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Merge remote-tracking branch 'origin/master' into jsonl-packed-chunk-rows

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Conflict: master's docs-site rework (#e7b101a43) deleted the generated
website/zh-CN/api pages this branch had re-anchored after the last merge —
accept the deletions; the site now builds its API reference at build time.
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kingwl
2026-07-20 19:35:34 +08:00
parent 5869a46d94 55cb8a7c63
commit 539cb9748b
162 changed files with 4938 additions and 7210 deletions
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31
docs/core-data-structures/core.md
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@@ -360,15 +360,20 @@ interface Agent {
readonly ctx: Context
/**
* Queue detached, frozen lossless-JSON input; starts a turn when idle.
* Queue one detached, frozen lossless-JSON item. If claimed, it is the sole
* ordinary message in its FIFO-ordered turn; the next claimed item waits for
* that turn's checkpoint.
* Invalid input throws synchronously before notification or enqueue.
*/
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
@@ -382,10 +387,11 @@ interface Agent {
inject(content: ContentBlock[], options?: InjectOptions): void
/**
* Clear queued and steering work, including work waiting to start, and abort
* the active step. The supplied reason is preserved across pre-step and active
* cancellation windows, and `whenIdle()` resolves after cancellation reaches
* quiescence. Idle cancellation is a no-op and does not arm a later cancel.
* Clear all queued and steering work, including items waiting to start, and
* abort the active step. The supplied reason is preserved across pre-step
* and active cancellation windows, and `whenIdle()` resolves after
* cancellation reaches quiescence. Idle cancellation is a no-op and does not
* arm a later cancel.
*/
cancel(reason?: string): void
@@ -395,7 +401,7 @@ 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.
@@ -419,13 +425,14 @@ interface HookContext {
}
```
`agent/prompt-submit` returns a `PromptDecision` (allow a drained queued message — optionally rewriting its `content` or attaching `additionalContexts` — or block it; a batch whose every prompt is blocked opens a zero-step turn that ends `rejected`):
`agent/prompt-submit` returns a `PromptDecision` (allow the turn's claimed queued message — optionally rewriting its `content` or attaching `additionalContexts` — or record `prompt/blocked` and end that zero-step turn as `rejected`):
```ts type-equiv
/**
* Prompt interception result. `allow.content` replaces the prompt and each
* `additionalContexts` entry becomes a separate context message. `block` records a
* durable `prompt/blocked`; an all-blocked batch ends a zero-step rejected turn.
* `additionalContexts` entry becomes a separate context message. `block`
* records a durable `prompt/blocked` and ends the claimed prompt's zero-step
* turn as rejected.
*/
type PromptDecision =
| { kind: 'allow'; content?: ContentBlock[]; additionalContexts?: HookContext[] }

2
docs/core-data-structures/persistence.md
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@@ -6,7 +6,7 @@ The seam is a textbook [capability seam](../../.agents/notes/implemented/archite
## The flush checkpoint
`session/event` is a *synchronous* notification; persistence plugins buffer it (write-behind) and drain at the awaited `session/flush` checkpoint the loop fires at every turn end. Flush is `ctx.parallel` (awaited): a turn's events are durably committed before the next turn starts, and the turn boundary is the commit boundary. A rejecting flush is reported via `agent/error` and the logger — never as a session event (it would land past the commit boundary), so the backend keeps its buffered events for the next flush.
`session/event` is a *synchronous* notification; persistence plugins buffer it (write-behind) until `session/flush`. The loop awaits an ordinary turn's checkpoint before claiming the next queue item; synchronous idle `inject()` schedules its checkpoint without blocking `send()`, and disposal still drains it. A successful flush durably commits the closed turn as one unit; a rejecting flush is reported through `agent/error` and the logger — never as a session event past the closed turn — while the backend keeps its buffered events for the next flush.
## Crash recovery preserves an interrupted turn

19
docs/core-data-structures/session.md
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@@ -17,27 +17,28 @@ The append-only event types. Merge-extensible: a plugin declares extra event typ
*/
interface SessionEventMap {
/**
* Opens turn `turn`. `trigger` records what started it — a drained message
* batch or an idle-time injection. The turn is the durability/replay
* Opens turn `turn`. `trigger` records what started it — one claimed queued
* message or an idle-time injection. The turn is the durability/replay
* boundary: every event sits between a `turn/start` and its matching
* `turn/end` (the turn-enclosure invariant).
*/
'turn/start': { turn: number; trigger: TurnTrigger }
/**
* Closes turn `turn` with the {@link TurnEndReason} that ended it. The loop
* fires the awaited `session/flush` checkpoint at every turn end, so the turn
* boundary is also the durable-commit boundary.
* awaits `session/flush` after an ordinary turn ends before claiming the next
* queued item. Success commits the turn; rejection is reported live and does
* not prevent later work.
*/
'turn/end': { turn: number; reason: TurnEndReason }
/** Opens step `step` of turn `turn` — one model call plus the tool executions it requested. */
'step/start': { turn: number; step: number }
/** Closes step `step` of turn `turn`. */
'step/end': { turn: number; step: number }
/** A user-visible prompt (queued message drained at turn start). */
/** A user-visible prompt (the queued message claimed for this turn). */
'user/message': { content: ContentBlock[]; source: MessageSource }
/**
* Durable record of a prompt veto and its reason. It is log-only: the blocked
* prompt never enters the model-visible surface, including in a mixed batch.
* prompt never enters the model-visible surface, and its turn runs zero steps.
*/
'prompt/blocked': { content: ContentBlock[]; source: MessageSource; reason: string }
/**
@@ -480,8 +481,8 @@ interface TurnEndReasonMap {
/** At least one step reached its output-token ceiling, even if a plugin continued the turn. */
'max-tokens': { kind: 'max-tokens' }
/**
* Policy blocked every prompt before the first step. The zero-step turn still
* records a balanced durable boundary and the veto reason.
* Policy blocked the turn's claimed prompt before the first step. The
* zero-step turn still records a balanced durable boundary and veto reason.
*/
rejected: { kind: 'rejected'; reason: string }
/**
@@ -492,7 +493,7 @@ interface TurnEndReasonMap {
}
```
`max-tokens` mirrors the model-call `FinishReason` of the same name: any `max-tokens` step in a turn makes the whole turn end `max-tokens` rather than `completed` (the cut-short fact wins over a later continuation), so a consumer can tell a clean stop from a truncated one — but only over `completed`: the `disposed`/`aborted`/`error` outcomes take precedence. `rejected` is a zero-step turn whose whole prompt batch an `agent/prompt-submit` hook blocked (the ACP bridge maps it to `cancelled`). `interrupted` is the one reason no loop emits — it is synthesized by crash recovery (see [persistence.md](persistence.md)). Both maps are merge-extensible.
`max-tokens` mirrors the model-call `FinishReason` of the same name: any `max-tokens` step in a turn makes the whole turn end `max-tokens` rather than `completed` (the cut-short fact wins over a later continuation), so a consumer can tell a clean stop from a truncated one — but only over `completed`: the `disposed`/`aborted`/`error` outcomes take precedence. `rejected` is a zero-step turn whose claimed prompt an `agent/prompt-submit` hook blocked (the ACP bridge maps it to `cancelled`). `interrupted` is the one reason no loop emits — it is synthesized by crash recovery (see [persistence.md](persistence.md)). Both maps are merge-extensible.
## The turn-enclosure invariant