diff --git a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.i18n.yaml b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.i18n.yaml
index 6a415c2516..3fccf77cc4 100644
--- a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.i18n.yaml
+++ b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.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/2026-08-06-continuable-subagent-interrupt.md
-2026-08-06-continuable-subagent-interrupt.md: 79397ac58d9bc1a117053f05f1a5b7971c48cfbb
-2026-08-06-continuable-subagent-interrupt.zh.md: 2b29895c21bf2290b750bdce6979dbe2d76635a7
+2026-08-06-continuable-subagent-interrupt.md: cb97a77434b43ee71fa30deee9811f7a45c53f1a
+2026-08-06-continuable-subagent-interrupt.zh.md: ee05afd963584331def8c7d6acfa26830b7c1d0f
diff --git a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.md b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.md
index 79397ac58d..cb97a77434 100644
--- a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.md
+++ b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.md
@@ -45,4 +45,4 @@ The model-facing `interrupt_agent(agent_id)` tool in `dsh-tool-subagent-control`
 
 ## Testing
 
-Core coverage in `packages/subagent/subagent/tests/continuation.spec.ts` proves the durable `turn/end` abort, parked-then-FIFO-resumed queue, untouched descendant, both authority kinds with their cancel causes, self/sibling/stale/non-ancestor rejection, absent/one-shot/disposal-race no-ops, and the unchanged `keepInbox` loop behavior. Host coverage in `packages/host/apiproxy/tests` proves the RPC calls only the core primitive (no agents/catalog/history reads), the `subagent-unauthorized`/`internal` mappings, the wire schema's continuable-mode fence, and carrier round-trips. Client coverage pins the address-routed `Session.cancel()`, the InputBar's independent Send and Stop actions with the parent-offline locked-input/Send state, and the read-only-composer selector's running exception; the keyless assembled Web scenarios (`apps/web/tests/subagent-interrupt.e2e.ts`, `subagent-interrupt-ui.e2e.ts`) hold real child turns open with replay hang entries and prove the parent-offline UI-to-RPC abort path, queued Send, the parked follow-up, and the FIFO resume end to end. Tool coverage in `packages/subagent/tool-subagent-control/tests` proves direct and deep ancestor interrupts with the `parent` cause and parked queue, self/sibling/stranger rejection without touching the target, absent-target no-ops without cold resume, and the descendants listing's pre-order positions; the keyless ACP snapshots pin the new tool schemas in every recorded request header.
+Core coverage in `packages/subagent/subagent/tests/continuation.spec.ts` proves the durable `turn/end` abort, parked-then-FIFO-resumed queue, untouched descendant, both authority kinds with their cancel causes, self/sibling/stale/non-ancestor rejection, absent/one-shot/disposal-race no-ops, and the unchanged `keepInbox` loop behavior. Host coverage in `packages/host/apiproxy/tests` proves the RPC calls only the core primitive (no agents/catalog/history reads), the `subagent-unauthorized`/`internal` mappings, the wire schema's continuable-mode fence, and carrier round-trips. Client coverage pins the address-routed `Session.cancel()`, the InputBar's independent Send and Stop actions with the parent-offline locked-input/Send state, and the read-only-composer selector's running exception; the keyless assembled Web scenarios (`apps/web/tests/subagent-interrupt.e2e.ts`, `subagent-interrupt-ui.e2e.ts`) hold real child turns open with replay hang entries and prove the parent-offline UI-to-RPC abort path, queued Send, the parked follow-up, and the FIFO resume end to end. Tool coverage in `packages/subagent/tool-subagent-control/tests` proves direct and deep ancestor interrupts with the `parent` cause and parked queue, self/sibling/stranger rejection without touching the target, absent-target no-ops without cold resume, and the descendants listing's pre-order positions; the keyless ACP snapshot executes `list_agents({ scope: 'descendants' })` and `interrupt_agent` through the assembled application against one settled child, while recorded request headers continue to pin both schemas.
diff --git a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.zh.md b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.zh.md
index 2b29895c21..ee05afd963 100644
--- a/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.zh.md
+++ b/.agents/notes/implemented/feature/2026-08-06-continuable-subagent-interrupt.zh.md
@@ -45,4 +45,4 @@ Host RPC `subagent.interrupt` 接收 continuable 的 `SubagentAddress` 并返回
 
 ## Testing
 
-`packages/subagent/subagent/tests/continuation.spec.ts` 中的核心覆盖证明了持久化 `turn/end` 中止、队列先暂停后按 FIFO 恢复、后代不受影响、两种授权及其取消 cause、self/sibling/stale/非 ancestor 拒绝、absent/一次性/disposal 竞态 no-op，以及 `keepInbox` 循环行为不变。`packages/host/apiproxy/tests` 中的 Host 覆盖证明 RPC 只调用核心原语（不读 agents/目录/历史）、`subagent-unauthorized`／`internal` 映射、wire schema 的 continuable 模式围栏以及 carrier 往返。客户端覆盖固定按地址路由的 `Session.cancel()`、InputBar 的独立 Send 与 Stop 操作及 parent 离线时锁定输入区和 Send 的状态，以及只读 composer selector 的运行例外；keyless 组装 Web 场景（`apps/web/tests/subagent-interrupt.e2e.ts`、`subagent-interrupt-ui.e2e.ts`）通过多条 replay hang 条目保持多个真实 child 轮次打开，端到端证明 parent 离线时从 UI 到 RPC 的中止路径、Send 入队、follow-up 暂停以及 FIFO 恢复。`packages/subagent/tool-subagent-control/tests` 中的工具覆盖证明直接与更深 ancestor 以 `parent` cause 中断并暂停队列、self/sibling/陌生调用方被拒绝且不触碰目标、目标不存在时 no-op 且不冷恢复，以及 descendants 列表的 pre-order 位置；keyless ACP 快照把新工具 schema 固定在每个已录制请求 header 中。
+`packages/subagent/subagent/tests/continuation.spec.ts` 中的核心覆盖证明了持久化 `turn/end` 中止、队列先暂停后按 FIFO 恢复、后代不受影响、两种授权及其取消 cause、self/sibling/stale/非 ancestor 拒绝、absent/一次性/disposal 竞态 no-op，以及 `keepInbox` 循环行为不变。`packages/host/apiproxy/tests` 中的 Host 覆盖证明 RPC 只调用核心原语（不读 agents/目录/历史）、`subagent-unauthorized`／`internal` 映射、wire schema 的 continuable 模式围栏以及 carrier 往返。客户端覆盖固定按地址路由的 `Session.cancel()`、InputBar 的独立 Send 与 Stop 操作及 parent 离线时锁定输入区和 Send 的状态，以及只读 composer selector 的运行例外；keyless 组装 Web 场景（`apps/web/tests/subagent-interrupt.e2e.ts`、`subagent-interrupt-ui.e2e.ts`）通过多条 replay hang 条目保持多个真实 child 轮次打开，端到端证明 parent 离线时从 UI 到 RPC 的中止路径、Send 入队、follow-up 暂停以及 FIFO 恢复。`packages/subagent/tool-subagent-control/tests` 中的工具覆盖证明直接与更深 ancestor 以 `parent` cause 中断并暂停队列、self/sibling/陌生调用方被拒绝且不触碰目标、目标不存在时 no-op 且不冷恢复，以及 descendants 列表的 pre-order 位置；keyless ACP 快照通过组装应用，针对一个已结算的 child 执行 `list_agents({ scope: 'descendants' })` 与 `interrupt_agent`，同时已录制的请求 header 仍固定这两个 schema。
diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts
index c09dd7d2ed..62a1a674d5 100644
--- a/examples/acp-agent/tests/acp.snapshot.ts
+++ b/examples/acp-agent/tests/acp.snapshot.ts
@@ -336,9 +336,10 @@ const SCENARIOS: Scenario[] = [
   },
   // Authored durable-catalog transcript: the snapshot-only lifecycle marker
   // fences the second parent turn behind the child's Activation end, so
-  // `list_agents` deterministically reads the persisted child as complete.
-  // The tool itself executes for real against the control service, session
-  // query, and JSONL persistence; the marker is not model-visible.
+  // `list_agents({ scope: 'descendants' })` deterministically reads the
+  // persisted child as complete, then `interrupt_agent` executes its accepted
+  // no-op against that settled id. Both tools run through the assembled control
+  // service; the marker is not model-visible.
   {
     name: 'subagent-list-agents',
     hasModelTurn: true,
diff --git a/examples/acp-agent/tests/snapshots/subagent-list-agents/input.json b/examples/acp-agent/tests/snapshots/subagent-list-agents/input.json
index ff7832f3b9..b3b1d8e170 100644
--- a/examples/acp-agent/tests/snapshots/subagent-list-agents/input.json
+++ b/examples/acp-agent/tests/snapshots/subagent-list-agents/input.json
@@ -16,7 +16,7 @@
     },
     {
       "op": "prompt",
-      "text": "Call list_agents once and observe the subagent you started. Then reply with the single word DONE. Do not call any other tool."
+      "text": "Call list_agents once with scope set to descendants and observe the subagent you started. Then call interrupt_agent once with agent_id set to 33333333-3333-4333-8333-333333333333. Then reply with the single word DONE. Do not call any other tool."
     }
   ]
 }
diff --git a/examples/acp-agent/tests/snapshots/subagent-list-agents/session.jsonl b/examples/acp-agent/tests/snapshots/subagent-list-agents/session.jsonl
index 1a0113e440..f1deec5af9 100644
--- a/examples/acp-agent/tests/snapshots/subagent-list-agents/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/subagent-list-agents/session.jsonl
@@ -26,26 +26,36 @@
 {"type":"assistant/message","seq":24,"time":1785730454820,"data":{"turn":1,"step":2,"message":{"role":"assistant","content":[{"type":"text","text":"STARTED"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"2ee459fa-21f9-48c6-a42e-3c38eca1e4c9"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[19,20,21,22,23],"surfaceOp":"append"}
 {"type":"step/end","seq":25,"time":1785730454821,"data":{"turn":1,"step":2}}
 {"type":"turn/end","seq":26,"time":1785730454821,"data":{"turn":1,"reason":{"kind":"completed"}}}
-{"type":"agent/inbox/spliced","seq":27,"time":1785730454857,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Call list_agents once and observe the subagent you started. Then reply with the single word DONE. Do not call any other tool."}],"source":{"kind":"user"},"role":"user","id":"3bcac2a3-e0db-465b-94b4-4e2761236475"}]}}
+{"type":"agent/inbox/spliced","seq":27,"time":1785730454857,"data":{"target":"next-turn","start":0,"inserted":[{"content":[{"type":"text","text":"Call list_agents once with scope set to descendants and observe the subagent you started. Then call interrupt_agent once with agent_id set to 33333333-3333-4333-8333-333333333333. Then reply with the single word DONE. Do not call any other tool."}],"source":{"kind":"user"},"role":"user","id":"3bcac2a3-e0db-465b-94b4-4e2761236475"}]}}
 {"type":"turn/start","seq":28,"time":1785821412840,"data":{"turn":2}}
 {"type":"agent/inbox/spliced","seq":29,"time":1785821412840,"data":{"target":"next-turn","start":0,"removedCount":1,"inserted":[]}}
 {"type":"step/start","seq":30,"time":1785730454863,"data":{"turn":2,"step":1}}
-{"type":"user/message","seq":31,"time":1785730454863,"data":{"content":[{"type":"text","text":"Call list_agents once and observe the subagent you started. Then reply with the single word DONE. Do not call any other tool."}],"source":{"kind":"user"},"role":"user","id":"3bcac2a3-e0db-465b-94b4-4e2761236475"},"surfaceOp":"append"}
+{"type":"user/message","seq":31,"time":1785730454863,"data":{"content":[{"type":"text","text":"Call list_agents once with scope set to descendants and observe the subagent you started. Then call interrupt_agent once with agent_id set to 33333333-3333-4333-8333-333333333333. Then reply with the single word DONE. Do not call any other tool."}],"source":{"kind":"user"},"role":"user","id":"3bcac2a3-e0db-465b-94b4-4e2761236475"},"surfaceOp":"append"}
 {"type":"assistant/chunk","seq":32,"time":1785531795686,"data":{"turn":2,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
-{"type":"assistant/chunk","seq":33,"time":1785536135065,"data":{"turn":2,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"call_list","name":"list_agents","argumentsDelta":"{}"}}}
-{"type":"assistant/chunk","seq":34,"time":1785730454867,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_list","name":"list_agents","arguments":"{}"}}}}
+{"type":"assistant/chunk","seq":33,"time":1785536135065,"data":{"turn":2,"step":1,"chunk":{"type":"tool-call-delta","index":0,"id":"call_list","name":"list_agents","argumentsDelta":"{\"scope\":\"descendants\"}"}}}
+{"type":"assistant/chunk","seq":34,"time":1785730454867,"data":{"turn":2,"step":1,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_list","name":"list_agents","arguments":"{\"scope\":\"descendants\"}"}}}}
 {"type":"assistant/chunk","seq":35,"time":1785730454867,"data":{"turn":2,"step":1,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}}}
 {"type":"assistant/chunk","seq":36,"time":1785730454867,"data":{"turn":2,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
-{"type":"assistant/message","seq":37,"time":1785730454867,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"call_list","name":"list_agents","arguments":"{}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"199c7794-d782-4957-b7ed-69d094b9c0ef"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[32,33,34,35,36],"surfaceOp":"append"}
-{"type":"tool/call","seq":38,"time":1785730454867,"data":{"turn":2,"step":1,"callId":"call_list","name":"list_agents","arguments":"{}"}}
-{"type":"tool/result","seq":39,"time":1785730454893,"data":{"turn":2,"step":1,"message":{"source":{"kind":"tool","callId":"call_list"},"content":[{"type":"tool-result","toolCallId":"call_list","content":[{"type":"text","text":"33333333-3333-4333-8333-333333333333 [complete] — Reply with CHILD_OK"}],"isError":false}],"role":"user","id":"61ceb650-3e32-413e-9d7e-b6ec8a351858"}},"sourceEventSeqs":[38],"surfaceOp":"append"}
+{"type":"assistant/message","seq":37,"time":1785730454867,"data":{"turn":2,"step":1,"message":{"role":"assistant","content":[{"type":"tool-call","id":"call_list","name":"list_agents","arguments":"{\"scope\":\"descendants\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"199c7794-d782-4957-b7ed-69d094b9c0ef"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[32,33,34,35,36],"surfaceOp":"append"}
+{"type":"tool/call","seq":38,"time":1785730454867,"data":{"turn":2,"step":1,"callId":"call_list","name":"list_agents","arguments":"{\"scope\":\"descendants\"}"}}
+{"type":"tool/result","seq":39,"time":1785730454893,"data":{"turn":2,"step":1,"message":{"source":{"kind":"tool","callId":"call_list"},"content":[{"type":"tool-result","toolCallId":"call_list","content":[{"type":"text","text":"33333333-3333-4333-8333-333333333333 [complete] parent=11111111-1111-4111-8111-111111111111 depth=1 — Reply with CHILD_OK"}],"isError":false}],"role":"user","id":"61ceb650-3e32-413e-9d7e-b6ec8a351858"}},"sourceEventSeqs":[38],"surfaceOp":"append"}
 {"type":"step/end","seq":40,"time":1785730454893,"data":{"turn":2,"step":1}}
 {"type":"step/start","seq":41,"time":1785730454903,"data":{"turn":2,"step":2}}
-{"type":"assistant/chunk","seq":42,"time":1785531795715,"data":{"turn":2,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
-{"type":"assistant/chunk","seq":43,"time":1785536135106,"data":{"turn":2,"step":2,"chunk":{"type":"text-delta","index":0,"text":"DONE"}}}
-{"type":"assistant/chunk","seq":44,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE"}}}}
-{"type":"assistant/chunk","seq":45,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}}}
-{"type":"assistant/chunk","seq":46,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
-{"type":"assistant/message","seq":47,"time":1785730454907,"data":{"turn":2,"step":2,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"17c1a7c5-84f5-493e-adb5-6a65219e6ad6"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[42,43,44,45,46],"surfaceOp":"append"}
-{"type":"step/end","seq":48,"time":1785730454908,"data":{"turn":2,"step":2}}
-{"type":"turn/end","seq":49,"time":1785730454908,"data":{"turn":2,"reason":{"kind":"completed"}}}
+{"type":"assistant/chunk","seq":42,"time":1785531795715,"data":{"turn":2,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"tool-call"}}}
+{"type":"assistant/chunk","seq":43,"time":1785536135106,"data":{"turn":2,"step":2,"chunk":{"type":"tool-call-delta","index":0,"id":"call_interrupt","name":"interrupt_agent","argumentsDelta":"{\"agent_id\":\"33333333-3333-4333-8333-333333333333\"}"}}}
+{"type":"assistant/chunk","seq":44,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"tool-call","id":"call_interrupt","name":"interrupt_agent","arguments":"{\"agent_id\":\"33333333-3333-4333-8333-333333333333\"}"}}}}
+{"type":"assistant/chunk","seq":45,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":5}}}}
+{"type":"assistant/chunk","seq":46,"time":1785730454907,"data":{"turn":2,"step":2,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
+{"type":"assistant/message","seq":47,"time":1785730454907,"data":{"turn":2,"step":2,"message":{"role":"assistant","content":[{"type":"tool-call","id":"call_interrupt","name":"interrupt_agent","arguments":"{\"agent_id\":\"33333333-3333-4333-8333-333333333333\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"17c1a7c5-84f5-493e-adb5-6a65219e6ad6"},"usage":{"inputTokens":10,"outputTokens":5}},"sourceEventSeqs":[42,43,44,45,46],"surfaceOp":"append"}
+{"type":"tool/call","seq":48,"time":1785730454907,"data":{"turn":2,"step":2,"callId":"call_interrupt","name":"interrupt_agent","arguments":"{\"agent_id\":\"33333333-3333-4333-8333-333333333333\"}"}}
+{"type":"tool/result","seq":49,"time":1785730454917,"data":{"turn":2,"step":2,"message":{"source":{"kind":"tool","callId":"call_interrupt"},"content":[{"type":"tool-result","toolCallId":"call_interrupt","content":[{"type":"text","text":"interrupt requested for agent 33333333-3333-4333-8333-333333333333"}],"isError":false}],"role":"user","id":"bf93cbe0-1946-4aef-a4ce-431790026c6f"}},"sourceEventSeqs":[48],"surfaceOp":"append"}
+{"type":"step/end","seq":50,"time":1785730454917,"data":{"turn":2,"step":2}}
+{"type":"step/start","seq":51,"time":1785730454927,"data":{"turn":2,"step":3}}
+{"type":"assistant/chunk","seq":52,"time":1785531795715,"data":{"turn":2,"step":3,"chunk":{"type":"block-start","index":0,"blockType":"text"}}}
+{"type":"assistant/chunk","seq":53,"time":1785536135106,"data":{"turn":2,"step":3,"chunk":{"type":"text-delta","index":0,"text":"DONE"}}}
+{"type":"assistant/chunk","seq":54,"time":1785730454907,"data":{"turn":2,"step":3,"chunk":{"type":"block-end","index":0,"block":{"type":"text","text":"DONE"}}}}
+{"type":"assistant/chunk","seq":55,"time":1785730454907,"data":{"turn":2,"step":3,"chunk":{"type":"usage","usage":{"inputTokens":10,"outputTokens":2}}}}
+{"type":"assistant/chunk","seq":56,"time":1785730454907,"data":{"turn":2,"step":3,"chunk":{"type":"finish","reason":{"kind":"stop"}}}}
+{"type":"assistant/message","seq":57,"time":1785730454907,"data":{"turn":2,"step":3,"message":{"role":"assistant","content":[{"type":"text","text":"DONE"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-flash"},"id":"e4c04cd6-9c23-4c99-a5f7-bac6fc141e95"},"usage":{"inputTokens":10,"outputTokens":2}},"sourceEventSeqs":[52,53,54,55,56],"surfaceOp":"append"}
+{"type":"step/end","seq":58,"time":1785730454938,"data":{"turn":2,"step":3}}
+{"type":"turn/end","seq":59,"time":1785730454938,"data":{"turn":2,"reason":{"kind":"completed"}}}