Merge origin/master into codex/send-one-turn
# Conflicts: # docs/cordis-catalog/events.md # docs/event-producer-consumer.md # docs/persistence-catalog.md # packages/core/agent-loop/src/loop.ts # packages/core/agent/README.md # website/zh-CN/api/harness/events.md
This commit is contained in:
Tianyi Cui
@@ -159,7 +159,7 @@ interface CollectedOutput {
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## File sandbox: `BashSandboxInfo`
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A sandbox-consuming executor exposes its configured fallback through `BashExecutor.sandboxMode`. The tool layer folds each session's durable `bash/sandbox-mode` override and may replace it for one user-approved strictly wider call. The mode/enforcement vocabulary is owned by the [`@deepseek-ai/dsh-sandbox` seam](sandbox.md); modes govern file effects only.
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A sandbox-consuming executor exposes its configured fallback through `BashExecutor.sandboxMode`. The tool layer folds each session's durable `sandbox/mode` override (owned by [`@deepseek-ai/dsh-sandbox-policy`](../../packages/sandbox/sandbox-policy/README.md)) and may replace it for one user-approved strictly wider call. The mode/enforcement vocabulary is owned by the [`@deepseek-ai/dsh-sandbox` seam](sandbox.md); modes govern file effects only.
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A sandboxed run reports its mode, conservative denial classification, and enforcement completeness. `runnerFailed` marks a sandbox runner failure before the command ran; foreground execution throws `SANDBOX_UNAVAILABLE`, while a settled background process has only its facts channel.
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@@ -6,7 +6,7 @@ Source: [`packages/compact/compact/src/types.ts`](../../packages/compact/compact
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## The `compact/*` session events
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Compaction extends [`SessionEventMap`](session.md) with three event types via declaration merging. All three are **log-only** — they record the compaction lock and its provenance, and never join the surface. `SurfaceEventType` is deliberately NOT extended (only message-producing events reach the model), so the summary itself rides on a separate `user/message` with `surfaceOp: { op: 'replace', start, end }` — the only surface mutation. See the Agent Note for why reusing `user/message` is honest rather than a workaround.
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Compaction extends [`SessionEventMap`](session.md) with three event types via declaration merging. All three are **log-only** — they record the compaction lock and its provenance, and never join the surface. `SurfaceEventType` is deliberately NOT extended (only message-producing events reach the model), so the summary itself rides on a separate `user/message` with `surfaceOp: { op: 'replace', start, end }` — the only surface mutation performed by summary compaction. See the Agent Note for why reusing `user/message` is honest rather than a workaround.
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| Event | Payload | Role |
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|---|---|---|
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@@ -60,6 +60,36 @@ type CompactionTrigger = 'pressure' | 'context-overflow'
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`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. 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.
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Pressure compaction runs at serial `agent/post-step`, after successful assistant output, tool results, buffered context, and steering are durable but before `step/end`. Failed-request recovery runs through `agent/request-error` after the failed step closes, and authorizes a fresh numbered-step retry only when the surface replacement generation advances. Region boundaries preserve tool-call/result pairing but do not preserve 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.
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Pressure compaction runs at serial `agent/post-step`, after successful assistant output, tool results, buffered context, and steering are durable but before `step/end`. 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 authorizes a fresh numbered-step 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.
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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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## Tool-result pruning outcomes
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The optional tool-result pruning service reports each durable content replacement and the aggregate Unicode-code-point reduction. Its public result types live in [`compact-tool-result-prune/src/types.ts`](../../packages/compact/compact-tool-result-prune/src/types.ts).
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```ts type-equiv
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/** Provenance and size accounting for one landed surface replacement. */
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interface PrunedEntry {
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/** Full-fidelity tool-result event shadowed by the replacement. */
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readonly originalSeq: number
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/** Newly appended pruned tool-result event. */
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readonly replacementSeq: number
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/** Tool call shared by the original and replacement. */
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readonly callId: CallId
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/** Original text size in Unicode code points. */
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readonly charsBefore: number
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/** Replacement text size in Unicode code points. */
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readonly charsAfter: number
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}
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```
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```ts type-equiv
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/** Aggregate outcome of one stable-surface pruning pass. */
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interface PruneResult {
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/** Replacements in the snapshotted surface order. */
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readonly pruned: readonly PrunedEntry[]
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/** Total Unicode code points removed across replacements. */
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readonly charsRemoved: number
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}
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```
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@@ -338,13 +338,11 @@ The fourteen event variants (`turn/start`, `turn/end`, `step/start`, `step/end`,
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Source: [`packages/core/agent/src/types.ts`](../../packages/core/agent/src/types.ts)
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`InjectOptions` extends ordinary message attribution with context-only framing and durable model-hidden JSON metadata:
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`InjectOptions` extends ordinary message attribution with durable model-hidden JSON metadata:
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```ts type-equiv
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/** Options specific to durable synthetic context injection. */
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interface InjectOptions extends SendOptions {
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/** Keep the canonical context tag, or send caller-owned framing verbatim. */
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envelope?: ContextEnvelope
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/** Opaque JSON state retained in the session event but hidden from the model. */
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meta?: JsonValue
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}
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@@ -413,7 +411,7 @@ The process-local initiator carried by `ctx.agents` is the exact `Agent` above,
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## Interception decisions
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Each `agent/*` interception waterfall returns a small, seam-specific typed union — the unified Decision idiom (the tool seams' `PreToolDecision`/`PostToolDecision` in [tools.md](tools.md) follow the same shape). A CC/Codex hook bridge maps its `permissionDecision`/`decision`/`continue`/`additionalContext` fields onto these; a native plugin returns them directly. Prompt and post-tool decisions share one model-facing context shape, `HookContext`, which is `inject()`ed as a `context/message` and therefore carries a REQUIRED `source` (a missing source would default to `{kind:'user'}` and mislabel plugin context as a user prompt). Its optional `envelope` selects the canonical context tag or caller-owned raw framing, while JSON `meta` persists plugin state without exposing it to the model. Both decisions carry `additionalContexts[]` so every entry preserves its own provenance, framing, and metadata. Continuation reasons are steering messages instead and deliberately use the narrower content/source shape.
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Each `agent/*` interception waterfall returns a small, seam-specific typed union — the unified Decision idiom (the tool seams' `PreToolDecision`/`PostToolDecision` in [tools.md](tools.md) follow the same shape). A CC/Codex hook bridge maps its `permissionDecision`/`decision`/`continue`/`additionalContext` fields onto these; a native plugin returns them directly. Prompt and post-tool decisions share one model-facing context shape, `HookContext`, which is `inject()`ed as a `context/message` and therefore carries a REQUIRED `source` (a missing source would default to `{kind:'user'}` and mislabel plugin context as a user prompt). Its `content` reaches the model verbatim as a user-role message, while JSON `meta` persists plugin state without exposing it to the model. Both decisions carry `additionalContexts[]` so every entry preserves its own provenance and metadata. Continuation reasons are steering messages instead and deliberately use the narrower content/source shape.
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Source: [`packages/core/agent/src/types.ts`](../../packages/core/agent/src/types.ts)
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@@ -422,8 +420,6 @@ Source: [`packages/core/agent/src/types.ts`](../../packages/core/agent/src/types
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interface HookContext {
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content: ContentBlock[]
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source: MessageSource
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/** Keep the canonical context tag, or use caller-owned framing verbatim. */
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envelope?: ContextEnvelope
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/** Opaque JSON state retained in the session event but hidden from the model. */
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meta?: JsonValue
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}
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@@ -443,7 +439,7 @@ type PromptDecision =
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| { kind: 'block'; reason: string }
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```
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`agent/turn-continuation` returns a `ContinuationDecision` (the loop's default is `continue` when the step had tool calls or steering was injected, else `stop`; a `continue` `reason` is recorded as next-step steering in the same turn and therefore carries no context envelope or metadata — the typed `/goal` pattern):
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`agent/turn-continuation` returns a `ContinuationDecision` (the loop's default is `continue` when the step had tool calls or steering was injected, else `stop`; a `continue` `reason` is recorded as next-step steering in the same turn and therefore carries no context metadata — the typed `/goal` pattern):
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```ts type-equiv
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/** Turn continuation override; a continue reason is recorded as next-step steering in the same turn. */
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@@ -241,6 +241,7 @@ type FsErrorCode =
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| 'FS_NOT_TEXT'
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| 'FS_NOT_REGULAR_FILE'
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| 'FS_PERMISSION_DENIED'
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| 'FS_SANDBOX_DENIED'
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| 'FS_IO_ERROR'
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| 'FS_STALE_VERSION'
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| 'FS_NOT_OBSERVED'
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@@ -249,7 +250,7 @@ type FsErrorCode =
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| 'FS_ABORTED'
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```
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`FS_NOT_DIRECTORY`, `FS_PERMISSION_DENIED`, and `FS_IO_ERROR` are used by directory listing to distinguish an existing non-directory target, a denied listing, and an unexpected backend I/O failure. `FS_NOT_OBSERVED` means the policy plugin has no prior-observation record for this owner (or a `createIfAbsent` hit an existing file). `FS_STALE_VERSION` means the backend version no longer matches the observed one (or an edit hit a missing target). Freshness authorization has no partial/full distinction, so there is no `FS_PARTIAL_OBSERVATION`.
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`FS_NOT_DIRECTORY`, `FS_PERMISSION_DENIED`, and `FS_IO_ERROR` are used by directory listing to distinguish an existing non-directory target, a denied listing, and an unexpected backend I/O failure. `FS_SANDBOX_DENIED` is a POLICY refusal from a sandbox-enforcing backend (`dsh-fs-sandbox`) — the mode fence denied a write/edit — distinct from `FS_PERMISSION_DENIED` (the host kernel refusing). `FS_NOT_OBSERVED` means the policy plugin has no prior-observation record for this owner (or a `createIfAbsent` hit an existing file). `FS_STALE_VERSION` means the backend version no longer matches the observed one (or an edit hit a missing target). Freshness authorization has no partial/full distinction, so there is no `FS_PARTIAL_OBSERVATION`.
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## The service and the plugin
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@@ -4,15 +4,6 @@ The in-memory, event-sourced model of [dsh-session](../../packages/core/session)
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Source: [`packages/core/session/src/types.ts`](../../packages/core/session/src/types.ts)
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## Context framing
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`ContextEnvelope` selects the standard tagged projection or preserves a producer-owned complete frame. The latter changes framing only; the event remains a user-role `context/message` in chronological history.
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```ts type-equiv
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/** Canonical context-tag framing, or caller-owned framing rendered verbatim. */
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type ContextEnvelope = 'context' | 'raw'
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```
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## `SessionEventMap` — the event vocabulary
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The append-only event types. Merge-extensible: a plugin declares extra event types via declaration merging — e.g. the [compaction seam](compaction.md) adds `compact/start` / `compact/summary` / `compact/end`, and `@deepseek-ai/dsh-hook-protocol` adds log-only `hook/invoked` / `hook/result` provenance for a hook bridge. Like `compact/*`, these are NOT `SurfaceEventType`s (no `surfaceOp`). The generated [persistence log event catalog](../persistence-catalog.md) enumerates every member — core and merged — with its payload, surface badge, and declaration site.
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@@ -53,14 +44,17 @@ interface SessionEventMap {
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/**
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* In-session context injection (file-change notices, subdir AGENTS.md,
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* skill content, cron notifications, …). Rendered into the derived history
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* as synthetic context — NOT a user prompt. `envelope: 'raw'` lets a caller
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* own the complete model-facing frame; `meta` is durable JSON state omitted
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* from the model projection.
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* as a synthetic user-role message carrying `content` verbatim — NOT a
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* user prompt. `meta` is durable JSON state omitted from the model
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* projection; it is also the intended channel for any future framing
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* directive (a producer declares the frame, a dedicated renderer applies it —
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* see the deferred note in
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* ../../../../.agents/notes/implemented/simplification/2026-07-20-unwrap-injected-content-envelopes.md),
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* so the surface keeps projecting `content` verbatim rather than wrapping it.
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*/
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'context/message': {
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content: ContentBlock[]
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source: MessageSource
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envelope?: ContextEnvelope
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meta?: JsonValue
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}
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/** Raw stream chunk — token-level replay fidelity. */
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@@ -433,8 +427,8 @@ declare class Session {
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- `user/message` → a user message.
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- `assistant/message` → an assistant message with the event's provider/model provenance and optional adapter-private replay state. Raw `assistant/chunk` events are replay/UI data and are **skipped** in derivation (the assembled message is authoritative). An **empty-content** `assistant/message` is also skipped — a max-tokens step cut off with no content still records an `assistant/message` to host its usage/provenance, but a content-less assistant turn must not enter the provider transcript.
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- `tool/result` → a user message carrying a `tool-result` block.
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- `context/message` → a user-role message at its chronological position. The default `envelope` is `context`, which wraps content as `<context source="…">…</context>`; `envelope: 'raw'` uses caller-owned framing verbatim. Optional JSON `meta` remains in the event log and is never rendered.
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- `steering/message` → a user-role message wrapped in `<steering source="…">…</steering>` at its chronological position.
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- `context/message` → a user-role message carrying its `content` verbatim at its chronological position. Optional JSON `meta` remains in the event log and is never rendered.
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- `steering/message` → a user-role message carrying its content verbatim at its chronological position.
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Everything else (`turn/*`, `step/*`) is structural and does not project into a message. Token usage is observed on `assistant/message.usage` (the step that produced it); an operational error's step number is on `turn/end.reason` for `kind: 'error'`. Because this unreleased format intentionally has no compatibility promise, seed/load validation rejects request headers without provider+model and assistant messages without provider/model provenance instead of guessing a route for historical data.
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@@ -180,8 +180,8 @@ A tool body receives the runtime extension. `deferContext()` is the composite-to
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interface ToolRunContext extends ToolExecution {
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/**
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* Defer one nested-dispatch context until this tool's final result reaches
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* the agent loop. Contexts retain their individual source, envelope, and
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* metadata and are emitted in call order.
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* the agent loop. Contexts retain their individual source and metadata and
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* are emitted in call order.
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*/
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deferContext(context: HookContext): void
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}
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