Merge pull request #1654 from deepseek-harness/codex/otel-feedback-levels

feat(telemetry): add feedback-gated OTEL modes
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2026-08-07 16:07:27 +08:00
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@@ -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/2026-07-23-session-telemetry-otel-revival.md
2026-07-23-session-telemetry-otel-revival.md: a58598d8a956d47cb0cf6aa3e659f38314bc4b17
2026-07-23-session-telemetry-otel-revival.zh.md: 0deb0b81ce262db4fa4ae26076cd59756d628d20
2026-07-23-session-telemetry-otel-revival.md: f83128e8bf62e0718e59912c16c4e449855aaa1a
2026-07-23-session-telemetry-otel-revival.zh.md: bef3bd9cbc22f363b92880864651dcaa782fc1de
@@ -12,9 +12,9 @@ Every deployment that wants harness sessions in an observability stack must hand
`packages/telemetry/` revives the two reviewed packages under the SDK stance — the harness provides the capability, the deployment configures where records go and owns what leaves in them:
- **`@deepseek-ai/dsh-session-telemetry`** — the seam. `TelemetryBackend` (`emit`/`flush?`/`shutdown`), the service-registered `Telemetry` form, and `TelemetryCoordinator` owning capture: adoption with cursor read-back, the per-append firehose (project → `structuredClone` → redact → `emit`, zero I/O), the fixed first-chunk-per-(turn, step) projection, the `agent/error` relay, and dispose-time `shutdown` records.
- **`@deepseek-ai/dsh-session-telemetry`** — the seam. `TelemetryBackend` (`emit`/`flush?`/`shutdown`), the service-registered `Telemetry` form, and `TelemetryCoordinator` owning capture: live adoption with cursor read-back and the per-append firehose (project → `structuredClone` → redact → `emit`, zero I/O), buffer-free on-demand replay from the canonical log, the fixed first-chunk-per-(turn, step) projection, the live `agent/error` relay, and live dispose-time `shutdown` records.
- **The `telemetry/record` waterfall** — the delta over the branch version and the seam's redaction extension point. Every record passes it before reaching any backend; the seam ships NO rules of its own — the innermost `next()` is a pass-through, deployments mount their rules as listeners (stacking by transforming `next()`'s return value), and a throwing rule withholds the record fail-closed. Redaction applies to the exported copy only; the canonical log is never rewritten.
- **`@deepseek-ai/dsh-session-telemetry-otel`** — the reference backend: OTel JS SDK log pipeline (`LoggerProvider``BatchLogRecordProcessor` → OTLP/HTTP exporter), configured verbatim through `exporter`/`processor` passthroughs. `exporter.url` is required and validated at load; unmounted or unconfigured, nothing leaves the process.
- **`@deepseek-ai/dsh-session-telemetry-otel`** — the reference backend: OTel JS SDK log pipeline (`LoggerProvider``BatchLogRecordProcessor` → OTLP/HTTP exporter), configured verbatim through `exporter`/`processor` passthroughs. Its default `FULL` mode requires `exporter.url`; the later [feedback-gated telemetry decision](2026-08-05-feedback-gated-session-telemetry.md) adds `FEEDBACK_ONLY` and `DISABLED` delivery modes without moving the redaction or backend boundary, while [buffer-free feedback replay](../simplification/2026-08-06-buffer-free-feedback-telemetry.md) avoids a second in-memory copy of the session prefix.
The boundary axiom holds: the harness's aspect ends at `emit()`. Batching, retry, queueing, and loss policy are the reporting SDK's, configured through passthroughs — delivery is best-effort (at-most-once across a crash), which the READMEs state plainly.
@@ -34,4 +34,4 @@ The boundary axiom holds: the harness's aspect ends at `emit()`. Batching, retry
## Consequences
A deployment adds one `cordis.yml` entry with an OTLP endpoint and gets its session stream in any OTel-compatible stack; removing the entry is the opt-out, with no residual state. A rule-free deployment exports records exactly as captured — including any credentials embedded in file contents or command output — so a deployment crossing a trust boundary must mount `telemetry/record` listeners, and both READMEs state this plainly. Where rules are mounted, exported bodies can differ from canonical log bytes, so receivers must not treat telemetry as a byte-exact replica; the log remains the source of truth. Crash durability is explicitly out of scope until the outbox decision above is revisited.
A deployment adds one `cordis.yml` entry with an OTLP endpoint and gets its session stream in any OTel-compatible stack. `FULL` preserves that behavior by default, `FEEDBACK_ONLY` replays a canonical-log prefix when feedback is recorded, and `DISABLED` constructs no reporting pipeline; removing the entry remains a silent opt-out, while the disabled mode keeps the local feedback warning. A rule-free deployment exports records exactly as captured — including any credentials embedded in file contents or command output — so a deployment crossing a trust boundary must mount `telemetry/record` listeners, and both READMEs state this plainly. Where rules are mounted, exported bodies can differ from canonical log bytes, so receivers must not treat telemetry as a byte-exact replica; the log remains the source of truth. Crash durability is explicitly out of scope until the outbox decision above is revisited.
@@ -12,9 +12,9 @@ Status: implemented
`packages/telemetry/` 以 SDK 立场复活这两个经过评审的包——harness 提供能力,部署方配置上报去向并对导出内容负责:
- **`@deepseek-ai/dsh-session-telemetry`** —— seam 本体。`TelemetryBackend``emit`/`flush?`/`shutdown`)、服务注册形态的 `Telemetry`、以及拥有捕获侧的 `TelemetryCoordinator`:带游标回读的接管、逐 append 的 firehose(投影 → `structuredClone` → 脱敏 → `emit`,零 I/O)、固定的每个(轮次、步骤)组合首分片投影、`agent/error` 转发以及 dispose(资源释放)时的 `shutdown` 记录。
- **`@deepseek-ai/dsh-session-telemetry`** —— seam 本体。`TelemetryBackend``emit`/`flush?`/`shutdown`)、服务注册形态的 `Telemetry`、以及拥有捕获侧的 `TelemetryCoordinator`:带游标回读的实时收养与逐 append 的 firehose(投影 → `structuredClone` → 脱敏 → `emit`,零 I/O)、从权威日志进行的无缓冲按需回放、固定的每个(轮次、步骤)组合首分片投影、实时 `agent/error` 转发以及实时 dispose(资源释放)时的 `shutdown` 记录。
- **`telemetry/record` waterfall(瀑布式事件)** —— 相对分支版本的增量,也是该 seam 的脱敏扩展点。每条记录抵达任何后端前必经此处;seam 自身不带任何规则——最内层 `next()` 原样透传,部署方以监听器挂载自己的规则(通过变换 `next()` 的返回值堆叠),抛异常的规则将该记录 fail-closed 扣下。脱敏只作用于导出副本;canonical log 永不改写。
- **`@deepseek-ai/dsh-session-telemetry-otel`** —— 参考后端:OTel JS SDK 日志流水线(`LoggerProvider``BatchLogRecordProcessor` → OTLP/HTTP exporter),经 `exporter`/`processor` passthrough 原样配置。`exporter.url` 必填且加载时校验;未挂载或未配置时,任何数据都不会离开进程
- **`@deepseek-ai/dsh-session-telemetry-otel`** —— 参考后端:OTel JS SDK 日志流水线(`LoggerProvider``BatchLogRecordProcessor` → OTLP/HTTP exporter),经 `exporter`/`processor` passthrough 原样配置。其默认 `FULL` 模式要求 `exporter.url`;后续的[反馈门控遥测决策](2026-08-05-feedback-gated-session-telemetry.md)增加了 `FEEDBACK_ONLY``DISABLED` 投递模式,但未移动脱敏或后端边界,而[无缓冲反馈回放](../simplification/2026-08-06-buffer-free-feedback-telemetry.md)避免在内存中创建会话前缀的第二份副本
边界公理保持不变:harness 的职责止于 `emit()`。批处理、重试、排队与丢失策略属于 reporting SDK,经 passthrough 配置——投递是尽力而为(崩溃时至多一次),两份 README 对此如实陈述。
@@ -34,4 +34,4 @@ Status: implemented
## 后果
部署方在 `cordis.yml` 加一个带 OTLP endpoint 的 Cordis 配置项即可把会话流接入任何 OTel 兼容体系;删除该配置项即退出,无残留状态。未挂载规则的部署导出的记录与捕获时完全一致——包括文件内容与命令输出中内嵌的任何凭据——因此跨信任边界的部署必须挂载 `telemetry/record` 监听器,两个 README 对此如实陈述。挂载规则后,导出的 body 可能与 canonical log 字节不同,接收端不得把遥测当作字节精确副本;日志仍是真源。崩溃持久性在上述 outbox 决定重新审议前明确不在范围内。
部署方在 `cordis.yml` 加一个带 OTLP endpoint 的 Cordis 配置项即可把会话流接入任何 OTel 兼容体系`FULL` 默认保留该行为,`FEEDBACK_ONLY` 在记录反馈时回放权威日志前缀,`DISABLED` 则不构造上报流水线;删除该配置项仍是静默退出方式,而禁用模式会保留本地反馈警告。未挂载规则的部署导出的记录与捕获时完全一致包括文件内容与命令输出中内嵌的任何凭据因此跨信任边界的部署必须挂载 `telemetry/record` 监听器,两个 README 对此如实陈述。挂载规则后,导出的 body 可能与 canonical log 字节不同,接收端不得把遥测当作字节精确副本;日志仍是真源。崩溃持久性在上述 outbox 决定重新审议前明确不在范围内。
@@ -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/2026-07-28-feedback-command.md
2026-07-28-feedback-command.md: dad598a1830be445cdeb67d29acd8f6055bae139
2026-07-28-feedback-command.zh.md: b9a6c62ef1c5ac134c09dd23e5628ed7b55d6ac2
2026-07-28-feedback-command.md: 770c72954d66c9e26e03c47f99c261626e6ed09b
2026-07-28-feedback-command.zh.md: c8bd57ddb5e94bfb826ec40b771547ca9625c8e3
@@ -18,7 +18,7 @@ The package declares the log-only `feedback/record { text }` session event and e
`dsh-commands` still writes its `command/run` / `command/done` lifecycle pair around `/feedback`, but this command sets `recordInput: false`. Its `command/run` therefore carries the command identity and source without `args`; the feedback text exists only in `feedback/record`, while `command/done` carries the acknowledgement outcome. All three records are log-only and non-surface. Their appends start persistence's ordinary eager drain; nothing forces a flush, so acknowledgement reports that the feedback is in the log rather than already on disk.
Capture is deliberately inert: nothing in this repository reads `feedback/record`.
Capture remains inert for the running agent and model. The optional OTel telemetry package later adds one infrastructure consumer: it observes `feedback/record` as a release trigger in `FEEDBACK_ONLY` mode and as the local-only warning trigger in `DISABLED` mode, without changing the feedback event or command path. See [Feedback-gated session telemetry](2026-08-05-feedback-gated-session-telemetry.md).
### Why feedback owns an event
@@ -34,7 +34,7 @@ Surrounding whitespace is discarded, but nothing else is parsed. `/feedback /pla
### A new group
`packages/feedback/` is a new group because no existing one owns this. `goal/` is objective state, `session-title/` is titles, `core/` is the product spine. The group holds one package; a consumer would join it rather than forcing this one to grow.
`packages/feedback/` is a new group because no existing one owns this. `goal/` is objective state, `session-title/` is titles, `core/` is the product spine. The group holds one producer package; cross-cutting consumers stay in their owning groups rather than forcing this one to grow.
## Alternatives considered
@@ -48,7 +48,7 @@ Surrounding whitespace is discarded, but nothing else is parsed. `/feedback /pla
**Register the command inside an existing package** such as `packages/ui/commands`. Avoids a new group and its README pair. Rejected: `ctx.commands` is the registry, not a home for arbitrary command implementations, and the requester asked for a standalone package.
**Parse structure out of the text** (category prefixes, severity markers). Rejected as speculative: no consumer exists to use the structure, and any control-word grammar makes the corresponding literal feedback unrecordable. Verbatim text is the widest surface a future consumer can narrow; a parsed one cannot be widened after the fact.
**Parse structure out of the text** (category prefixes, severity markers). Rejected as speculative: no consumer needs that structure, and any control-word grammar makes the corresponding literal feedback unrecordable. Verbatim text is the widest surface a future consumer can narrow; a parsed one cannot be widened after the fact.
**Add a model-facing tool instead of a slash command.** Rejected: feedback is a direct human observation. Routing it through the model spends a turn, lets the model paraphrase the user's words, and makes the record contingent on the model choosing to call the tool.
@@ -58,6 +58,6 @@ The shipped `dsh` base mounts the command unconditionally — no configuration,
The package owns one independent append-only event with no cross-event or mutable-data relation for an invariant companion to check. The event follows the session log's existing replay, fork, persistence, and crash-tail behavior.
Deferred: no consumer; no structured fields; no amend or withdraw, since the log is append-only and this package adds no tombstone; and no explicit durability barrier, so an entry recorded immediately before a crash can be lost with any other unflushed tail.
Deferred: no product or model consumer; no structured fields; no amend or withdraw, since the log is append-only and this package adds no tombstone; and no explicit durability barrier, so an entry recorded immediately before a crash can be lost with any other unflushed tail. The optional telemetry consumer treats the event only as an export-policy trigger.
No keyless transcript snapshot accompanies this change, at the requester's explicit direction. Package tests, a real Loader composition test over a `cordis.yml`, and the shipped Web composition test cover registration, capture, model exclusion, and product assembly.
@@ -18,7 +18,7 @@ Status: implemented
`dsh-commands` 仍会围绕 `/feedback` 写入 `command/run` / `command/done` 生命周期配对,但该命令设置了 `recordInput: false`。因此,它的 `command/run` 携带命令标识与来源,但不携带 `args`;反馈文本只存在于 `feedback/record` 中,而 `command/done` 携带确认结果。三个记录都仅写入日志且非 surface。它们的追加会启动持久化的常规即时排空;没有任何环节强制 flush,因此确认文本报告的是反馈已进入日志,而非已经落盘。
采集刻意不产生后续动作:本仓库中没有任何代码读取 `feedback/record`
采集对正在运行的 agent 与模型仍不产生后续动作。可选的 OTel 遥测包后续增加了一个基础设施消费方:它在 `FEEDBACK_ONLY` 模式下将 `feedback/record` 作为释放触发器,在 `DISABLED` 模式下将其作为本地警告触发器,且不改变反馈事件或命令路径。见[反馈门控的会话遥测](2026-08-05-feedback-gated-session-telemetry.md)
### 为何反馈拥有自己的事件
@@ -34,7 +34,7 @@ Status: implemented
### 一个新的分组
`packages/feedback/` 是新分组,因为现有分组都不拥有此职责:`goal/` 负责目标状态,`session-title/` 负责标题,`core/` 是产品主干。该分组目前只有一个包;未来的消费方应加入该分组,而不是迫使这个包不断膨胀。
`packages/feedback/` 是新分组,因为现有分组都不拥有此职责:`goal/` 负责目标状态,`session-title/` 负责标题,`core/` 是产品主干。该分组只包含一个生产方包;跨领域的消费方留在各自所属的分组,而不是迫使这个包不断膨胀。
## 考虑过的替代方案
@@ -48,7 +48,7 @@ Status: implemented
**在现有包中注册该命令**,例如 `packages/ui/commands`。可省去新分组及其双语 README。已否决:`ctx.commands` 是注册表,而不是任意命令实现的归属地;且请求者明确要求独立的包。
**从文本中解析结构**(类别前缀、严重程度标记)。已否决,属于投机设计:目前没有消费方使用该结构,而任何控制词语法都会让对应的字面反馈无法记录。原样文本是未来消费方可以收窄的最宽接口;而已被解析的接口无法事后放宽。
**从文本中解析结构**(类别前缀、严重程度标记)。已否决,属于投机设计:没有消费方需要该结构,而任何控制词语法都会让对应的字面反馈无法记录。原样文本是未来消费方可以收窄的最宽接口;而已被解析的接口无法事后放宽。
**改为提供面向模型的工具。** 已否决:反馈是人类的直接观察。经由模型会消耗一个轮次、让模型改写用户的原话,并使记录取决于模型是否选择调用该工具。
@@ -58,6 +58,6 @@ Status: implemented
本包拥有一个独立的仅追加事件,不存在跨事件关系或可变数据关系可供不变式伴生插件检查。该事件遵循会话日志现有的回放、fork、持久化和崩溃尾部行为。
延期事项:没有消费方;没有结构化字段;不支持修改或撤回,因为日志仅追加且本包不新增 tombstone;且没有显式持久化屏障,因此紧临崩溃前记录的条目可能与其他未 flush 的尾部一同丢失。
延期事项:没有产品或模型消费方;没有结构化字段;不支持修改或撤回,因为日志仅追加且本包不新增 tombstone;且没有显式持久化屏障,因此紧临崩溃前记录的条目可能与其他未 flush 的尾部一同丢失。可选的遥测消费方只将该事件作为导出策略触发器。
本次变更按请求者的明确指示不附带无密钥 transcript(文本记录)快照。包测试、基于真实 `cordis.yml` 的 Loader 组合测试,以及随附的 Web 组合测试覆盖注册、采集、模型排除和产品组装。
@@ -0,0 +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/2026-08-05-feedback-gated-session-telemetry.md
2026-08-05-feedback-gated-session-telemetry.md: 7d923a7e4cf61e8d1119187564b87e4cbb2065b7
2026-08-05-feedback-gated-session-telemetry.zh.md: 2862162c0c36e5194846c7e1c7bbc24230ce90aa
@@ -0,0 +1,35 @@
# Agent Note: Feedback-gated session telemetry
Status: implemented
English | [中文](2026-08-05-feedback-gated-session-telemetry.zh.md)
## Problem
Session telemetry originally has one mounted behavior: every accepted record enters the reporting backend immediately. Deployments need two stricter policies without replacing the plugin: hold a session's telemetry unless its user records feedback, or disable reporting while still explaining what happens to feedback. The policy must preserve the existing full-export default and the telemetry seam's redaction-before-backend boundary.
## Decision
`@deepseek-ai/dsh-session-telemetry-otel` exposes the string-valued `TelemetryMode` enum to TypeScript callers and accepts the same three uppercase `mode` values in serialized configuration:
- `FULL` is the default and preserves immediate delivery to the configured OTel pipeline.
- `FEEDBACK_ONLY` reads the canonical session log when `feedback/record` is appended and hands over the unreleased prefix through that exact event. Records appended after that boundary remain local until another feedback event.
- `DISABLED` constructs no exporter, processor, or logger provider. A `feedback/record` listener prints that nothing is shared and the feedback remains local.
The generic telemetry coordinator owns `live` and `on-demand` capture. Live capture projects, clones, redacts, and hands each event to the backend on the session firehose. On-demand capture registers no continuous capture listeners; `captureSession(session, throughSeq)` reads the canonical log from the handoff cursor through an inclusive boundary, then projects, clones, redacts, and hands over that prefix. The cursor advances only for handed-over records. The [buffer-free replay decision](../simplification/2026-08-06-buffer-free-feedback-telemetry.md) owns why the on-demand path uses the canonical log instead of copied records.
Mode resolution is a closed, fail-before-setup check: an unknown direct-construction value fails before transport configuration is read. Only `FULL` exposes the public service's `emit()` path to the SDK pipeline. `FEEDBACK_ONLY` gives its on-demand coordinator a private backend capability; its listener passes an event to `captureSession()` only when the exact `feedback/record` object is already stored at `session.events[event.seq]`. `Session.append` commits that object before publishing `session/event`, so replay includes the feedback but cannot extend past its boundary. `DISABLED` creates neither the capability nor the SDK pipeline and does not inspect exporter configuration.
## Alternatives considered
**Open a session permanently after its first feedback.** Rejected because later work would be shared without another feedback act and the plugin would need additional open-session state. Releasing one pending prefix per feedback has the smaller state machine and the narrower sharing boundary.
**Retain capture-time redacted records until feedback.** Rejected because it duplicates an unbounded session prefix even though the canonical log already owns the events. It preserves capture-time redaction policy and operational records, but those properties do not justify the memory cost for a mode defined as uploading the session log after feedback.
**Temporarily allow public `emit()` calls during feedback replay.** Rejected because a redaction listener or another reentrant caller could enqueue an unrelated record while the flag was open. A private backend capability makes authorization structural and keeps the public service closed throughout replay.
**Use an unmounted plugin as the disabled state.** That remains the silent opt-out, but it cannot warn when feedback is recorded. The explicit disabled mode lets a deployment keep one configuration shape and communicate that the local feedback did not leave the process.
## Consequences
`FULL` remains source- and wire-compatible with the original default. `FEEDBACK_ONLY` adds no telemetry-owned per-event buffer before feedback; direct service calls and non-canonical feedback events upload nothing, and a crash before feedback uploads nothing from that prefix. Replay applies the redaction policy mounted when feedback is recorded and excludes operational records that do not exist in the canonical log. Feedback-only streams therefore carry neither `agent-error` nor `shutdown` records, and shutdown absence is not a crash signal. Each later feedback captures the suffix accumulated since the previous boundary. `DISABLED` can omit `exporter.url`, does no reporting work, and keeps feedback only in the canonical session log.
@@ -0,0 +1,35 @@
# Agent Note:反馈门控的会话遥测
Status: implemented
[English](2026-08-05-feedback-gated-session-telemetry.md) | 中文
## 问题
会话遥测原本只有一种已挂载行为:每条已接受记录都立即进入上报后端。部署方需要两种更严格的策略,且不替换插件:只有用户记录反馈时才释放该会话的遥测,或禁用上报并仍向用户说明反馈的去向。该策略必须保留现有的全量导出默认值,以及遥测 seam 在记录抵达后端之前脱敏的边界。
## 决策
`@deepseek-ai/dsh-session-telemetry-otel` 向 TypeScript 调用方公开以字符串为值的 `TelemetryMode` 枚举,并在序列化配置中接受相同的三个大写 `mode` 值:
- `FULL` 是默认值,保留向已配置 OTel 流水线的即时投递。
- `FEEDBACK_ONLY` 在追加 `feedback/record` 时读取权威会话日志,并交接截至该事件的未释放前缀。该边界后追加的记录会留在本地,直到另一个反馈事件。
- `DISABLED` 不构造导出器、处理器或日志提供方。`feedback/record` 监听器会输出警告,说明什么都不会共享,且反馈仍留在本地。
通用遥测协调器拥有 `live``on-demand` 捕获。实时捕获在会话 firehose 上投影、深拷贝、脱敏每个事件,并将其交给后端。按需捕获不注册持续捕获监听器;`captureSession(session, throughSeq)` 从 handoff 游标起读取权威日志,直至含边界的指定序列号,然后投影、深拷贝、脱敏并交接该前缀。游标只为已交接记录推进。[无缓冲回放决策](../simplification/2026-08-06-buffer-free-feedback-telemetry.md)说明了按需路径为何使用权威日志而非记录副本。
模式解析采用封闭式检查,并在设置前失败:通过直接构造传入未知值时,会在读取传输配置前失败。只有 `FULL` 向 SDK 流水线开放公共服务的 `emit()` 路径。`FEEDBACK_ONLY` 向其按需协调器提供私有后端能力;其监听器向 `captureSession()` 传递事件的唯一条件,是该事件与那个 `feedback/record` 对象身份完全相同,且该对象已存储于 `session.events[event.seq]``Session.append` 在发布 `session/event` 前已提交该对象,因此回放包含该反馈,但不会越过其边界。`DISABLED` 既不创建该能力,也不创建 SDK 流水线,并且不检查导出器配置。
## 考虑过的替代方案
**会话在首次反馈后永久开放。** 已否决,因为后续工作会在用户未再次提交反馈的情况下被共享,而且插件需要额外的会话开放状态。每次反馈只释放一个待处理前缀,状态机更小,共享边界也更窄。
**反馈前保留捕获时已脱敏记录。** 已否决,因为权威日志已拥有这些事件,该方案仍会复制无上限的会话前缀。它能保留捕获时的脱敏策略与运维记录,但对于一个定义为「反馈后上传会话日志」的模式,这些性质不足以证明该内存成本合理。
**在反馈回放期间临时允许公开 `emit()` 调用。** 已否决,因为在标志开启期间,脱敏监听器或另一个可重入调用方可能将无关记录入队。私有后端能力使授权成为结构性保证,并确保公共服务在整个回放过程中保持关闭。
**以不挂载插件表示禁用状态。** 这仍然是静默退出方式,但无法在记录反馈时输出警告。显式禁用模式让部署方可以保持同一种配置形态,并说明本地反馈未离开进程。
## 后果
`FULL` 与原有默认值保持源码及协议兼容。`FEEDBACK_ONLY` 在反馈前不增加遥测自有的逐事件缓冲;直接服务调用与非权威反馈事件均不上传任何内容,且反馈前发生崩溃时,该前缀也不上传任何内容。回放使用记录反馈时挂载的脱敏策略,并排除权威日志中不存在的运维记录。因此,仅反馈的流既不携带 `agent-error` 记录,也不携带 `shutdown` 记录,而缺少 shutdown 不是崩溃信号。每个后续反馈都会捕获从上一个边界起累积的后缀。`DISABLED` 可省略 `exporter.url`,不执行任何上报工作,并仅在权威会话日志中保留反馈。
@@ -0,0 +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/simplification/2026-08-06-buffer-free-feedback-telemetry.md
2026-08-06-buffer-free-feedback-telemetry.md: 008bebdcb59f7ef4fe49f8e731aad77861368d5c
2026-08-06-buffer-free-feedback-telemetry.zh.md: 7052e075921f4470864f5ea1c4aed5cf6201becf
@@ -0,0 +1,29 @@
# Agent Note: Buffer-free feedback telemetry
Status: implemented
English | [中文](2026-08-06-buffer-free-feedback-telemetry.zh.md)
## Problem
Feedback-only telemetry must upload the session-log prefix only after recorded feedback. Retaining a deep-copied, redacted record for every projected event until that trigger duplicates the canonical session log and grows without a bound for a long-lived session that never records feedback.
## Decision
The telemetry coordinator provides `live` and `on-demand` capture. On-demand capture registers no session, flush, or operational-event listeners and retains no projected records. `captureSession(session, throughSeq?)` reads the canonical session log after the handoff cursor through an optional inclusive sequence boundary, applies the fixed projection, deep-copies each accepted event, runs the current `telemetry/record` waterfall, and hands the result to the backend.
`FEEDBACK_ONLY` invokes that method with the `feedback/record` event's sequence. The append is already committed when `session/event` listeners run, so the replay contains the feedback event and cannot include a later suffix. The existing handoff cursor distinguishes later replays without another pending-record index.
Because on-demand capture reads only the canonical log, it emits no `agent-error` or `shutdown` operational records. Redaction is evaluated at feedback time rather than append time. The [feedback mode decision](../feature/2026-08-05-feedback-gated-session-telemetry.md) owns the public sharing behavior; this note owns its buffer-free realization.
## Alternatives considered
**Retain capture-time redacted records.** This preserves the exact redaction policy and operational records observed when each event occurs, but duplicates the unbounded session prefix. The mode promises feedback-triggered session-log upload, not capture-time policy snapshots or pre-feedback operational telemetry.
**Retain session event references or sequence numbers.** Rejected because the canonical log already supplies both order and identity. A second index saves payload copies but adds lifecycle state without enabling any required behavior.
**Write a durable pre-feedback spool.** Deferred until a deployment requires crash recovery before feedback. It adds storage, cleanup, and confidentiality policy to a mode whose intended behavior is to upload nothing when the process exits before feedback.
## Consequences
A no-feedback session consumes no telemetry-owned memory proportional to its event count; the canonical session log remains the only pre-feedback copy. Feedback handling performs projection, cloning, and redaction synchronously before the backend's non-blocking enqueue, so its cost scales with the unreleased prefix. A redaction-policy change before feedback affects that replay, and a crash before feedback uploads nothing. Later feedback processes only events beyond the handoff cursor.
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# Agent Note: 无缓冲反馈遥测
Status: implemented
[English](2026-08-06-buffer-free-feedback-telemetry.md) | 中文
## 问题
仅反馈遥测必须只在记录反馈后上传会话日志前缀。若在触发前为每个已投影事件保留一份已深拷贝、已脱敏的记录,就会复制权威会话日志;对于长期运行但从不记录反馈的会话,这份副本会无限增长。
## 决策
遥测协调器提供 `live``on-demand` 捕获。按需捕获不注册会话、flush 或运维事件监听器,也不保留投影记录。`captureSession(session, throughSeq?)` 从 handoff 游标之后读取权威会话日志,直至可选的序列号边界(含边界),应用固定投影、深拷贝每个已接受事件、运行当前的 `telemetry/record` waterfall(瀑布式事件),并将结果交给后端。
`FEEDBACK_ONLY``feedback/record` 事件的序列号调用该方法。`session/event` 监听器运行时,追加已经提交,因此回放包含该反馈事件,且无法包含后续后缀。现有 handoff 游标可区分后续回放,无需另一个待处理记录索引。
按需捕获只读取权威日志,因此不会发出 `agent-error``shutdown` 运维记录。脱敏在反馈时而非追加时求值。[反馈模式决策](../feature/2026-08-05-feedback-gated-session-telemetry.md)规定公开的共享行为;本记录规定其无缓冲实现。
## 考虑过的替代方案
**保留捕获时的已脱敏记录。** 该方案会保留每个事件发生时观察到的确切脱敏策略与运维记录,但也会复制无上限的会话前缀。该模式承诺在反馈触发后上传会话日志,而非保留捕获时策略快照或反馈前运维遥测。
**保留会话事件引用或序列号。** 已否决,因为权威日志已同时提供顺序与身份。第二个索引可以省去载荷副本,但会增加生命周期状态,且无法实现任何必需行为。
**写入持久化的反馈前 spool。** 推迟到有部署要求反馈前的崩溃恢复时再实现。该方案会为一个预期在进程于反馈前退出时不上传任何内容的模式增加存储、清理与保密策略。
## 后果
没有反馈的会话不会消耗随事件数量增长的遥测自有内存;权威会话日志仍是反馈前的唯一副本。反馈处理会在后端非阻塞入队前同步执行投影、深拷贝与脱敏,因此其开销随未释放前缀增长。反馈前的脱敏策略变更会影响该次回放,而反馈前发生崩溃时什么都不上传。后续反馈只处理 handoff 游标之后的事件。