model wait 0.0s                                                                             "
-  style 0-14 dim
-7| <blank>
-8| "You                                                                                         "
+4| "You                                                                                         "
   style 0-2 fg=bright-magenta bold underline
-9| "inspect this session                                                                        "
+5| "inspect this session                                                                        "
+6| <blank>
+7| "Assistant                                                                                   "
+  style 0-8 fg=bright-magenta bold underline
+8| "Session inspected.                                                                          "
+9| "Model wait 0.0s                                                                             "
+  style 0-14 dim
 10| <blank>
 11| "╭─ Session status ────────────────────────────────────────────────────────────────────────╮"
   style 0-2 dim
diff --git a/packages/ui/tui/tests/snapshots/surface-after-compaction-narrow.expected.txt b/packages/ui/tui/tests/snapshots/surface-after-compaction-narrow.expected.txt
index e071335d14..ad68ee100a 100644
--- a/packages/ui/tui/tests/snapshots/surface-after-compaction-narrow.expected.txt
+++ b/packages/ui/tui/tests/snapshots/surface-after-compaction-narrow.expected.txt
@@ -11,13 +11,13 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                   "
-  style 0-8 fg=bright-magenta bold underline
-5| <blank>
-6| "You                                         "
+4| "You                                         "
   style 0-2 fg=bright-magenta bold underline
-7| "Old prompt with a long line that exercises  "
-8| "wrapping and stays visible after compaction."
+5| "Old prompt with a long line that exercises  "
+6| "wrapping and stays visible after compaction."
+7| <blank>
+8| "Assistant                                   "
+  style 0-8 fg=bright-magenta bold underline
 9| <blank>
 10| "● Tool / bash / Run the coverage gate"
   style 0-36 fg=green
diff --git a/packages/ui/tui/tests/snapshots/surface-after-compaction-wide.expected.txt b/packages/ui/tui/tests/snapshots/surface-after-compaction-wide.expected.txt
index 81460f09b7..6e6665e1f6 100644
--- a/packages/ui/tui/tests/snapshots/surface-after-compaction-wide.expected.txt
+++ b/packages/ui/tui/tests/snapshots/surface-after-compaction-wide.expected.txt
@@ -11,12 +11,12 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                               "
-  style 0-8 fg=bright-magenta bold underline
-5| <blank>
-6| "You                                                                                                     "
+4| "You                                                                                                     "
   style 0-2 fg=bright-magenta bold underline
-7| "Old prompt with a long line that exercises wrapping and stays visible after compaction.                 "
+5| "Old prompt with a long line that exercises wrapping and stays visible after compaction.                 "
+6| <blank>
+7| "Assistant                                                                                               "
+  style 0-8 fg=bright-magenta bold underline
 8| <blank>
 9| "● Tool / bash / Run the coverage gate"
   style 0-36 fg=green
diff --git a/packages/ui/tui/tests/snapshots/surface-before-compaction.expected.txt b/packages/ui/tui/tests/snapshots/surface-before-compaction.expected.txt
index f599ef75cc..5c5df8c82f 100644
--- a/packages/ui/tui/tests/snapshots/surface-before-compaction.expected.txt
+++ b/packages/ui/tui/tests/snapshots/surface-before-compaction.expected.txt
@@ -11,13 +11,13 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                       "
-  style 0-8 fg=bright-magenta bold underline
-5| <blank>
-6| "You                                                                             "
+4| "You                                                                             "
   style 0-2 fg=bright-magenta bold underline
-7| "Old prompt with a long line that exercises wrapping and stays visible after     "
-8| "compaction.                                                                     "
+5| "Old prompt with a long line that exercises wrapping and stays visible after     "
+6| "compaction.                                                                     "
+7| <blank>
+8| "Assistant                                                                       "
+  style 0-8 fg=bright-magenta bold underline
 9| <blank>
 10| "● Tool / bash / Run the coverage gate"
   style 0-36 fg=green
diff --git a/packages/ui/tui/tests/snapshots/surface-replayed-compaction.expected.txt b/packages/ui/tui/tests/snapshots/surface-replayed-compaction.expected.txt
index 81460f09b7..6e6665e1f6 100644
--- a/packages/ui/tui/tests/snapshots/surface-replayed-compaction.expected.txt
+++ b/packages/ui/tui/tests/snapshots/surface-replayed-compaction.expected.txt
@@ -11,12 +11,12 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                               "
-  style 0-8 fg=bright-magenta bold underline
-5| <blank>
-6| "You                                                                                                     "
+4| "You                                                                                                     "
   style 0-2 fg=bright-magenta bold underline
-7| "Old prompt with a long line that exercises wrapping and stays visible after compaction.                 "
+5| "Old prompt with a long line that exercises wrapping and stays visible after compaction.                 "
+6| <blank>
+7| "Assistant                                                                                               "
+  style 0-8 fg=bright-magenta bold underline
 8| <blank>
 9| "● Tool / bash / Run the coverage gate"
   style 0-36 fg=green
diff --git a/packages/ui/tui/tests/snapshots/todo-plan-cleared.expected.txt b/packages/ui/tui/tests/snapshots/todo-plan-cleared.expected.txt
index 85faa9a867..0fc41886ae 100644
--- a/packages/ui/tui/tests/snapshots/todo-plan-cleared.expected.txt
+++ b/packages/ui/tui/tests/snapshots/todo-plan-cleared.expected.txt
@@ -11,15 +11,15 @@ viewport
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                       "
-  style 0-8 fg=bright-magenta bold underline
-5| "Tracking the steps.                                                                             "
-6| "Model wait 0.0s · Completed 2026-07-21 14:45:00                                                 "
-  style 0-46 dim
-7| <blank>
-8| "You                                                                                             "
+4| "You                                                                                             "
   style 0-2 fg=bright-magenta bold underline
-9| "Plan the work.                                                                                  "
+5| "Plan the work.                                                                                  "
+6| <blank>
+7| "Assistant                                                                                       "
+  style 0-8 fg=bright-magenta bold underline
+8| "Tracking the steps.                                                                             "
+9| "Model wait 0.0s · Completed 2026-07-21 14:45:00                                                 "
+  style 0-46 dim
 10| <blank>
 11| "You                                                                                             "
   style 0-2 fg=bright-magenta bold underline
diff --git a/packages/ui/tui/tests/snapshots/untrusted-controls.expected.txt b/packages/ui/tui/tests/snapshots/untrusted-controls.expected.txt
index 74cdd416d9..dd0ea7a3e6 100644
--- a/packages/ui/tui/tests/snapshots/untrusted-controls.expected.txt
+++ b/packages/ui/tui/tests/snapshots/untrusted-controls.expected.txt
@@ -11,30 +11,30 @@ buffer
 2| " main-session"
   style 1-12 dim
 3| <blank>
-4| "Assistant                                                                                           "
-  style 0-8 fg=bright-magenta bold underline
-5| <blank>
-6| "You                                                                                                 "
+4| "You                                                                                                 "
   style 0-2 fg=bright-magenta bold underline
-7| "Unsafe user \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                           "
-8| <blank>
-9| "● Tool / unsafe / Unsafe description \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m"
-  style 0-81 fg=green
-10| "$ Unsafe title \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                        "
-  style 0-59 dim
-11| "/unsafe/\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                               "
-  style 0-52 dim
-12| "Unsafe output \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                         "
-  style 0-58 dim
-13| "[signal SIG\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m]                                           "
-  style 0-56 fg=red
-14| "Model wait 0.0s · Completed 2026-07-21 15:00:00                                                     "
-  style 0-46 dim
-15| <blank>
-16| "Context · unsafe-\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m"
+5| "Unsafe user \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                           "
+6| <blank>
+7| "Context · unsafe-\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m"
   style 0-61 dim
-17| "Unsafe context \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                        "
+8| "Unsafe context \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                        "
   style 0-59 dim
+9| <blank>
+10| "Assistant                                                                                           "
+  style 0-8 fg=bright-magenta bold underline
+11| <blank>
+12| "● Tool / unsafe / Unsafe description \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m"
+  style 0-81 fg=green
+13| "$ Unsafe title \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                        "
+  style 0-59 dim
+14| "/unsafe/\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                               "
+  style 0-52 dim
+15| "Unsafe output \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                         "
+  style 0-58 dim
+16| "[signal SIG\\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m]                                           "
+  style 0-56 fg=red
+17| "Model wait 0.0s · Completed 2026-07-21 15:00:00                                                     "
+  style 0-46 dim
 18| <blank>
 19| "Unsafe turn error \\x1b]2;snapshot-controlled\\x07\\x09\\x7f\\x9b31m                                     "
   style 0-62 fg=red
diff --git a/packages/ui/tui/tests/tui.snapshot.ts b/packages/ui/tui/tests/tui.snapshot.ts
index 298c6de1a9..89d3f24711 100644
--- a/packages/ui/tui/tests/tui.snapshot.ts
+++ b/packages/ui/tui/tests/tui.snapshot.ts
@@ -633,6 +633,10 @@ describe('TUI terminal-state snapshots', () => {
       },
       beforeMount(session) {
         appendUser(session, `Unsafe user ${CONTROL_PROBE}`)
+        session.append('user/message', createUserMessage({
+          content: [{ type: 'text', text: `Unsafe context ${CONTROL_PROBE}` }],
+          source: { kind: 'plugin', plugin: `unsafe-${CONTROL_PROBE}` },
+        }), { surfaceOp: 'append' })
         appendAssistant(session, [
           { type: 'reasoning', text: `Unsafe reasoning ${CONTROL_PROBE}` },
           { type: 'text', text: `Unsafe assistant ${CONTROL_PROBE}` },
@@ -642,10 +646,6 @@ describe('TUI terminal-state snapshots', () => {
         session.append('todo/write', {
           todos: [{ content: `Unsafe todo ${CONTROL_PROBE}`, status: 'in_progress' }],
         })
-        session.append('user/message', createUserMessage({
-          content: [{ type: 'text', text: `Unsafe context ${CONTROL_PROBE}` }],
-          source: { kind: 'plugin', plugin: `unsafe-${CONTROL_PROBE}` },
-        }), { surfaceOp: 'append' })
         session.append('step/end', { turn: 1, step: 1 })
         session.append('turn/end', {
           turn: 1,
diff --git a/packages/ui/tui/tests/tui.spec.ts b/packages/ui/tui/tests/tui.spec.ts
index e84f7dd4b4..059fd30dd1 100644
--- a/packages/ui/tui/tests/tui.spec.ts
+++ b/packages/ui/tui/tests/tui.spec.ts
@@ -460,7 +460,7 @@ describe('goodbye message and /resume', () => {
   it.each([
     [{ kind: 'aborted', reason: { kind: 'user' } }, 'cancelled'],
     [{ kind: 'error', error: 'failed' }, 'error'],
-    [{ kind: 'aborted', reason: { kind: 'disposed' } }, 'cancelled'],
+    [{ kind: 'aborted', reason: { kind: 'disposed' } }, 'disposed'],
     [{ kind: 'max-tokens' }, 'max tokens'],
     [{ kind: 'interrupted' }, 'interrupted'],
     [{ kind: 'future-result' } as unknown as TurnEndReason, 'unknown result'],
@@ -1232,7 +1232,7 @@ describe('pi-tui chat lifecycle and transcript', () => {
     }
     const result = await setup({
       beforeMount(session) {
-        session.append('user/message', createUserMessage({
+        const message = createUserMessage({
           content: renderGoalChange(change),
           source: {
             kind: 'goal',
@@ -1241,7 +1241,10 @@ describe('pi-tui chat lifecycle and transcript', () => {
             round: 0,
             change,
           },
-        }), { surfaceOp: 'append' })
+        })
+        session.append('agent/inbox/spliced', {
+          target: 'next-step', start: 0, inserted: [message],
+        })
       },
     })
     expect(result.terminal.output).toContain('Goal restored (active) with automatic continuation disarmed')
@@ -3772,6 +3775,7 @@ describe('pi-tui chat lifecycle and transcript', () => {
     expect(events.terminal.output).toContain('live failure')
     expect(events.terminal.output).toContain('durable failure')
     expect(events.terminal.output).toContain('Turn cancelled')
+    expect(events.terminal.output).toContain('Turn stopped: the agent was disposed')
     expect(events.terminal.output).toContain('structured provider failure')
     expect(events.terminal.output).not.toContain('[object Object]')
     expect(events.terminal.output).toContain('output-token limit')
diff --git a/packages/ui/user-approval/tests/approval.spec.ts b/packages/ui/user-approval/tests/approval.spec.ts
index 1ba84bc1ef..850aa009dd 100644
--- a/packages/ui/user-approval/tests/approval.spec.ts
+++ b/packages/ui/user-approval/tests/approval.spec.ts
@@ -520,6 +520,25 @@ describe('approval policy (the approval/policy fold)', () => {
     expect(narrations(session)).toHaveLength(1)
   })
 
+  it('preserves a rejected pre-step without adding policy narration', async () => {
+    const ctx = new Context()
+    await ctx.plugin(ApprovalService)
+    const { agent, session } = sessionAgent('sess-narr-rejected')
+    appendHeader(session, ASK_MARKER)
+    setApprovalPolicy(session, 'never')
+    const signal = new AbortController().signal
+
+    const decision = await agentEvents(ctx, agent).waterfall(
+      'agent/pre-step',
+      [],
+      { turn: 1, step: 1, signal },
+      () => Promise.resolve({ kind: 'reject' as const }),
+    )
+
+    expect(decision).toEqual({ kind: 'reject' })
+    expect(narrations(session)).toEqual([])
+  })
+
   it('reads what the model was told back from the folded header text after a restart', async () => {
     // A session whose last request carried the never sentence resumes under
     // an ask default: the narrator attributes the change to the operator.
diff --git a/scripts/gen-doc-graphs.ts b/scripts/gen-doc-graphs.ts
index 5390b6ef7b..a6a5e82862 100644
--- a/scripts/gen-doc-graphs.ts
+++ b/scripts/gen-doc-graphs.ts
@@ -1174,7 +1174,7 @@ function renderLifecycle(): string {
     `  Driver->>Hooks: ${mermaidCode('agent/pre-step')} waterfall`,
     '  Hooks-->>Driver: authoritative reject or enter(messages)',
     '  alt proposed step rejected or pre-step failed',
-    '    Driver-->>Driver: claimed batch stays removed; no turn opens',
+    '    Driver-->>Driver: claimed batch stays removed, no turn opens',
     '  else enter proposed step',
     `  Driver->>Session: ${mermaidCode('turn/start')}`,
     `  Driver->>Session: ${mermaidCode('step/start')}`,
diff --git a/scripts/gen-tool-catalog.ts b/scripts/gen-tool-catalog.ts
index a77bdb6d95..786e5ad5af 100644
--- a/scripts/gen-tool-catalog.ts
+++ b/scripts/gen-tool-catalog.ts
@@ -296,7 +296,7 @@ const TOOL_PACKAGES: ToolPackage[] = [
     dir: 'tool-goal',
     source: 'packages/goal/tool-goal/src/index.ts',
     requires: ['ctx.tools', 'ctx.agents', 'ctx.goals', 'ctx.systemPrompt', 'a calling Agent in an authorized open turn'],
-    writes: ['tool/call', 'user/message goal snapshot for mutations', 'tool/result'],
+    writes: ['tool/call', 'agent/inbox/spliced goal snapshot for mutations', 'tool/result'],
     async mount(ctx) {
       await ctx.plugin(AgentRegistry)
       await ctx.plugin(GoalService)
diff --git a/scripts/install-lefthook.mjs b/scripts/install-lefthook.mjs
index f94fb3bf11..9e8d02bd14 100644
--- a/scripts/install-lefthook.mjs
+++ b/scripts/install-lefthook.mjs
@@ -3,6 +3,7 @@ import { randomUUID } from 'node:crypto'
 import { existsSync, lstatSync, mkdirSync, readdirSync, readFileSync, unlinkSync, writeFileSync } from 'node:fs'
 import { spawnSync } from 'node:child_process'
 import { dirname, isAbsolute, join, resolve } from 'node:path'
+import lefthookPackage from 'lefthook/package.json' with { type: 'json' }
 
 const MINIMUM_GIT = [2, 26, 0]
 const HOOKS_DIRECTORY = 'dsh-hooks'
@@ -533,6 +534,7 @@ function refuseScopedHooksPath(entry) {
 
 async function main() {
   if (process.env.CI === 'true' || process.env.GITHUB_ACTIONS === 'true') return
+  if (typeof lefthookPackage.bin?.lefthook !== 'string') return
   const probe = spawnSync('git', ['rev-parse', '--show-toplevel'], { encoding: 'utf8' })
   if (probe.status !== 0) return
   const root = stripGitLineTerminator(probe.stdout)
diff --git a/scripts/install-lefthook.spec.ts b/scripts/install-lefthook.spec.ts
index a33c245e3d..ac3f165cf4 100644
--- a/scripts/install-lefthook.spec.ts
+++ b/scripts/install-lefthook.spec.ts
@@ -19,6 +19,9 @@ import { afterEach, describe, expect, it } from 'vitest'
 
 const installer = fileURLToPath(new URL('./install-lefthook.mjs', import.meta.url))
 const fixtures: string[] = []
+// Multi-worktree cases spawn several Git and Node subprocesses; coverage concurrency can
+// legitimately exceed Vitest's default deadline without changing the installer behavior.
+const MULTI_PROCESS_TEST_TIMEOUT_MS = 20_000
 
 interface Fixture {
   container: string
@@ -260,7 +263,7 @@ describe('worktree-local Lefthook installer', () => {
     git(fixture, fixture.main, ['worktree', 'remove', '--force', fixture.linked])
     expect(readFileSync(join(mainHooks, 'pre-commit'), 'utf8')).toBe(mainHookBeforeRemoval)
     expect(readFileSync(legacyHook, 'utf8')).toBe('#!/bin/sh\n# legacy hook\n')
-  })
+  }, MULTI_PROCESS_TEST_TIMEOUT_MS)
 
   it('replaces the owned hook path Git copies into a newly added worktree', async () => {
     const fixture = createFixture()
@@ -284,7 +287,7 @@ describe('worktree-local Lefthook installer', () => {
       '# config=late-linked-worktree-config',
     )
     expect(readFileSync(join(mainHooks, 'pre-commit'), 'utf8')).toBe(mainHookBefore)
-  })
+  }, MULTI_PROCESS_TEST_TIMEOUT_MS)
 
   it('serializes concurrent installs and keeps repeated output stable', async () => {
     const fixture = createFixture()
@@ -305,7 +308,7 @@ describe('worktree-local Lefthook installer', () => {
     expect(readFileSync(mainHookPath, 'utf8')).toBe(initialHook)
     expect(existsSync(join(commonDirectory(fixture), 'dsh-lefthook-install.lock'))).toBe(false)
     expect(existsSync(join(hooksPath(fixture, fixture.main), '.fake-lefthook-running'))).toBe(false)
-  })
+  }, MULTI_PROCESS_TEST_TIMEOUT_MS)
 
   it('repairs its owned absolute hook path after the checkout moves', async () => {
     const fixture = createFixture()
@@ -327,7 +330,7 @@ describe('worktree-local Lefthook installer', () => {
     expect(readFileSync(join(movedHooks, '.dsh-lefthook-owned'), 'utf8')).toContain(
       JSON.stringify(movedHooks),
     )
-  })
+  }, MULTI_PROCESS_TEST_TIMEOUT_MS)
 
   it.skipIf(process.platform === 'win32')('refuses a multiply linked ownership marker before relocation rewrites it', async () => {
     const fixture = createFixture()
@@ -368,7 +371,7 @@ describe('worktree-local Lefthook installer', () => {
       expect(result.stderr).toContain('non-regular or multiply linked hook entry')
       expect(readFileSync(externalHook, 'utf8')).toBe(externalContent)
     }
-  })
+  }, MULTI_PROCESS_TEST_TIMEOUT_MS)
 
   it('restores the marker-backed stale hook path when relocation reinstall fails', async () => {
     const fixture = createFixture()