docs(agent): clarify late steering timing

This commit is contained in:
pku-xht
2026-07-20 14:42:55 +08:00
parent 7d7d69e225
commit c16e1078f5
10 changed files with 75 additions and 67 deletions

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@@ -33,7 +33,7 @@ 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:151`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:154`](../../packages/core/agent/src/types.ts)
### `agent/disposed` — emit
@@ -53,7 +53,7 @@ An agent left the registry; AgentLoop emits this after driver quiescence but bef
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:160`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:163`](../../packages/core/agent/src/types.ts)
### `agent/error` — emit
@@ -75,7 +75,7 @@ A step or turn errored. The loop reports a failure here (plus the logger) even w
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:315`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:318`](../../packages/core/agent/src/types.ts)
### `agent/post-step` — serial
@@ -98,7 +98,7 @@ Awaited serial checkpoint after the response, real or synthetic tool results, in
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:268`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:271`](../../packages/core/agent/src/types.ts)
### `agent/pre-step` — serial
@@ -121,7 +121,7 @@ Awaited serial checkpoint before `step/start`; appends land outside the pending
Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:208`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:211`](../../packages/core/agent/src/types.ts)
### `agent/prompt-submit` — waterfall
@@ -142,7 +142,7 @@ Allow, rewrite, or block one claimed prompt before it becomes a user message. Ca
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:218`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:221`](../../packages/core/agent/src/types.ts)
### `agent/queued` — emit
@@ -163,7 +163,7 @@ Detached, frozen content entered the agent's inbox. Source defaults have already
Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [MessageSource](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:179`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:182`](../../packages/core/agent/src/types.ts)
### `agent/request` — waterfall
@@ -186,7 +186,7 @@ Replace the frozen call configuration. Model-visible content must use logged cha
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:230`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:233`](../../packages/core/agent/src/types.ts)
### `agent/request-error` — waterfall
@@ -211,7 +211,7 @@ Recover a model-request failure after its failed step has closed. `retry` opens
Types: [Agent](../core-data-structures/core.md) · [RequestError](../core-data-structures/core.md) · [RequestErrorDecision](../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:285`](../../packages/core/agent/src/types.ts)
### `agent/session-prefix` — waterfall
@@ -237,7 +237,7 @@ Compose request-only messages placed before derived history. The frozen result i
Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:245`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:248`](../../packages/core/agent/src/types.ts)
### `agent/session-start` — emit
@@ -259,7 +259,7 @@ 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:192`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:195`](../../packages/core/agent/src/types.ts)
### `agent/status` — emit
@@ -279,7 +279,7 @@ Agent status changed (`idle` ⇄ `running`, or → `disposed`). `send()` does no
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:169`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:172`](../../packages/core/agent/src/types.ts)
### `agent/step-result` — waterfall
@@ -301,7 +301,7 @@ Waterfall: post-process the assembled assistant Message before tool dispatch (va
Types: [Agent](../core-data-structures/core.md) · [Message](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:256`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:259`](../../packages/core/agent/src/types.ts)
### `agent/turn-continuation` — waterfall
@@ -322,7 +322,7 @@ Override whether the turn continues. The default continues after tool calls or s
Types: [Agent](../core-data-structures/core.md) · [ContinuationDecision](../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:295`](../../packages/core/agent/src/types.ts)
### `agent/turn-stop` — serial
@@ -343,7 +343,7 @@ Monotonic terminal-stop checkpoint after continuation and steering are folded; a
Types: [Agent](../core-data-structures/core.md) · [ContinuationStop](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
Source: [`packages/core/agent/src/types.ts:302`](../../packages/core/agent/src/types.ts)
Source: [`packages/core/agent/src/types.ts:305`](../../packages/core/agent/src/types.ts)
## `agent-loop/*`

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@@ -370,9 +370,12 @@ interface Agent {
send(content: ContentBlock[], options?: SendOptions): void
/**
* Steer a running turn: content is injected between steps of the current
* turn. Uses the same owned-value and synchronous-validation boundary as
* {@link send}; when idle, behaves exactly like that method.
* Submit steering while the agent is `running`. An open turn records it at
* the next steering checkpoint before a request or continuation decision;
* policy may stop before another step. After turn close and its checkpoint,
* any remainder is queued for a later turn; terminal `agent/turn-stop`,
* cancellation, or disposal may discard it. Uses the same synchronous
* snapshot-and-validation boundary as {@link send}; when idle, delegates to it.
*/
steer(content: ContentBlock[], options?: SendOptions): void
@@ -400,7 +403,7 @@ interface Agent {
}
```
`AgentStatus` is `'idle' | 'running' | 'disposed'`, and `SessionId` is branded. `AgentOptions` is merge-extensible and currently includes `provider?` and `model?`; dispatch requires both after `agent/request`. Persona belongs to `dsh-system-prompt`: an agent-scoped `deployment:persona` may shadow the global default.
`AgentStatus` is `'idle' | 'running' | 'disposed'`, and `SessionId` is branded. `running` describes the driver-wide drain interval, which can span turn close, its durability checkpoint, and consecutive queued turns; it does not prove a turn is still open. `AgentOptions` is merge-extensible and currently includes `provider?` and `model?`; dispatch requires both after `agent/request`. Persona belongs to `dsh-system-prompt`: an agent-scoped `deployment:persona` may shadow the global default.
The [event taxonomy](../architecture.md#event) owns the `agent/*` lifecycle, checkpoint, and waterfall contracts. Turn and step boundaries are durable session events rather than agent emits.

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@@ -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:362`](../packages/core/agent-loop/src/index.ts) | [`agent-loop`](../packages/core/agent-loop) (`events.dispatch`) | [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:151`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:160`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`agent-loop`](../packages/core/agent-loop), [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:315`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`tui`](../packages/ui/tui) |
| `agent/post-step` | `serial` | [`packages/core/agent/src/types.ts:268`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) |
| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:208`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`time-context`](../packages/context/time-context), [`user-approval`](../packages/ui/user-approval) |
| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:218`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) |
| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:179`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - |
| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:230`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp) |
| `agent/request-error` | `waterfall` | [`packages/core/agent/src/types.ts:282`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic) |
| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:245`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill), [`workspace-context`](../packages/context/workspace-context) |
| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:192`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`stdio`](../packages/ui/stdio) |
| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:169`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`invariants`](../packages/support/invariants), [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:256`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - |
| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:292`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:302`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) |
| `agent/created` | `emit` | [`packages/core/agent/src/types.ts:154`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/disposed` | `emit` | [`packages/core/agent/src/types.ts:163`](../packages/core/agent/src/types.ts) | [`agent`](../packages/core/agent) (`events.dispatch`) | [`agent-loop`](../packages/core/agent-loop), [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/error` | `emit` | [`packages/core/agent/src/types.ts:318`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`tui`](../packages/ui/tui) |
| `agent/post-step` | `serial` | [`packages/core/agent/src/types.ts:271`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`compact-basic`](../packages/compact/compact-basic) |
| `agent/pre-step` | `serial` | [`packages/core/agent/src/types.ts:211`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`time-context`](../packages/context/time-context), [`user-approval`](../packages/ui/user-approval) |
| `agent/prompt-submit` | `waterfall` | [`packages/core/agent/src/types.ts:221`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) |
| `agent/queued` | `emit` | [`packages/core/agent/src/types.ts:182`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | - |
| `agent/request` | `waterfall` | [`packages/core/agent/src/types.ts:233`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`acp`](../packages/ui/acp) |
| `agent/request-error` | `waterfall` | [`packages/core/agent/src/types.ts:285`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`compact-basic`](../packages/compact/compact-basic) |
| `agent/session-prefix` | `waterfall` | [`packages/core/agent/src/types.ts:248`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`tool-skill`](../packages/skill/tool-skill), [`workspace-context`](../packages/context/workspace-context) |
| `agent/session-start` | `emit` | [`packages/core/agent/src/types.ts:195`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex), [`stdio`](../packages/ui/stdio) |
| `agent/status` | `emit` | [`packages/core/agent/src/types.ts:172`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`emit`) | [`invariants`](../packages/support/invariants), [`stdio`](../packages/ui/stdio), [`tui`](../packages/ui/tui) |
| `agent/step-result` | `waterfall` | [`packages/core/agent/src/types.ts:259`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | - |
| `agent/turn-continuation` | `waterfall` | [`packages/core/agent/src/types.ts:295`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`waterfall`) | [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) |
| `agent/turn-stop` | `serial` | [`packages/core/agent/src/types.ts:305`](../packages/core/agent/src/types.ts) | [`agent-loop`](../packages/core/agent-loop) (`serial`) | [`subagent-inprocess`](../packages/subagent/subagent-inprocess) |
| `approval/request` | `waterfall` | [`packages/ui/user-approval/src/index.ts:31`](../packages/ui/user-approval/src/index.ts) | [`user-approval`](../packages/ui/user-approval) (`waterfall`) | [`acp`](../packages/ui/acp) |
| `fs/edit-intent` | `waterfall` | [`packages/fs/fs/src/index.ts:61`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`waterfall`) | [`fs-policy`](../packages/fs/fs-policy) |
| `fs/observed` | `emit` | [`packages/fs/fs/src/index.ts:70`](../packages/fs/fs/src/index.ts) | [`tool-fs`](../packages/fs/tool-fs) (`emit`) | [`fs-policy`](../packages/fs/fs-policy) |