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refactor(agent): return request retry action

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_Kerman
2026-07-27 21:17:49 +08:00
parent c6073f07c2
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2
docs/agent-lifecycle.md
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@@ -38,7 +38,7 @@ sequenceDiagram
alt final adapter or terminal in-band request failure
Driver->>Session: <code>step/end</code>
Driver->>Hooks: <code>agent/request-error</code> waterfall
Hooks-->>Driver: call agent.retry() or preserve the original error
Hooks-->>Driver: return retry action or preserve the original error
else model request succeeded
Driver->>Session: <code>assistant/message</code>
Driver->>Tools: classify pending call by executionMode

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docs/architecture.i18n.yaml
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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 docs/architecture.md
architecture.md: 779690f659ea0a2df1a53a13fdaa95d6a5eabce7
architecture.zh.md: cf585f11d5bce556e2878a5f0d8511fe5020a7e8
architecture.md: 3b0f72400ab1e6a9157aed2966b4a17c36e0c3ac
architecture.zh.md: fa21c82a686d88a9bbec02180feae1dd0dbf4e47

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docs/architecture.md
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@@ -117,11 +117,11 @@ Each step assembles ordered prompt sections, tool schemas, and variables; unknow
Admission-time and active-turn `inject()` stage for the next step; post-tool `additionalContexts` settles after results. Steering shares that staging boundary and requests another step. Idle `inject()` appends immediately without changing turn numbers; persistence drains eagerly.
Pruning precedes summaries; overflow retries require durable progress. Recovery uses `agent/request-error` after the failed step and before turn close. Its policy calls `agent.retry()` to schedule one retry turn; cancellation wins ([compaction](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md), [retry](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)).
Pruning precedes summaries; overflow retries require durable progress. Recovery uses `agent/request-error` after the failed step and before turn close. Its policy returns a retry action to schedule one retry turn; cancellation wins ([compaction](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md), [retry](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)).
### Failure Boundaries
Adapter failures close the step before `agent/request-error` receives the exact `Error`, normalized `LlmFailure`, and turn signal. A handling listener calls `agent.retry()`; the loop closes the failed turn and opens another from durable history without idle notification. Exhaustion leaves the failed `turn/end` terminal; failed chunks commit neither message nor tool call.
Adapter failures close the step before `agent/request-error` receives the exact `Error`, normalized `LlmFailure`, and turn signal. A handling listener returns `{ kind: 'retry' }`; the loop closes the failed turn and opens another from durable history without idle notification. Exhaustion leaves the failed `turn/end` terminal; failed chunks commit neither message nor tool call.
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)).
@@ -151,7 +151,7 @@ Durability is a plugin concern. Backends eagerly drain synchronous `session/even
Messages use typed blocks from merge-extensible `ContentBlockMap`; the pattern also types `MessageSource`, `FinishReason`, `TurnTrigger`, and `TurnEndReason`. New blocks coordinate adapters, UI, compaction, token metering, and persistence; replay measurements live in [token-meter.md](core-data-structures/token-meter.md).
Streaming uses raw chunks and `BlockAssembler`. Each `LlmAdapter.stream()` is one provider attempt; adapters report normalized failure facts, and a handling `agent/request-error` plugin calls `agent.retry()`. The loop logs chunks, successful provenance, and replay state. Remote adapters use per-read idle watchdogs. Replay crosses routes only through a shared adapter instance ([contract](core-data-structures/llm-streaming.md)).
Streaming uses raw chunks and `BlockAssembler`. Each `LlmAdapter.stream()` is one provider attempt; adapters report normalized failure facts, and a handling `agent/request-error` plugin returns a retry action. The loop logs chunks, successful provenance, and replay state. Remote adapters use per-read idle watchdogs. Replay crosses routes only through a shared adapter instance ([contract](core-data-structures/llm-streaming.md)).
## Extension And Composition

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docs/architecture.zh.md
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@@ -117,11 +117,11 @@ idle inject:
接纳期间和活跃轮次内的 `inject()` 会为下一步骤暂存；工具执行后的 `additionalContexts` 会在结果记录完毕后落定。steering 与其共用这一暂存边界，并请求再执行一个步骤。空闲状态下的 `inject()` 会立即追加，且不改变轮次编号；持久化层会尽快排空。
裁剪先于摘要；溢出重试必须取得持久进展。恢复会在失败步骤关闭后、轮次关闭前使用 `agent/request-error`。其策略调用 `agent.retry()` 安排一个重试轮次；取消优先（[压缩](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md)、[重试](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)）。
裁剪先于摘要；溢出重试必须取得持久进展。恢复会在失败步骤关闭后、轮次关闭前使用 `agent/request-error`。其策略返回重试动作以安排一个重试轮次；取消优先（[压缩](../.agents/notes/implemented/architecture/2026-07-10-after-call-compaction-pressure-and-overflow-recovery.md)、[重试](../.agents/notes/implemented/architecture/2026-06-21-bounded-llm-request-recovery.md)）。
### 失败边界
适配器故障会先关闭步骤，再由 `agent/request-error` 接收准确的 `Error`、标准化的 `LlmFailure` 和轮次信号。负责处理的监听器调用 `agent.retry()`；循环关闭失败轮次，并从持久历史开启另一个轮次，不发出空闲通知。重试耗尽后，失败的 `turn/end` 即为终态记录；失败分片不会提交消息或工具调用。
适配器故障会先关闭步骤，再由 `agent/request-error` 接收准确的 `Error`、标准化的 `LlmFailure` 和轮次信号。负责处理的监听器返回 `{ kind: 'retry' }`；循环关闭失败轮次，并从持久历史开启另一个轮次，不发出空闲通知。重试耗尽后，失败的 `turn/end` 即为终态记录；失败分片不会提交消息或工具调用。
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)）。
@@ -151,7 +151,7 @@ idle inject:
消息使用从可合并扩展的 `ContentBlockMap` 派生的类型化块；同一模式也为 `MessageSource`、`FinishReason`、`TurnTrigger` 和 `TurnEndReason` 定义类型。新增块会协调适配器、UI、压缩、token 计量和持久化；回放计量见 [token-meter.md](core-data-structures/token-meter.md)。
流式输出使用原始分片和 `BlockAssembler`。每次 `LlmAdapter.stream()` 调用代表一次提供方尝试；适配器报告标准化的故障事实，负责处理的 `agent/request-error` 插件会调用 `agent.retry()`。循环会记录分片、成功结果的来源信息和回放状态。远程适配器使用逐次读取空闲看门狗。回放仅通过共用的适配器实例跨路由传递（[契约](core-data-structures/llm-streaming.md)）。
流式输出使用原始分片和 `BlockAssembler`。每次 `LlmAdapter.stream()` 调用代表一次提供方尝试；适配器报告标准化的故障事实，负责处理的 `agent/request-error` 插件会返回重试动作。循环会记录分片、成功结果的来源信息和回放状态。远程适配器使用逐次读取空闲看门狗。回放仅通过共用的适配器实例跨路由传递（[契约](core-data-structures/llm-streaming.md)）。
## 扩展与组合

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docs/cordis-catalog/events.md
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@@ -32,7 +32,7 @@ Effective broad cancellation was requested, before queued/outbox work is cleared
Types: [Agent](../core-data-structures/core.md) · [AgentCancelCause](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:314`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:308`](../../packages/core/agent/src/types.ts)
### `agent/created` — emit
@@ -54,7 +54,7 @@ A fully configured agent and live session were published. Setup is composition-o
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:253`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:247`](../../packages/core/agent/src/types.ts)
### `agent/disposed` — emit
@@ -74,7 +74,7 @@ An agent left the registry; AgentLoop emits this after driver quiescence and sco
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:262`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:256`](../../packages/core/agent/src/types.ts)
### `agent/error` — emit
@@ -96,7 +96,7 @@ A step or turn errored. The machine reports a failure here (plus the logger) eve
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:425`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:419`](../../packages/core/agent/src/types.ts)
### `agent/inbox/dequeue` — emit
@@ -117,7 +117,7 @@ The driver claimed one item out of the inbox: a queued item at a turn boundary,
Types: [Agent](../core-data-structures/core.md) · [AgentMessage](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:292`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:286`](../../packages/core/agent/src/types.ts)
### `agent/inbox/discard` — emit
@@ -140,7 +140,7 @@ Pending inbox items were dropped without delivering them, so every enqueued id r
Types: [Agent](../core-data-structures/core.md) · [AgentMessage](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:304`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:298`](../../packages/core/agent/src/types.ts)
### `agent/inbox/enqueue` — emit
@@ -162,7 +162,7 @@ An item entered the queued or steering inbox. `placement` is the acceptance-time
Types: [Agent](../core-data-structures/core.md) · [AgentMessage](../core-data-structures/core.md) · [InboxPlacement](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:282`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:276`](../../packages/core/agent/src/types.ts)
### `agent/prompt-submit` — waterfall
@@ -186,7 +186,7 @@ Allow, rewrite, or block one claimed prompt before it becomes a user message or
Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) · [PromptDecision](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:342`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:336`](../../packages/core/agent/src/types.ts)
### `agent/request` — waterfall
@@ -210,18 +210,18 @@ Replace the frozen call configuration. `await next()` yields the config the mach
Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:368`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts)
### `agent/request-error` — waterfall
Handle a model-request failure after its failed step has closed but before the failed turn closes. A listener calls Agent.retry to schedule one retry turn, returns without `next()` when it owns the error, or calls `next()` to delegate. The default leaves the failure terminal.
Handle a model-request failure after its failed step has closed but before the failed turn closes. A listener returns `{ kind: 'retry' }` without calling `next()` when it owns the error, or calls `next()` to delegate. The default `undefined` leaves the failure terminal.
```ts cordis-catalog
/**
* Handle a model-request failure after its failed step has closed but
* before the failed turn closes. A listener calls {@link Agent.retry} to
* schedule one retry turn, returns without `next()` when it owns the error,
* or calls `next()` to delegate. The default leaves the failure terminal.
* before the failed turn closes. A listener returns `{ kind: 'retry' }`
* without calling `next()` when it owns the error, or calls `next()` to
* delegate. The default `undefined` leaves the failure terminal.
* @param agent - the agent whose request failed.
* @param turn - the open turn number.
* @param step - the failed step number.
@@ -231,12 +231,12 @@ Handle a model-request failure after its failed step has closed but before the f
* Scope-filtered dispatch (`@deepseek-ai/dsh-scope`): agent-scoped listeners receive only that agent.
* @mode waterfall
*/
'agent/request-error'(this: Scoped<Agent>, agent: Agent, turn: number, step: number, error: RequestError, failure: LlmFailure, signal: AbortSignal, next: () => Promise<void>): Promise<void>
'agent/request-error'(this: Scoped<Agent>, agent: Agent, turn: number, step: number, error: RequestError, failure: LlmFailure, signal: AbortSignal, next: () => Promise<RequestErrorAction>): Promise<RequestErrorAction>
```
Types: [Agent](../core-data-structures/core.md) · [LlmFailure](../core-data-structures/llm-streaming.md) · [RequestError](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Types: [Agent](../core-data-structures/core.md) · [LlmFailure](../core-data-structures/llm-streaming.md) · [RequestError](../core-data-structures/core.md) · [RequestErrorAction](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:383`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:377`](../../packages/core/agent/src/types.ts)
### `agent/session-start` — emit
@@ -258,7 +258,7 @@ The session lifecycle began, once before the first turn. Use `agent.inject()` to
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md) · [SessionStartSource](../core-data-structures/core.md)
Source: [`packages/core/agent/src/types.ts:327`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:321`](../../packages/core/agent/src/types.ts)
### `agent/settled` — emit
@@ -283,7 +283,7 @@ One drain chain reached its terminal turn: that turn's `turn/end` is already com
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md) · [SettleReason](../core-data-structures/core.md)
Source: [`packages/core/agent/src/types.ts:412`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:406`](../../packages/core/agent/src/types.ts)
### `agent/status` — emit
@@ -303,7 +303,7 @@ Agent status changed (`idle` ⇄ `running`). `send()` does not enter `running` s
Types: [Agent](../core-data-structures/core.md) · [AgentStatus](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:271`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:265`](../../packages/core/agent/src/types.ts)
### `agent/step` — serial
@@ -327,7 +327,7 @@ Awaited serial checkpoint before EVERY request of a turn is built (the first as
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:355`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:349`](../../packages/core/agent/src/types.ts)
### `agent/turn-stopping` — serial
@@ -353,7 +353,7 @@ The turn is about to close: the model owes no response (no live tool calls, no f
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:398`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:392`](../../packages/core/agent/src/types.ts)
## `agent-loop/*`

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@@ -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
compaction.md: 0f2b6a8678b992170a29666fe3ac6e10b1d6ae8e
compaction.zh.md: 8fb4b9d1bb25ac7b2ca7fa00f69422d45e8bda3b
# pnpm run verify-translation-pairing --write docs/core-data-structures/compaction.md
compaction.md: 3ba5edd96c509e064ac7033b175b7ddd3c972452
compaction.zh.md: d082b0d0545802500278e96ca41a273bce275f53

2
docs/core-data-structures/compaction.md
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@@ -62,7 +62,7 @@ type CompactionTrigger = 'pressure' | 'context-overflow'
`CompactService` exposes `compactIfNeeded(agent, trigger, signal)` for automatic `pressure` or `context-overflow` policy, returning `null` when no safe work exists, and `compactRegion(...)` for an explicit inclusive surface range. Every backend marks its replacement `user/message` with the package-exported `COMPACT_CHECKPOINT_SOURCE`; consumers call `isCompactCheckpointSource()` instead of coupling checkpoint recognition to one backend. Implementations must forward the supplied signal to summarization. The seam owns no pricing API: the singleton [`ctx.tokenMeter`](token-meter.md) directly owns estimation and replay, while `dsh-compact-basic` owns retention, event sequencing, routed summarization calls, and their configuration.
Pressure compaction runs at serial `agent/step` before request derivation. Once pressure or canonical overflow qualifies, compact-basic invokes optional [`ctx.toolResultPrune`](../../packages/compact/compact-tool-result-prune/README.md) before range selection, remeasures through `ctx.tokenMeter`, and can advance the surface without a summary. Failed-request recovery runs through `agent/request-error` after the failed step closes and calls `agent.retry()` only when the surface replacement generation advances, even if later summary work throws after pruning; cancellation still wins. Region boundaries preserve tool-call/result pairing but not whole turns, allowing early closed steps of one oversized turn to compact. `dsh-compact-basic` owns thresholds, retained-tail policy, overflow caps, and failure handling.
Pressure compaction runs at serial `agent/step` before request derivation. Once pressure or canonical overflow qualifies, compact-basic invokes optional [`ctx.toolResultPrune`](../../packages/compact/compact-tool-result-prune/README.md) before range selection, remeasures through `ctx.tokenMeter`, and can advance the surface without a summary. Failed-request recovery runs through `agent/request-error` after the failed step closes and returns a retry action only when the surface replacement generation advances, even if later summary work throws after pruning; cancellation still wins. Region boundaries preserve tool-call/result pairing but not whole turns, allowing early closed steps of one oversized turn to compact. `dsh-compact-basic` owns thresholds, retained-tail policy, overflow caps, and failure handling.
The seam exports `toolPairingBalancedBefore(session, seq)` and `toolPairingBalancedAfter(session, seq)` for those edge checks. Both validate current surface membership and reject missing seqs and orphan results; the [package contract](../../packages/compact/compact/README.md#tool-pairing-boundaries) owns their cache semantics.

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@@ -62,7 +62,7 @@ type CompactionTrigger = 'pressure' | 'context-overflow'
`CompactService` 暴露 `compactIfNeeded(agent, trigger, signal)` 以执行自动 `pressure` 或 `context-overflow` 策略；没有可安全执行的工作时返回 `null`。它还针对显式、两端均包含的 surface 范围暴露 `compactRegion(...)`。每个后端都使用包导出的 `COMPACT_CHECKPOINT_SOURCE` 标记其替换用的 `user/message`；消费方调用 `isCompactCheckpointSource()`，而不是把检查点识别逻辑耦合到某一个后端。实现必须把传入的 signal 转发给摘要流程。该 seam 不拥有计价 API：单例 [`ctx.tokenMeter`](token-meter.md) 直接拥有估算与回放，而 `dsh-compact-basic` 拥有保留策略、事件排序、按路由执行的摘要调用及其配置。
压力压缩在串行 `agent/step` 中运行，先于请求推导。一旦压力或规范化溢出满足条件，compact-basic 会在选择范围前调用可选的 [`ctx.toolResultPrune`](../../packages/compact/compact-tool-result-prune/README.md)，再通过 `ctx.tokenMeter` 重新测量，并且可以在不生成摘要的情况下推进 surface。失败请求的恢复在失败的步骤关闭后通过 `agent/request-error` 运行；仅当 surface replacement generation 前进时才调用 `agent.retry()`，即便后续摘要工作在剪枝后抛异常亦如此；取消仍然优先。区域边界保持工具调用/结果配对，但不保持整个轮次，因此一个过大轮次中较早关闭的步骤可以被压缩。`dsh-compact-basic` 拥有阈值、保留尾部策略、溢出上限与失败处理。
压力压缩在串行 `agent/step` 中运行，先于请求推导。一旦压力或规范化溢出满足条件，compact-basic 会在选择范围前调用可选的 [`ctx.toolResultPrune`](../../packages/compact/compact-tool-result-prune/README.md)，再通过 `ctx.tokenMeter` 重新测量，并且可以在不生成摘要的情况下推进 surface。失败请求的恢复在失败的步骤关闭后通过 `agent/request-error` 运行；仅当 surface replacement generation 前进时才返回重试动作，即便后续摘要工作在剪枝后抛异常亦如此；取消仍然优先。区域边界保持工具调用/结果配对，但不保持整个轮次，因此一个过大轮次中较早关闭的步骤可以被压缩。`dsh-compact-basic` 拥有阈值、保留尾部策略、溢出上限与失败处理。
该 seam 导出 `toolPairingBalancedBefore(session, seq)` 与 `toolPairingBalancedAfter(session, seq)`，用于这些边缘检查。两者都会验证当前 surface 成员关系，并拒绝缺失的 seq 与遗留结果；其缓存语义由[包契约](../../packages/compact/compact/README.md#tool-pairing-boundaries)规定。

4
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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 docs/core-data-structures/core.md
core.md: 9d58b81dc595cf18591d69b78b6815b8f3249153
core.zh.md: 91e6df2c1a8d84b3a4a573a98403d69692cd04d5
core.md: 357712bd197ac2e0661e6bc61a638aa8a4738356
core.zh.md: dcb7210d37377da99ac2cd68b1ce18fa6e90e0b8

16
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@@ -586,15 +586,6 @@ interface Agent {
* @returns the accepted message's {@link AgentMessageId}.
*/
inject(input: UserMessageData): AgentMessageId
/**
* Re-open a turn on the current session log without a new prompt — the
* explicit resummon verb. During `agent/request-error`, this schedules one
* retry turn after the failed turn closes; while idle, it starts one
* immediately. Repeated calls before the scheduled retry coalesce.
* @throws while other agent work is running.
*/
retry(): void
}
```
@@ -628,7 +619,12 @@ type PromptDecision =
| { kind: 'block'; reason: string }
```
`agent/request-error` runs after a failed model step closes and before its turn closes. Listeners can repair durable state or await policy work while the failed turn's signal is still live. A handling listener calls `agent.retry()` and returns without `next()`; repeated calls coalesce into one retry turn.
`agent/request-error` runs after a failed model step closes and before its turn closes. Listeners can repair durable state or await policy work while the failed turn's signal is still live. A handling listener returns `{ kind: 'retry' }` without calling `next()`; the default `undefined` leaves the failure terminal.
```ts type-equiv
/** Action returned by a listener that owns model-request recovery. */
type RequestErrorAction = { kind: 'retry' } | undefined
```
```ts type-equiv
/** Model-request failure with an optional machine-routable provider code. */

16
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@@ -594,15 +594,6 @@ interface Agent {
* @returns the accepted message's {@link AgentMessageId}.
*/
inject(input: UserMessageData): AgentMessageId
/**
* Re-open a turn on the current session log without a new prompt — the
* explicit resummon verb. During `agent/request-error`, this schedules one
* retry turn after the failed turn closes; while idle, it starts one
* immediately. Repeated calls before the scheduled retry coalesce.
* @throws while other agent work is running.
*/
retry(): void
}
```
@@ -636,7 +627,12 @@ type PromptDecision =
| { kind: 'block'; reason: string }
```
`agent/request-error` 在失败的模型步骤关闭之后、其轮次关闭之前运行。listener 可以在失败轮次的 signal 仍然存活时修复持久状态或 await 策略工作。处理该错误的 listener 调用 `agent.retry()` 并直接返回而不调用 `next()`；重复调用会合并成一个重试轮次。
`agent/request-error` 在失败的模型步骤关闭之后、其轮次关闭之前运行。listener 可以在失败轮次的 signal 仍然存活时修复持久状态或 await 策略工作。处理该错误的 listener 返回 `{ kind: 'retry' }` 且不调用 `next()`；默认的 `undefined` 会让失败保持终态。
```ts type-equiv
/** Action returned by a listener that owns model-request recovery. */
type RequestErrorAction = { kind: 'retry' } | undefined
```
```ts type-equiv
/** Model-request failure with an optional machine-routable provider code. */

4
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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 docs/core-data-structures/llm-streaming.md
llm-streaming.md: 1109c02ab08885bd0b00cd52db3b313aff578b5f
llm-streaming.zh.md: 196b1ce6a18f48ec50c92bee922d05e75f18760c
llm-streaming.md: a6aaaf3fed2ab25821efdf308c7297526ee7f3b5
llm-streaming.zh.md: 521df7d1dad620cea322865fbefa8e4e2615fa78

2
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@@ -59,7 +59,7 @@ Every adapter MUST obey these, and every consumer may rely on them:
- **`usage` before `finish`, nothing after `finish`.** Defer both to the provider's end-of-stream marker so a trailing usage-only chunk can't violate the ordering.
- **Tool-call `arguments` stay raw JSON strings end-to-end.** Partial fragments stream via `argumentsDelta`; a provider that hands back parsed objects re-stringifies at `block-end`.
- **Two sanctioned error paths, one fact shape.** A failure may either THROW from `stream()` (transport/protocol errors) **or** end the stream with `finish {kind:'error'|'aborted', failure}` (provider in-band errors, for adapters that can't throw mid-stream). `LlmError.failure` carries the same `LlmFailure`. The final adapter boundary preserves the exact thrown `Error` object and associates immutable facts with that call; the agent loop closes the failed step and offers the error and facts to `agent/request-error`. A handling listener calls `agent.retry()` after its awaited repair; absent recovery the structured failure becomes the turn error, and no normal assistant message or tool side effect is committed for that attempt.
- **Two sanctioned error paths, one fact shape.** A failure may either THROW from `stream()` (transport/protocol errors) **or** end the stream with `finish {kind:'error'|'aborted', failure}` (provider in-band errors, for adapters that can't throw mid-stream). `LlmError.failure` carries the same `LlmFailure`. The final adapter boundary preserves the exact thrown `Error` object and associates immutable facts with that call; the agent loop closes the failed step and offers the error and facts to `agent/request-error`. A handling listener returns `{ kind: 'retry' }` after its awaited repair; absent recovery the structured failure becomes the turn error, and no normal assistant message or tool side effect is committed for that attempt.
- **One adapter call is one provider attempt.** Adapters disable library retries. Agent-level recovery opens another durable numbered step; direct `ctx.llm.stream()` callers remain single-attempt.
- **Provider stalls are bounded at the transport.** Both shipping remote adapters expose positive finite `streamIdleTimeoutMs` with a five-minute default. The watchdog arms only while iterator `next()` is outstanding, uses one stable signal for the whole request, maps its own expiry to `TIMEOUT`, and keeps an earlier caller abort as `ABORTED`.
- **Context overflow has one canonical code.** Both DeepSeek adapters classify explicit provider detail through `isContextWindowExceededError()` and surface `CONTEXT_WINDOW_EXCEEDED`, whether the failure arrives as a thrown HTTP `LlmError` or an in-band finish error. Consumers route on the code, never provider text.

2
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@@ -59,7 +59,7 @@ interface LlmFailure {
- **`usage` 在 `finish` 之前，`finish` 之后不再有任何分片。** 将两者都推迟到提供方的流结束标记，这样尾部的 usage-only 分片就不会违反顺序。
- **工具调用的 `arguments` 全程保持原始 JSON 字符串。** 部分片段通过 `argumentsDelta` 流式传输；如果提供方返回的是已解析的对象，适配器在 `block-end` 时重新序列化为字符串。
- **两条受支持的错误路径，一种事实形状。** 失败可以从 `stream()` 抛出（传输/协议错误），**或者**以 `finish {kind:'error'|'aborted', failure}` 结束流（无法在流中途抛异常的适配器用它表示提供方带内错误）。`LlmError.failure` 携带同一个 `LlmFailure`。最终适配器边界保留被抛出的确切 `Error` 对象，并将不可变事实关联到该调用；agent loop（智能体循环）关闭失败的步骤，再把错误与事实提供给 `agent/request-error`。处理该错误的 listener 在其 await 的修复完成后调用 `agent.retry()`；若未恢复，结构化失败会成为轮次错误，并且该次尝试不会提交正常 assistant 消息或工具副作用。
- **两条受支持的错误路径，一种事实形状。** 失败可以从 `stream()` 抛出（传输/协议错误），**或者**以 `finish {kind:'error'|'aborted', failure}` 结束流（无法在流中途抛异常的适配器用它表示提供方带内错误）。`LlmError.failure` 携带同一个 `LlmFailure`。最终适配器边界保留被抛出的确切 `Error` 对象，并将不可变事实关联到该调用；agent loop（智能体循环）关闭失败的步骤，再把错误与事实提供给 `agent/request-error`。处理该错误的 listener 在其 await 的修复完成后返回 `{ kind: 'retry' }`；若未恢复，结构化失败会成为轮次错误，并且该次尝试不会提交正常 assistant 消息或工具副作用。
- **一次适配器调用就是一次提供方尝试。** 适配器禁用库重试。agent 层恢复会打开另一个持久、带编号的步骤；直接调用 `ctx.llm.stream()` 的调用方仍然只尝试一次。
- **提供方停顿在传输层受到时限约束。** 两个已交付的远程适配器都暴露正数且有限的 `streamIdleTimeoutMs`，默认五分钟。watchdog 只在 iterator `next()` 尚未完成时启动，整个请求使用同一个稳定 signal，把自身到期映射为 `TIMEOUT`，并把更早发生的调用方中止保留为 `ABORTED`。
- **上下文溢出只有一个规范 code。** 两个 DeepSeek 适配器都通过 `isContextWindowExceededError()` 对提供方的显式细节分类并暴露 `CONTEXT_WINDOW_EXCEEDED`，无论失败以抛出的 HTTP `LlmError` 还是带内 finish error 到达。消费方按 code 路由，绝不依赖提供方文本。

30
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View File

@@ -8,21 +8,21 @@ 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:140`](../packages/core/agent-loop/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`events.dispatch`) | [`tui`](../packages/ui/tui) |
| `agent/cancel-requested` | `emit` | [`packages/core/agent/src/types.ts:314`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal-session`](../packages/goal/goal-session) |
| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:253`](../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:262`](../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:425`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/inbox/dequeue` | `emit` | [`packages/core/agent/src/types.ts:292`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`tui`](../packages/ui/tui) |
| `agent/inbox/discard` | `emit` | [`packages/core/agent/src/types.ts:304`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`tui`](../packages/ui/tui) |
| `agent/inbox/enqueue` | `emit` | [`packages/core/agent/src/types.ts:282`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:342`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`tui`](../packages/ui/tui) |
| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:368`](../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:383`](../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:327`](../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/settled` | `emit` | [`packages/core/agent/src/types.ts:412`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`compact-basic`](../packages/compact/compact-basic), [`llm-retry`](../packages/llm/llm-retry) |
| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:271`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/step` | `serial` | [`packages/core/agent/src/types.ts:355`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`plan-mode`](../packages/plan/plan-mode), [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`time-context`](../packages/context/time-context), [`tool-skill`](../packages/skill/tool-skill), [`user-approval`](../packages/ui/user-approval), [`workspace-context`](../packages/context/workspace-context) |
| `agent/turn-stopping` | `serial` | [`packages/core/agent/src/types.ts:398`](../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/cancel-requested` | `emit` | [`packages/core/agent/src/types.ts:308`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`goal-session`](../packages/goal/goal-session) |
| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:247`](../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:256`](../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:419`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/inbox/dequeue` | `emit` | [`packages/core/agent/src/types.ts:286`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`tui`](../packages/ui/tui) |
| `agent/inbox/discard` | `emit` | [`packages/core/agent/src/types.ts:298`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`tui`](../packages/ui/tui) |
| `agent/inbox/enqueue` | `emit` | [`packages/core/agent/src/types.ts:276`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:336`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`goal-session`](../packages/goal/goal-session), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard), [`tui`](../packages/ui/tui) |
| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:362`](../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:377`](../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:321`](../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/settled` | `emit` | [`packages/core/agent/src/types.ts:406`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`compact-basic`](../packages/compact/compact-basic), [`llm-retry`](../packages/llm/llm-retry) |
| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:265`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emitAgentEvent`) | [`agent`](../packages/core/agent), `apiproxy`, [`goal-session`](../packages/goal/goal-session), [`tui`](../packages/ui/tui) |
| `agent/step` | `serial` | [`packages/core/agent/src/types.ts:349`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic), [`plan-mode`](../packages/plan/plan-mode), [`session-checkpoint-policy`](../packages/session-persistence/session-checkpoint-policy), [`time-context`](../packages/context/time-context), [`tool-skill`](../packages/skill/tool-skill), [`user-approval`](../packages/ui/user-approval), [`workspace-context`](../packages/context/workspace-context) |
| `agent/turn-stopping` | `serial` | [`packages/core/agent/src/types.ts:392`](../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) |
| `commands/change` | `emit` | [`packages/ui/commands/src/index.ts:103`](../packages/ui/commands/src/index.ts) | [`commands`](../packages/ui/commands) (`events.dispatch`) | `apiproxy`, [`tui`](../packages/ui/tui) |
| `domain/changed` | `emit` | [`packages/storage/storage-domain/src/events.ts:46`](../packages/storage/storage-domain/src/events.ts) | [`storage-domain`](../packages/storage/storage-domain) (`emit`) | `apiproxy`, [`storage-domain`](../packages/storage/storage-domain), [`workspace`](../packages/workspace/workspace) |