Merge remote-tracking branch 'origin/master' into worktree/web-remote-markdown-images
# Conflicts: # packages/client/ui-primitives/README.i18n.yaml # packages/client/ui-primitives/README.md # packages/client/ui-primitives/README.zh.md # packages/client/ui-primitives/src/markdown/MarkdownText.tsx # packages/client/ui-primitives/tests/markdown.spec.tsx
This commit is contained in:
Yichen Jiang
@@ -2,5 +2,5 @@
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-06-18-compaction-capability-seam.md
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2026-06-18-compaction-capability-seam.md: 3c219b734e148b963fb5857de89c16f28c2bd402
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2026-06-18-compaction-capability-seam.zh.md: b2c7e9720b596705b60a284e6ccf1448a782b7fc
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2026-06-18-compaction-capability-seam.md: ef37313bc6fb984689793fa5a3e7ac4d9238ea88
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2026-06-18-compaction-capability-seam.zh.md: 9f123a8c40f303a2635af78cafd34de448e27e03
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@@ -18,10 +18,10 @@ Two forces shape the design. First, compaction policy and reusable token measure
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Per the [capability-seams Agent Note](../architecture/2026-06-13-capability-seams.md), compaction ships as separate packages so the contract, the algorithm, and (later) the consumer surface evolve independently:
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1. **Interface** — `@deepseek-ai/dsh-compact`: an abstract `CompactService` owning the `ctx.compact` key, the `CompactionResult` vocabulary, the `compact/*` session events, and the canonical checkpoint message source. It declares `compactIfNeeded()` and `compactRegion()` as **abstract** — the contract states *what* compaction does, not *how*.
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1. **Interface** — `@deepseek-ai/dsh-compact`: an abstract `CompactService` owning the `ctx.compact` key, the `CompactionResult` vocabulary, the `compact/*` session events, the manual failure taxonomy, and the canonical checkpoint message source. It declares `compactIfNeeded()`, `compactNow()`, and `compactRegion()` as **abstract** — the contract states *what* compaction does, not *how*.
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2. **Implementation** — `@deepseek-ai/dsh-compact-basic`: a concrete `BasicCompactService` that consumes `ctx.tokenMeter` and owns the tail→head retention walk, summarization via `ctx.llm.stream()`, the surface replacement, the lock, post-step pressure, and canonical context-overflow recovery. `summarize()` is its sole subclass hook; pricing and replay stay with the meter.
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3. **Model-free companion** — `@deepseek-ai/dsh-compact-tool-result-prune`: a concrete optional service that rewrites oversized current `tool/result` nodes before the backend selects a summary range. It is not a second compaction implementation and does not implement `CompactService`.
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4. **Consumer** — deferred. A `/compact` tool and slash command will `inject: ['compact']` and call the contract; they are intentionally out of scope here so the seam settles first.
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4. **Human consumer** — `@deepseek-ai/dsh-command-compact` registers argument-free `/compact` through `ctx.commands` and calls the backend-independent `compactNow()` operation. It is direct human control, not a model-facing tool.
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### The contract depends on `dsh-session` and `dsh-llm` — a deliberate deviation
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@@ -29,11 +29,11 @@ The capability-seams Agent Note states the interface package "depends only on co
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This is not a coupling smell — it is the contract's domain. The "only cordis" guidance was always shorthand for "the interface depends only on what the contract genuinely names, and never on an implementation." `dsh-session` and `dsh-llm` are themselves interface/vocabulary packages, not implementations; `dsh-compact` still imports no backend. The seam's real invariant — *consumers and implementations evolve independently behind an abstract service* — holds intact.
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### Abstract `compactIfNeeded` / `compactRegion`, algorithm in the backend
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### Three abstract operations, algorithm in the backend
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An earlier draft put the full algorithm (the retention walk, token-summing, text extraction) as concrete methods on the interface. That recouples the contract to one strategy: a backend that wants a different retention policy or event sequence would have to fight inherited concrete code. Making both core methods abstract puts every *how* decision in the backend and keeps the interface a statement of *what*. Token measurement is not a compaction hook at all; the singleton service lets multiple consumers share one per-session replay fold.
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An earlier draft put the full algorithm (the retention walk, token-summing, text extraction) as concrete methods on the interface. That recouples the contract to one strategy: a backend that wants a different retention policy or event sequence would have to fight inherited concrete code. Making all three operations abstract puts every *how* decision in the backend and keeps the interface a statement of *what*. Token measurement is not a compaction hook at all; the singleton service lets multiple consumers share one per-session replay fold.
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`compactIfNeeded(agent, trigger, signal)` takes an explicit `'pressure' | 'context-overflow'` trigger and cancellation. It reads only the latest durable routed request; no header means no work, while any routed provider/model target uses the singleton estimator. `compactRegion(start, end, agent, signal?)` uses `agent.session` as its single session identity and keeps an optional signal for manual callers. The default summarizer resolves its target from explicit config, the latest logged routed target, then agent options, and records the provider/model pair after any `llm/stream` routing. It replays the routed request's prefix and appends the compaction directive as a trailing user message so the provider's warm KV cache is reused — see the [summary prefix-cache Agent Note](../bug-fix/2026-07-21-compaction-summary-prefix-cache-reuse.md). The call sets the provider-neutral `GenerateOptions.purpose` to `compaction`; adapters may map that purpose to model-hidden transport metadata, and the DeepSeek adapter sends `x-deepseek-harness-compact: 1`.
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`compactIfNeeded(agent, trigger, signal)` takes an explicit `'pressure' | 'context-overflow'` trigger and cancellation. It reads only the latest durable routed request; no header means no work, while any routed provider/model target uses the singleton estimator. `compactNow(agent, signal)` reserves idle turn admission and performs one useful balanced reduction even below pressure, returning `null` without writes when none exists. `compactRegion(start, end, agent, signal?)` uses `agent.session` as its single session identity and keeps an optional signal for explicit callers. The default summarizer resolves its target from explicit config, the latest logged routed target, then agent options, and records the provider/model pair after any `llm/stream` routing. It replays the routed request's prefix and appends the compaction directive as a trailing user message so the provider's warm KV cache is reused — see the [summary prefix-cache Agent Note](../bug-fix/2026-07-21-compaction-summary-prefix-cache-reuse.md). The call sets the provider-neutral `GenerateOptions.purpose` to `compaction`; adapters may map that purpose to model-hidden transport metadata, and the DeepSeek adapter sends `x-deepseek-harness-compact: 1`.
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### Automatic pressure runs after successful durable step work
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@@ -91,42 +91,44 @@ The basic backend wraps the summary as established checkpoint context and tags i
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### Blocking via a log-recorded lock, plus a crash/recoverable failure taxonomy
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The `compact/start … compact/end` bracket is justified, in order of what now does the work:
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The `compact/start … compact/end` bracket is justified by two roles:
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1. **Crash-detectable orphan + provenance** (primary). Summarization is a slow model call persisted *after* `compact/start`. A crash mid-summarization leaves a `compact/start` with no matching `compact/end` — a detectable orphan. Releasing the lock last (rather than first) converts the crash window from *silent corruption* into that detectable orphan.
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2. **Prevents concurrent compaction.** `compactRegion` refuses to start if the current turn holds an unmatched `compact/start`. (The loop is single-threaded across either awaited automatic seam, so this is also a re-entry tripwire — a thrown "already in progress" signals a real bug.)
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2. **Prevents concurrent compaction.** Every automatic, manual, and explicit-range entry point refuses a live unmatched `compact/start`. The bracket is the single lock; no process-local mutex duplicates it.
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The lock excludes another compaction, not unrelated log-only facts. The basic backend snapshots the token meter's surface nodes after `compact/start` and compares them again after asynchronous summarization; any surface mutation rejects before replacement, while a title or other log-only append leaves the selected span valid.
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The lock excludes another compaction, not unrelated facts. Its markers are time points rather than an exclusive container, so idle injected context may appear between a standalone manual start and end. Automatic work requires whole-surface stability inside its turn. Manual work revalidates only the selected positional span, letting append-only context outside it remain visible after replacement.
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Two failure paths, both documented:
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The lifecycle boundary makes crash state unambiguous:
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- **Crash** (the loop dies mid-summarization): a dangling `compact/start`, no closer. Because `compact/*` are **log-only**, the orphan is **inert** — no summary replacement lands. The derived surface remains the durable surface present at `compact/start`: full history when pruning made no replacement, or the already-pruned history when it did. Generic turn-repair (`interruptedTurnClosers`) closes the turn with a synthetic `turn/end`; the orphan sits *before* that `turn/end`, so the turn-scoped in-progress check never sees it and a crash cannot wedge future compaction.
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- **Recoverable** (summarization throws but the loop survives): the backend appends `compact/end` with its **`error`** field set and lands no summary replacement. Post-step pressure warns and continues from the latest durable surface — full history if no replacement preceded the attempt, or the pruned surface if pruning already landed. Overflow recovery delegates only before any replacement; generation progress from earlier pruning authorizes a retry from that durable surface unless cancellation or disposal wins.
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- **Current lifecycle:** a dangling `compact/start` after the newest `session/end-seed` is the live durable lock and reports busy.
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- **Later lifecycle:** a newer constructor-written `session/end-seed` proves that the older unmatched start is stale, so resume, fork, and adoption do not remain wedged by a dead writer.
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- **Recoverable failure:** once start lands, the backend makes exactly one `compact/end { error }` attempt. Summary or stability failure leaves the conversation surface unchanged while preserving the failed attempt in the log. If the close append fails, the unmatched start remains intentionally blocking.
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`compact/end` keeps its `error?` field (mirroring `tool/result`'s self-contained error — one event tells success from failure without correlating a sibling). There is no separate `compact/error` event.
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**Core session repair stays compaction-agnostic — deliberately.** `interruptedTurnClosers` is never taught about `compact/*`. Teaching it would force every future `xxx/start … xxx/end` plugin pair to patch a core module — exactly the coupling the capability-seam architecture exists to avoid. Because the log-only orphan is inert, no special repair is needed: generic turn-repair plus the inertness of an un-landed surface mutation is sufficient.
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**Core session repair stays compaction-agnostic — deliberately.** `interruptedTurnClosers` is never taught about `compact/*`. The general `session/end-seed` lifecycle boundary supplies the evidence the compaction owner needs; the compaction invariant and backend interpret it without adding plugin-specific repair to core.
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## Alternatives considered
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- **The full algorithm as concrete interface methods** — rejected because it recouples the contract to one retention strategy. Both core methods are abstract; reusable measurement is a separate LLM-family service and `summarize()` is basic's sole hook.
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- **The full algorithm as concrete interface methods** — rejected because it recouples the contract to one retention strategy. All three operations are abstract; reusable measurement is a separate LLM-family service and `summarize()` is basic's sole hook.
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- **Compaction on `agent/request` or provisional `agent/pre-step` inputs** — rejected because neither proves the final durable request and both couple generic lifecycle to compaction-specific envelope data. Post-step replay plus canonical overflow recovery covers both successful and rejected calls.
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- **A `compact` boolean or untyped request metadata map** — rejected because multiple auxiliary call kinds would become mutually exclusive flags, while an open bag would discard compiler-checked vocabulary. One typed `purpose` discriminant extends with additional call kinds without adding another `GenerateOptions` field.
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- **A separate `compact/error` event** — rejected: `compact/end` keeps an `error?` field, mirroring `tool/result`'s self-contained error — one event tells success from failure without correlating a sibling.
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- **Teaching core turn-repair about `compact/*`** — rejected: the log-only orphan is inert, and a core module patched for every future `xxx/start … xxx/end` plugin pair is exactly the coupling the capability-seam architecture exists to avoid.
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- **Teaching core turn-repair about `compact/*`** — rejected: the general end-seed boundary already distinguishes prior-lifecycle history, and patching core for every future `xxx/start … xxx/end` pair is exactly the coupling the capability-seam architecture exists to avoid.
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## Consequences
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- **Packages**: `packages/compact/compact` supplies the interface, `compact-basic` supplies the backend, and `compact-tool-result-prune` supplies optional deterministic rewriting. `packages/llm/token-meter` owns replay-aware measurement independently. The consumer tier is deferred.
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- **Packages**: `packages/compact/compact` supplies the interface, `compact-basic` supplies the backend, `compact-tool-result-prune` supplies optional deterministic rewriting, and `command-compact` supplies human `/compact`. `packages/llm/token-meter` owns replay-aware measurement independently.
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- **Automatic seams**: `agent/post-step` (`@mode serial`) handles successful-call pressure and `agent/request-error` (`@mode waterfall`) handles final request failures after the failed step closes. Generic `agent/pre-step` remains a four-argument checkpoint with no compaction-only prompt/prefix payload.
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- **`SessionEventMap`** gains `compact/start` / `compact/summary` / `compact/end` by declaration merging (merge-extensible); `SurfaceEventType` is **not** touched. These are session events, not cordis `Events`, so the event-taxonomy gate needs no entry.
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- **`dsh-compact`** owns `COMPACT_CHECKPOINT_SOURCE`, `isCompactCheckpointSource(source)`, `toolPairingBalancedBefore(session, seq)`, and `toolPairingBalancedAfter(session, seq)`. The marker identifies replacement summaries across backend implementations. The cached surface-edge checks prevent `compactRegion` and `compactIfNeeded` from splitting a tool-call/result pair, validate current membership by seq, answer both edges from one per-cut balance sequence, and reject stale or missing seqs and orphan results.
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- **`dsh-session`** validates positional replacement, complete provenance, and content-only single-node `tool/result` rewrites through its one surface manager. Its invariant companion treats fresh appended tool results as executions that require an open step and pending call; validated replacements remain turn-enclosed rewrites.
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- **Wiring**: `examples/tui-agent/cordis.yml` loads zero-config `dsh-token-meter`, `dsh-compact-tool-result-prune`, then `dsh-compact-basic`; service-wide defaults make the composition usable without repeated numeric policy.
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- **`dsh-session`** validates positional replacement, complete provenance, and content-only single-node `tool/result` rewrites through its one surface manager. Its invariant companion treats fresh appended tool results as executions that require an open step and pending call, while the compaction companion owns numeric-turn versus standalone-null bracket relations.
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- **Wiring**: `examples/tui-agent/cordis.yml` loads zero-config `dsh-token-meter`, `dsh-compact-tool-result-prune`, `dsh-compact-basic`, then `dsh-command-compact`; service-wide defaults make the composition usable without repeated numeric policy.
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## Testing
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- **Unit:** Real Loader and invariant plugins cover whole-unit retention, pruning configuration and replay, rich-block ordering, metadata preservation, convergence, both `compact/end` outcomes, open-tail refusal, pruning-only and summarized overflow recovery, generation proof, caps, and original-error preservation.
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- **Loop:** Tests pin post-step after durable tool results and before `step/end`, actual `agent/request` routing, closed failed steps, fresh retry numbering, and complete thrown/in-band overflow → compaction → reconstructed retry composition.
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- **Manual:** Admission, marker ordering, injection retention, live/stale orphan classification, cancellation, close/flush failures, command mapping, and the queued TUI journey are pinned without a model key.
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- **With-key e2e:** A real model and bash session with lowered limits triggers compaction, records a complete `compact/start…end` pair, shrinks the surface, and finishes the task.
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- **Snapshot gap:** Runaway-turn compaction cannot yet replay because the summarization call records no `assistant/chunk` events or `sessionId`; interleaved summarization-call replay remains follow-up work.
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@@ -18,10 +18,10 @@ Status: implemented
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遵循[能力 seam Agent Note（agent 决策记录）](../architecture/2026-06-13-capability-seams.md)，压缩以独立包（package）发布，使契约、算法和（后续的）消费方 surface 各自独立演进：
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1. **接口** — `@deepseek-ai/dsh-compact`：抽象 `CompactService`，拥有 `ctx.compact` 键、`CompactionResult` 词汇、`compact/*` 会话事件以及规范的检查点消息来源。它将 `compactIfNeeded()` 和 `compactRegion()` 声明为**抽象方法**——契约说明压缩*做什么*，而非*怎么做*。
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1. **接口** — `@deepseek-ai/dsh-compact`：抽象 `CompactService`，拥有 `ctx.compact` 键、`CompactionResult` 词汇、`compact/*` 会话事件、手动失败分类体系以及规范的检查点消息来源。它将 `compactIfNeeded()`、`compactNow()` 和 `compactRegion()` 声明为**抽象方法**——契约说明压缩*做什么*，而非*怎么做*。
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2. **实现** — `@deepseek-ai/dsh-compact-basic`：具体的 `BasicCompactService`，消费 `ctx.tokenMeter`，并拥有尾→头保留遍历、通过 `ctx.llm.stream()` 生成摘要、surface 替换、锁、步骤后压力处理和规范的上下文溢出恢复。`summarize()` 是其唯一的子类钩子；计价与回放仍归 meter 所有。
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3. **无模型配套服务** — `@deepseek-ai/dsh-compact-tool-result-prune`：一个具体的可选服务，在后端选择摘要范围之前，重写当前过大的 `tool/result` 节点。它不是第二种压缩实现，也不实现 `CompactService`。
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4. **消费方** — 推迟。一个 `/compact` 工具和斜杠命令将 `inject: ['compact']` 并调用契约；它们被有意排除在本 Agent Note 范围之外，以便 seam 先稳定下来。
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4. **面向用户的消费方** — `@deepseek-ai/dsh-command-compact` 通过 `ctx.commands` 注册无参数 `/compact`，并调用后端无关的 `compactNow()` 操作。它是供用户直接控制的命令，不是面向模型的工具。
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### 契约依赖 `dsh-session` 和 `dsh-llm`——有意为之的偏离
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@@ -29,11 +29,11 @@ Status: implemented
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这不是耦合异味，而是契约的领域所在。「仅 cordis」的指导原则一直是「接口仅依赖契约真正需要命名的东西，绝不依赖实现」的简写。`dsh-session` 和 `dsh-llm` 本身是接口/词汇包，不是实现；`dsh-compact` 仍然不导入任何后端。seam 的真正不变式——*消费方和实现在抽象服务背后独立演进*——完好无损。
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### 抽象 `compactIfNeeded` / `compactRegion`，算法在后端
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### 三个抽象操作，算法在后端
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早期草案将完整算法（保留遍历、token 求和、文本提取）作为接口上的具体方法。这会将契约重新耦合到一种策略：想要不同保留策略或事件排序的后端必须与继承来的具体代码对抗。将两个核心方法都设为抽象，把所有*怎么做*的决策放在后端，并让接口保持为*做什么*的声明。token 测量根本不是压缩钩子；单例服务使多个消费方能够共享逐会话的回放折叠。
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早期草案将完整算法（保留遍历、token 求和、文本提取）作为接口上的具体方法。这会将契约重新耦合到一种策略：想要不同保留策略或事件排序的后端必须与继承来的具体代码对抗。将三个操作都设为抽象，把所有*怎么做*的决策放在后端，并让接口保持为*做什么*的声明。token 测量根本不是压缩钩子；单例服务使多个消费方能够共享逐会话的回放折叠。
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`compactIfNeeded(agent, trigger, signal)` 接受显式的 `'pressure' | 'context-overflow'` 触发原因与取消信号。它只读取最新的持久化已路由请求；没有 header 就不执行工作，任何已路由的提供方/模型目标都使用单例估算器。`compactRegion(start, end, agent, signal?)` 将 `agent.session` 作为唯一会话身份，并为手动调用方保留可选 signal。默认摘要器依次从显式配置、最新记录的已路由目标和 agent 选项解析目标，并在任何 `llm/stream` 路由后记录提供方/模型对。它回放已路由请求的前缀，并将压缩指令追加为尾部 user 消息，从而复用提供方的热 KV cache；见[摘要前缀缓存 Agent Note](../bug-fix/2026-07-21-compaction-summary-prefix-cache-reuse.md)。该调用将提供方无关的 `GenerateOptions.purpose` 设为 `compaction`；适配器可以将此用途映射为对模型隐藏的传输元数据，DeepSeek 适配器会发送 `x-deepseek-harness-compact: 1`。
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`compactIfNeeded(agent, trigger, signal)` 接受显式的 `'pressure' | 'context-overflow'` 触发原因与取消信号。它只读取最新的持久化已路由请求；没有 header 就不执行工作，任何已路由的提供方/模型目标都使用单例估算器。`compactNow(agent, signal)` 会预留空闲轮次接纳，即使未达到压力也进行一次有效的平衡缩减；不存在这种范围时返回 `null`，且不写入任何内容。`compactRegion(start, end, agent, signal?)` 将 `agent.session` 作为唯一会话身份，并为显式调用方保留可选 signal。默认摘要器依次从显式配置、最新记录的已路由目标和 agent 选项解析目标，并在任何 `llm/stream` 路由后记录提供方/模型对。它回放已路由请求的前缀，并将压缩指令追加为尾部 user 消息，从而复用提供方的热 KV cache；见[摘要前缀缓存 Agent Note](../bug-fix/2026-07-21-compaction-summary-prefix-cache-reuse.md)。该调用将提供方无关的 `GenerateOptions.purpose` 设为 `compaction`；适配器可以将此用途映射为对模型隐藏的传输元数据，DeepSeek 适配器会发送 `x-deepseek-harness-compact: 1`。
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### 成功的持久步骤工作完成后运行自动压力检查
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@@ -91,42 +91,44 @@ compact/end → log-only. Releases the lock (carries `error` on a recoverab
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### 通过日志记录的锁实现阻塞，加上崩溃/可恢复失败的分类
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`compact/start … compact/end` 括号的存在理由，按当前实际承担的职责排序：
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`compact/start … compact/end` 标记对承担两项职责：
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1. **可检测的崩溃孤儿 + 来源追溯**（首要）。摘要生成是一次慢速模型调用，持久化在 `compact/start` *之后*。摘要生成中途崩溃会留下一个没有匹配 `compact/end` 的 `compact/start`——一个可检测的孤儿。最后释放锁（而非最先）将崩溃窗口从*静默损坏*转变为可检测的孤儿。
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2. **防止并发压缩。** 如果当前轮次持有未匹配的 `compact/start`，`compactRegion` 拒绝启动。（循环在任一 awaited 自动 seam 上都是单线程的，因此这也是重入绊线——抛出「already in progress」表示真正的 bug。）
|
||||
2. **防止并发压缩。** 每个自动、手动和显式范围入口点都会拒绝活动的未匹配 `compact/start`。该标记对就是唯一的锁；没有进程本地 mutex 重复承担同一职责。
|
||||
|
||||
该锁只排除另一项压缩，不排除无关的仅日志事实。基础后端会在 `compact/start` 之后对 token meter 的 surface 节点取快照，并在异步摘要后再次比较；任何 surface 变更都会使替换前的检查失败，而标题或其他仅日志追加不会使已选范围失效。
|
||||
该锁只排除另一项压缩，不排除无关事实。其标记是时间点，而不是排他的容器，因此空闲注入的上下文可以出现在独立手动 start 与 end 之间。自动工作要求其轮次内的整个 surface 保持稳定。手动工作只重新验证所选位置 span，使其外部的仅追加上下文在替换后保持可见。
|
||||
|
||||
两种失败路径，均有文档记录：
|
||||
生命周期边界使崩溃状态含义明确：
|
||||
|
||||
- **崩溃**（循环在摘要生成中途死亡）：悬空的 `compact/start`，无关闭事件。由于 `compact/*` 是**仅日志**事件，孤儿是**惰性的**，不会落地摘要替换。派生 surface 保持为 `compact/start` 时已经持久化的 surface：如果修剪未产生替换，就是完整历史；如果已经修剪，就是已修剪历史。通用轮次修复（`interruptedTurnClosers`）用合成的 `turn/end` 关闭轮次；孤儿位于该 `turn/end` *之前*，因此轮次范围内的进行中检查永远看不到它，崩溃不会卡住未来的压缩。
|
||||
- **可恢复**（摘要生成抛出异常但循环存活）：后端追加设置了 **`error`** 字段的 `compact/end`，但不落地摘要替换。步骤后压力处理发出警告，并从最新的持久 surface 继续：如果尝试前没有替换，就是完整历史；如果修剪已经落地，就是已修剪 surface。溢出恢复只会在没有任何替换前委托；先前修剪带来的 generation 进展允许从该持久 surface 重试，除非取消或资源释放胜出。
|
||||
- **当前生命周期：** 最新 `session/end-seed` 之后悬空的 `compact/start` 是活动的持久锁，并报告 busy。
|
||||
- **后续生命周期：** 构造函数写入的较新 `session/end-seed` 证明更早的未匹配 start 已陈旧，因此恢复、fork 和接手不会被已死的写入方持续卡住。
|
||||
- **可恢复失败：** start 落地后，后端会恰好尝试一次 `compact/end { error }`。摘要或稳定性失败会保持会话 surface 不变，同时在日志中保留失败尝试。如果追加闭合事件失败，未匹配 start 会继续有意阻塞。
|
||||
|
||||
`compact/end` 保留其 `error?` 字段（与 `tool/result` 的自包含错误一致——一个事件即可区分成功与失败，无需关联兄弟事件）。没有单独的 `compact/error` 事件。
|
||||
|
||||
**核心会话修复保持对压缩无感知——这是有意为之。** `interruptedTurnClosers` 从不被教导 `compact/*`。如果教导它，每个未来的 `xxx/start … xxx/end` 插件对都必须修补核心模块——这恰好是能力 seam 架构存在的意义所要避免的耦合。由于仅日志的孤儿是惰性的，不需要特殊修复：通用轮次修复加上未落地 surface 变更的惰性就足够了。
|
||||
**核心会话修复保持对压缩无感知——这是有意为之。** `interruptedTurnClosers` 从不被教导 `compact/*`。通用 `session/end-seed` 生命周期边界提供压缩所有方所需的证据；压缩不变量与后端负责解释它，无需向核心添加插件专属修复。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
- **完整算法作为接口的具体方法**——否决，因为它将契约重新耦合到一种保留策略。两个核心方法都是抽象的；可复用测量属于单独的 LLM 系列服务，`summarize()` 是 basic 唯一的钩子。
|
||||
- **完整算法作为接口的具体方法**——否决，因为它将契约重新耦合到一种保留策略。三个操作都是抽象的；可复用测量属于单独的 LLM 系列服务，`summarize()` 是 basic 唯一的钩子。
|
||||
- **在 `agent/request` 或临时 `agent/pre-step` 输入上执行压缩**——否决，因为两者都无法证明最终的持久请求，而且都会将通用生命周期耦合到压缩专属的信封数据。步骤后回放与规范溢出恢复同时覆盖成功和被拒绝的调用。
|
||||
- **`compact` 布尔值或无类型的请求元数据 map**——否决，因为多个辅助调用种类会变成互斥标志，而开放 map 会丢弃由编译器检查的词汇。一个类型化的 `purpose` 判别字段可以扩展其他调用种类，而无需再为 `GenerateOptions` 添加字段。
|
||||
- **单独的 `compact/error` 事件**——否决：`compact/end` 保留 `error?` 字段，与 `tool/result` 的自包含错误一致——一个事件即可区分成功与失败，无需关联兄弟事件。
|
||||
- **教导核心轮次修复识别 `compact/*`**——否决：仅日志的孤儿是惰性的，为每个未来的 `xxx/start … xxx/end` 插件对修补核心模块恰好是能力 seam 架构存在的意义所要避免的耦合。
|
||||
- **教导核心轮次修复识别 `compact/*`**——否决：通用 end-seed 边界已经能够区分先前生命周期的历史；为每个未来的 `xxx/start … xxx/end` 插件对修补核心模块，恰好是能力 seam 架构存在的意义所要避免的耦合。
|
||||
|
||||
## 后果
|
||||
|
||||
- **包**：`packages/compact/compact` 提供接口，`compact-basic` 提供后端，`compact-tool-result-prune` 提供可选的确定性重写。`packages/llm/token-meter` 独立拥有回放感知的测量。消费方层推迟。
|
||||
- **包**：`packages/compact/compact` 提供接口，`compact-basic` 提供后端，`compact-tool-result-prune` 提供可选的确定性重写，`command-compact` 提供面向用户的 `/compact`。`packages/llm/token-meter` 独立拥有回放感知的测量。
|
||||
- **自动 seam**：`agent/post-step`（`@mode serial`）处理成功调用的压力，`agent/request-error`（`@mode waterfall`）处理失败步骤关闭后的最终请求失败。通用 `agent/pre-step` 保持为四参数检查点，不携带压缩专属的提示词/前缀 payload。
|
||||
- **`SessionEventMap`** 通过可合并扩展的声明合并获得 `compact/start` / `compact/summary` / `compact/end`；`SurfaceEventType` **未被**触及。这些是会话事件，不是 cordis `Events`，因此事件分类门禁无需新增条目。
|
||||
- **`dsh-compact`** 拥有 `COMPACT_CHECKPOINT_SOURCE`、`isCompactCheckpointSource(source)`、`toolPairingBalancedBefore(session, seq)` 与 `toolPairingBalancedAfter(session, seq)`。该标记用于跨后端实现识别替换摘要。带缓存的 surface 边缘检查会防止 `compactRegion` 和 `compactIfNeeded` 拆分工具调用/结果对，按 seq 校验当前成员关系，从每个切割点的一条平衡序列回答两侧边缘，并拒绝陈旧或缺失的 seq 与孤立结果。
|
||||
- **`dsh-session`** 通过唯一的 surface 管理器校验位置替换、完整溯源信息和仅内容的单节点 `tool/result` 重写。其不变式配套插件将新追加的工具结果视为执行，要求存在已打开的步骤与待处理调用；已校验的替换仍是位于轮次内的重写。
|
||||
- **接线**：`examples/tui-agent/cordis.yml` 依次加载零配置的 `dsh-token-meter`、`dsh-compact-tool-result-prune` 和 `dsh-compact-basic`；服务级默认值使组合无需重复数值策略即可使用。
|
||||
- **`dsh-session`** 通过唯一的 surface 管理器校验位置替换、完整溯源信息和仅内容的单节点 `tool/result` 重写。其不变式配套插件将新追加的工具结果视为执行，要求存在已打开的步骤与待处理调用，而压缩配套组件拥有数字轮次归属与独立 `null` 归属标记对之间的关系。
|
||||
- **接线**：`examples/tui-agent/cordis.yml` 依次加载零配置的 `dsh-token-meter`、`dsh-compact-tool-result-prune`、`dsh-compact-basic`，然后加载 `dsh-command-compact`；服务级默认值使组合无需重复数值策略即可使用。
|
||||
|
||||
## 测试
|
||||
|
||||
- **单元测试：** 使用真实 Loader 和 invariant 插件覆盖完整单元保留、修剪配置与回放、富块顺序、元数据保留、收敛、`compact/end` 的两种结果、开放尾部拒绝、仅修剪与带摘要的溢出恢复、generation 证明、上限和原始错误保留。
|
||||
- **循环测试：** 测试固定步骤后处理发生在持久工具结果之后、`step/end` 之前，使用实际 `agent/request` 路由，关闭失败步骤，分配新的重试编号，并覆盖完整的抛出/带内溢出 → 压缩 → 重建重试组合。
|
||||
- **手动测试：** 无需模型密钥即可固定接纳、标记顺序、注入保留、活动／陈旧未匹配标记分类、取消、闭合／flush 失败、命令映射以及排队 TUI 流程。
|
||||
- **带密钥 e2e：** 真实模型和 bash 会话在降低的限制下触发压缩，记录完整的 `compact/start…end` 对，缩小 surface，并完成任务。
|
||||
- **快照缺口：** 失控轮次压缩尚无法回放，因为摘要调用未记录 `assistant/chunk` 事件或 `sessionId`；交错摘要调用的回放仍是后续工作。
|
||||
|
||||
@@ -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
|
||||
2026-06-21-subagent-capability-seam.md: 9c17a93751de209e5e4e5a0ca7d7b1d8e5656a47
|
||||
2026-06-21-subagent-capability-seam.zh.md: 6294c84a8fa11e492316f4b69048aa5f477aa04f
|
||||
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-06-21-subagent-capability-seam.md
|
||||
2026-06-21-subagent-capability-seam.md: 043092884731c403a11b71ef8b5a410e9e5af7e0
|
||||
2026-06-21-subagent-capability-seam.zh.md: 6a4a5798199ca7d6d7c011668a319d65a0553208
|
||||
|
||||
@@ -38,12 +38,12 @@ A new package group `packages/subagent/`:
|
||||
|
||||
### The primitive: async `start → SubagentRun`
|
||||
|
||||
A provider exposes `start(request) → Promise<SubagentRun>`. Fulfillment publishes a ready child and transfers its run handle to the caller. One signal covers cancellation before and after readiness; `dispose()` cancels remaining work and awaits quiescence. A rejected start cleans partial resources and emits no lifecycle event. `start` is transport-neutral; `spawn` names only the fresh in-process backend.
|
||||
A provider exposes `start(request) → Promise<SubagentRun>`. Fulfillment publishes a child and transfers its run handle to the caller. Work that fails before publication rejects `start()`, while prompt, turn, cancellation, and infrastructure outcomes after publication settle through `run.result` without hiding the child id. One signal covers cancellation before and after publication; `dispose()` cancels remaining work and awaits quiescence. A rejected start cleans unpublished resources and emits no lifecycle event, while a post-publication result failure closes the published lifecycle pair. `start` is transport-neutral; `spawn` names only the fresh in-process backend.
|
||||
|
||||
### Two kinds of optional capability, discovered two ways
|
||||
|
||||
- **Start-time features** (`outputSchema`, `depthLimit`, `toolFilter`, `persona`) ride on a static `provider.capabilities` descriptor. The service checks every requested one BEFORE delegating and **rejects loud** (`SubagentError('UNSUPPORTED_CAPABILITY')`) if the provider lacks it — never accepted-then-ignored. They must be checked before a run exists, which is why they cannot be runtime methods.
|
||||
- **Runtime features** (steering via `sendMessage`, follow-up via `resume`) are **optional methods** on `SubagentRun`. The method's presence IS the capability, and TypeScript narrowing is the discovery mechanism: a consumer cannot call an absent method without narrowing first, so there is no silent-degradation path and no separate flags object to keep in sync.
|
||||
- **Continuable creation** is the optional `SubagentProvider.prepareContinuable` method; presence is the capability and TypeScript narrowing is the discovery mechanism, so no separate flag can drift from the implementation. The continuation manager owns later delivery and cold resume directly through `AgentHandle`, while one-shot `SubagentRun` has no steering or resume operation, as refined by [continuable subagents](2026-07-28-continuable-subagent-conversations.md).
|
||||
|
||||
### Fork vs. fresh are separate backends, not a flag
|
||||
|
||||
@@ -55,7 +55,7 @@ Each subagent runs in its **own `Session`** (own id, `parentSession` lineage), p
|
||||
|
||||
### Synchronous collect (first cut)
|
||||
|
||||
`dsh-tool-subagent` passes its execution signal to `start()`, awaits the child result, and disposes the run in `finally`. Non-completed outcomes become error results rather than successful partial output. This foreground consumer does not use the run's optional steering method.
|
||||
`dsh-tool-subagent` passes its execution signal to `start()`, awaits the child result, and disposes the run before reporting. Non-completed outcomes become error results rather than successful partial output, and independent result and disposal rejections retain both diagnostics.
|
||||
|
||||
### Provider selection is config, not model-facing
|
||||
|
||||
|
||||
@@ -38,12 +38,12 @@ bash seam（[能力 seam](../architecture/2026-06-13-capability-seams.md)）在
|
||||
|
||||
### 原语：异步 `start → SubagentRun`
|
||||
|
||||
提供方暴露 `start(request) → Promise<SubagentRun>`。完成时发布一个就绪的子 agent 并将其运行句柄转交给调用方。一个信号覆盖就绪前后的取消；`dispose()`（资源释放）取消剩余工作并等待完全停稳。启动失败时清理部分资源，不发出生命周期事件。`start` 与传输方式无关；`spawn` 仅指代全新的进程内后端。
|
||||
提供方暴露 `start(request) → Promise<SubagentRun>`。完成时发布一个子 agent，并将其运行句柄转交给调用方。发布前失败的工作会拒绝 `start()`，而发布后的提示词、轮次、取消与基础设施结果会通过 `run.result` 结算，且不会隐藏 child id。同一个信号覆盖发布前后的取消；`dispose()`（资源释放）取消剩余工作并等待完全停稳。启动被拒绝时会清理未发布资源，且不发出生命周期事件；发布后的结果失败则会结束已经发布的生命周期事件对。`start` 与传输方式无关；`spawn` 仅指代全新的进程内后端。
|
||||
|
||||
### 两类可选能力，两种发现方式
|
||||
|
||||
- **启动时功能**（`outputSchema`、`depthLimit`、`toolFilter`、`persona`）挂在静态的 `provider.capabilities` 描述符上。服务在委派之前检查每个被请求的功能，如果提供方不支持则**大声拒绝**（`SubagentError('UNSUPPORTED_CAPABILITY')`），绝不接受后静默忽略。这些功能必须在 run 存在之前检查，因此不能是运行时方法。
|
||||
- **运行时功能**（通过 `sendMessage` 进行 steering、通过 `resume` 进行后续对话）是 `SubagentRun` 上的**可选方法**。方法的存在本身即为能力，TypeScript 类型收窄即为发现机制：消费方不经收窄就无法调用不存在的方法，因此不存在静默降级路径，也不需要额外的 flags 对象来保持同步。
|
||||
- **可继续创建**使用可选的 `SubagentProvider.prepareContinuable` 方法；方法是否存在本身即为能力，TypeScript 类型收窄即为发现机制，因此不需要可能与实现失同步的独立 flag。继续执行管理器直接通过 `AgentHandle` 负责后续投递与从持久化存储恢复，而一次性 `SubagentRun` 没有 steering 或 resume 操作，具体由[可继续 subagent](2026-07-28-continuable-subagent-conversations.md)细化。
|
||||
|
||||
### Fork 与 fresh 是独立后端，而非一个 flag
|
||||
|
||||
@@ -55,7 +55,7 @@ bash seam（[能力 seam](../architecture/2026-06-13-capability-seams.md)）在
|
||||
|
||||
### 同步收集（首版）
|
||||
|
||||
`dsh-tool-subagent` 将其执行信号传给 `start()`，等待子 agent 结果，并在 `finally` 中 dispose 该 run。非完成态的结果变为错误结果，而非成功的部分输出。这个前台消费方不使用 run 的可选 steering 方法。
|
||||
`dsh-tool-subagent` 将其执行信号传给 `start()`，等待子 agent 结果，并在报告前 dispose 该 run。非完成态的结果变为错误结果，而非成功的部分输出；相互独立的结果与 dispose rejection 会保留两项 diagnostic。
|
||||
|
||||
### 提供方选择是配置，不面向模型
|
||||
|
||||
|
||||
@@ -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/2026-06-30-session-store-fork-api.md
|
||||
2026-06-30-session-store-fork-api.md: 5342deba8ca879026d32ee1420cb3c0fdf67c500
|
||||
2026-06-30-session-store-fork-api.zh.md: 51a3e0ce50aff10a9812c91d24dc6e78a56c43ba
|
||||
2026-06-30-session-store-fork-api.md: 69ff85e1f137f4f263bf951af0a3f655411c606a
|
||||
2026-06-30-session-store-fork-api.zh.md: 3304a6f384c9004b3572c95881f832a4aa21b77c
|
||||
|
||||
@@ -28,6 +28,12 @@ class SessionStore extends Service {
|
||||
|
||||
An empty prefix is forkable; any non-empty boundary must be a safe existing sequence outside an open turn. Typed errors distinguish missing sources, stale objects, duplicate child ids, invalid boundaries, and prefixes ending during execution. Broader log validation and crash repair remain with their existing owners.
|
||||
|
||||
### Host and browser adaptation
|
||||
|
||||
The Host `session.fork` RPC accepts `atSeq` as an anchor within the desired turn rather than as the store's inclusive safe boundary. It selects the first `turn/end` at or after that anchor; an omitted or past-end anchor selects the last completed turn. An anchor already in the log but not followed by a matching `turn/end` returns `fork-unavailable` and never falls back to an earlier turn, so a message action cannot silently omit the clicked message.
|
||||
|
||||
The Host creates the child through the agent registry with the selected seed and lineage, and pre-publication setup installs the latest logged provider, model, and reasoning target before the child can run. It then attaches the child to the source Workspace. An attachment failure returns `workspace-attach-failed` with the already-published child id; the client reconciles that child into its summary list before surfacing the error. The Session-row action uses the last completed turn, while a message action supplies its event seq; both open the child after success, and lineage expansion makes it visible beneath the source.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Separate `ctx.sessionFork` service.** This was the first implementation, but review showed it overfit the capability-seam pattern. The code had no swappable backend, no extra event surface, no independent ownership lifecycle, and no durable behavior beyond `ctx.sessions.create({ seed, meta })`. Keeping a separate package would make callers discover and install a second service just to perform policy around a session-store primitive.
|
||||
@@ -40,4 +46,4 @@ An empty prefix is forkable; any non-empty boundary must be a safe existing sequ
|
||||
|
||||
The public surface stays small and discoverable: live session branching is part of `ctx.sessions`, next to `create({ seed })`, rather than a standalone service or a two-step helper pair. Persistence continues to work through existing `session/created` and `session/flush` behavior: a forked child starts life with seeded events, so existing backends persist that seed once and preserve `parentSession` / `seedLength` in the header.
|
||||
|
||||
The v1 scope still excludes ACP `session/fork`, unloaded persisted-session forking, model-facing tools, and subagent refactors. If a future ACP method is added, it should advertise the capability only after it has protocol and snapshot coverage; this Agent Note adds no ACP wire behavior, so no ACP snapshot is required. Fork-child replay remains covered by the existing [seed-boundary testing Agent Note](../testing/2026-06-22-fork-child-replay-seed-boundary.md), while this API gets focused `dsh-session` unit tests plus JSONL persistence coverage.
|
||||
The v1 scope still excludes ACP `session/fork`, unloaded persisted-session forking, model-facing tools, and subagent refactors. If a future ACP method is added, it should advertise the capability only after it has protocol and snapshot coverage; this Agent Note adds no ACP wire behavior, so no ACP snapshot is required. Fork-child replay remains covered by the existing [seed-boundary testing Agent Note](../testing/2026-06-22-fork-child-replay-seed-boundary.md); focused store, Host, carrier, and client tests pin the boundary and reconciliation contracts, while the real Chromium scenario pins the assembled message action and lineage tree.
|
||||
|
||||
@@ -28,6 +28,12 @@ class SessionStore extends Service {
|
||||
|
||||
空前缀可以被 fork；任何非空边界都必须是位于开放轮次之外且安全、已存在的序号。类型化的错误区分源缺失、对象陈旧、子 id 重复、边界无效和前缀结束于执行过程中等情况。更广泛的日志校验与崩溃恢复仍由其现有的负责方处理。
|
||||
|
||||
### Host 与浏览器适配
|
||||
|
||||
Host 的 `session.fork` RPC 接受 `atSeq`，并将其视为所需轮次内的锚点，而非 store 中包含该序号的安全边界。它选择该锚点处或其后的首个 `turn/end`；锚点省略或超过末尾时，选择最后一个已完成轮次。若锚点已在日志中，但从该锚点起找不到匹配的 `turn/end`，则返回 `fork-unavailable`，绝不回退到更早的轮次，因此消息操作不会静默遗漏所点击的消息。
|
||||
|
||||
Host 通过 agent（智能体）注册表，以选定的种子和谱系创建子会话；发布前 setup 会先安装日志中最新的提供方、模型和推理（reasoning）目标，子会话才能运行。随后，Host 将子会话附加到源 Workspace。若附加失败，则返回 `workspace-attach-failed` 及已发布的子会话 id；客户端先将该子会话对账到摘要列表，再向调用方报告错误。Session 行操作使用最后一个已完成轮次，消息操作则提供其事件 seq；两者都会在成功后打开子会话，展开谱系后可在源会话下看到它。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
**独立的 `ctx.sessionFork` 服务。** 这是最初的实现，但评审表明它过度套用了 capability-seam 模式。代码没有可替换的后端、没有额外的事件面、没有独立的所有权生命周期，也没有超出 `ctx.sessions.create({ seed, meta })` 的持久化行为。保留独立包会迫使调用方为了在会话存储原语之上执行一层策略而去发现并安装第二个服务。
|
||||
@@ -40,4 +46,4 @@ class SessionStore extends Service {
|
||||
|
||||
公开接口保持精简且易于发现：活跃会话分支是 `ctx.sessions` 的一部分，紧邻 `create({ seed })`，而非一个独立服务或一对两步辅助函数。持久化继续通过现有的 `session/created` 和 `session/flush` 行为运作：fork 出的子会话以种子事件开始生命，因此现有后端只需持久化该种子一次，并在 header 中保存 `parentSession`／`seedLength`。
|
||||
|
||||
v1 范围仍然排除 ACP（Agent Client Protocol） `session/fork`、对未加载的已持久化会话的 fork、面向模型的工具，以及 subagent 重构。如果未来添加 ACP 方法，应在具备协议与快照覆盖后才广播该能力；本 Agent Note 不添加任何 ACP 协议行为，因此不需要 ACP 快照。fork 子会话的回放仍由现有的[种子边界测试 Agent Note](../testing/2026-06-22-fork-child-replay-seed-boundary.md) 覆盖，而本 API 则获得专门的 `dsh-session` 单元测试加 JSONL 持久化覆盖。
|
||||
v1 范围仍然排除 ACP（Agent Client Protocol） `session/fork`、对未加载的已持久化会话的 fork、面向模型的工具，以及 subagent 重构。如果未来添加 ACP 方法，应在具备协议与快照覆盖后才广播该能力；本 Agent Note 不添加任何 ACP 协议行为，因此不需要 ACP 快照。fork 子会话的回放仍由现有的[种子边界测试 Agent Note](../testing/2026-06-22-fork-child-replay-seed-boundary.md) 覆盖；store、Host、载体与客户端的专项测试固定边界和对账契约，真实 Chromium 场景则固定组装后的消息操作与谱系树。
|
||||
|
||||
@@ -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/2026-07-06-approval-seam.md
|
||||
2026-07-06-approval-seam.md: efb4159d736779af28edc1ae6091de4669c92f31
|
||||
2026-07-06-approval-seam.zh.md: 9a4656f30a43473fe90cde9c56d45f48943e5d10
|
||||
2026-07-06-approval-seam.md: ae143a41302b7bcd6029345fa91ca4eda837c141
|
||||
2026-07-06-approval-seam.zh.md: a66ce804167fd4de5c8dbe51d70c9b038d1ebb17
|
||||
|
||||
@@ -25,7 +25,7 @@ One `cordis.yml` entry mounts the seam. Not loading it is the fail-closed opt-ou
|
||||
# policy: never # deployment default for sessions without an override; 'ask' when omitted
|
||||
```
|
||||
|
||||
The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-demo`, as in [the acp-agent example's default tree](../../../../examples/acp-agent/README.md)) completes the loop: its [automation-only bridge](../simplification/2026-07-23-acp-automation-only-protocol.md) registers an answerer that sends `session/request_permission` to the owning client with the exact tool-call id and one-shot allow/reject options. `policy: never` is the unattended stance — every ask auto-rejects deterministically and is stated in the system prompt. `policy` is validated against the closed list at plugin load; anything else throws.
|
||||
The entry alone provides mechanism, not a channel: with no answerer composed, every ask resolves `unavailable` and the asking tool call denies — fail-closed needs no configuration. Composing the ACP app (`@deepseek-ai/dsh-acp-demo`, as in [the acp-agent example's default tree](../../../../examples/acp-agent/README.md)) completes the loop: its [automation-only bridge](../simplification/2026-07-23-acp-automation-only-protocol.md) registers an answerer that sends `session/request_permission` to the owning client with the exact tool-call id and one-shot allow/reject options. `policy: never` is the unattended stance — every ask auto-rejects deterministically, and the current value joins the runtime-context snapshot. `policy` is validated against the closed list at plugin load; anything else throws.
|
||||
|
||||
What a composed deployment observes: `allowed-once` lets exactly that call proceed; rejection, dismissal, and channel absence deny with three distinct reasons the model can tell apart; a successful in-turn request lands a durable `approval/asked`/`approval/decided` pair on the asking agent's session log; nothing about a grant persists past the call that asked. An idle request or audit append failure rejects instead of returning an unaudited decision.
|
||||
|
||||
@@ -63,7 +63,7 @@ Answerers are `approval/request` waterfall listeners. Zero listeners fall throug
|
||||
|
||||
#### The per-session policy tier
|
||||
|
||||
The seam also owns the session-scoped `'ask' | 'never'` policy described by [the sandbox Agent Note](2026-07-06-sandbox.md). Effective policy is folded from logged switches over the deployment default. `'never'` resolves to `rejected` inside `request()` before any answerer can run; `'ask'` dispatches and otherwise falls through to `unavailable`. The prompt states only deterministic `'never'`, switch narration is coalesced, and every request still records the audit pair.
|
||||
The seam also owns the session-scoped `'ask' | 'never'` policy described by [the sandbox Agent Note](2026-07-06-sandbox.md). Effective policy is folded from logged switches over the deployment default. `'never'` resolves to `rejected` inside `request()` before any answerer can run; `'ask'` dispatches and otherwise falls through to `unavailable`. Both current values join the atomic runtime-context snapshot before each model request, so a policy switch needs no separate narration; every approval request still records the audit pair.
|
||||
|
||||
#### The ACP answerer
|
||||
|
||||
@@ -83,7 +83,7 @@ The answerer routes through the bridge's exact-agent ownership check described b
|
||||
|
||||
Unit tests pin outcomes, first-wins delegation, containment, cancellation, scoped routing, audit pairing, the unbypassable `'never'` policy, tool deny reasons, and ACP ownership/outcome mapping through a real scripted bridge.
|
||||
|
||||
Snapshots record allowed and rejected sandbox escalation through `session/request_permission`, plus the `'never'` prompt and policy-switch notice. Unscripted permission prompts cancel and fail closed.
|
||||
Snapshots record allowed and rejected sandbox escalation through `session/request_permission`, plus the complete `'ask'` and `'never'` runtime-context contributions. Unscripted permission prompts cancel and fail closed.
|
||||
|
||||
## Deferred
|
||||
|
||||
@@ -124,7 +124,7 @@ Costs and accepted limits:
|
||||
- **What happens when the user dismisses the prompt, or the turn aborts mid-ask?** Dismissal maps to `cancelled` with its own deny text. An already-aborted signal settles `cancelled` without dispatching; an abort during the ask discards the late answer. When both audit appends commit, either path records one pair, never two.
|
||||
- **What if the client answers with an option the harness never offered?** Any selection other than the offered `allow_once` maps to `rejected` — an unknown optionId from a non-conforming client can never grant.
|
||||
- **How do subagents' approvals route?** An agent no answerer owns delegates through the whole waterfall and fails closed — in-process subagents are deliberately unanswerable. A `'never'` parent seeds that override into each in-process child's log ([decision](2026-07-25-subagent-policy-inheritance.md)), so the child is told up front instead of asking into the empty waterfall. `subagent-acp`'s child-side auto-answer is separate; routing a child's asks to the parent controller is deferred (§ Deferred).
|
||||
- **What does `policy: 'never'` actually change at runtime?** The service resolves every ask for that session to `rejected` before dispatching any answerer (in-service, so no registration order can bypass it); the system prompt states the policy; switches are narrated at boundaries; each successful auto-rejection records the audit pair.
|
||||
- **What does `policy: 'never'` actually change at runtime?** The service resolves every ask for that session to `rejected` before dispatching any answerer (in-service, so no registration order can bypass it); the next atomic runtime-context snapshot states the policy; each successful auto-rejection records the audit pair.
|
||||
- **What happens across a hot reload, or when an answerer unloads mid-session?** Answerers dispose with their owning fiber, so the next ask degrades to `unavailable` instead of hanging on a dead channel; remounting re-registers the answerer with no catch-up state.
|
||||
- **Where does a client get approval context?** The request carries the exact `callId` and the asker's human-readable `reason`; channel adapters may correlate richer tool-call state without duplicating arguments in the approval seam.
|
||||
|
||||
|
||||
@@ -25,7 +25,7 @@ Status: implemented
|
||||
# policy: never # deployment default for sessions without an override; 'ask' when omitted
|
||||
```
|
||||
|
||||
仅有这条条目只提供机制，不提供通道：没有组合应答者时，每次 ask 都解析为 `unavailable`，发起请求的工具调用被拒绝——失败关闭无需配置。组合 ACP 应用（`@deepseek-ai/dsh-acp-demo`，如 [acp-agent 示例的默认树](../../../../examples/acp-agent/README.md)）即可闭环：其[仅面向自动化的桥接层](../simplification/2026-07-23-acp-automation-only-protocol.md)注册一个应答者，向拥有该会话的客户端发送 `session/request_permission`，携带精确的工具调用 id 和一次性 allow/reject 选项。`policy: never` 是无人值守姿态：每次 ask 确定性地自动拒绝，并在系统提示词中声明。`policy` 在插件加载时对照封闭列表校验；非法值直接抛异常。
|
||||
仅有这条条目只提供机制，不提供通道：没有组合应答者时，每次 ask 都解析为 `unavailable`，发起请求的工具调用被拒绝——失败关闭无需配置。组合 ACP 应用（`@deepseek-ai/dsh-acp-demo`，如 [acp-agent 示例的默认树](../../../../examples/acp-agent/README.md)）即可闭环：其[仅面向自动化的桥接层](../simplification/2026-07-23-acp-automation-only-protocol.md)注册一个应答者，向拥有该会话的客户端发送 `session/request_permission`，携带精确的工具调用 id 和一次性 allow/reject 选项。`policy: never` 是无人值守姿态：每次 ask 都会被确定性地自动拒绝，当前值也会加入运行时上下文快照。`policy` 在插件加载时对照封闭列表校验；非法值直接抛异常。
|
||||
|
||||
组合部署的可观测行为：`allowed-once` 仅允许该次调用继续；拒绝、关闭和通道缺失以三种不同原因拒绝，模型可以区分；轮次内成功的请求会在发起请求的 agent 的会话日志上落一对持久的 `approval/asked`/`approval/decided` 事件；授权不会在发起请求的调用结束后继续存在。空闲时的请求或审计追加失败会拒绝，而不会返回未经审计的决策。
|
||||
|
||||
@@ -63,7 +63,7 @@ tool/result "escalated" — this one call ran under the wider mode; the gra
|
||||
|
||||
#### 每会话策略层
|
||||
|
||||
seam 还拥有[沙箱 Agent Note](2026-07-06-sandbox.md) 所描述的会话级 `'ask' | 'never'` 策略。生效策略由日志中记录的切换在部署默认值之上折叠而成。`'never'` 会在任何应答者运行之前，于 `request()` 内部解析为 `rejected`；`'ask'` 则派发请求，否则一路委派至 `unavailable`。提示词仅声明确定性的 `'never'`，切换叙述会被合并，每个请求仍记录审计对。
|
||||
seam 还拥有[沙箱 Agent Note](2026-07-06-sandbox.md) 所描述的会话级 `'ask' | 'never'` 策略。生效策略由日志中记录的切换在部署默认值之上折叠而成。`'never'` 会在任何应答者运行之前，于 `request()` 内部解析为 `rejected`；`'ask'` 则派发请求，否则一路委派至 `unavailable`。两个当前值都会在每次模型请求前加入原子化的运行时上下文快照，因此策略切换无需单独叙述；每次批准请求仍会记录审计对。
|
||||
|
||||
#### ACP 应答者
|
||||
|
||||
@@ -83,7 +83,7 @@ ACP 桥只应答其会话映射所拥有的精确 agent 对象。它携带既有
|
||||
|
||||
单元测试固定结果、先到先得的委派、错误容纳、取消、作用域路由、审计配对、不可绕过的 `'never'` 策略、工具拒绝原因，以及通过真实脚本化桥实现的 ACP 归属/结果映射。
|
||||
|
||||
快照记录通过 `session/request_permission` 批准和拒绝沙箱升级，以及 `'never'` 提示词与策略切换通知。没有脚本化应答的权限提示会取消并失败关闭。
|
||||
快照记录通过 `session/request_permission` 批准和拒绝沙箱升级，以及完整的 `'ask'` 与 `'never'` 运行时上下文贡献。没有脚本化应答的权限提示会取消并失败关闭。
|
||||
|
||||
## 延后
|
||||
|
||||
@@ -124,7 +124,7 @@ ACP 桥只应答其会话映射所拥有的精确 agent 对象。它携带既有
|
||||
- **用户关闭提示或轮次在 ask 进行中中止时会发生什么？** 关闭映射为 `cancelled` 并携带自己的拒绝文本。已中止的 signal 直接结算为 `cancelled` 而不派发；ask 进行中的中止丢弃迟到的应答。当两个审计追加都提交时，任一路径都记录恰好一对事件，绝不会两对。
|
||||
- **如果客户端以 harness 从未提供的选项应答呢？** 除已提供的 `allow_once` 之外的任何选项都映射为 `rejected`——来自不合规客户端的未知 optionId 永远不能授权。
|
||||
- **subagent 的审批如何路由？** 没有应答者拥有的 agent 穿过整个 waterfall 委派并失败关闭——进程内 subagent 被刻意设计为不可应答。`'never'` 父级会把该覆盖项预置到每个进程内子 agent 的日志中（[决策](2026-07-25-subagent-policy-inheritance.md)），因此子 agent 一开始就会得知，而不是向空的 waterfall 发出 ask。`subagent-acp` 的子侧自动应答是独立的；将子 agent 的 ask 路由到父控制器已延后（§ 延后）。
|
||||
- **`policy: 'never'` 在运行时实际改变了什么？** 服务在派发任何应答者之前，将该会话的每次 ask 解析为 `rejected`（在服务内部，因此没有注册顺序能绕过它）；系统提示词声明该策略；切换在边界处被叙述；每次成功的自动拒绝都会记录审计对。
|
||||
- **`policy: 'never'` 在运行时实际改变了什么？** 服务在派发任何应答者之前，将该会话的每次 ask 解析为 `rejected`（在服务内部，因此没有注册顺序能绕过它）；下一份原子化的运行时上下文快照会声明该策略；每次成功的自动拒绝都会记录审计对。
|
||||
- **热重载或应答者在会话中途卸载时会发生什么？** 应答者随其拥有的 fiber 一起 dispose，因此下一次 ask 降级为 `unavailable` 而非挂在死通道上；重新挂载会重新注册应答者，无需追赶状态。
|
||||
- **客户端从哪里获得审批上下文？** 请求携带精确的 `callId` 和发起方的人类可读 `reason`；通道适配器可自行关联更丰富的工具调用状态，而无需在审批 seam 中重复携带参数。
|
||||
|
||||
|
||||
@@ -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/2026-07-06-sandbox.md
|
||||
2026-07-06-sandbox.md: 42b78ad8341dd52c4dd146a2207a5ae909d28f1e
|
||||
2026-07-06-sandbox.zh.md: dfa3349e4d74d6f2c4944414c25fe3726d4a9b5a
|
||||
2026-07-06-sandbox.md: 4355ab57374f77f1733fff39e2fb4ccadcedaf6b
|
||||
2026-07-06-sandbox.zh.md: 02c5337555b7466c2bac7fc4774cdd2c945178ae
|
||||
|
||||
@@ -40,7 +40,7 @@ The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook comm
|
||||
|
||||
Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at plugin load, and a host with no usable backend throws the structured `SANDBOX_UNAVAILABLE` — at `confine()` before the command ever spawns — rather than degrading to unconfined execution. `runnerCommand` on `dsh-sandbox-local` is the operator's explicit assertion of a bwrap-compatible runner (chain and probes skipped); it doubles as the deterministic fake-runner seam for keyless tests.
|
||||
|
||||
Denied file effects return a `[sandbox: file access denied under <mode> mode]` marker and instructions not to work around the denial. A confining executor adds paired `sandbox_permissions` and `justification` fields for one approved retry that must be strictly wider than the session's effective mode. A grant widens only that retry; rejection executes nothing, returns `the user rejected escalating this command to "<mode>"`, and permits no re-ask. The prompt does not announce sandbox mode, avoiding preemptive refusal. When `dsh-permission` is composed with a UI adapter, one preset selects both knob values; unmatched values fold to `custom`. The [ACP automation composition](../../../../examples/acp-agent/README.md) does not mount that UI service and selects its deployment mode explicitly.
|
||||
Denied file effects return a `[sandbox: file access denied under <mode> mode]` marker and instructions not to work around the denial. A confining executor adds paired `sandbox_permissions` and `justification` fields for one approved retry that must be strictly wider than the session's effective mode. A grant widens only that retry; rejection executes nothing, returns `the user rejected escalating this command to "<mode>"`, and permits no re-ask. The owner-derived runtime context states the current file policy without replacing those enforcement boundaries. When `dsh-permission` is composed with a UI adapter, one preset selects both knob values; unmatched values fold to `custom`. The [ACP automation composition](../../../../examples/acp-agent/README.md) does not mount that UI service and selects its deployment mode explicitly.
|
||||
|
||||
### Design detail
|
||||
|
||||
@@ -72,7 +72,7 @@ Backend profiles share the mode contract but differ in necessary host grants. La
|
||||
|
||||
`dsh-bash-sandbox` extends `LocalBashExecutor` and hands `ctx.sandbox` the exact `['bash', '-c', command]` argv it is about to spawn. A denial is an orthogonal result fact, conservatively classified from the active runner's stderr dialect. A runner failure outranks denial: foreground execution throws `SANDBOX_UNAVAILABLE`; a settled `BashProcess` stamps `sandbox.runnerFailed`, and the bash producer renders it through generic `task_output`.
|
||||
|
||||
The model's view is result facts only: the static tool description explains the denial marker (`[sandbox: file access denied under <mode> mode]`), encourages attempting commands that may be denied, and forbids retrying around a denial; when the escalation fields are advertised, a denied result additionally carries the escalation hint itself, so the sanctioned same-turn retry is prompted at the decision point rather than depending on the model recalling the description (§ Escalation). No prompt section states the sandbox mode (§ Per-session modes).
|
||||
The model sees the current effective file policy in the owner-derived `sandbox:policy` runtime context, while the static tool description explains the denial marker (`[sandbox: file access denied under <mode> mode]`), encourages attempting commands that may be denied, and forbids retrying around a denial; when the escalation fields are advertised, a denied result additionally carries the escalation hint itself, so the sanctioned same-turn retry is prompted at the decision point rather than depending on the model recalling the description (§ Escalation). [The current-policy decision](2026-07-30-current-sandbox-policy-context.md) owns the context's rationale and boundaries.
|
||||
|
||||
#### Escalation: one approved wider retry after a denial
|
||||
|
||||
@@ -105,7 +105,7 @@ interface SessionEventMap {
|
||||
|
||||
Each owner exports the same three-piece kit: the event declaration, a pure fold (`effectiveSandboxMode(events)` / `effectiveApprovalPolicy(events)` — a `findLast`, typed to the domain's closed union), and THE write path (`setSandboxMode(session, mode)` / `setApprovalPolicy(session, policy)` — a switch IS its event; nothing mutates state out of band). No shared owner service, no generic facts map, no registry: a third knob copies the ~40-line pattern into its own package. Execution follows the fold on both sides — the bash tool's per-call stamp reads it as the middle rung of the § Escalation precedence chain, and the approval seam's `'never'` gate is [the approval Agent Note](2026-07-06-approval-seam.md)'s side of the same pattern.
|
||||
|
||||
Sandbox mode is not narrated in the prompt; denial results report the mode when it matters, avoiding preemptive refusal based on a standing label. Approval policy is different: only `'never'` is stated because automatic rejection otherwise looks like a user decision. Policy-change notices are coalesced and delivered by the next pre-step, with log-derived fallback after restart. The notice source is inferred from event position: a knob event after the last request header is user-driven; unlogged drift is operator or config driven.
|
||||
Sandbox and approval policy are rendered as ordered contributions to one runtime-context snapshot before every request. The loop records the complete snapshot as a sourced `user/message`; both `'ask'` and `'never'` are explicit, so neither owner needs switch narration or last-told state.
|
||||
|
||||
**The optional UI surface** is `PermissionService`: a deployment-defined preset table whose entries bundle one sandbox mode with one approval policy. The shipped `workspace-write` and `danger-full-access` presets write through to both domain setters; a knob combination outside the table is reported as `custom`. UI adapters may expose that table as a selector. The automation-only ACP transport advertises no configuration selector and mounts no permission-preset service.
|
||||
|
||||
@@ -117,10 +117,10 @@ fs/web/todo execute in-process, so their sandbox semantics are policy at their s
|
||||
|
||||
### Testing
|
||||
|
||||
- **Unit:** pin platform selection and profiles, fail-closed runner classification, per-call mode/root resolution, per-process facts, escalation validation and outcomes, permission preset folding and write-through, and narrator coalescing.
|
||||
- **Unit:** pin platform selection and profiles, fail-closed runner classification, per-call mode/root resolution, per-process facts, escalation validation and outcomes, permission preset folding and write-through, and runtime-context ordering and materialization.
|
||||
- **Keyless real-runner:** exercise bwrap, Landlock, and Seatbelt against real filesystem effects at provider and bash-consumer layers; one real Cordis context concurrently drives two project sessions through shipped bash and fs tools, proving own-root success and sibling-root denial. Packed-install coverage proves the registry launcher remains executable. CI rejects a silent all-skip.
|
||||
- **With-key:** start the real ACP composition in read-only mode, let a model-driven bash write hit the runner's denial marker, then drive the bridge answerer and disk effect through granted and rejected workspace-write retries; unavailable credentials or runners self-skip.
|
||||
- **Snapshot:** pin prompt deltas and notices plus both scripted approval branches. A real ACP example scenario places its session under the user home while the deployment fallback points at `/tmp`, then pins a successful deployment-selected workspace-write mutation; this distinguishes session-root resolution from the process fallback without depending on runner-specific denial text. Other snapshots start unconfined so unrelated fixtures remain platform-independent.
|
||||
- **Snapshot:** pin the atomic current-policy context and both scripted approval branches. A real ACP example scenario places its session under the user home while the deployment fallback points at `/tmp`, then pins both the workspace-write runtime-context message and a successful deployment-selected mutation; this distinguishes session-root resolution from the process fallback without depending on runner-specific denial text. Other snapshots start unconfined so unrelated fixtures remain platform-independent.
|
||||
|
||||
## Deferred phases
|
||||
|
||||
@@ -149,9 +149,9 @@ Each phase gets its full design when picked up, validated against the code at th
|
||||
- **Per-session dynamic tool schemas** — rejected: schemas are registry-global by design (one assembly vocabulary, the pinned-header snapshot contract), and re-registering per session would buy only what the execution-time strict-wider check already guarantees, at the cost of a per-session schema surface and header churn on every switch.
|
||||
- **Hard-match the retry to a prior denial** — rejected: command-string identity is fragile (quoting, `workdir`, env prefixes, a pipeline retried as its failing stage) — false-rejects honest retries or is trivially satisfied; the real boundary is the human seeing command + justification. Revisit only if `allow_always` grant storage ever needs machine-checkable scopes.
|
||||
- **A generic `env/state` facts map with an owner service** — rejected: approval and sandbox compose independently, so neither's state may drag in a third package; single-key folds are one `findLast` each, dissolving the owner service; no invariant spans the knobs, so atomic multi-key patches bought nothing.
|
||||
- **Narrate via `agent/user-message` + a bus event** — rejected: it presupposes a turn-entry seam that does not exist (the real seam is `agent/prompt-submit`), and pre-step's position serves both the coalesced turn-entry notice and the mid-turn immediacy bound with one listener.
|
||||
- **A standing prompt statement of the sandbox mode (+ a switch narrator)** — shipped first, then removed on live evidence: with `Bash commands run under the "read-only" file sandbox.` in every request, the model refused to ATTEMPT denied-then-escalatable work (five of twelve turns in the first manual session ended with zero tool calls), turning the sandbox into a soft lockout. The denial marker names the mode at the moment it matters and the escalation fields carry the recovery; the approval knob keeps its statement because an auto-rejection is behaviorally indistinguishable from a human "no".
|
||||
- **Track "last told" with its own bookkeeping events** — rejected: the `request/header` fold already records the exact prompt the model saw; parsing the closed candidate sentences back replaces a second bookkeeping stream — events are needed only where they ARE the store.
|
||||
- **Narrate each switch through `agent.inject()` plus a bus event** — rejected: independent notices expose owner ordering and intermediate combinations, while one assembly pass can materialize the complete current state atomically at the request boundary.
|
||||
- **State sandbox mode in the stable system prompt** — shipped first, then removed on live evidence: with `Bash commands run under the "read-only" file sandbox.` in every request, the model refused to ATTEMPT denied-then-escalatable work (five of twelve turns in the first manual session ended with zero tool calls), turning the sandbox into a soft lockout. The denial marker names the mode at the moment it matters and the escalation fields carry the recovery. The absence decision is superseded by [the current-policy decision](2026-07-30-current-sandbox-policy-context.md); this measurement and causal observation remain the evidence that any replacement must counter-test.
|
||||
- **Track "last told" with its own bookkeeping events** — rejected: the latest sourced runtime-context `user/message` records the exact full snapshot the model saw. Materializing that snapshot from current owner contributions replaces a second bookkeeping stream — events are needed only where they ARE the store.
|
||||
- **Independent sandbox and approval selectors** — rejected: one deployment-defined permission preset keeps the two policy knobs coherent for UI clients that expose runtime switching.
|
||||
|
||||
## Consequences
|
||||
@@ -160,12 +160,12 @@ What shipped pins — the tiers in Testing hold each:
|
||||
|
||||
- A denied command retried with `sandbox_permissions` + `justification` prompts the user through the composed answerer chain; a grant runs THAT call under the wider mode (result facts say so) while every other call keeps its own effective mode; every non-grant outcome produces its distinct error text and executes nothing.
|
||||
- The escalation fields exist exactly when the mounted executor confines; a request that is not strictly wider than the call's effective mode fails closed with its own text and prompts no one; a deployment with no ApprovalService fails escalating calls closed and leaves plain calls untouched.
|
||||
- The system prompt never states the sandbox mode (an approval `'never'` policy is the one stated knob), and the whole exchange — headers, knob events, notices, approvals, results — reconstructs from the session log alone, with no event types beyond the two knob events.
|
||||
- One preset selection records only changed knob values, while a no-op selection records nothing; an approval-policy switch is narrated in at most one coalesced notice, and a committed sandbox switch is honored by the next call's stamp.
|
||||
- A resumed session's overrides apply with no catch-up state; a default changed while the process was down is narrated before the session's first new request, attributed to the operator.
|
||||
- One sourced runtime-context message states the complete current sandbox and approval policies atomically; the whole exchange — context snapshots, headers, knob events, approval notices, approvals, and results — reconstructs from the session log alone, with no policy bookkeeping events beyond the two knob events.
|
||||
- One preset selection records only changed knob values, while a no-op selection records nothing; the next request snapshots both current values atomically, and a committed sandbox switch is honored by the next call's stamp.
|
||||
- A resumed session's overrides enter its first new runtime-context snapshot with no catch-up state; a composition default changed while the process was down likewise appears in that snapshot.
|
||||
- Two concurrent sessions never see each other's state or notices.
|
||||
- Two concurrent project sessions in one Cordis context resolve independent workspace roots; bash and fs writes succeed inside the calling session's cwd and fail against its neighbor's cwd.
|
||||
- `agent-loop` is untouched — everything rides `systemPrompt.section`, `SessionEventMap` merging, `agent.inject()`, `agent/step`, `agent/prompt-submit`, and capability-owned policy resolution.
|
||||
- Policy ownership stays in plugins through `systemPrompt.context`, `SessionEventMap` merging, and capability-owned resolution; the generic loop change materializes every owner's ordered context as one sourced message.
|
||||
|
||||
Costs and accepted limits:
|
||||
|
||||
@@ -178,9 +178,8 @@ Costs and accepted limits:
|
||||
- **The model may over-ask.** Escalating without denial grounding, or picking `danger-full-access` where `workspace-write` suffices: the description steers and the enum forces the ladder, but the human prompt is the actual gate; the `approval/asked` reasons make over-asking auditable, and a `prepend` policy answerer can auto-reject patterns a deployment never wants.
|
||||
- **The advertised target set is static while the effective mode is per-session** (schemas are registry-global) — a session already at the widest mode is still offered the fields. Harmless by construction: the strict-wider check at execution, not the enum, is the safety boundary — a non-widening request fails with its own text and never prompts anyone.
|
||||
- **A granted escalation is not a working sandbox.** An unavailable backend still fails closed even for a granted escalation to a confining mode — at `confine()` when the platform has no chain or every probe fails, at execution when an unprobed sole runner refuses (classified as a sandbox failure, not a command failure) — while a granted `danger-full-access` run never touches the provider at all: there the grant, not the probe, is the authority.
|
||||
- **The approval narrator's restart baseline parses prompt prose.** The closed candidate sentence is owned by the writing module itself, so a wording change is a coordinated writer+parser edit in one file; a session whose headers predate the section silently adopts the current policy without a notice.
|
||||
- **The approval section is still a dynamic prompt surface** (a `'never'` switch breaks provider prompt-prefix caching for that session). Accepted: policy switches are rare, and a model acting on a stale `'never'` is worse. The sandbox knob no longer touches the prompt at all.
|
||||
- **The model may hold a stale belief about the sandbox mode** (nothing announces a switch). Accepted deliberately: the next attempt's marker or success corrects it, and the observed failure mode of announcing — preemptive refusal — is worse than one wasted retry.
|
||||
- **Runtime-context history is append-only.** A policy switch appends a complete superseding snapshot after retained history, preserving the stable system-and-conversation prefix; unchanged state adds no message.
|
||||
- **Older policy snapshots remain in history.** Each full snapshot explicitly supersedes earlier runtime-context snapshots, so replay and compaction need only retain the latest materialized message.
|
||||
|
||||
## FAQ
|
||||
|
||||
@@ -191,8 +190,8 @@ Costs and accepted limits:
|
||||
- **Does the sandbox restrict network or process visibility?** No — `SandboxMode` claims FILE effects only; the bwrap profile deliberately does not unshare pid, and no backend claims network. Whether network restriction becomes its own knob is left open in § The seam.
|
||||
- **Which tools actually run confined?** OS subprocesses through `ctx.bash` — the bash tools, and hook commands transitively — plus the filesystem tools (`read`/`write`/`edit`) through the sandboxed `ctx.fs` provider (the [cross-family fs sandbox RFC](2026-07-14-cross-family-fs-sandbox.md)): bash confines via the OS runner, fs via an in-process path fence, both keying off the same `ctx.sandboxPolicy` mode. web/todo stay in-process and unfenced (web's only effect is network, outside the file-effect mode vocabulary).
|
||||
- **Does a granted escalation persist?** No. The grant is consumed by the exact foreground or background call that asked; every neighboring call keeps its own effective mode. A later background denial surfaces through `task_output` and may ground a new exact-command retry.
|
||||
- **When does a runtime mode switch take effect?** Once its session event commits, the very next capability resolution folds and stamps the new mode. The model is not told a standing mode; its next command simply behaves under the new policy, and any denial names that policy at the point of use.
|
||||
- **What survives a restart — and what if the operator changed the config default while the process was down?** Overrides replay from the session log (`effective = fold ?? config`), so a resumed session keeps its modes with zero catch-up machinery; a default that drifted offline changes behavior the same way a switch does (the approval policy, being stated, is additionally narrated with operator/config attribution).
|
||||
- **When does a runtime mode switch take effect?** Once its session event commits, the next runtime-context snapshot and the next capability resolution fold the new mode. The sourced context message records what the model was told, and any later denial names the same policy at the point of use.
|
||||
- **What survives a restart — and what if the operator changed the config default while the process was down?** Overrides replay from the session log (`effective = fold ?? config`), so a resumed session keeps its modes with zero catch-up machinery; a default that drifted offline enters the next full runtime-context snapshot.
|
||||
- **What does `enforcement: 'partial'` on a result mean?** The selected backend enforces the subset its kernel ABI governs — e.g. Landlock before ABI v3 does not govern path truncate — and says so structurally instead of refusing the host; the probe's report line distinguishes the cases. The bwrap and Seatbelt profiles govern every promised file effect by construction, so they always report `full`.
|
||||
|
||||
## Prior art
|
||||
|
||||
@@ -40,7 +40,7 @@ harness 是一个 SDK，因此约束必须是开发者可组合的能力：是
|
||||
|
||||
配置错误大声失败：`mode` 不在封闭词汇中时在插件加载时被拒绝；主机上没有可用后端时在 `confine()` 阶段（命令 spawn 之前）抛出结构化的 `SANDBOX_UNAVAILABLE`，而非降级为无约束执行。`dsh-sandbox-local` 上的 `runnerCommand` 是运维人员对一个 bwrap 兼容 runner 的显式断言（跳过链和探测）；它同时充当 keyless 测试的确定性 fake-runner seam。
|
||||
|
||||
被拒绝的文件操作返回 `[sandbox: file access denied under <mode> mode]` 标记，并附带不要绕过拒绝的指令。约束执行器添加配对的 `sandbox_permissions` 和 `justification` 字段，用于一次经批准的重试，该重试必须严格宽于会话的有效模式。授权仅放宽该次重试；拒绝则不执行任何内容，返回 `the user rejected escalating this command to "<mode>"`，且不允许再次请求。提示词不声明沙箱模式，以避免基于常驻标签的预防性拒绝。当 `dsh-permission` 与某个 UI 适配器一起组合时，一个 preset 同时选定两个旋钮值；不匹配的组合折叠为 `custom`。[ACP 自动化组合](../../../../examples/acp-agent/README.md)不挂载该 UI 服务，而是显式选定其部署模式。
|
||||
被拒绝的文件操作返回 `[sandbox: file access denied under <mode> mode]` 标记，并附带不要绕过拒绝的指令。约束执行器添加配对的 `sandbox_permissions` 和 `justification` 字段，用于一次经批准的重试，该重试必须严格宽于会话的有效模式。授权仅放宽该次重试；拒绝则不执行任何内容，返回 `the user rejected escalating this command to "<mode>"`，且不允许再次请求。由归属方派生的运行时上下文会说明当前文件策略，但不会取代这些强制执行边界。当 `dsh-permission` 与某个 UI 适配器一起组合时，一个 preset 同时选定两个旋钮值；不匹配的组合折叠为 `custom`。[ACP 自动化组合](../../../../examples/acp-agent/README.md)不挂载该 UI 服务，而是显式选定其部署模式。
|
||||
|
||||
### 设计细节
|
||||
|
||||
@@ -72,7 +72,7 @@ Landlock launcher 源码和包工作区位于 `native/landlock-run`，与 harnes
|
||||
|
||||
`dsh-bash-sandbox` 扩展 `LocalBashExecutor`，并把即将 spawn 的确切 `['bash', '-c', command]` argv 交给 `ctx.sandbox`。拒绝是与其他结果正交的事实，依据当前 runner 的 stderr 方言保守分类。Runner 失败优先于拒绝：前台执行抛出 `SANDBOX_UNAVAILABLE`；结算后的 `BashProcess` 会盖章 `sandbox.runnerFailed`，bash 生产者再通过通用 `task_output` 渲染它。
|
||||
|
||||
模型看到的仅是结果事实：静态工具描述解释拒绝标记（`[sandbox: file access denied under <mode> mode]`），鼓励尝试可能被拒绝的命令，并禁止绕过拒绝重试；当升级字段被公布时，被拒绝的结果还额外携带升级提示本身，使被认可的同轮次重试在决策点被提示，而非依赖模型回忆描述（§ 升级机制）。没有提示词段落声明沙箱模式（§ 按会话模式）。
|
||||
模型会在归属方派生的 `sandbox:policy` 运行时上下文中看到当前有效的文件策略；静态工具描述则解释拒绝标记（`[sandbox: file access denied under <mode> mode]`），鼓励尝试可能被拒绝的命令，并禁止绕过拒绝重试。当升级字段被公布时，被拒绝的结果还会携带升级提示本身，使被认可的同轮次重试在决策点获得提示，而非依赖模型回忆描述（§ 升级机制）。[当前策略决策](2026-07-30-current-sandbox-policy-context.md)负责该上下文的理由与边界。
|
||||
|
||||
#### 升级机制：拒绝后一次经批准的更宽重试
|
||||
|
||||
@@ -105,7 +105,7 @@ interface SessionEventMap {
|
||||
|
||||
每个拥有者导出相同的三件套：事件声明、纯 fold（`effectiveSandboxMode(events)` / `effectiveApprovalPolicy(events)`——一个 `findLast`，类型化到领域的封闭联合），以及唯一的写入路径（`setSandboxMode(session, mode)` / `setApprovalPolicy(session, policy)`——切换即其事件；没有任何东西在带外修改状态）。无共享拥有者服务、无通用 facts map、无注册表：第三个旋钮只需将约 40 行模式复制到自己的包中。执行在两侧都遵循 fold——bash 工具的按调用盖章将其作为 § 升级机制优先级链的中间层读取，approval seam 的 `'never'` 门控是[批准 Agent Note](2026-07-06-approval-seam.md) 同一模式的另一侧。
|
||||
|
||||
沙箱模式不在提示词中叙述；拒绝结果在需要时报告模式，避免基于常驻标签的预防性拒绝。批准策略不同：只有 `'never'` 被声明，因为自动拒绝在行为上与用户的「不」无法区分。策略变更通知被合并，由下一个步骤前检查点递送，重启后有基于日志的回退。通知来源从事件位置推断：最后一个 request header 之后的旋钮事件是用户驱动的；未记录的漂移是运维人员或配置驱动的。
|
||||
沙箱策略与批准策略会在每次请求前渲染为同一份运行时上下文快照中的有序贡献。循环会将完整快照记录为一条带来源的 `user/message`；`'ask'` 与 `'never'` 都会明确写入，因此两个归属方都无需切换叙述或「上次告知」状态。
|
||||
|
||||
**可选的 UI 界面**是 `PermissionService`：一张部署定义的 preset 表，每个条目捆绑一个沙箱模式与一个批准策略。随附的 `workspace-write` 和 `danger-full-access` preset 写入两个领域 setter；preset 表之外的旋钮组合报告为 `custom`。UI 适配器可以把该表暴露为选择器。仅面向自动化的 ACP 传输层不公布任何配置选择器，也不挂载权限 preset 服务。
|
||||
|
||||
@@ -117,10 +117,10 @@ fs/web/todo 在进程内执行，因此它们的沙箱语义是各自 seam 层
|
||||
|
||||
### 测试
|
||||
|
||||
- **单元测试：** 固定平台选择和 profile、失败关闭的 runner 分类、按调用的模式/根目录解析、按进程事实、升级验证和结果、权限 preset fold 和写入透传、以及叙述器合并。
|
||||
- **单元测试：** 固定平台选择和 profile、失败关闭的 runner 分类、按调用的模式/根目录解析、按进程事实、升级验证和结果、权限 preset fold 和写入透传、以及运行时上下文排序与具体化。
|
||||
- **Keyless 真实 runner：** 在提供方和 bash 消费方层面对 bwrap、Landlock 和 Seatbelt 执行真实文件系统效果测试；一个真实 Cordis 上下文通过已交付的 bash 和 fs 工具并发驱动两个项目会话，证明在自身根目录写入成功、在兄弟根目录写入被拒绝。Packed-install 覆盖率证明注册表 launcher 保持可执行。CI 拒绝静默全跳过。
|
||||
- **With-key：** 以只读模式启动真实 ACP 组合，让模型驱动的 bash 写入命中 runner 的拒绝标记，再通过已授权与被拒绝的 workspace-write 重试驱动 bridge 应答器和磁盘效果；不可用的凭证或 runner 自动跳过。
|
||||
- **快照：** 固定提示词 delta 和通知，以及两个脚本化的 approval 分支。一个真实 ACP 示例场景把会话放在用户主目录下，同时让部署后备根目录指向 `/tmp`，然后固定一次成功的、由部署选定的 workspace-write 变更；这能区分会话根目录解析与进程后备值，而不依赖 runner 特定的拒绝文本。其他快照以无约束启动，使无关 fixture（测试前置数据）保持平台无关。
|
||||
- **快照：** 固定原子化的当前策略上下文和两个脚本化的 approval 分支。一个真实 ACP 示例场景把会话放在用户主目录下，同时让部署后备根目录指向 `/tmp`，然后固定 workspace-write 运行时上下文消息与一次成功的、由部署选定的变更；这能区分会话根目录解析与进程后备值，而不依赖 runner 特定的拒绝文本。其他快照以无约束启动，使无关 fixture（测试前置数据）保持平台无关。
|
||||
|
||||
## 延迟阶段
|
||||
|
||||
@@ -149,9 +149,9 @@ fs/web/todo 在进程内执行，因此它们的沙箱语义是各自 seam 层
|
||||
- **按会话动态工具 schema**：否决。schema 设计上是注册表全局的（一套 assembly 词汇、固定 header 快照契约），按会话重新注册只能买到执行时严格放宽检查已保证的东西，代价是按会话的 schema 表面和每次切换的 header 变动。
|
||||
- **将重试硬匹配到先前的拒绝**：否决。命令字符串同一性脆弱（引号、`workdir`、env 前缀、作为失败阶段重试的管道）——要么误拒诚实的重试，要么被轻易满足；真正的边界是人看到命令 + 理由。仅在 `allow_always` 授权存储需要机器可检查的范围时才重新考虑。
|
||||
- **通用 `env/state` facts map 加拥有者服务**：否决。approval 和沙箱独立组合，因此任何一方的状态都不应拖入第三个包；单键 fold 各自是一个 `findLast`，拥有者服务自然消解；没有跨旋钮的不变式，因此原子多键补丁无收益。
|
||||
- **通过 `agent/user-message` + 总线事件叙述**：否决。它预设了一个不存在的轮次入口 seam（真正的 seam 是 `agent/prompt-submit`），而步骤前检查点的位置使一个监听器能够同时服务合并的轮次入口通知和轮中即时性约束。
|
||||
- **提示词中常驻声明沙箱模式（+ 切换叙述器）**：先交付后移除，基于实际证据：当每个请求中都有 `Bash commands run under the "read-only" file sandbox.` 时，模型拒绝尝试被拒绝后可升级的工作（首次手动会话中十二个轮次有五个以零工具调用结束），将沙箱变成了软锁定。拒绝标记在需要时命名模式，升级字段承载恢复路径；批准旋钮保留其声明，因为自动拒绝在行为上与人的「不」无法区分。
|
||||
- **用专门的簿记事件追踪「上次告知」**：否决。`request/header` fold 已记录模型看到的确切提示词；将封闭的候选句子解析回来替代了第二条簿记流——事件仅在它们本身即为存储时才需要。
|
||||
- **通过 `agent.inject()` 加总线事件逐次叙述切换**：否决。独立通知会暴露归属方顺序和中间组合，而一次组装过程可以在请求边界以原子方式具体化完整的当前状态。
|
||||
- **在稳定系统提示词中声明沙箱模式**：先行交付，随后根据线上证据移除：每次请求都带有 `Bash commands run under the "read-only" file sandbox.` 时，模型会拒绝尝试本可在被拒后升级的工作（首次人工会话的十二个轮次中有五个以零工具调用结束），使沙箱变成软锁死。拒绝标记会在相关时刻指出模式，升级字段则承载恢复路径。[当前策略决策](2026-07-30-current-sandbox-policy-context.md)取代了省略策略的决策；这项测量和因果观察仍是任何替代方案必须进行反证测试的依据。
|
||||
- **用专门的簿记事件追踪「上次告知」**：否决。最新一条带来源的运行时上下文 `user/message` 会记录模型看到的确切完整快照。根据当前归属方贡献具体化该快照，取代了第二条簿记流——事件仅在它们本身即为存储时才需要。
|
||||
- **相互独立的沙箱与批准选择器**：否决。一个部署定义的权限 preset 让两个策略旋钮对暴露运行时切换的 UI 客户端保持一致。
|
||||
|
||||
## 后果
|
||||
@@ -160,12 +160,12 @@ fs/web/todo 在进程内执行，因此它们的沙箱语义是各自 seam 层
|
||||
|
||||
- 被拒绝的命令以 `sandbox_permissions` + `justification` 重试时，通过组合的应答器链提示用户；授权使该次调用在更宽模式下运行（结果事实如此报告），而其他所有调用保持各自的有效模式；每种非授权结果产生各自不同的错误文本且不执行任何内容。
|
||||
- 升级字段恰好在已挂载的执行器约束时存在；不严格宽于调用有效模式的请求以自身文本失败关闭且不提示任何人；没有 ApprovalService 的部署对升级调用失败关闭，对普通调用不影响。
|
||||
- 系统提示词从不声明沙箱模式（批准 `'never'` 策略是唯一被声明的旋钮），且整个交互——header、旋钮事件、通知、批准、结果——仅从会话日志即可重建，除两个旋钮事件外无额外事件类型。
|
||||
- 一次 preset 选择只记录发生变化的旋钮值，而无操作的选择不记录任何内容；批准策略切换最多以一条合并通知叙述，已提交的沙箱切换由下一次调用的盖章兑现。
|
||||
- 恢复的会话的覆盖直接生效，无需追赶状态；进程停止期间变更的默认值在会话的首个新请求前被叙述，归因于运维人员。
|
||||
- 一条带来源的运行时上下文消息会以原子方式声明完整的当前沙箱策略与批准策略；整个交互——上下文快照、header、旋钮事件、批准通知、批准与结果——仅从会话日志即可重建，除两个旋钮事件外没有策略簿记事件。
|
||||
- 一次 preset 选择只记录发生变化的旋钮值，而无操作的选择不记录任何内容；下一个请求会把两个当前值共同纳入一份原子快照，已提交的沙箱切换由下一次调用的盖章兑现。
|
||||
- 恢复会话的覆盖项会进入其首个新运行时上下文快照，无需追赶状态；进程停止期间变更的组合默认值也会出现在该快照中。
|
||||
- 两个并发会话永远看不到彼此的状态或通知。
|
||||
- 同一个 Cordis 上下文中的两个并发项目会话解析各自独立的工作区根目录；bash 和 fs 写入在调用方会话的 cwd 内成功，对其相邻会话的 cwd 则失败。
|
||||
- `agent-loop` 未被触及——一切搭载 `systemPrompt.section`、`SessionEventMap` 合并、`agent.inject()`、`agent/step`、`agent/prompt-submit` 和由能力拥有的策略解析。
|
||||
- 策略归属仍通过 `systemPrompt.context`、`SessionEventMap` 合并和由能力归属方拥有的解析留在插件中；通用循环变更会将每个归属方的有序上下文具体化为一条带来源的消息。
|
||||
|
||||
代价与已接受的限制：
|
||||
|
||||
@@ -178,9 +178,8 @@ fs/web/todo 在进程内执行，因此它们的沙箱语义是各自 seam 层
|
||||
- **模型可能过度请求。** 在没有拒绝依据的情况下升级，或在 `workspace-write` 足够时选择 `danger-full-access`：描述引导且枚举强制阶梯，但人的提示词是实际门控；`approval/asked` 原因使过度请求可审计，且 `prepend` 策略应答器可以自动拒绝部署永远不想要的模式。
|
||||
- **公布的目标集是静态的，而有效模式是按会话的**（schema 是注册表全局的）——已处于最宽模式的会话仍被提供这些字段。构造上无害：执行时的严格放宽检查（而非枚举）是安全边界——非放宽请求以自身文本失败且不提示任何人。
|
||||
- **授权的升级不等于可工作的沙箱。** 不可用的后端即使对授权升级到约束模式也仍然失败关闭——在平台没有链或所有探测失败时于 `confine()` 阶段，在未探测的唯一 runner 拒绝时于执行阶段（归类为沙箱失败而非命令失败）——而授权的 `danger-full-access` 运行根本不触及提供方：此时授权（而非探测）是权威。
|
||||
- **批准叙述器的重启基线解析提示词文本。** 封闭的候选句子由写入模块本身拥有，因此措辞变更是同一文件中写入器+解析器的协调编辑；header 早于该段落的会话静默采用当前策略而不发通知。
|
||||
- **批准段落仍是动态提示词表面**（`'never'` 切换会破坏该会话的提供方提示词前缀缓存）。已接受：策略切换罕见，且模型基于过时的 `'never'` 行动更糟。沙箱旋钮不再触及提示词。
|
||||
- **模型可能持有关于沙箱模式的过时信念**（没有任何东西宣布切换）。有意接受：下一次尝试的标记或成功会纠正它，而宣布的观察到的失败模式——预防性拒绝——比一次浪费的重试更糟。
|
||||
- **运行时上下文历史仅追加。** 策略切换会在保留的历史之后追加一份用于取代先前快照的完整快照，从而保留稳定的系统与对话前缀；状态不变时不添加消息。
|
||||
- **旧策略快照仍保留在历史中。** 每份完整快照都会明确取代更早的运行时上下文快照，因此回放与压缩（compaction）只需保留最新具体化的消息。
|
||||
|
||||
## FAQ
|
||||
|
||||
@@ -191,8 +190,8 @@ fs/web/todo 在进程内执行，因此它们的沙箱语义是各自 seam 层
|
||||
- **沙箱限制网络或进程可见性吗？** 不——`SandboxMode` 仅声称文件操作；bwrap profile 刻意不 unshare pid，没有后端声称网络。网络限制是否成为自己的旋钮留在 § seam 中开放。
|
||||
- **哪些工具实际在约束下运行？** 通过 `ctx.bash` 的 OS 子进程——bash 工具及传递性的钩子命令——再加上通过沙箱化 `ctx.fs` 提供方运行的文件系统工具（`read`/`write`/`edit`，见[跨工具族 fs 沙箱 Agent Note](2026-07-14-cross-family-fs-sandbox.md)）：bash 通过 OS runner 约束，fs 通过进程内路径围栏约束，二者都以同一个 `ctx.sandboxPolicy` 模式为键。web/todo 仍在进程内且不受限制（web 的唯一效果是网络，不在文件效果模式词汇内）。
|
||||
- **授权的升级会持久化吗？** 不会。授权由发起请求的确切前台或后台调用消费；每个相邻调用保留自己的有效模式。后续的后台拒绝通过 `task_output` 呈现，并且可以作为一次新的精确命令重试的依据。
|
||||
- **运行时模式切换何时生效？** 一旦其会话事件提交，紧接着的下一次能力解析就会折叠并盖章新模式。模型不被告知常驻模式；其下一个命令直接在新策略下运行，任何拒绝都会在使用点命名该策略。
|
||||
- **重启后什么存活——如果运维人员在进程停止期间改了配置默认值呢？** 覆盖从会话日志回放（`effective = fold ?? config`），因此恢复的会话以零追赶机制保持其模式；离线漂移的默认值以与切换相同的方式改变行为（批准策略因被声明，还额外以运维人员/配置归因叙述）。
|
||||
- **运行时模式切换何时生效？** 一旦其会话事件提交，下一个运行时上下文快照与下一次能力解析都会折叠新模式。带来源的上下文消息会记录模型收到的内容，之后的任何拒绝都会在使用点命名同一策略。
|
||||
- **重启后什么存活——如果运维人员在进程停止期间改了配置默认值呢？** 覆盖从会话日志回放（`effective = fold ?? config`），因此恢复的会话以零追赶机制保持其模式；离线漂移的默认值会进入下一份完整运行时上下文快照。
|
||||
- **结果上的 `enforcement: 'partial'` 是什么意思？** 所选后端强制其内核 ABI 管控的子集——例如 ABI v3 之前的 Landlock 不管控路径 truncate——并以结构化方式如此声明而非拒绝主机；探测的报告行区分各种情况。bwrap 和 Seatbelt profile 构造上管控所有承诺的文件操作，因此始终报告 `full`。
|
||||
|
||||
## 先例
|
||||
|
||||
@@ -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
|
||||
2026-07-08-background-subagent-tasks.md: 12b34f2a28cfa311a48904cd5396ec16d9123641
|
||||
2026-07-08-background-subagent-tasks.zh.md: 58f035a14d55bc0b4e7f670111909074c3f53b2b
|
||||
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-08-background-subagent-tasks.md
|
||||
2026-07-08-background-subagent-tasks.md: 679c57c3173a32b8cfccc6611b4ba74487e7f7e3
|
||||
2026-07-08-background-subagent-tasks.zh.md: 487943ab5cfe78226cde912854099fc56a5833a6
|
||||
|
||||
@@ -23,7 +23,7 @@ For a background call, the tool validates the parent and refuses an already-abor
|
||||
The task registration maps the subagent seam as follows:
|
||||
|
||||
- `kind` is `subagent`, `label` is the model-supplied description, and `owner` is the parent agent.
|
||||
- `cancel(reason?)` aborts the task-owned controller. The same signal covers pending provider startup and the ready child.
|
||||
- `cancel(reason?)` aborts the task-owned controller. The same signal covers pending provider startup and the published run's remaining work.
|
||||
- `done` awaits provider startup, the child result, and `run.dispose()`. Completed runs return final text, aborted runs become `killed`, and other stop reasons become `failed`. Startup, result, and disposal failures become failed outcomes rather than rejected task promises.
|
||||
- `readOutput` is absent. While live, `task_output` returns status only; after settlement, it returns final output idempotently. Intermediate child activity remains in the child session.
|
||||
|
||||
@@ -57,7 +57,7 @@ Streaming child history into the parent would blur the log boundary and make pro
|
||||
|
||||
## Testing
|
||||
|
||||
Unit coverage pins stop-reason mapping, dispose-before-report behavior, startup and result failures, pre-aborted refusal, detachment from the starting call's signal, cancellation before and after provider readiness, collection through the real task tools, the no-surface preflight fence, missing-runtime failure, and per-instance schema gating. Snapshot coverage pins the model-facing schemas.
|
||||
Unit coverage pins stop-reason mapping, dispose-before-report behavior, startup and result failures, pre-aborted refusal, detachment from the starting call's signal, cancellation before and after provider publication, collection through the real task tools, the no-surface preflight fence, missing-runtime failure, and per-instance schema gating. Snapshot coverage pins the model-facing schemas.
|
||||
|
||||
## Consequences
|
||||
|
||||
|
||||
@@ -23,7 +23,7 @@ subagent 需要与其他长时间运行的工具相同的启动、收集、列
|
||||
任务注册按以下方式映射 subagent seam：
|
||||
|
||||
- `kind` 为 `subagent`，`label` 为模型提供的描述，`owner` 为父 agent（智能体）。
|
||||
- `cancel(reason?)` 中止任务自有的控制器。同一个信号同时覆盖尚未完成的提供方启动和已就绪的子级。
|
||||
- `cancel(reason?)` 中止任务自有的控制器。同一个信号同时覆盖尚未完成的提供方启动和已发布 run 的剩余工作。
|
||||
- `done` 等待提供方启动、子级结果和 `run.dispose()`。已完成的运行返回最终文本，已中止的运行变为 `killed`，其他停止原因变为 `failed`。启动、结果和资源释放失败会转换为失败结果，而不是被拒绝的任务 Promise。
|
||||
- `readOutput` 不存在。任务存活期间，`task_output` 只返回状态；结算后，它以幂等方式返回最终输出。中间的子级活动仍保留在子会话中。
|
||||
|
||||
@@ -57,7 +57,7 @@ agent 和日志可能以会话为作用域，但任务注册表和可预测 id
|
||||
|
||||
## 测试
|
||||
|
||||
单元测试覆盖固定了停止原因映射、在报告前释放资源、启动与结果失败、对预中止的拒绝、从启动调用信号分离、在提供方就绪前后取消、通过真实任务工具收集、无控制接口的预检防线、运行时缺失失败，以及每实例 schema 开关。快照覆盖固定了面向模型的 schema。
|
||||
单元测试覆盖固定了停止原因映射、在报告前释放资源、启动与结果失败、对预中止的拒绝、从启动调用信号分离、在提供方发布前后取消、通过真实任务工具收集、无控制接口的预检防线、运行时缺失失败，以及每实例 schema 开关。快照覆盖固定了面向模型的 schema。
|
||||
|
||||
## 影响
|
||||
|
||||
|
||||
@@ -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
|
||||
2026-07-19-model-facing-goal-tools.md: bc4305af80bb13ceeff1888d489dcd8a00132f94
|
||||
2026-07-19-model-facing-goal-tools.zh.md: b07f62aa526902c4b2e9c081777a76ca53783d31
|
||||
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-19-model-facing-goal-tools.md
|
||||
2026-07-19-model-facing-goal-tools.md: 18235c484194f5daf10556ebfc13bdc2d672be2e
|
||||
2026-07-19-model-facing-goal-tools.zh.md: cc23a76e5faac2c203052d834ca0a87ca5dbed2a
|
||||
|
||||
@@ -22,7 +22,7 @@ The prompt tells the model that it may infer goal intent from a direct human req
|
||||
|
||||
All three tools use exclusive execution so a model-ordered batch observes prior mutations and their new revisions. Results are compact JSON. UI presentation is a pure function of arguments and uses generic read or mutation cards; mutation cards select meaningful action values before the goal id, so accepted fillers cannot blank their input. Activation is reported only as live observation and is never written into replay state.
|
||||
|
||||
An autonomous goal round that successfully reports completion or blocking marks its tool result as concluding the physical turn, preventing an unnecessary follow-up request. Direct-human mutations do not conclude the turn: the assistant can acknowledge the change, and concurrent human steering remains available to ordinary stopping checks.
|
||||
An autonomous goal round that successfully reports completion or blocking defers one wrap-up instruction onto its tool result so the model still addresses the user before the turn ends through the ordinary no-tool-calls stop; the original conclude-at-result stop is superseded by the [goal-round wrap-up decision](../bug-fix/2026-08-02-goal-round-wrapup-message.md). Direct-human mutations receive no instruction: the assistant can acknowledge the change, and concurrent human steering remains available to ordinary stopping checks.
|
||||
|
||||
### Execution authority
|
||||
|
||||
|
||||
@@ -22,7 +22,7 @@ Status: implemented
|
||||
|
||||
三个工具都采用独占执行，使模型排序的批次可以观察此前变更及其新修订号。结果为紧凑 JSON。UI 展示是参数的纯函数，使用通用读取或变更卡片；变更卡片选择输入时，先取有实际意义的操作值，再取目标 id，因此允许的占位值不会使卡片输入留空。激活态仅作为实时观察返回，绝不会写入回放状态。
|
||||
|
||||
自主目标回合成功报告完成或阻塞后，其工具结果会被标记为结束该物理轮次，避免再发起一次不必要的模型请求。直接人类发起的变更不会结束轮次：agent 可以确认该变更，并且并发的人类 steering（中途引导）仍可参与普通的停止检查。
|
||||
自主目标回合成功报告完成或阻塞后，其工具结果会附带一条收尾指令，模型仍会在轮次经由常规无工具调用停止路径结束前向用户发言；原先在结果处终结轮次的做法已被[Goal Round 收尾决策](../bug-fix/2026-08-02-goal-round-wrapup-message.md)取代。直接人类发起的变更不会收到指令：agent 可以确认该变更，并且并发的人类 steering（中途引导）仍可参与普通的停止检查。
|
||||
|
||||
### 执行权限
|
||||
|
||||
|
||||
@@ -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/2026-07-20-dsh-cli-personal-config.md
|
||||
2026-07-20-dsh-cli-personal-config.md: 3331e36c86002d91fb272868268707fed014d01a
|
||||
2026-07-20-dsh-cli-personal-config.zh.md: 172d84b075ed7ecc127c317b47e30581db67f89a
|
||||
2026-07-20-dsh-cli-personal-config.md: 1fa8cda2b34b58cc7a28b722872520b68a9b7009
|
||||
2026-07-20-dsh-cli-personal-config.zh.md: e70b8914cf005e0a2e54ba2b29d3b7def84b00db
|
||||
|
||||
@@ -12,21 +12,21 @@ A developer's own preferences — which provider and model the TUI uses, persona
|
||||
|
||||
Two coupled pieces, aligned with the `apps/` assembly tier proposed by the `dsh web` PR (#443):
|
||||
|
||||
**The `dsh` CLI (`apps/cli`, npm name `@deepseek-ai/dsh`).** `apps/*` joins the workspaces as the product-assembly tier over `packages/*` libraries. The bin's dispatch reserves `web` and `-p`/`--prompt` for PR #443 (they exit with a pointer) so the two branches merge as a near-union; everything else runs the default surface: the interactive TUI, booting the shipped `examples/tui-agent/cordis.yml` (or an explicit config argument) with the invoking directory as the workspace. The committed `bin/dsh` launcher resolves the checkout through its own real path and runs the bin **from source** through Node's native TypeScript transform plus the app-owned tsconfig-paths loader, so `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` installs a command that always executes the current working tree. `pnpm run demo:tui` runs the same entry.
|
||||
**The `dsh` CLI (`apps/cli`, npm name `@deepseek-ai/dsh`).** `apps/*` is the product-assembly tier over `packages/*` libraries. One bin dispatches the default interactive TUI, `-p`/`--prompt` headless turns, and the `web` surface. The TUI boots `examples/tui-agent/cordis.yml` (or `--config`) with the invoking directory as the workspace. The committed `bin/dsh` launcher resolves the checkout through its own real path and runs the app with tsx's ESM hook; the [source-launch decision](../architecture/2026-07-29-dsh-source-launch-tsx-esm.md) owns that contract. `pnpm run demo:tui` runs the same entry.
|
||||
|
||||
**Personal config (`dsh-app-boot`).** The personal overlay lives in the Harness home — `$DSH_HOME`, else `~/.dsh` — resolved by the shared [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md) (`@deepseek-ai/dsh-paths`), the same single root skills and AGENTS.md resolve against. The official dsh surfaces consume its two optional files; the demo bins boot their committed trees verbatim:
|
||||
**Personal config (`dsh-app-boot`).** The personal overlay lives in the Harness home — `$DSH_HOME`, else `~/.dsh` — resolved by the shared [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md) (`@deepseek-ai/dsh-paths`), the same single root skills and AGENTS.md resolve against. The dsh TUI, Web, and headless surfaces consume its two optional files; the demo bins boot their committed trees verbatim:
|
||||
|
||||
- `.env` — loaded after the invoking directory's `.env`; `process.loadEnvFile` never overrides, so precedence is ambient > project `.env` > personal `.env`.
|
||||
- `config.yaml` — a top-level YAML array of `@cordisjs/plugin-include` `PatchOptions`, parsed with the include's own `!!js` dialect (`loadPersonalPatches`) and passed to `boot()`, which forwards it as the root include's `patches`. Patch semantics match the shipped surface overlays: an id-targeted patch replaces the named entry's whole `config`, `insert` appends entries, and an unmatched id is a silent no-op.
|
||||
- `config.yaml` — a top-level YAML array of `@cordisjs/plugin-include` `PatchOptions`, parsed with the include's own `!!js` dialect (`loadPersonalPatches`) and passed to `boot()`, which forwards it as the root include's `patches`. Patch semantics match the shipped surface overlays: an id-targeted patch replaces the named entry's whole `config`, `insert` appends entries, and an unmatched id is a silent no-op. The [repository Plugin integration](2026-07-30-config-only-repository-plugins.md) uses one shipped row to make an exact GitHub source list a config-only choice.
|
||||
- A missing file means no overlay; a present-but-unreadable, unparsable, or non-array file throws at boot (misconfiguration fails loud, never a silent skip).
|
||||
|
||||
The PTY smoke's launcher isolates `$DSH_HOME` to a per-test directory, exactly as it already isolates `DSH_AGENTS_HOME`, so a developer's real personal overlay cannot leak into fixtures; only the dsh CLI reads personal config, so no other test launcher needed changes.
|
||||
|
||||
Hot-reload interplay: the include re-applies its `patches` on every config re-read (the [config hot-reload resilience Agent Note](../bug-fix/2026-07-20-config-hot-reload-resilience.md)), so a live `cordis.yml` edit keeps the personal overlay applied.
|
||||
The TUI and Web register the exact personal path through Cordis HMR after boot. Every add, change, or removal transactionally recomposes the full patch list through the launcher's own composition closure, so the fresh personal patches land in the same layer position they booted in. Invalid YAML or a rejected Loader candidate leaves the last good tree active and broadcasts `hmr/config-update-failed(filename, Error)`; the headless surface reads the file once at startup. The Include also re-applies its patches on committed config-file refreshes (the [config hot-reload resilience Agent Note](../bug-fix/2026-07-20-config-hot-reload-resilience.md)).
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**A standalone `bin/dsh` wrapper owning the `dsh` name.** Rejected after reading PR #443: that PR establishes `apps/cli` as the `dsh` CLI with subcommand dispatch (`web`, `-p`) and leaves the default slot unclaimed. Two competing `dsh` entrypoints would collide in `$PATH` and in product identity; claiming the default slot inside the same package shape confines the eventual merge conflict to the small dispatch chain.
|
||||
**A separate `bin/dsh` wrapper owning the `dsh` name.** Rejected because `apps/cli` is the single product CLI for default TUI, headless, and Web dispatch. Two competing entrypoints would collide in `$PATH` and product identity.
|
||||
|
||||
**A pi-style typed settings file (`defaultProvider`/`defaultModel`/`providers`).** Rejected by the user in favor of patch semantics: the personal file is a cordis overlay over the shipped default config, not a second config vocabulary to own and translate.
|
||||
|
||||
@@ -38,12 +38,12 @@ Hot-reload interplay: the include re-applies its `patches` on every config re-re
|
||||
|
||||
## Consequences
|
||||
|
||||
- `dsh` from any directory (and `pnpm run demo:tui`) boots the personal provider/model with zero repo changes; verified end-to-end against a personal Anthropic proxy with Opus 4.8, including a bash tool round trip.
|
||||
- Because an id-targeted patch replaces the whole `config`, a personal override restates the base fields it keeps and can drift when the base entry changes shape; the loader's entry-not-found/name-mismatch warnings are the only diagnostics.
|
||||
- `dsh` from any directory (and `pnpm run demo:tui`) can apply personal providers, models, repository Plugins, and other Loader entries with no checkout edit; verified end-to-end against a personal Anthropic proxy with Opus 4.8, including a bash tool round trip.
|
||||
- Because an id-targeted patch replaces the whole `config`, a personal override restates the base fields it keeps and can drift when the base entry changes shape; the loader's entry-not-found/name-mismatch warnings and [`dsh --dump-config`](2026-07-30-dsh-dump-config.md) (which prints the composed tree those patches produce) are the diagnostics.
|
||||
- Personal patches resolve ids against the booted file's own tree, so nested-include overlays (Code Mode) are not personalized; live-run parity for those leaves is deferred.
|
||||
- `dsh-app-boot` depends on `js-yaml` (plus a load-only copy of the include's `!!js` YAML type) and, like `apps/cli`, on `@deepseek-ai/dsh-paths` for `resolveDshHome`.
|
||||
- When PR #443 lands, `apps/cli/src/bin.ts`'s dispatch chain and `apps/cli/package.json`'s dependency list conflict textually; both resolve as unions (their `web`/`-p` branches plus our default-TUI branch).
|
||||
- `dsh-app-boot` depends on `js-yaml` and imports the include's `!!js` YAML dialect (`entryListSchema`) directly, and, like `apps/cli`, depends on `@deepseek-ai/dsh-paths` for `resolveDshHome`.
|
||||
- Live watching belongs only to long-running TUI and Web processes. Headless automation gets deterministic startup configuration and exits without retaining a watcher.
|
||||
|
||||
## Testing
|
||||
|
||||
`packages/ui/app-boot/tests/personal-config.spec.ts` pins `!!js` preservation and end-to-end interpolation through a booted tree, insert entries, the default directory resolving from `$DSH_HOME`, the absent/empty no-op paths, and the three fail-loud shapes (unreadable, unparsable, non-array). `examples/tui-agent/tests/tui-keyless-smoke.e2e.ts` boots the dsh bin in a PTY three ways: default config with no overlay, a personal `.env` + `config.yaml` chain whose patched welcome renders in the banner, and an invalid personal file failing the boot loudly. The pre-existing smokes and snapshot suites pass on a machine whose real `~/.dsh` overlay would change the booted model — the isolation, not luck.
|
||||
`packages/ui/app-boot/tests/personal-config.spec.ts` pins parsing, startup application, exact-path add/failure/recovery/removal, last-good rollback, failure broadcast, and preservation of app-owned patches. `examples/tui-agent/tests/tui-keyless-smoke.e2e.ts` boots the real dsh bin with no overlay, a personal environment and UI patch, a config-only cached repository skill, and invalid personal YAML. Test launchers isolate `$DSH_HOME`, so a developer's real overlay cannot leak into fixtures.
|
||||
|
||||
@@ -12,21 +12,21 @@ Status: implemented
|
||||
|
||||
两个耦合的部分，与 `dsh web` PR（#443）提出的 `apps/` 装配层对齐：
|
||||
|
||||
**`dsh` CLI（`apps/cli`，npm 名 `@deepseek-ai/dsh`）。** `apps/*` 作为 `packages/*` 库之上的产品装配层加入 workspaces。bin 的分发把 `web` 和 `-p`/`--prompt` 保留给 PR #443（它们以指引退出），使两个分支能以接近并集的方式合并；其余一切都运行默认表面：交互式 TUI，加载随仓库提供的 `examples/tui-agent/cordis.yml`（或显式的配置参数），并以调用目录为工作区。已提交的 `bin/dsh` 启动器通过自身真实路径解析 checkout，通过 Node 的原生 TypeScript 转换和应用自身持有的 tsconfig-paths loader **从源码**运行该 bin，因此 `ln -sf "$(pwd)/bin/dsh" ~/.local/bin/dsh` 安装的命令永远执行当前工作树。`pnpm run demo:tui` 运行同一入口。
|
||||
**`dsh` CLI（`apps/cli`，npm 名 `@deepseek-ai/dsh`）。** `apps/*` 是位于 `packages/*` 库之上的产品组装层。一个 bin 负责分发默认交互式 TUI、`-p`/`--prompt` 无头轮次和 `web` 界面。TUI 以调用目录为 workspace，启动 `examples/tui-agent/cordis.yml`（或 `--config` 指定的配置）。已提交的 `bin/dsh` 启动器通过自身真实路径解析 checkout，并使用 tsx 的 ESM hook 运行应用；该契约由[源码启动决策](../architecture/2026-07-29-dsh-source-launch-tsx-esm.md)维护。`pnpm run demo:tui` 运行同一入口。
|
||||
|
||||
**个人配置（`dsh-app-boot`）。** 个人 overlay 存放在 Harness home——`$DSH_HOME`，否则 `~/.dsh`——由共享的 [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md)（`@deepseek-ai/dsh-paths`）解析，与 skills、AGENTS.md 解析所依据的单一根目录相同。dsh 的官方界面消费其中两个可选文件；各示例 bin 仍然逐字节按已提交的配置树启动：
|
||||
**个人配置（`dsh-app-boot`）。** 个人 overlay 存放在 Harness home——`$DSH_HOME`，否则 `~/.dsh`——由共享的 [`resolveDshHome`](../architecture/2026-07-24-single-harness-home-resolver.md)（`@deepseek-ai/dsh-paths`）解析，与 skills、AGENTS.md 解析所依据的单一根目录相同。dsh 的 TUI、Web 和无头界面使用其中两个可选文件；各示例 bin 仍然逐字节按已提交的配置树启动：
|
||||
|
||||
- `.env`——在调用目录的 `.env` 之后加载；`process.loadEnvFile` 从不覆盖已有值，因此优先级为环境变量 > 项目 `.env` > 个人 `.env`。
|
||||
- `config.yaml`——顶层 YAML 数组，元素为 `@cordisjs/plugin-include` 的 `PatchOptions`，用 include 自己的 `!!js` 方言解析（`loadPersonalPatches`）并传给 `boot()`，由它作为根 include 的 `patches` 转发。补丁语义与交付的 surface overlay 一致：按 id 定位的补丁替换该配置项的整个 `config`，`insert` 追加配置项，未匹配的 id 静默不执行任何操作。
|
||||
- `config.yaml`——顶层 YAML 数组，元素为 `@cordisjs/plugin-include` 的 `PatchOptions`，用 include 自己的 `!!js` 方言解析（`loadPersonalPatches`）并传给 `boot()`，由它作为根 include 的 `patches` 转发。补丁语义与交付的 surface overlay 一致：按 id 定位的补丁替换该配置项的整个 `config`，`insert` 追加配置项，未匹配的 id 静默不执行任何操作。[仓库插件集成](2026-07-30-config-only-repository-plugins.md)通过一个已交付配置项，使精确 GitHub 源列表成为纯配置选择。
|
||||
- 文件缺失即无 overlay；文件存在但不可读、不可解析或非数组则在启动时抛出（配置错误响亮失败，绝不静默跳过）。
|
||||
|
||||
PTY 冒烟测试的启动器把 `$DSH_HOME` 隔离到每个测试自己的目录，与它已有的 `DSH_AGENTS_HOME` 隔离方式完全一致，开发者真实的个人 overlay 不可能泄漏进 fixture；只有 dsh CLI 读取个人配置，因此其他测试启动器无需改动。
|
||||
|
||||
与热重载的交互：include 在每次配置重读时重新应用其 `patches`（见[配置热重载韧性 Agent Note](../bug-fix/2026-07-20-config-hot-reload-resilience.md)），因此运行中编辑 `cordis.yml` 后个人 overlay 仍保持生效。
|
||||
TUI 和 Web 启动后通过 Cordis HMR（热模块替换）注册确切的个人配置路径。每次新增、变更或移除都会以事务方式通过启动器自己的组合闭包重新组合完整 patch 列表，因此新的个人 patch 落在启动时相同的层次位置。YAML 无效或 Loader 候选被拒时，最后一个可用树保持活动状态，并广播 `hmr/config-update-failed(filename, Error)`；无头界面只在启动时读取该文件。Include 在已提交配置文件刷新时也会重新应用其 patch（见[配置热重载韧性 Agent Note](../bug-fix/2026-07-20-config-hot-reload-resilience.md)）。
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**独立的 `bin/dsh` 包装脚本占有 `dsh` 这个名字。** 读过 PR #443 后否决：该 PR 把 `apps/cli` 确立为带子命令分发（`web`、`-p`）的 `dsh` CLI，并且默认位空缺。两个互相竞争的 `dsh` 入口会在 `$PATH` 和产品身份上冲突；在同一包形态内认领默认位，把最终的合并冲突限制在小小的分发链上。
|
||||
**另设一个 `bin/dsh` 包装脚本并由其占用 `dsh` 名称。** 否决，因为 `apps/cli` 是统一的产品 CLI，负责分发默认 TUI、无头和 Web 界面。两个相互竞争的入口会在 `$PATH` 和产品身份上冲突。
|
||||
|
||||
**pi 风格的类型化设置文件（`defaultProvider`/`defaultModel`/`providers`）。** 用户否决，选择补丁语义：个人文件是叠加在随仓库提供的默认配置之上的 cordis overlay，而不是需要另行拥有和翻译的第二套配置词汇。
|
||||
|
||||
@@ -38,12 +38,12 @@ PTY 冒烟测试的启动器把 `$DSH_HOME` 隔离到每个测试自己的目录
|
||||
|
||||
## Consequences
|
||||
|
||||
- 在任意目录运行 `dsh`（以及 `pnpm run demo:tui`）即可零仓库改动地使用个人提供方/模型；已针对个人 Anthropic 代理与 Opus 4.8 端到端验证，包括一次 bash 工具往返。
|
||||
- 由于按 id 定位的补丁替换整个 `config`，个人覆盖必须复述它保留的基础字段，并可能随基础配置项形态变化而漂移；loader 的「配置项未找到/名称不匹配」警告是仅有的诊断。
|
||||
- 在任意目录运行 `dsh`（以及 `pnpm run demo:tui`），无需修改 checkout，即可应用个人提供方、模型、仓库插件和其他 Loader 配置项；已针对个人 Anthropic 代理与 Opus 4.8 端到端验证，包括一次 bash 工具往返。
|
||||
- 由于按 id 定位的补丁替换整个 `config`，个人覆盖必须复述它保留的基础字段，并可能随基础配置项形态变化而漂移；诊断手段是 loader 的「配置项未找到/名称不匹配」警告和 [`dsh --dump-config`](2026-07-30-dsh-dump-config.md)（打印这些补丁合成出的配置树）。
|
||||
- 个人补丁只在被启动文件自身的树里解析 id，因此嵌套 include 的 overlay（Code Mode）不会被个性化；这些叶子的实际运行等价性暂缓。
|
||||
- `dsh-app-boot` 依赖 `js-yaml`（外加一份只用于加载的 include `!!js` YAML 类型副本），并与 `apps/cli` 一样依赖 `@deepseek-ai/dsh-paths` 以获取 `resolveDshHome`。
|
||||
- PR #443 落地时，`apps/cli/src/bin.ts` 的分发链与 `apps/cli/package.json` 的依赖列表会产生文本冲突；两者都按并集解决（他们的 `web`/`-p` 分支加上我们的默认 TUI 分支）。
|
||||
- `dsh-app-boot` 依赖 `js-yaml`，并直接导入 include 的 `!!js` YAML 方言（`entryListSchema`）；与 `apps/cli` 一样依赖 `@deepseek-ai/dsh-paths` 以获取 `resolveDshHome`。
|
||||
- 只有长时间运行的 TUI 和 Web 进程进行实时监视。无头自动化使用确定性的启动配置，退出时不会保留 watcher。
|
||||
|
||||
## Testing
|
||||
|
||||
`packages/ui/app-boot/tests/personal-config.spec.ts` 固定 `!!js` 的保留与经真实启动树的端到端插值、insert 配置项、默认目录从 `$DSH_HOME` 解析、缺失/为空的无操作路径，以及三种响亮失败形态（不可读、不可解析、非数组）。`examples/tui-agent/tests/tui-keyless-smoke.e2e.ts` 在 PTY 里以三种方式启动 dsh bin：无 overlay 的默认配置、个人 `.env` + `config.yaml` 链条（打补丁的欢迎语渲染进横幅）、以及无效个人文件导致的响亮启动失败。既有冒烟与快照套件在一台真实 `~/.dsh` overlay 会改变启动模型的机器上通过——靠隔离，不靠运气。
|
||||
`packages/ui/app-boot/tests/personal-config.spec.ts` 固定解析、启动时应用、确切路径的新增／失败／恢复／移除、最后可用状态回滚、失败广播以及应用自有 patch 的保留。`examples/tui-agent/tests/tui-keyless-smoke.e2e.ts` 启动真实 dsh bin，覆盖无 overlay、个人环境与 UI patch、纯配置的缓存 repository skill，以及无效个人 YAML。测试启动器会隔离 `$DSH_HOME`，因此开发者的真实 overlay 不会泄漏进 fixture。
|
||||
|
||||
@@ -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/2026-07-21-continuable-background-subagents.md
|
||||
2026-07-21-continuable-background-subagents.md: 6bbbfb25fb24eba95de888c9d23c79e24fc8535b
|
||||
2026-07-21-continuable-background-subagents.zh.md: e23fbe67cc2d16a2c01a1b7ed4884008f8932dd4
|
||||
@@ -0,0 +1,127 @@
|
||||
# Agent Note: Continuable background subagents
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-21-continuable-background-subagents.zh.md)
|
||||
|
||||
This record is superseded by [Continuable subagents](2026-07-28-continuable-subagent-conversations.md), which replaces its Task-backed activation model, routing, cancellation, and durability semantics with one durable Session plus at most one process-local Activation. Its service-placement and provider-capability policy were already superseded by [Merge subagent control into the subagent service](../simplification/2026-07-26-merge-subagent-control-service.md) and [Intent-named subagent continuation operations](../simplification/2026-07-27-intent-named-subagent-continuation-operations.md). Only the durable child-session and descriptor rationale remains in force.
|
||||
|
||||
## Problem
|
||||
|
||||
The subagent tool treats each delegation as one owned `SubagentRun`: foreground calls and background Tasks collect the result and then dispose the run. Disposal bounds the number of live child Agents and releases their scoped services, listeners, and provider resources. The persisted child session may survive, but the parent has no durable catalog or tool path for discovering that child and starting another turn on it.
|
||||
|
||||
A Task, a run, and a child session have different lifetimes. A Task represents one background turn and has one terminal result. A `SubagentRun` owns one activation of a child. A persisted child session may contain many turns initiated by the parent or a human. Continuation must preserve per-run disposal rather than retain every historical child Agent in memory.
|
||||
|
||||
## Decision
|
||||
|
||||
A continuable background subagent is a durable child session with a series of Task-backed activations. The child session id, transcript, lineage, and declared composition survive in persistence. Each initial or resumed activation creates a fresh Task, `AgentHandle`, and `SubagentRun`, drives one turn, collects its result, and disposes the run before the Task becomes terminal.
|
||||
|
||||
The Task's result and cancellation boundary belong to the child activation, not to whichever caller supplied its first message. Task access is authorized by the parent session id, while the Task registry retains the exact live parent Agent instance for notification and teardown. Parent and human messages therefore share one activation result while the parent remains its runtime owner:
|
||||
|
||||
```text
|
||||
durable child Session
|
||||
activation 1: Task 1 -> SubagentRun -> AgentHandle -> dispose
|
||||
activation 2: Task 2 -> SubagentRun -> AgentHandle -> dispose
|
||||
activation 3: Task 3 -> SubagentRun -> AgentHandle -> dispose
|
||||
```
|
||||
|
||||
Foreground delegation keeps its one-shot behavior. Continuation covers background in-process spawn and fork children. Each `tool-subagent` instance selects `backgroundMode: 'one-shot' | 'continuable'`; configured continuable mode requires the mounted provider's `resume` capability, while a resumable provider may still use one-shot background policy. ACP children remain one-shot until the deferred ACP continuation work below is complete.
|
||||
|
||||
`ctx.subagents` is the only public service. Ordinary `start` stays collection-, Activation-, and persistence-agnostic: it validates provider capabilities, resolves the one-shot descriptor, dispatches one run, observes run lifecycle, and returns a holder-owned run. An injected internal continuation manager owns stable child ids, continuable descriptor persistence and lookup, Activation lifecycle, and routing through `startContinuable` and `followup`; provider preparation uses a private closure before the manager composes the child itself. The provider-bound `@deepseek-ai/dsh-tool-subagent` plugin and human-facing adapters call the intent operations for continuable background work; foreground and one-shot background delegation use ordinary `start`. The globally named model tool is a thin optional adapter in `@deepseek-ai/dsh-tool-subagent-control`, and its presence does not decide whether continuable work starts. Parent-to-child enumeration, the shared one-shot/continuable descriptor identity, and `list_agents` belong to the [durable subagent catalog](2026-07-22-durable-subagent-catalog-and-list-agents.md).
|
||||
|
||||
### Task and cancellation ownership
|
||||
|
||||
The initial background delegation asks `ctx.subagents` to start the child and register its Task. A continuable provider confirms the activation's final session state durable before fulfilling a successful run result. Task settlement awaits that result, calls `run.dispose()` through the continuation manager's settlement path, and only then records the `TaskOutcome`; `task_kill` aborts the active run, whose settlement path still disposes it. A terminal Task therefore leaves the durable child session but no live child Agent. A required durability checkpoint with no installed listener or a failing listener rejects the run with stable code `DURABILITY_FAILED` and the checkpoint failure as its cause; the manager records a failed Task whose detail explains that the latest state was not confirmed persisted and may be unavailable or stale on resume.
|
||||
|
||||
Every later turn creates another Task. Its producer resources cover only that activation, never the child session. It reaches one terminal status, has one result, and is never reopened. The exact live parent Agent remains the Task registry owner: disposing that instance cancels, awaits, and removes its Tasks. Task APIs authorize a caller whose session id matches that owner, but a same-id replacement does not become the notification or teardown target. This preserves the `settleRun()` contract and bounds Task-owned live children by concurrent work rather than historical session count.
|
||||
|
||||
Opening a child session in a human-facing adapter reads its persisted transcript and does not resume an Agent merely to display it. Human input starts or joins the same Task-backed activation used by parent input through the continuation manager. A human-started Task retains the exact currently loaded parent Agent as its notification target, and `task_output` remains the single result path. The existing completion listener injects at most one unsolicited notice while the Task is unreported; `kill`, a terminal read, or a terminal wait may mark it reported and suppress that notice. Human interaction is therefore permitted only while that parent instance remains live. A user-owned conversation that may outlive the parent and explicitly merge a conclusion back belongs to [interactive side sessions](../../proposed/feature/2026-07-08-interactive-side-sessions.md), not this Task-owned lifecycle.
|
||||
|
||||
`TaskService.start()` rejects producers when no Task control surface is attached. A human-facing adapter that accepts child input must therefore attach a Task control surface, or run in a deployment that loads `@deepseek-ai/dsh-tool-tasks`; loading the Task service alone is insufficient. SDK-generated spawn and fork compositions mount `@deepseek-ai/dsh-tasks-local` and `@deepseek-ai/dsh-tool-tasks` with the subagent tools. This dependency is the cost of using the same Task result, cancellation, and notification path for parent- and human-started activations.
|
||||
|
||||
Cancellation always targets the whole current activation. If human and parent messages have joined one turn, either caller's cancellation aborts that turn, disposes its run, and settles its Task as `killed`; the messages do not have independent results or cancellation rights. `followup()` requires the caller's signal, and abort while live steering awaits request admission aborts the activation-owned controller so the provider discards the pending message and the call settles only after the child reaches quiescence. Independent cancellation requires a later message to start a separate turn instead of steering the current one.
|
||||
|
||||
A cold-resume Task creates its activation-owned `AbortController` before descriptor lookup or any provider await; the lookup, direct-parent authorization, and descriptor fold run inside the Task producer, so the same signal covers them and their failures settle that Task as `failed`. A persistence call that has no signal need not stop its underlying I/O, but the continuation manager rechecks cancellation after every such await and cannot begin or publish child work afterward. Before Agent publication, abort makes the provider reject only after its creation transaction has rolled back and reached quiescence. After publication, the provider closes the creation-signal handoff race, attaches the same signal to the live run before returning it, and cancellation stops the child turn. `task_kill` and exact-owner disposal use this path even when provider resume has not returned a `SubagentRun`; Task settlement waits for rollback or run disposal and records `killed` only after the activation is quiescent.
|
||||
|
||||
### Active run association
|
||||
|
||||
The continuation manager keeps a process-local association from child session id to its current Task and, after provider publication, its run. It installs the Task association before awaiting provider start or resume, fills in the returned run, and removes the association only after run disposal and Task terminal publication. This association exists only so parent and human senders can find the same activation; it is not a durable catalog, public `ManagedSubagent`, admission reservation, or run-state machine.
|
||||
|
||||
For a continuable initial activation, the continuation manager allocates the stable child session id before Task creation and passes it as `SubagentProviderStartRequest.continuation`; in-process spawn and fork publish that exact id instead of allocating one internally. Ordinary `SubagentStartRequest` has no continuation field. The background tool returns canonical `{ kind: 'background', taskId, subagentId }`, rendered as `started subagent <childId> as task <taskId>`. The child id names the durable conversation across activations, while the Task id names only the current activation. A failed initial Task or a process exit before the first child flush can leave an **unmaterialized child**: the caller holds a child id without a durable header and descriptor. Later by-id operations report that id as unavailable (the started Task fails with that detail), and durable enumeration omits it.
|
||||
|
||||
Every continuable child turn is admitted through this Task-backed path. A non-terminal Task is the only supported live activation; when no activation exists, its run has already been disposed and the durable child is resumable. Before routing any by-id operation, the continuation manager synchronously compares its association with `ctx.agents.get(childId)`. A registry Agent with no association, or a registry Agent different from the associated `run.localAgent`, is an ownership conflict: the manager fails rather than adopting an idle Agent or attaching an untracked turn. When neither exists, cold resume may proceed; a competing publication after that check still loses at the Agent registry collision boundary.
|
||||
|
||||
Routing follows the Task association. A running Task accepts live delivery through the run's optional confirmed `SubagentRun.steer` capability. An absent Task starts a fresh Task and cold-resumes the child. In-process spawn and fork first synchronously require the child to be `running` and reject an already committed structured capture, then call `Agent.steer()` and await that exact message's admission receipt. The default loop gives every steering item a message-owned receipt and resolves it `admitted` only after `agent/step` and asynchronous prompt assembly succeed, the message is appended, immutable request history is captured, and `step/start` commits; terminal turn policy, cancellation, and disposal resolve pending receipts `rejected`. A non-terminal turn close may carry pending steering into a later queued turn without acknowledging it. Providers must check the live status before `Agent.steer()` so its idle path cannot start a turn outside the observed run. If Task settlement or terminal policy wins after association lookup but before request admission, `steer()` rejects, `send_message` reports the message as not delivered, and that call does not fall through to cold resume; a later retry after Task terminal may start the next activation.
|
||||
|
||||
The continuation manager does not serialize two callers that race a stopped child through paths outside it, nor does it model a separate settling phase between result production and disposal. The synchronous association install before the producer's first await admits one activation per child in this process — a competing `followup` during resume load observes the pending activation and fails explicitly — while a bypassing publication still loses at the Agent registry's same-session collision boundary. Delivery racing startup, cancellation, completion, or cleanup may also fail. These limitations are explicit rather than hidden behind a larger lifecycle abstraction.
|
||||
|
||||
### Model-facing `send_message`
|
||||
|
||||
The model receives one `send_message(subagent_id, message)` tool backed by `SubagentService.followup()`, matching the intent verb on `Agent`. The service operation owns steer-or-resume orchestration and is distinct from the run's `SubagentRun.steer?()`, which only delivers to an already active run. The tool performs no lifecycle routing of its own. It attributes the follow-up as `{ kind: 'coordinator', senderSessionId: parent.id }` and forwards `{ source, signal }`; the service requires both facts in one options object. The source crosses both live steering and cold resume, while cancellation owns only a pending live-delivery wait because a cold-resume Task returns immediately and owns its later cancellation. The child model still receives ordinary user-role content, while the durable source prevents model-generated follow-ups from being classified as direct human input. A human adapter instead supplies `{ kind: 'user' }` and its interaction signal. The tool lives in the separately loaded `@deepseek-ai/dsh-tool-subagent-control` package so provider-bound `@deepseek-ai/dsh-tool-subagent` instances can continue registering distinct delegation tools for spawn, fork, or ACP without registering duplicate global control tools.
|
||||
|
||||
- If the child has a running Task and live-steering capability, the service calls `run.steer(message, source)` and returns the existing Task id; it creates no Task of its own.
|
||||
- If the child has no running Task, `send_message` creates a fresh Task, cold-resumes the durable session with the message, and returns the new Task id.
|
||||
- If the active provider cannot accept live delivery, confirmed steering loses its admission race, or a live child exists outside the Task association, `send_message` fails rather than silently starting, resuming, or adopting an untracked turn.
|
||||
|
||||
The service result identifies the route as `steered` with the existing Task id or `started` with the new Task id. Failure is explicit and says that the message was not delivered. The model-facing tool renders these distinctions so timing-dependent routing is observable to the caller.
|
||||
|
||||
A delivered message has no independent result: its effect is reflected in the current Task's eventual result. A started follow-up has the fresh Task's result and existing `task_output` read path. The subagent layer adds no second completion injection.
|
||||
|
||||
Human input uses the same `followup` operation. The UI may display the child transcript and current Task state, while cancellation calls the Task service with the loaded parent as caller. Tool schema and UI adapters are consumers of one service contract rather than separate execution paths.
|
||||
|
||||
### Durable child handle and cold resume
|
||||
|
||||
The continuation manager snapshots every descriptor input with the seam's `snapshotSubagentDescriptor()` (built on [`snapshotJsonValue`](../../../../packages/core/session/src/json.ts)) before Task creation, matching the detached lossless-JSON boundary already used by Agent messages. A child-scoped setup contribution — a prepended one-shot `agent/prompt-submit` listener installed by the in-process driver — appends one model-hidden `subagent/descriptor` event before downstream prompt admission can block or throw. Allowed admission opens the initial child turn afterward; rejected admission leaves the descriptor as a pre-turn log-only fact, and the activation's final required checkpoint persists it. The event carries no `surfaceOp`, remains outside model history, and survives when compaction replaces surface history. A known child id is resumable only when loading that child session yields a supported descriptor in the child's own suffix (after `seedLength`, so a fork seed cannot leak an ancestor's descriptor) and its header identifies the caller as the direct parent.
|
||||
|
||||
The continuable arm of the versioned descriptor (`SUBAGENT_DESCRIPTOR_VERSION` in [descriptor.ts](../../../../packages/subagent/subagent/src/descriptor.ts)) carries `mode: 'continuable'`, the subagent provider name, resolved child `agentOptions.provider` and `agentOptions.model`, and optional `persona` and `toolFilter`. It does not snapshot the merge-extensible `AgentOptions` object: unrelated extension values cannot make continuation fail merely because they are not JSON. It deliberately omits `subagentDepth`; cold resume relies on the persisted header's `delegationDepth` rather than reconstructing depth from the descriptor. `outputSchema` belongs to one activation's result contract rather than durable child composition. The child header remains authoritative for the child id, `cwd`, `parentSession`, `seedLength`, and `delegationDepth`, while the persisted child transcript owns the fork seed and subsequent history. [`delegationDepthOf()`](../../../../packages/subagent/subagent/src/index.ts) takes the maximum of header and runtime values, so reconstructed runtime options may deepen the persisted value but never lower it and a resumed child cannot regain a top-level delegation budget.
|
||||
|
||||
Cold resume cannot depend on an optional method of `SubagentRun`, because that run has been disposed and is not retained across process restart. A run represents one disposable activation and exposes only activation-scoped operations. `SubagentRun.steer?()` names the confirmed live-only capability so it cannot be confused with service orchestration or the model-facing tool.
|
||||
|
||||
The internal continuation manager's resume path loads the known child session, folds its descriptor, authorizes the persisted `parentSession`, and runs inside the Task it creates. It passes a fully resolved `SubagentProviderResumeRequest`, including the Task-owned cancellation signal, through a private service closure whose only responsibility is capability-checked provider dispatch and the ordinary run lifecycle observation used by `start`. The selected `SubagentProvider.resume?()` owns transport-specific reconstruction (in-process: `parent.ctx.agents.resume` under the currently loaded parent scope) and returns a fresh run. Presence of the provider method is the continuation capability, so no redundant capability flag exists. `SubagentService.followup()` chooses between the associated run's `steer?()` operation and this cold-resume path. Neither private provider dispatch nor a provider enumerates durable children or associates Tasks.
|
||||
|
||||
The background tool validates and snapshots descriptor inputs before calling `TaskService.start()`. A synchronous validation failure rejects the tool call and creates no Task. The tool otherwise returns the child and Task ids immediately, without waiting for child publication or descriptor durability. In-process continuable providers perform a final `SessionStore.flush()` after the child becomes idle and before reading the result; `true` confirms at least one durability listener participated, `false` is a required-checkpoint failure, and rejection carries a listener failure. This retries a failed loop checkpoint while the child is still live. If the final confirmation fails, the provider rejects instead of returning unconfirmed output, the continuation manager disposes the run, and the already-created Task settles as `failed` with the durability diagnosis in its detail. Cancellation during the confirmation owns the still-unpublished activation result, so a completed child turn or a later checkpoint failure cannot replace the Task's `killed` outcome. Foreground one-shot runs retain the loop's best-effort checkpoint behavior. In-process spawn and fork reconstruct composition under the currently loaded parent scope. A fork resume loads the child's own persisted transcript, which already contains the completed-turn prefix captured at initial creation; it never forks the parent's newer history again. Resuming a parent does not eagerly resume its children.
|
||||
|
||||
TODO (ACP continuation): persist the remote ACP session id as provider-specific descriptor data and implement `AcpProvider.resume?()` as spawn, initialize, `loadSession`, then prompt. The initial ACP run must verify `initialize.agentCapabilities.loadSession`, and every resumed process must use the same durable backend; replayed history from `loadSession` must not be collected as the new activation's output. Because ACP load support is negotiated per child rather than established solely by the provider method's presence, this follow-up must also define how a start result advertises child-specific continuation before ACP children enter the durable catalog.
|
||||
|
||||
### Result and notification ownership
|
||||
|
||||
Every continuable child activation has exactly one Task and one `TaskOutcome`, regardless of whether the parent or a human supplied the first message. The generic Task reporting contract may inject at most one unsolicited completion notice to the retained parent owner while the Task is unreported; reads, waits, and cancellation may suppress it. Running delivery joins that activation and creates neither a second Task nor a second result. The child transcript remains the human-facing detailed record; Task output remains the parent-facing final result.
|
||||
|
||||
Task records and active-run associations are process-local. Persistence makes the child session resumable after restart, but does not recover an interrupted Task, its result, or its notification. Durable Task recovery is a separate concern.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Retain every background child after Task settlement.** This is the Codex-style resident-session model: follow-up delivery is cheap, but historical children retain Agent scopes, session memory, listeners, and provider resources until an explicit residency limit or eviction policy removes them. Per-activation disposal uses persistence as the continuation boundary and preserves the current resource bound.
|
||||
|
||||
**Let human turns run without Tasks.** A parent message joining such a turn has no Task result or completion notice, and UI cancellation has unclear effects on the parent's contribution. Giving every activation one Task makes completion and cancellation properties of the child turn rather than its initiating caller.
|
||||
|
||||
**Keep one Task for the lifetime of a child session.** A terminal Task cannot naturally become running again, and one result cannot represent multiple turns. Fresh activation-scoped Tasks preserve the generic Task contract.
|
||||
|
||||
**Create a Task for every message.** Steering joins an existing turn and has no independent final result, so a Task created for steering would duplicate the active Task or report a result it does not own. Only a message that starts an activation creates a Task.
|
||||
|
||||
**Split `send_message` and `follow_up`.** Separate delivery operations expose an implementation-state distinction to the model without removing stopped-child races. One operation follows the Claude Code model: deliver to running work or resume a new Task-backed lifecycle.
|
||||
|
||||
**Keep `resume?()` on the disposed run.** Retaining a disposed `SubagentRun` only to call `resume()` makes the old run double as a durable child handle and cannot reconstruct that object after restart. Service dispatch plus provider reconstruction makes the persistence boundary explicit.
|
||||
|
||||
**Put control orchestration on `SubagentService`.** This service-placement alternative is the [merged-service decision](../simplification/2026-07-26-merge-subagent-control-service.md); the [intent-operation refinement](../simplification/2026-07-27-intent-named-subagent-continuation-operations.md) keeps provider start/resume dispatch reusable only inside the service while isolating optional Task and persistence work in an injected internal manager.
|
||||
|
||||
**Add explicit activation phases.** Public `starting`/`running`/`settling` states could describe admission and cleanup precisely, but would add a lifecycle protocol the implementation does not otherwise need. The synchronous association install closes duplicate process-local cold resume without exposing those phases.
|
||||
|
||||
## Testing
|
||||
|
||||
- `packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts` pins the continuable durability boundary: an absent or detached flush listener and a permanent listener failure reject with `DURABILITY_FAILED`, a transient loop-checkpoint failure can succeed on the final confirmation, cancellation owns either final-checkpoint outcome, resume also confirms durability, and foreground runs remain best-effort. `packages/subagent/subagent/tests/continuation.spec.ts` drives the real stack (agent loop, JSONL persistence, spawn/fork providers, Task service, and `ctx.subagents`) keylessly: initial and resumed activations create fresh Tasks and dispose their runs before terminal; the descriptor event is pre-turn, model-hidden, versioned, durable under the service-allocated child id, and survives blocked or throwing initial prompt admission; cancellation, steering, cold follow-up, authorization, ownership conflicts, and resume races retain the contracts described above.
|
||||
- `packages/subagent/tool-subagent-control/tests/tool-subagent-control.spec.ts` pins the `send_message` schema, coordinator attribution, both route renderings, the not-delivered failure, the no-agent rejection, and HMR disposal.
|
||||
- `packages/subagent/tool-subagent/tests/tool-subagent.spec.ts` covers the configured background route: continuable mode requires a resumable provider and returns both ids without requiring `send_message`, while one-shot mode keeps the plain Task acknowledgement even when the provider can resume.
|
||||
- `packages/sdk/helper/tests/project.spec.ts` pins the Task service and model-facing Task controls in generated spawn and fork compositions.
|
||||
- The keyless ACP snapshot scenario `subagent-continuable` (examples/acp-agent) pins the model-visible transcript: the two-id acknowledgement, a final durability-confirmation failure rendered through `task_output` without unconfirmed child output, and a `send_message` follow-up whose started Task fails with the id unavailable.
|
||||
|
||||
## Consequences
|
||||
|
||||
- Every follow-up after settlement pays persistence load and scoped setup cost; in exchange, live children stay bounded by concurrent work rather than historical session count. Continuable creation fails clearly when persistence is unavailable or the stored composition cannot be reconstructed.
|
||||
- Two callers may still race a stopped child through paths outside the continuation manager. The Agent registry prevents duplicate same-session publication; a losing Task fails and its message is not delivered. A message may also race cancellation, terminal status publication, or run disposal. Admission is not claimed to be atomic or exactly-once; the synchronous process-local association install closes duplicate cold resume through `followup` without a public lifecycle state machine.
|
||||
- Driving a continuable child through the ordinary Agent API bypasses its Task association. `ctx.subagents` rejects that live child as an ownership conflict; adapters must display persisted transcripts without loading an Agent and submit human input through `SubagentService.followup()`.
|
||||
- The active-run association coordinates only one runtime. Concurrent resume from multiple processes is not serialized; that deployment requires a persistence-level lease or compare-and-set operation.
|
||||
- Human interaction requires the exact parent Agent instance to remain live because owner disposal cancels and removes its Tasks. It also requires an attached Task control surface. Standalone child interaction requires a future separation between Task access ownership and durable notification targeting.
|
||||
- The background tool returns child and Task ids before child publication and descriptor durability. Startup failure, a failed final durability confirmation, or process exit before the first child flush leaves the Task failed and may leave an unmaterialized or stale child id; by-id control reports missing state as unavailable rather than retroactively changing the tool acknowledgement.
|
||||
- Persisting explicit composition fields in the child log makes their lossless-JSON and compatibility contract part of resume. Later support for another composition input requires a deliberate descriptor-version change rather than implicitly persisting merge-extensible `AgentOptions` fields.
|
||||
- Task records and active-run associations are process-local even though child sessions are durable. Restart recovers the session, not in-flight work or its Task notification.
|
||||
@@ -0,0 +1,127 @@
|
||||
# Agent Note: 可继续的后台 subagent
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-21-continuable-background-subagents.md) | 中文
|
||||
|
||||
本记录已由[可继续的 subagent](2026-07-28-continuable-subagent-conversations.md)取代——后者以一个持久 Session 加至多一个进程内 Activation（驻留期）替换了其基于 Task 的 activation 模型、路由、取消和持久性语义。其服务放置与提供方功能策略此前已由[将 subagent 控制合并到 subagent 服务](../simplification/2026-07-26-merge-subagent-control-service.md)和[以意图命名的 subagent 继续执行操作](../simplification/2026-07-27-intent-named-subagent-continuation-operations.md)取代。仅持久 child 会话与 descriptor 的设计依据仍然有效。
|
||||
|
||||
## 问题
|
||||
|
||||
subagent 工具将每次委派视为一个独占的 `SubagentRun`：前台调用和后台 Task 收集结果后 dispose（资源释放）该 run。这种所有权关系能够限制存活 child agent（智能体）的数量，并释放其作用域服务、监听器及提供方资源。持久化的 child 会话可能继续存在，但 parent 缺少持久化目录和工具路径，无法发现该 child 并为其启动另一轮次。
|
||||
|
||||
Task、run 和 child 会话具有不同的生命周期。一个 Task 表示一轮后台执行，并且只有一个终态结果。一个 `SubagentRun` 拥有 child 的一次激活。一个持久化 child 会话可以包含多个由 parent 或用户发起的轮次。继续执行必须保留逐 run dispose 的约定，而不能把所有历史 child agent 都留在内存中。
|
||||
|
||||
## 决策
|
||||
|
||||
一个可继续的后台 subagent，是由一系列 Task 支撑的短期激活共同组成的持久化 child 会话。child session id、transcript（文本记录）、谱系及声明的组合配置均保留在持久化存储中。每次初始激活或恢复激活都会创建新的 Task、`AgentHandle` 和 `SubagentRun`，驱动一个轮次、收集结果，并在 Task 进入终态前 dispose 该 run。
|
||||
|
||||
Task 的结果和取消边界属于 child 激活，不属于为该激活提供第一条消息的调用方。Task 访问根据 parent session id 授权，而 Task 注册表仍保留当前存活的精确 parent Agent 实例，用于通知与资源清理。因此，只要 parent 仍是运行时 owner，parent 消息和用户消息便会共享同一个激活结果：
|
||||
|
||||
```text
|
||||
durable child Session
|
||||
activation 1: Task 1 -> SubagentRun -> AgentHandle -> dispose
|
||||
activation 2: Task 2 -> SubagentRun -> AgentHandle -> dispose
|
||||
activation 3: Task 3 -> SubagentRun -> AgentHandle -> dispose
|
||||
```
|
||||
|
||||
前台委派保持一次性行为。继续执行覆盖后台的进程内 spawn 和 fork child。每个 `tool-subagent` 实例都会选择 `backgroundMode: 'one-shot' | 'continuable'`；配置为可继续模式时，所挂载提供方必须具备 `resume` 功能，而可恢复的提供方仍可采用一次性后台策略。在下述 ACP（Agent Client Protocol）后续工作完成前，ACP child 仍保持一次性行为。
|
||||
|
||||
`ctx.subagents` 是唯一的公开服务。普通 `start` 不感知 child 集合、Activation 与持久化：它校验提供方功能、解析一次性描述符、分发一个 run、观察 run 生命周期，并返回由持有方负责的 run。注入的内部继续执行管理器负责管理稳定的 child id、可继续描述符持久化与查找、Activation 生命周期，以及通过 `startContinuable` 和 `followup` 进行的路由；管理器自行组合 child 之前，提供方通过私有闭包提供准备数据。按提供方绑定的 `@deepseek-ai/dsh-tool-subagent` 插件及面向用户的适配器调用这些意图操作来处理可继续后台工作；前台和一次性后台委派使用普通 `start`。全局命名的模型工具是 `@deepseek-ai/dsh-tool-subagent-control` 中的可选轻量适配器，它是否存在不会决定是否启动可继续工作。parent 到 child 的枚举、一次性／可继续模式共享的描述符身份与 `list_agents` 属于[持久化 subagent 目录](2026-07-22-durable-subagent-catalog-and-list-agents.md)。
|
||||
|
||||
### Task 与取消的所有权
|
||||
|
||||
初始后台委派请求 `ctx.subagents` 启动 child 并注册其 Task。可继续提供方只有在确认本次激活的最终会话状态已持久化后，才会返回成功的 run 结果。Task 结算流程等待该结果，通过继续执行管理器的结算路径调用 `run.dispose()`，然后才记录 `TaskOutcome`；`task_kill` 中止活跃 run，其结算路径仍会 dispose 该 run。因此，终态 Task 会留下持久化 child 会话，但不会留下存活的 child agent。必需的持久性检查点若没有已安装的监听器或任一监听器失败，run 会以稳定错误码 `DURABILITY_FAILED` 拒绝，并将检查点失败保留为失败原因；管理器会记录失败的 Task，其详情说明最新状态未确认已持久化，因此恢复时可能不可用或已陈旧。
|
||||
|
||||
后续每个轮次都会创建另一个 Task。该轮 producer 持有的执行资源仅服务于这次激活，不属于 child 会话。它只会到达一次终态、只产生一个结果，也不会重新打开。Task 注册表中当前注册的那个存活 parent agent 实例仍是其 owner：dispose 该实例会取消、等待并移除其 Task。Task API 会授权 session id 与该 owner 匹配的调用方，但 id 相同的替代实例不会成为通知或资源清理目标。这一设计保留 `settleRun()` 契约，并使 Task 所拥有的存活 child 数量受并发工作量限制，而不是随历史会话数量增长。
|
||||
|
||||
用户界面适配器打开 child 会话时，只读取持久化 transcript，不会仅为展示而恢复 agent。用户输入通过继续执行管理器，启动或加入与 parent 输入相同的 Task 激活。由用户启动的 Task 会保留当前加载的精确 parent Agent 作为通知目标，`task_output` 仍是唯一结果路径。只要 Task 尚未标记为已报告，现有完成监听器最多注入一条主动通知；`kill`、终态读取或终态等待都可能将其标记为已报告，并抑制这条通知。因此，仅允许在该 parent 实例保持存活时进行用户交互。可以比 parent 存活更久、并将结论显式合并回去的用户自有会话属于[交互式 side session](../../proposed/feature/2026-07-08-interactive-side-sessions.md)，不属于这一由 Task 持有的生命周期。
|
||||
|
||||
如果没有附加 Task 控制面，`TaskService.start()` 会拒绝 producer。因此，接受 child 输入的用户界面适配器必须附加 Task 控制面，或运行于加载了 `@deepseek-ai/dsh-tool-tasks` 的部署中；仅加载 Task 服务并不足够。SDK 生成的 spawn 与 fork 组合在挂载 subagent 工具时，也会挂载 `@deepseek-ai/dsh-tasks-local` 与 `@deepseek-ai/dsh-tool-tasks`。这项依赖是 parent 和用户启动的激活共用 Task 结果、取消和通知路径所付出的代价。
|
||||
|
||||
取消始终作用于当前完整激活。如果用户消息和 parent 消息已经加入同一个轮次，任一调用方发起取消都会中止该轮次、dispose 其 run，并将对应 Task 结算为 `killed`；这些消息没有独立的结果或取消权。`followup()` 要求调用方提供信号；若在线 steering 正在等待请求准入时该信号被中止，激活自有的 controller 会被中止，以便提供方丢弃待处理消息，并且该调用仅在子 agent 完全停稳后结算。若需要独立取消，后续消息必须另起轮次，而不能加入当前轮次。
|
||||
|
||||
从持久化存储恢复的 Task 会在查找描述符或等待任何提供方操作之前，创建由本次激活持有的 `AbortController`；描述符查找、直接 parent 鉴权和描述符归并都在该 Task producer 内部执行，因此同一信号覆盖它们，其失败会将该 Task 结算为 `failed`。对于不接受信号的持久化调用，可以让底层 I/O 执行完毕；但继续执行管理器必须在每次这类 await 返回后重新检查取消状态，如已取消，之后不得开始或发布任何 child 工作。在 Agent 发布前收到中止信号时，提供方必须先回滚其创建事务并达到完全停稳状态，然后才让恢复调用以拒绝结束。Agent 发布后，提供方必须消除创建期间移交取消信号时的竞态，在返回前将同一信号附加到存活 run；之后取消会停止 child 轮次。即使提供方的恢复调用尚未返回 `SubagentRun`，`task_kill` 与对确切 owner 实例的 dispose 仍通过这条路径生效。Task 结算会等待回滚或 run dispose 完成，只有在激活完全停稳后才记录 `killed`。
|
||||
|
||||
### 活跃 run 关联
|
||||
|
||||
继续执行管理器在进程内维护 child session id 到当前 Task 的关联，并在提供方发布后将 run 填入该关联。它会在等待提供方 start 或 resume 之前安装 Task 关联，填入返回的 run，并且只在 run dispose 完成且 Task 终态发布后才移除该关联。该关联只用于让 parent 发送方和用户发送方找到同一次激活；它不是持久化 child 目录、公开的 `ManagedSubagent`、准入预留或 run 状态机。
|
||||
|
||||
对于可继续 child 的初始激活，继续执行管理器会在创建 Task 前分配稳定的 child session id，并将其作为 `SubagentProviderStartRequest.continuation` 传递；进程内 spawn 和 fork 会发布这一确切 id，而不是在内部另行分配。普通 `SubagentStartRequest` 不含 continuation 字段。后台工具返回规范的 `{ kind: 'background', taskId, subagentId }`，渲染为 `started subagent <childId> as task <taskId>`。child id 在多次激活中始终指代同一个持久化对话，Task id 则只指代当前激活。初始 Task 失败，或进程在 child 首次 flush 之前退出，都可能留下一个 **unmaterialized child**：调用方持有 child id，但不存在持久化 header 和描述符。后续按 id 的操作会报告该 id 不可用（已启动的 Task 会带着该详情失败），持久化枚举也不会列出它。
|
||||
|
||||
每个可继续 child 轮次都通过这条由 Task 支撑的路径准入。非终态 Task 是唯一受支持的存活激活；不存在激活时，其 run 已被 dispose，持久化 child 可以恢复。在路由任何按 id 的操作之前，继续执行管理器会同步将自身关联与 `ctx.agents.get(childId)` 比较。如果注册表中的 Agent 没有关联，或者它与所关联的 `run.localAgent` 不同，就属于所有权冲突：管理器会失败，而不会接管 idle Agent 或附加未受跟踪的轮次。二者均不存在时，可以从持久化存储恢复；如果检查后又有竞争方发布，仍会在 Agent 注册表的冲突边界上失败。
|
||||
|
||||
系统依据 Task 关联进行路由。运行中的 Task 通过 run 可选且提供确认语义的 `SubagentRun.steer` 功能接收在线消息。Task 不存在时，系统创建新 Task，并从持久化存储恢复 child。进程内 spawn 和 fork 会先同步要求 child 处于 `running` 状态，并拒绝已经提交结构化捕获的 child；随后调用 `Agent.steer()`，等待该消息专属的准入回执。默认循环会为每个 steering 项目提供一份归属于该消息的回执；只有在 `agent/step` 与异步提示词组装成功后，系统追加该消息、捕获不可变的请求历史并提交 `step/start`，回执才会解析为 `admitted`。终止型轮次策略、取消和 dispose（资源释放）会将待处理回执解析为 `rejected`。非终止型轮次关闭可以把待处理 steering 带入后续排队轮次，但不会确认其准入。提供方必须在调用 `Agent.steer()` 前检查存活状态，避免其 idle 路径在观察到的 run 之外启动轮次。如果查找关联之后、请求获准之前，Task 结算或终止策略率先完成，`steer()` 会拒绝，`send_message` 会报告消息未送达，而且该次调用不会改用从持久化存储恢复路径；在 Task 终态发布后重试，才可能启动下一次激活。
|
||||
|
||||
继续执行管理器不会串行化两个通过其外部路径同时争抢已停止 child 的调用方，也不会为结果产生与 dispose 之间的阶段单独建立 settling 状态。在 producer 首次 await 之前同步安装的关联，使本进程内每个 child 只准入一次激活——resume 加载期间竞争的 `followup` 会观察到待处理的激活并显式失败——而绕开该关联的发布仍会在 Agent 注册表相同会话的冲突边界上失败。发送也可能因与启动、取消、完成或清理发生竞态而失败。这些限制是明确的，而非隐藏在更大的生命周期抽象之后。
|
||||
|
||||
### 面向模型的 `send_message`
|
||||
|
||||
模型获得一个由 `SubagentService.followup()` 支撑的 `send_message(subagent_id, message)` 工具，与 `Agent` 上的意图动词一致。该服务操作负责在 steering 与恢复之间编排；它不同于 run 的 `SubagentRun.steer?()`，后者只能向已活跃的 run 发送消息。工具本身不执行生命周期路由。该工具将后续消息的来源标记为 `{ kind: 'coordinator', senderSessionId: parent.id }`，并转发 `{ source, signal }`；服务要求在一个选项对象中同时提供这两项信息。来源会贯穿在线 steering 和 cold resume 两条路径，而取消只控制尚未完成的在线投递等待，因为 cold resume Task 会立即返回，并自行负责后续取消。child 模型收到的仍是普通的 user role 内容，而持久化的来源信息可防止模型生成的后续消息被归类为直接用户输入。用户适配器则提供 `{ kind: 'user' }` 及其交互信号。该工具位于单独加载的 `@deepseek-ai/dsh-tool-subagent-control` 包中，因此按提供方绑定的 `@deepseek-ai/dsh-tool-subagent` 实例可以继续为 spawn、fork 或 ACP 注册不同的委派工具，而不会重复注册全局控制工具。
|
||||
|
||||
- 如果 child 存在运行中的 Task 并支持在线消息，服务会调用 `run.steer(message, source)` 并返回现有 task id；它不会创建新 Task。
|
||||
- 如果 child 没有运行中的 Task，`send_message` 会创建新 Task，使用该消息从持久化存储恢复会话，并返回新的 task id。
|
||||
- 如果活跃提供方无法接收在线消息、带确认语义的 steering 在准入竞态中失败，或 Task 关联之外存在存活 child，`send_message` 会失败，而不会静默启动、恢复或接管未受跟踪的轮次。
|
||||
|
||||
服务结果将路由标识为 `steered` 并携带现有 task id，或标识为 `started` 并携带新的 task id。失败结果会明确说明消息未送达。面向模型的工具会呈现这些差异，让调用方能够观察由时序决定的实际路由。
|
||||
|
||||
发送到现有 run 的消息没有独立结果，其效果体现在当前 Task 的最终结果中。启动的后续轮次具有新 Task 的结果，并使用现有 `task_output` 读取路径。subagent 层不会再注入第二份完成通知。
|
||||
|
||||
用户输入使用同一个 `followup` 操作。UI 可以展示 child transcript 和当前 Task 状态，取消操作则以已加载 parent 作为调用方访问 Task 服务。工具 schema 与 UI 适配器消费同一个服务契约，不建立彼此独立的执行路径。
|
||||
|
||||
### 持久化 child handle 与从持久化存储恢复
|
||||
|
||||
继续执行管理器在创建 Task 前，通过 seam 的 `snapshotSubagentDescriptor()`（基于 [`snapshotJsonValue`](../../../../packages/core/session/src/json.ts) 构建）对每项描述符输入建立快照；这一边界与 Agent 消息现有的分离式无损 JSON 边界一致。作用于 child 作用域的 setup contribution——由进程内驱动前置安装的一次性 `agent/prompt-submit` 监听器——会在下游 prompt admission 能够阻止请求或抛出异常之前追加一个对模型隐藏的 `subagent/descriptor` 事件。admission 获准后才会开启 child 的初始轮次；admission 被拒绝时，描述符会作为轮次前的仅日志事实保留，并由该 activation 最终的必需检查点持久化。该事件不携带 `surfaceOp`，不进入模型历史，并在压缩替换 surface 历史时继续保留。只有在加载已知 child id 对应的 child 会话后，能在该 child 自身的后缀中（`seedLength` 之后，因此 fork seed 不会泄露祖先的描述符）得到受支持的描述符，且会话 header 将调用方标识为直接 parent 时，该 id 才可恢复。
|
||||
|
||||
版本化描述符的可继续分支（[descriptor.ts](../../../../packages/subagent/subagent/src/descriptor.ts) 中的 `SUBAGENT_DESCRIPTOR_VERSION`）携带 `mode: 'continuable'`、subagent 提供方名称、已解析的 child `agentOptions.provider` 和 `agentOptions.model`，以及可选的 `persona` 与 `toolFilter`。它不会对可通过声明合并扩展的 `AgentOptions` 对象建立快照：与此无关的扩展值不会仅因无法表示为 JSON 而导致继续执行失败。描述符会特意省略 `subagentDepth`；从持久化存储恢复时，系统依赖持久化 header 中的 `delegationDepth`，而不根据描述符重建深度。`outputSchema` 属于单次激活的结果契约，不属于持久化 child 组合配置。child header 仍是 child id、`cwd`、`parentSession`、`seedLength` 和 `delegationDepth` 的权威信息，持久化 child transcript 则负责保存 fork seed 和后续历史。[`delegationDepthOf()`](../../../../packages/subagent/subagent/src/index.ts) 会在 header 值和运行时值中取最大值，因此重建后的运行时选项可以加深持久化值，但绝不能降低它，恢复后的 child 无法重新获得顶层委派预算。
|
||||
|
||||
从持久化存储恢复不能依赖 `SubagentRun` 的可选方法，因为该 run 已被 dispose，并且进程重启后不会保留。run 表示一次可 dispose 的激活，只暴露作用于当前激活的操作。`SubagentRun.steer?()` 这一名称明确指代提供确认语义且仅适用于在线消息的功能，以免该功能与服务编排或面向模型的工具混淆。
|
||||
|
||||
内部继续执行管理器的恢复路径会加载已知 child 会话、归并其描述符、根据持久化的 `parentSession` 鉴权，并在其创建的 Task 内部运行。它通过私有服务闭包传递完全解析的 `SubagentProviderResumeRequest`，其中包含由 Task 持有的取消信号；该闭包只负责在检查提供方功能后进行分发，并执行 `start` 所使用的普通 run 生命周期观察。选中的 `SubagentProvider.resume?()` 负责传输相关的重建（进程内：在当前加载的 parent 作用域下执行 `parent.ctx.agents.resume`），并返回一个新 run。提供方是否存在该方法本身就是继续执行功能，无需额外功能标志。`SubagentService.followup()` 在关联 run 的 `steer?()` 操作与该持久化恢复路径之间做出选择。私有的提供方分发与提供方本身都不会枚举持久化 child 或关联 Task。
|
||||
|
||||
后台工具会在调用 `TaskService.start()` 前校验描述符输入并建立快照。同步校验失败会拒绝工具调用，且不会创建 Task。除此之外，工具会立即返回 child id 和 Task id，不等待 child 发布或描述符持久化完成。进程内可继续提供方会在 child 进入 idle 后、读取结果之前执行最终的 `SessionStore.flush()`；返回 `true` 表示至少有一个持久性监听器参与，返回 `false` 表示必需的检查点失败，而拒绝则携带监听器失败。此操作会在 child 仍存活时重试循环中失败的检查点。如果最终确认失败，提供方会拒绝而不返回未经确认的输出，继续执行管理器会 dispose 该 run，已经创建的 Task 会结算为 `failed`，其详情包含持久性诊断。最终确认期间发生取消时，尚未发布的激活结果由取消操作接管；即使 child 轮次已记录为完成，或之后的检查点失败，也不能取代 Task 的 `killed` 结果。前台一次性运行仍保留循环仅尽力执行检查点的行为。进程内 spawn 和 fork 会在当前已加载的 parent 作用域下重建组合配置。恢复 fork 时只加载 child 自己的持久化 transcript，其中已经包含初始创建时捕获的已完成轮次前缀；系统绝不会再次 fork parent 更新后的历史。恢复 parent 不会立即恢复其 child。
|
||||
|
||||
TODO（ACP 继续执行）：将远端 ACP session id 作为提供方专用描述符数据持久化，并实现 `AcpProvider.resume?()`，依次执行 spawn、initialize、`loadSession` 和 prompt。初始 ACP run 必须检查 `initialize.agentCapabilities.loadSession`，恢复后的每个进程必须使用同一个持久化后端；`loadSession` 回放的历史消息不得计入新激活的输出。由于 ACP 的加载支持是按 child 协商的，不能仅根据提供方是否存在该方法来确定，因此该后续工作还必须定义 start 结果如何声明单个 child 支持继续执行，之后才能将 ACP child 写入持久化目录。
|
||||
|
||||
### 结果与通知所有权
|
||||
|
||||
每次可继续 child 激活都恰好拥有一个 Task 和一个 `TaskOutcome`，无论第一条消息由 parent 还是用户提供。只要 Task 尚未标记为已报告，通用 Task 报告契约最多会向保留的 parent owner 注入一条主动完成通知；读取、等待和取消都可能抑制该通知。发送到运行中激活的消息会加入该激活，不会创建第二个 Task 或第二份结果。child transcript 是面向用户的详细记录；Task 输出是面向 parent 的最终结果。
|
||||
|
||||
Task 记录和活跃 run 关联都位于进程内。持久化使 child 会话可在重启后恢复，但不会恢复中断的 Task、其结果或通知。持久化 Task 恢复属于另一个问题。
|
||||
|
||||
## 已考虑的替代方案
|
||||
|
||||
**在 Task 结算后保留所有后台 child。** 这是 Codex 风格的常驻会话模型：发送后续消息成本较低，但历史 child 会持续占用 agent 作用域、会话内存、监听器和提供方资源，直至显式常驻数量上限或淘汰策略将其移除。逐激活 dispose 使用持久化作为继续执行边界，同时保留当前的资源上限。
|
||||
|
||||
**允许用户轮次不使用 Task。** parent 消息加入此类轮次后，没有对应的 Task 结果或完成通知；UI 取消对 parent 所发消息的影响也不明确。让每次激活都拥有一个 Task，可使完成与取消成为 child 轮次的属性，而不是初始调用方的属性。
|
||||
|
||||
**在 child 会话整个生命周期内复用一个 Task。** 终态 Task 无法自然地再次进入运行状态，一个结果也无法表示多个轮次。每次激活创建新 Task 可以保留通用 Task 契约。
|
||||
|
||||
**为每条消息创建 Task。** 发送到现有 run 的消息会加入已有轮次，不产生独立的最终结果；为这类消息创建 Task，会重复当前 Task，或报告一个它并不拥有的结果。只有启动新激活的消息才会创建 Task。
|
||||
|
||||
**拆分 `send_message` 与 `follow_up`。** 两个独立的投递操作会向模型暴露实现状态差异，却无法消除 child 已停止时的竞态。单一操作采用 Claude Code 模型：向运行中的工作发送消息，或恢复一个由新 Task 支撑的生命周期。
|
||||
|
||||
**在已 dispose 的 run 上保留 `resume?()`。** 如果仅为调用 `resume()` 而保留已 dispose 的 `SubagentRun`，旧 run 会同时充当持久化 child handle，而且进程重启后无法重建该对象。由服务分发、提供方重建，可明确表达持久化边界。
|
||||
|
||||
**将控制编排放在 `SubagentService` 上。** 这一服务放置方案即[服务合并决策](../simplification/2026-07-26-merge-subagent-control-service.md)；[意图操作细化](../simplification/2026-07-27-intent-named-subagent-continuation-operations.md)将提供方 start／resume 分发的复用限制在服务内部，同时将可选的 Task 与持久化工作隔离在注入的内部管理器中。
|
||||
|
||||
**增加显式激活阶段。** 公开的 `starting`／`running`／`settling` 状态可以准确描述准入和清理，但会引入实现本身并不需要的生命周期协议。同步安装关联无需暴露这些阶段，即可消除进程内重复的 cold resume。
|
||||
|
||||
## 测试
|
||||
|
||||
- `packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts` 固定可继续执行的持久性边界：缺少 flush 监听器、flush 监听器已脱离或监听器持续失败时，均会以 `DURABILITY_FAILED` 拒绝；循环检查点的瞬时失败可在最终确认成功后继续完成，发生取消时最终检查点无论成功还是失败都由取消优先决定结果，resume 同样会确认持久性，而前台运行仍采用尽力而为策略。`packages/subagent/subagent/tests/continuation.spec.ts` 以无密钥方式驱动真实栈（agent loop、JSONL 持久化、spawn／fork 提供方、Task 服务和 `ctx.subagents`）：初始及恢复后的激活都会创建新 Task，并在进入终态前 dispose 各自的 run；描述符事件位于轮次前、对模型隐藏、带版本、在服务分配的 child id 下持久化，并在初始 prompt admission 阻止请求或抛出异常时仍保留；取消、steering、cold follow-up、授权、所有权冲突与 resume 竞态保留上述契约。
|
||||
- `packages/subagent/tool-subagent-control/tests/tool-subagent-control.spec.ts` 固定 `send_message` 的 schema、coordinator 来源标记、两种路由渲染、未送达失败、无 agent 时的拒绝，以及 HMR（热模块替换）dispose。
|
||||
- `packages/subagent/tool-subagent/tests/tool-subagent.spec.ts` 覆盖配置的后台路由：可继续模式要求提供方可恢复，并在不要求 `send_message` 的情况下返回两个 id；即使提供方可以恢复，一次性模式仍保持普通的 Task 确认消息。
|
||||
- `packages/sdk/helper/tests/project.spec.ts` 固定生成的 spawn 与 fork 组合中的 Task 服务及面向模型的 Task 控制工具。
|
||||
- 无密钥 ACP 快照场景 `subagent-continuable`（examples/acp-agent）固定模型可见的 transcript：双 id 确认消息、最终持久性确认失败（该失败通过 `task_output` 呈现，且不包含未经确认的 child 输出），以及一次 `send_message` 后续操作——其已启动的 Task 会带着「id 不可用」失败。
|
||||
|
||||
## 影响
|
||||
|
||||
- 每次完成结算后的后续轮次都需要承担持久化加载和作用域 setup 成本；作为交换，存活 child 的数量受并发工作量限制，而不是随历史会话数量增长。持久化不可用或存储的组合配置无法重建时，可继续 child 的创建会明确失败。
|
||||
- 两个调用方仍可能通过继续执行管理器外部的路径争抢已停止的 child。Agent 注册表会阻止相同会话的重复发布；失败的 Task 会失败，且其消息不会送达。消息也可能与取消、终态状态发布或 run dispose 发生竞态。准入不承诺原子或恰好执行一次；在进程内同步安装的关联无需公开生命周期状态机，即可通过 `followup` 消除重复的 cold resume。
|
||||
- 通过普通 Agent API 驱动可继续 child 会绕过其 Task 关联。`ctx.subagents` 会将该存活 child 视为所有权冲突并拒绝；适配器必须在不加载 Agent 的情况下展示持久化 transcript，并通过 `SubagentService.followup()` 提交用户输入。
|
||||
- 活跃 run 关联只能协调一个运行时。多个进程同时恢复时不会串行化；此类部署需要持久化层的租约或 compare-and-set 操作。
|
||||
- 用户交互要求作为 owner 的那个精确 parent Agent 实例保持存活，因为 dispose owner 会取消并移除其 Task。用户交互还要求附加 Task 控制面。若要单独与 child 交互，后续必须将 Task 访问所有权与持久化通知目标分离。
|
||||
- 后台工具会在 child 发布和描述符持久化之前返回 child id 和 Task id。启动失败、最终持久性确认失败，或进程在 child 首次 flush 之前退出，都会使 Task 失败，并可能留下 unmaterialized 或陈旧的 child id；按 id 的控制操作会将缺失状态报告为不可用，而不会追溯修改工具确认消息。
|
||||
- 将显式组合字段持久化到 child 日志后，其无损 JSON 与兼容性契约便成为恢复契约的一部分。后续如需支持其他组合配置输入，必须明确更改描述符版本，不能隐式持久化可通过声明合并扩展的 `AgentOptions` 字段。
|
||||
- Task 记录和活跃 run 关联位于进程内，而 child 会话具有持久性。重启会恢复会话，但不会恢复进行中的工作或其 Task 通知。
|
||||
@@ -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/2026-07-22-docked-web-goal-bar.md
|
||||
2026-07-22-docked-web-goal-bar.md: f014da61d2fa0bf25121c040dae99354ab15de9d
|
||||
2026-07-22-docked-web-goal-bar.zh.md: f62c6efbb2d330fb7d5ab74138eb781f1a1bc06c
|
||||
2026-07-22-docked-web-goal-bar.md: 21f200f165acdf370a5896acb8f54afe33a4ee99
|
||||
2026-07-22-docked-web-goal-bar.zh.md: eb8e3edda54207b06e25812a38f969e74f342c34
|
||||
|
||||
@@ -10,9 +10,9 @@ The web UI had no goal surface at all: the goal stack shipped with model tools,
|
||||
|
||||
## Decision
|
||||
|
||||
`GoalBar` (`packages/client/ui-goal/src/client/GoalBar.tsx`) is a props-driven, self-contained component registered first in the composer's input-dock list. Its standalone 752px card follows the composer's horizontal geometry, and every visible state shares one fixed 36px height so switching phases never resizes it. Loading (`goal === undefined`), absent (`goal === null`), and `phase === 'complete'` render nothing — a completed goal is history, not chrome.
|
||||
`GoalBar` (`packages/client/ui-goal/src/client/GoalBar.tsx`) is a props-driven, self-contained component registered second in the composer's input-dock list, after Todo and before Queue. Its standalone 752px card follows the composer's horizontal geometry, and every visible state shares one fixed 36px height so switching phases never resizes it. Loading (`goal === undefined`), absent (`goal === null`), and `phase === 'complete'` render nothing — a completed goal is history, not chrome.
|
||||
|
||||
Visibility drives the label and actions: active shows "Ongoing Goal" with pause/edit/clear; paused shows "Paused Goal" and swaps pause for a resume icon button; blocked shows "Blocked Goal" and carries `blockedReason.message` as the strip's `title` tooltip. Goal creation lives on the `/goal` command, not in the bar. The pencil swaps the strip for an inline edit form prefilled with the current objective: Enter or the check button saves through `GoalBarActions.onEdit(objective)`, Esc cancels, and an all-whitespace objective keeps save disabled. The form closes only when the edit succeeds; a failure preserves the draft and displays the error in the bar. Resume and clear failures are displayed there as well. Clear otherwise calls `onClear` directly with no confirmation — a clear keeps a durable tombstone, so nothing is unrecoverable. An effect keyed on the goal's id drops the edit form when the goal's identity changes, so a surviving draft can never be written over the goal that replaced it.
|
||||
Visibility drives the label and actions: active shows "Ongoing Goal" with pause/edit/clear; paused shows "Paused Goal" and swaps pause for a resume icon button; blocked shows "Blocked Goal" and carries `blockedReason.message` as the strip's `title` tooltip. Goal creation lives on the `/goal` command, not in the bar. The pencil swaps the strip for an inline edit form prefilled with the current objective: Enter or the check button saves through `GoalBarActions.onEdit(objective)`, Esc cancels, and an all-whitespace objective keeps save disabled. The form closes only when the edit succeeds; a failure preserves the draft and displays the error in the bar. Resume and clear failures are displayed there as well. Clear otherwise calls `onClear` directly with no confirmation — a clear keeps a durable tombstone, so nothing is unrecoverable. Every mutation first acquires a synchronous component-local single-flight latch because React's pending-state render cannot close the same-frame click window. A successful clear also suppresses that exact goal id immediately while the authoritative null projection catches up, so an acknowledged tombstone cannot leave a stale clear control that submits `GOAL_NOT_FOUND`; a failure releases the latch and remains retryable. An effect keyed on the goal's id resets this transient state and drops the edit form when the goal's identity changes, so neither a cleared marker nor a surviving draft can affect the replacement goal.
|
||||
|
||||
`GoalBarActions` lives in ui-goal's slot contract (`packages/client/ui-goal/src/client/slots.ts`) and carries exactly the rendered verbs: `onEdit`/`onPause`/`onResume`/`onClear`. Each callback asynchronously returns an explicit success/failure result so `GoalBar` owns its transitions and error display. `apply.ts` wires them to the runtime session methods; the runtime session resolves the current goal's compare-and-set ref internally, so the UI passes no ref.
|
||||
|
||||
@@ -22,7 +22,7 @@ The strip's background is `--dsw-alias-interactive-bg-hover` rather than the moc
|
||||
|
||||
## Testing
|
||||
|
||||
`packages/client/ui-goal/tests/goalbar.spec.tsx` pins the behavior through props alone: loading/absent/complete render nothing, the active strip renders label/objective and fires clear, the edit form prefills, rejects empty, saves on Enter, cancels on Esc, and resets when the goal's identity changes, the active strip fires pause, the paused strip fires resume, and the blocked strip exposes the reason tooltip. Component failure-path cases prove that a failed edit preserves its draft and that edit/resume/clear errors remain visible in the bar. The skeleton specs mount `ConversationRoot` with and without `goalActions`; the undefined case is seeded with an active goal, so the missing gate — not the missing goal — is what hides the strip. Runtime session specs pin the folded-error results, the live-only in-flight-plus-trailing refetch, and the stale-read guard. A keyless real-browser smoke boots the assembled application through `boot → RPC → runtime → GoalBar` and records an inline snapshot of the rendered label, objective, and actions.
|
||||
`packages/client/ui-goal/tests/goalbar.spec.tsx` pins the behavior through props alone: loading/absent/complete render nothing, the active strip renders label/objective and fires clear, rapid same-frame clear clicks dispatch once and a successful clear hides before projection convergence, the edit form prefills, rejects empty, saves on Enter, cancels on Esc, and resets when the goal's identity changes, the active strip fires pause, the paused strip fires resume, and the blocked strip exposes the reason tooltip. Component failure-path cases prove that a failed edit preserves its draft and that edit/resume/clear errors remain visible and retryable in the bar. The skeleton specs mount `ConversationRoot` with and without `goalActions`; the undefined case is seeded with an active goal, so the missing gate — not the missing goal — is what hides the strip. Runtime session specs pin the folded-error results, the live-only in-flight-plus-trailing refetch, and the stale-read guard. A keyless real-browser smoke boots the assembled application through `boot → RPC → runtime → GoalBar` and records an inline snapshot of the rendered label, objective, and actions.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -34,6 +34,7 @@ The strip's background is `--dsw-alias-interactive-bg-hover` rather than the moc
|
||||
## Consequences
|
||||
|
||||
- Goal presence in the web UI is a standalone composer-context strip: sparkle, phase label, truncated objective, and pause/edit/clear (resume replacing pause when paused) — the browser client's first goal surface.
|
||||
- Goal mutations are single-flight within the component; a successful clear hides its exact goal immediately while projection delivery converges, preventing duplicate CAS errors without making transient UI state authoritative.
|
||||
- The runtime session exposes the goal verbs over RPC with folded transport errors, and refreshes the snapshot's goal on open and on live goal-change meta (coalesced, guarded against stale reads).
|
||||
- Objective editing is reachable from the UI for the first time, through `goal.edit` with the runtime-owned ref; complete remains available to other surfaces (`/goal`, model tools).
|
||||
- `goal === null` renders nothing; the composer carries no persistent create affordance — creation is the `/goal` command's job.
|
||||
|
||||
@@ -10,9 +10,9 @@ Web UI 此前没有任何目标相关的界面：目标栈已随模型工具、T
|
||||
|
||||
## 决策
|
||||
|
||||
`GoalBar`（`packages/client/ui-goal/src/client/GoalBar.tsx`）是一个由 props 驱动的自包含组件，在 composer 的 input-dock 列表中注册为第一个条目。它采用独立的 752px 卡片，遵循 composer 的水平几何；所有可见状态均使用固定的 36px 高度，切换阶段不会改变尺寸。加载中（`goal === undefined`）、无目标（`goal === null`）和 `phase === 'complete'` 时不渲染任何内容：已完成的目标是历史记录，不是常驻界面元素。
|
||||
`GoalBar`（`packages/client/ui-goal/src/client/GoalBar.tsx`）是一个由 props 驱动的自包含组件，在 composer 的 input-dock 列表中注册为第二个条目，位于 Todo 之后、Queue 之前。它采用独立的 752px 卡片，遵循 composer 的水平几何；所有可见状态均使用固定的 36px 高度，切换阶段不会改变尺寸。加载中（`goal === undefined`）、无目标（`goal === null`）和 `phase === 'complete'` 时不渲染任何内容：已完成的目标是历史记录，不是常驻界面元素。
|
||||
|
||||
可见性决定标签和操作：active 状态显示 "Ongoing Goal" 并提供暂停／编辑／清除；paused 状态显示 "Paused Goal"，把暂停换成一个恢复图标按钮；blocked 状态显示 "Blocked Goal"，并把 `blockedReason.message` 作为横条的 `title` 悬浮提示。创建目标的入口在 `/goal` 命令上，不在横条里。铅笔图标把横条切换为内联编辑表单，预填当前目标内容：Enter 或勾选按钮通过 `GoalBarActions.onEdit(objective)` 保存，Esc 取消，目标内容全为空白字符时保存按钮保持禁用。编辑成功后表单才会关闭；编辑失败时保留草稿，并在横条中显示错误。恢复和清除失败也显示在横条中。除此之外，清除直接调用 `onClear`，不做确认——清除会保留 durable 墓碑，没有不可恢复的损失。一个以目标 id 为键的 effect 会在目标身份变化时丢弃编辑表单，因此存留的草稿绝不可能覆盖掉替换它的新目标。
|
||||
可见性决定标签和操作：active 状态显示 "Ongoing Goal" 并提供暂停／编辑／清除；paused 状态显示 "Paused Goal"，把暂停换成一个恢复图标按钮；blocked 状态显示 "Blocked Goal"，并把 `blockedReason.message` 作为横条的 `title` 悬浮提示。创建目标的入口在 `/goal` 命令上，不在横条里。铅笔图标把横条切换为内联编辑表单，预填当前目标内容：Enter 或勾选按钮通过 `GoalBarActions.onEdit(objective)` 保存，Esc 取消，目标内容全为空白字符时保存按钮保持禁用。编辑成功后表单才会关闭；编辑失败时保留草稿，并在横条中显示错误。恢复和清除失败也显示在横条中。除此之外，清除直接调用 `onClear`，不做确认——清除会保留 durable 墓碑，没有不可恢复的损失。每次变更都会先取得一个同步的组件内 single-flight 锁，因为 React 的 pending 状态渲染无法关闭同一帧内的点击窗口。清除成功后还会立即抑制该 goal id，直到权威的 null 投影追上，因此已确认的墓碑不会留下陈旧的清除控件并再次提交 `GOAL_NOT_FOUND`；失败则释放锁，并且仍可重试。一个以目标 id 为键的 effect 会在目标身份变化时重置瞬态状态并丢弃编辑表单，因此无论已清除标记还是存留草稿，都不会影响替换目标。
|
||||
|
||||
`GoalBarActions` 位于 ui-goal 的槽位契约（`packages/client/ui-goal/src/client/slots.ts`），只携带实际渲染的动词：`onEdit`/`onPause`/`onResume`/`onClear`。每个回调都会异步返回显式成功／失败结果，因此 `GoalBar` 自行负责界面转换和错误显示。`apply.ts` 把它们接到运行时会话方法上；运行时会话在内部解析当前目标的 compare-and-set ref，因此 UI 不传 ref。
|
||||
|
||||
@@ -22,7 +22,7 @@ Web UI 此前没有任何目标相关的界面：目标栈已随模型工具、T
|
||||
|
||||
## 测试
|
||||
|
||||
`packages/client/ui-goal/tests/goalbar.spec.tsx` 仅通过 props 固定这些行为：加载中／无目标／已完成时不渲染；active 横条渲染标签和目标内容并触发清除；编辑表单预填内容、拒绝空值、按 Enter 保存、按 Esc 取消，并在目标身份变化时重置；active 横条触发暂停；paused 横条触发恢复；blocked 横条暴露原因悬浮提示。组件失败路径用例证明编辑失败时保留草稿，并且编辑／恢复／清除错误持续显示在横条中。skeleton 规格测试分别挂载带与不带 `goalActions` 的 `ConversationRoot`；未定义的情形预置了一个 active 目标，因此隐藏横条的是缺失的挂载门，而不是缺失的目标。运行时会话规格测试固定了折叠错误结果、仅 live 的执行中读取加尾随读取，以及陈旧读取守卫。一个无密钥真实浏览器冒烟测试通过 `boot → RPC → runtime → GoalBar` 启动组装后的应用，并以内联快照记录渲染出的标签、目标内容和操作。
|
||||
`packages/client/ui-goal/tests/goalbar.spec.tsx` 仅通过 props 固定这些行为：加载中／无目标／已完成时不渲染；active 横条渲染标签和目标内容并触发清除；同一帧内快速连续点击清除只会分发一次，清除成功后横条会在投影收敛前隐藏；编辑表单预填内容、拒绝空值、按 Enter 保存、按 Esc 取消，并在目标身份变化时重置；active 横条触发暂停；paused 横条触发恢复；blocked 横条暴露原因悬浮提示。组件失败路径用例证明编辑失败时保留草稿，并且编辑／恢复／清除错误持续显示在横条中且可重试。skeleton 规格测试分别挂载带与不带 `goalActions` 的 `ConversationRoot`；未定义的情形预置了一个 active 目标，因此隐藏横条的是缺失的挂载门，而不是缺失的目标。运行时会话规格测试固定了折叠错误结果、仅 live 的执行中读取加尾随读取，以及陈旧读取守卫。一个无密钥真实浏览器冒烟测试通过 `boot → RPC → runtime → GoalBar` 启动组装后的应用，并以内联快照记录渲染出的标签、目标内容和操作。
|
||||
|
||||
## 考虑过的替代方案
|
||||
|
||||
@@ -34,6 +34,7 @@ Web UI 此前没有任何目标相关的界面：目标栈已随模型工具、T
|
||||
## 后果
|
||||
|
||||
- Web UI 中目标的存在形式是独立的 composer 上下文横条：闪光图标、阶段标签、截断的目标内容，以及暂停／编辑／清除（暂停时恢复取代暂停）——这是浏览器客户端的第一个目标界面。
|
||||
- 目标变更在组件内走 single-flight；清除成功后会在投影投递收敛期间立即隐藏与其 id 完全匹配的目标，既防止重复 CAS 错误，又不会把瞬态 UI 状态视为权威。
|
||||
- 运行时会话通过 RPC 暴露目标动词并折叠传输层错误，且在打开时和 live 目标变更元数据到达时刷新快照中的目标（合并拉取，带陈旧读取守卫）。
|
||||
- 目标内容首次可以从 UI 编辑，经由 `goal.edit`，ref 由运行时持有；完成对其他界面（`/goal`、模型工具）照常可用。
|
||||
- `goal === null` 时不渲染任何内容；输入框不提供常驻的创建入口，创建是 `/goal` 命令的职责。
|
||||
|
||||
@@ -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/2026-07-22-durable-subagent-catalog-and-list-agents.md
|
||||
2026-07-22-durable-subagent-catalog-and-list-agents.md: 0dd7eebac74689004014248c7178dba540ef4662
|
||||
2026-07-22-durable-subagent-catalog-and-list-agents.zh.md: 33b0296cf9914d1975fb1dc84564b498a09bd511
|
||||
@@ -0,0 +1,109 @@
|
||||
# Agent Note: Durable subagent catalog and list_agents
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-22-durable-subagent-catalog-and-list-agents.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
Continuable background subagents expose a stable child id and persist reconstruction data in that child's session, so `send_message` can resume a known child without any listing operation. Discovery has two consumers with different needs: a UI may show both one-shot work and continuable conversations, while the model should receive only children on which `send_message` is meaningful. The durable Session and Activation design is owned by [continuable subagents](../../implemented/feature/2026-07-28-continuable-subagent-conversations.md); this note owns the shared durable inventory and the model-facing projection.
|
||||
|
||||
Enumeration must cross-check immutable session lineage, descriptor validity, and the live-preferred session corpus without loading or resuming an Agent merely to display it. Trace lineage supplies candidates but cannot distinguish an ordinary session fork from a subagent, so the child log needs durable classification. The contract must also define how lifecycle mode, missing or corrupt records, deletion, unsupported versions, and repeated child-log loads affect service and tool consumers.
|
||||
|
||||
## Decision
|
||||
|
||||
Parent-to-child enumeration is a service capability with consumer-specific projections. `SubagentService.listChildren(parentSessionId: SessionId)` ([subagent/src/index.ts](../../../../packages/subagent/subagent/src/index.ts)) does the following:
|
||||
|
||||
- use `ctx.sessionQuery.traceSession(parentSessionId)` to obtain the parent's direct live-preferred child sessions;
|
||||
- read and validate each candidate's `subagent/descriptor` event without activating the child;
|
||||
- silently omit candidates without a descriptor, and omit a candidate that becomes unavailable or has a corrupt or unsupported descriptor with a per-child diagnostic;
|
||||
- expose every local session-backed subagent whose supported valid descriptor carries a durable creation `label` and `mode`, regardless of whether its provider is currently registered;
|
||||
- report corpus activity separately as `running` or `inactive`, without implying completion or resumability;
|
||||
- return every resulting child in stable `createdAt` ascending, child-id ascending order.
|
||||
|
||||
Every ordinary local start receives a `one-shot` descriptor with an optional caller-owned display label, while the continuation manager persists a labeled `continuable` descriptor containing its additional reconstruction fields. The model-facing delegation tool already owns a short `description` and supplies it for one-shot display; lower-level callers such as workflows need not invent presentation metadata. The model-facing `list_agents` adapter filters the service result to continuable children and maps `inactive` to its existing `complete` presentation; a UI can consume both modes and choose an id-based fallback for unlabeled one-shot history. Descriptor persistence, by-id lookup, direct-parent authorization, and provider-independent cold resume remain owned by the implemented Activation contract. Listing consumes those facts but cannot weaken them or invent a second descriptor representation.
|
||||
|
||||
### Enumeration decision
|
||||
|
||||
The first implementation consumes `ctx.sessionQuery.traceSession(parentSessionId)` and considers only the trace's first-level descendants. The target may be live or persisted; tracing the logical corpus does not load or resume an Agent. Session query already merges `ctx.sessions` with `ctx.sessionPersistence` using live precedence, preserves immutable-header consistency, derives direct-child lineage from `SessionHeader.parentSession`, and sorts siblings by `createdAt` ascending and child id ascending. `listChildren()` does not reproduce that corpus logic or inspect the continuation manager's process-local Activation map.
|
||||
|
||||
Corpus construction precedes per-child descriptor inspection. A failure while building the initial trace, including persistence listing failure, a live/persisted header conflict anywhere in the observed corpus, or invalid target lineage, fails the whole `list_agents` call because no trustworthy candidate set exists. Only failures after a successful trace are isolated to one candidate; "corrupt child" in that per-child contract therefore means corrupt loaded event surface or descriptor data, not a corpus-level header conflict.
|
||||
|
||||
Session lineage is broader than subagent identity: an ordinary `ctx.sessions.fork()` also creates a direct child. The session header gains no `kind` discriminator; each candidate must instead contain exactly one valid `subagent/descriptor` event in its own suffix. `SubagentService.start()` resolves `{ mode: 'one-shot', provider, label? }` before ordinary provider dispatch, while the continuation manager snapshots and seeds `{ mode: 'continuable', ...composition }` during initial child creation. The local in-process one-shot driver appends its resolved descriptor only during initial creation, and cold resume appends no further descriptor; a second event is corruption rather than evidence of another Activation. Agent creation is the one-shot publication boundary: a rejection means no child was published, while prompt, turn, cancellation, and infrastructure outcomes after publication settle through the returned run without hiding its id. The descriptor event is the sole evidence that a traced child is a session-backed subagent. A candidate without it is an ordinary fork, a remote child without a local session record, or another non-subagent session and is omitted without a diagnostic.
|
||||
|
||||
The published logical record is also the activity source: `SessionRecord.live` means `running`, while `live: false, persisted: true` means `inactive`. Activity comes directly from the trace and causes no additional child-log load. `inactive` encodes neither successful completion nor resumability: it may describe settled one-shot history or a continuable child for which `send_message` can materialize another Activation. Conversely, `running` says only that the session is live: a live continuable Agent outside the continuation manager's matching Activation still appears as `running`, but `send_message` rejects it as an ownership conflict. A child is not visible before its session is published, and no process-local Activation entry is added as a second candidate or activity source. Listing is a snapshot that may race publication, disposal, or a later message; `send_message` remains the authoritative delivery-time operation.
|
||||
|
||||
The subagent service keeps `sessionQuery` optional so start and follow-up remain available without it. Its public `listChildren(parentSessionId: SessionId)` method resolves the optional service and dynamically loads the optional session-query runtime only when called; ordinary subagent imports, start, and follow-up therefore do not evaluate that package. Listing belongs directly to `SubagentService`: it interprets the query's lineage, events, and live state without resolving the Activation-based continuation manager or consulting Agent registrations, Activations, or providers, so a deployment with sessions, `subagents`, and `sessionQuery` can list even when `agents` is absent. The method throws `SubagentError` with stable code `SUBAGENT_CONTROL_SESSION_QUERY_UNAVAILABLE` before loading the runtime or doing query work when the query service is absent. `@deepseek-ai/dsh-tool-subagent-control` exports separately loadable tool plugins: the `send_message` adapter requires only `subagents`, while the `list_agents` adapter requires both `subagents` and `sessionQuery` at load. A deployment may therefore use `send_message` without installing or loading session query; the list-tool fiber remains inactive until the required service is available, while another direct service consumer receives the same explicit call-time contract.
|
||||
|
||||
`listChildren(parentSessionId, signal?)` forwards the caller's signal to `traceSession()` and the conditional exact `readEvent()` operation. `listEvents()` has no cancellation parameter, so the listing path checks the signal before and after that await and after each candidate settles. If any query operation rejects after the signal aborts, the service normalizes the result to `SubagentError` with stable code `CANCELLED`; a backend abort error or a diagnostic-mapped query error cannot escape or become a successful partial listing.
|
||||
|
||||
This descriptor-read path is the correctness baseline, not a claim that work is linear only in the number of direct children. Let D be the number of direct-child candidates, C be the number of persisted sessions scanned by each persistence listing, and L_i be the size of candidate i's full log. One corpus trace is followed by `sessionQuery.listEvents(childId)` for every candidate. A candidate with no descriptor is omitted, and one with multiple descriptors is diagnosed without another read; only a candidate with exactly one descriptor is loaded again through `sessionQuery.readEvent({ sessionId: childId, seq })`. The read must return the same immutable session header observed by the trace, including the direct-parent relationship, and its target must still be the located descriptor event; a mismatch is per-child corruption. In the persisted-only worst case, each exact read repeats `persistence.list()`, loads the full child log, and clones its events, for O(D × C + Σ L_i) work up to constant factors; a candidate with exactly one descriptor pays those costs twice, while other candidates pay them once. A live candidate similarly takes one detached in-memory snapshot of its full log, or two when its descriptor is read. Session query resolves persisted candidates through the persistence seam's non-mutating `inspect()` read, which returns the valid stored prefix without repairing a torn tail or closing an interrupted turn, so listing is storage-read-only; repair remains the resume path's concern. The first version accepts these repeated reads as the no-index correctness baseline, but deployments must treat total corpus and child-log size—not only direct-child count—as the capacity constraint. Listing creates no Agent and appends no catalog, descriptor, or repair event. The model-hidden descriptor remains outside the conversation surface and survives compaction, so compacted and uncompacted children must enumerate identically.
|
||||
|
||||
If measured scale later requires an index, that index is derived state: session headers and child descriptors remain authoritative, and rebuilding or corruption fallback must reproduce the same results. An index cannot become a second authorization source or make an unpublished child visible.
|
||||
|
||||
### `list_agents` contract
|
||||
|
||||
`SubagentService.listChildren(parentSessionId: SessionId)` returns `Promise<SubagentListEntry[]>`, one array preserving the trace's candidate order rather than separate child and diagnostic arrays. `SubagentListEntry` is a closed union discriminated by its readonly `kind`:
|
||||
|
||||
- `kind: 'child'` carries readonly `id: SessionId`, `mode: 'one-shot' | 'continuable'`, and `activity: 'running' | 'inactive'`; a continuable child carries `label: string`, while a one-shot child carries `label?: string`;
|
||||
- `kind: 'diagnostic'` carries readonly `id: SessionId` and `reason: 'corrupt' | 'unsupported' | 'unavailable'`.
|
||||
|
||||
A valid descriptor produces one child entry, a per-child inspection failure produces one diagnostic entry, and a candidate without a descriptor produces no entry. `mode` is durable creation policy; `activity` is a process-local corpus snapshot. Activity is neither `AgentStatus`, the manager's internal Activation state, nor a durable outcome, and the result does not expose the internal `createdAt` sorting key. Exact Activation states and durable outcomes such as successful completion, failure, cancellation, and stop reason require a separate durable activation record and are outside this feature.
|
||||
|
||||
The model-facing `list_agents` tool takes no arguments, derives `parentSessionId` from the current execution Agent, and is a thin adapter in `@deepseek-ai/dsh-tool-subagent-control`. It keeps diagnostics, drops `one-shot` child entries, maps a continuable child's `running` activity to `running` and `inactive` activity to `complete`, then renders `<id> [<status>] — <label>` or `<id> [diagnostic: <reason>]` in the surviving trace order. An empty projection renders `(no subagents)`.
|
||||
|
||||
Diagnostics use three fixed reasons. Malformed event surfaces, conflicting headers discovered during an exact child load, a read result whose immutable header differs from the traced candidate or no longer names the requested direct parent, a target that is no longer the located descriptor event, malformed descriptor content, and multiple descriptor events map to `corrupt`. An unknown descriptor version maps to `unsupported`. `SESSION_QUERY_SESSION_NOT_FOUND`, `SESSION_QUERY_EVENT_NOT_FOUND`, and `SESSION_QUERY_PERSISTENCE_FAILED` from a per-child read map to `unavailable`. This phase boundary is intentional: a persistence outage during the initial trace fails the operation, while the same outage beginning during candidate reads may produce one identical `unavailable` diagnostic per affected child; the first version neither coalesces those diagnostics nor promotes them to a global failure. A missing descriptor is instead a non-subagent exclusion without a diagnostic. Configuration/window errors and unrecognized failures are not child diagnostics and propagate as operation failures. Each diagnostic identifies the child id and reason without exposing model-hidden descriptor content; the candidate is omitted while healthy siblings remain visible. Sessions outside the trace's direct descendants are never read and produce no diagnostic.
|
||||
|
||||
Diagnostics are transient query results, not session events or catalog state. Deriving a diagnostic performs no additional load beyond the `listEvents()` or conditional `readEvent()` operation whose result produced it.
|
||||
|
||||
The first version has no child deletion operation. If later product behavior deletes child sessions, persistence listing naturally drops a deleted child; any future derived index must remove or tombstone the same entry so `list_agents` cannot retain stale state.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Fold listing into the activation RFC.** Descriptor-by-id persistence and cold resume do not require parent-to-child enumeration. Keeping the query separate lets `send_message` land without taking on listing states, scanning performance, or deletion behavior.
|
||||
|
||||
**Rebuild lineage directly from `SessionPersistence.list()`.** This duplicates session query's live-preferred corpus merge, immutable-header consistency checks, direct-child tracing, and deterministic ordering. Listing uses the existing trusted query service and adds only subagent-specific descriptor validation and rendering.
|
||||
|
||||
**List every traced child session.** `parentSession` proves lineage but does not prove that the child is a subagent: ordinary session forks share that header field. Listing must also read and validate the descriptor.
|
||||
|
||||
**Add a `kind` discriminator to `SessionHeader`.** The header would still not carry the reconstruction data required to validate or resume a continuable subagent, so listing would have to read the descriptor anyway. Treating the descriptor as the sole subagent discriminator avoids a second classification source.
|
||||
|
||||
**Use the live Agent registry as the catalog.** Activations are deliberately disposed after settlement, and registry state disappears on restart. It cannot support durable discovery.
|
||||
|
||||
**Use the process-local Activation map as a second catalog.** This exposes manager residency but couples a session-discovery query to materialization and settlement, introduces another ordering clock, and makes the same child change candidate source during its lifetime. The first version lists published logical sessions only and treats `SessionRecord.live` as its snapshot status.
|
||||
|
||||
**Route listing through the Activation-based continuation manager.** The manager owns residency and requires `agents`, while listing interprets only session-query facts. Routing the read through that manager would impose an unrelated runtime service and make discovery disappear with Activation control, so `SubagentService` owns listing directly.
|
||||
|
||||
**Filter by current provider availability.** Provider registration is process-local and may change while the descriptor remains durable. Filtering can hide both a persisted child and a live child even though continuation is provider-independent. Listing therefore establishes durable identity from the descriptor, while `send_message` performs the authoritative delivery-time authority and residency checks.
|
||||
|
||||
**Persist a parent-session catalog event.** Direct-child headers already provide the durable enumeration seed, and the child descriptor is the reconstruction authority. A second parent log duplicates state and creates cross-session ordering and stale-entry behavior without helping by-id resume.
|
||||
|
||||
**Require a display label on every raw start.** This guarantees uniform UI text but makes a presentation concern part of workflow, transport, test, and programmatic start contracts. The raw request keeps the label optional; high-level delegation and continuation APIs supply one where they already own the concept, and UI consumers choose a fallback for unlabeled one-shot children.
|
||||
|
||||
**Fail the whole listing when one child cannot be loaded.** This makes corruption impossible to overlook, but one damaged sibling removes visibility into every healthy child. Per-child diagnostics preserve discovery while keeping each omission explicit.
|
||||
|
||||
**Return separate child and diagnostic arrays.** Separate arrays introduce two ordering domains or require exposing another sort key to reconstruct candidate order. One discriminated entry array preserves the trace order while keeping child and diagnostic fields type-safe.
|
||||
|
||||
**Read candidates through the repairing `load()` path.** Reusing resume's `load()` semantics would let discovery durably close an interrupted tail early, but turns a listing query into a mutating operation and couples its failure modes to write coordination. Session query's corpus reads already use the non-mutating `inspect()` contract, so listing stays storage-read-only and leaves tail repair to the resume path that needs it.
|
||||
|
||||
**Paginate or cap the query now (deferred).** This bounds one result, but makes model discovery stateful and can hide older children unless the model follows a cursor. The first version has no cursor, page arguments, or candidate-limit configuration and returns the complete stably ordered set; a service-level bound remains a later decision if measured scale requires it.
|
||||
|
||||
## Testing
|
||||
|
||||
- `packages/subagent/subagent/tests/service.spec.ts` pins descriptor v2 parsing for both modes and proves an unlabeled raw start resolves a one-shot descriptor before provider dispatch. `packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts` proves the local driver appends that descriptor inside the initial turn, returns the published id when cancellation lands in the factory-to-run handoff, and keeps result and handle-disposal failures on separate channels. Delegation-tool tests pin propagation of their existing display description and preserve independent result and disposal diagnostics.
|
||||
- `packages/subagent/subagent/tests/list-children.spec.ts` pins a query-only composition with sessions, `subagents`, and `sessionQuery` but no `agents`, then drives the full real stack (agent loop, JSONL persistence, spawn/fork providers, the subagent service, and a concrete session-query service) keylessly: one-shot and continuable children from one real trace; a persisted (restart-shaped) parent target; `createdAt`-then-id ordering with authored ties; ordinary-fork and fork-seed ancestor-descriptor exclusion without diagnostics; live `running` vs persisted `inactive`; duplicate-descriptor, malformed-payload, invalid-surface, mismatched-header, and changed-read-target corruption diagnostics that leave healthy siblings visible; unsupported-version and per-child unavailable diagnostics; provider absence without child omission; compacted/uncompacted twins listing identically; grandchild exclusion; trace-phase failure failing the whole call while candidate-phase failures isolate to one child; configuration/window and unrecognized failures propagating as operation failures; forwarded trace/exact-read cancellation with stable `CANCELLED` normalization; and the `SUBAGENT_CONTROL_SESSION_QUERY_UNAVAILABLE` no-service contract. `packages/subagent/subagent/tests/optional-session-query.spec.ts` rejects eager evaluation of the optional runtime while importing the ordinary subagent surface.
|
||||
- `packages/subagent/tool-subagent-control/tests/list-agents.spec.ts` pins the `list_agents` schema (no parameters), the continuable-only projection that omits a healthy one-shot sibling while preserving diagnostics, the fixed child/diagnostic/empty text forms, an end-to-end settled-child listing with its durable label, forwarding of the tool cancellation signal, the no-agent rejection, load-time `sessionQuery` injection, and HMR disposal.
|
||||
- The keyless ACP snapshot scenario `subagent-list-agents` (examples/acp-agent) fences its second parent turn on a snapshot-only `subagent/end` marker, then executes `list_agents` for real against the subagent service, session query, and JSONL persistence, rendering `<id> [complete] — <label>`.
|
||||
- The keyless ACP snapshot scenario `subagent-published-run-failure` publishes a real one-shot child, injects independent run-result and handle-disposal failures, and preserves both diagnostics in the parent tool result.
|
||||
|
||||
## Consequences
|
||||
|
||||
- Session tracing observes the complete logical corpus, then descriptor validation reads every direct-child log once and candidates with exactly one descriptor twice. In the persisted-only worst case, work is O(D × C + Σ L_i), not merely O(D), because each exact read rescans persistence and loads and clones the full candidate log. A later derived index must preserve the same authorization, per-child diagnostic, and fallback behavior.
|
||||
- Corpus construction is an all-or-nothing trust boundary: one live/persisted header conflict fails the initial trace and hides otherwise healthy siblings. Per-child isolation begins only after that trace succeeds.
|
||||
- A torn child tail is surfaced, not repaired: the non-mutating `inspect()` read returns the valid stored prefix, so a child interrupted mid-write may list from a shorter log until the resume path's repairing load closes it.
|
||||
- There is no deletion operation, so persisted children remain listed for as long as their sessions remain in persistence even though live Agent resources remain bounded by resident Activations.
|
||||
- The service returns every direct session-backed subagent and diagnostic without a cursor or candidate cap. Stable ordering makes the result deterministic; the model projection avoids one-shot context growth but remains unbounded in the number of continuable children.
|
||||
- `running` and `inactive` are process-local corpus snapshots, not outcomes or delivery promises. Another process may activate a persisted child while this process reports it as `inactive`; cross-process accuracy requires a shared lease.
|
||||
- Persisting lifecycle mode is a pre-release descriptor-format change: version 2 rejects old version-1 descriptors as unsupported. Every local session-backed start now pays one small log event so UI and other service consumers can classify one-shot history without replaying model-visible tool results.
|
||||
- One-shot session persistence remains best-effort. A one-shot child is visible while live and remains discoverable after disposal only when its session checkpoint reached persistence; unlike continuable activation, catalog participation does not add a required final flush or turn a persistence failure into a run failure. Continuable starts need no eager descriptor flush because the descriptor rides in the creation seed and every Activation disposal path performs the required final checkpoint, including after blocked prompt admission.
|
||||
- Remote ACP one-shot runs remain outside the catalog because they publish no local child session for `traceSession()` to discover. Enumerating them would require a separate durable local record rather than pretending remote lifecycle ids are session ids.
|
||||
@@ -0,0 +1,109 @@
|
||||
# Agent Note（agent 决策记录）：持久化 subagent 目录与 list_agents
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-22-durable-subagent-catalog-and-list-agents.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
可继续的后台 subagent 会公开稳定的 child id，并将重建数据持久化在该 child 的会话中，因此 `send_message` 无需任何列表查询操作即可恢复已知 child。发现功能有两类需求不同的消费方：UI 可以同时展示一次性工作和可继续对话，而模型只应收到适合使用 `send_message` 的 child。[可继续 subagent](../../implemented/feature/2026-07-28-continuable-subagent-conversations.md)负责持久化 Session 与 Activation 设计；本记录负责共享的持久化清单及面向模型的投影。
|
||||
|
||||
枚举必须交叉核对不可变的会话谱系、描述符有效性与实时优先的会话语料，而不能仅为展示就加载或恢复 Agent。追踪谱系可以提供候选项，却无法区分普通会话 fork 与 subagent，因此 child 日志需要持久化分类。契约还必须定义生命周期模式、缺失或损坏的记录、删除、不受支持的版本，以及反复加载大量 child 日志会如何影响服务与工具消费方。
|
||||
|
||||
## 决策
|
||||
|
||||
parent 到 child 的枚举是一项带消费方专用投影的服务功能。`SubagentService.listChildren(parentSessionId: SessionId)`（[subagent/src/index.ts](../../../../packages/subagent/subagent/src/index.ts)）执行以下操作：
|
||||
|
||||
- 使用 `ctx.sessionQuery.traceSession(parentSessionId)` 获取 parent 的直接且实时优先的 child 会话；
|
||||
- 读取并校验每个候选会话的 `subagent/descriptor` 事件，但不激活 child；
|
||||
- 默默排除不含描述符的候选；如果候选变得不可用，或其描述符损坏或版本不受支持，则排除该候选并产生对应 child 的 diagnostic；
|
||||
- 公开每个由本地会话支撑、拥有受支持且有效描述符的 subagent；该描述符必须带有持久化的创建 `label` 和 `mode`，而其提供方当前是否已注册不影响公开；
|
||||
- 将语料活动状态单独报告为 `running` 或 `inactive`，但不暗示已完成或可恢复；
|
||||
- 按 `createdAt` 升序、再按 child id 升序稳定返回所有结果 child。
|
||||
|
||||
每次普通的本地启动都会收到带可选、由调用方拥有之显示标签的 `one-shot` 描述符，而继续执行管理器会持久化带标签、包含附加重建字段的 `continuable` 描述符。面向模型的委派工具已经拥有简短 `description`，会将其用于一次性显示；workflow 等底层调用方无需凭空构造展示元数据。面向模型的 `list_agents` 适配器会将服务结果过滤为可继续 child，并将 `inactive` 映射为其现有的 `complete` 表示；UI 可以消费两种模式，并为无标签的一次性历史选择基于 id 的回退展示。描述符持久化、按 id 查找、直接 parent 鉴权和不依赖提供方的冷恢复仍归已实现的 Activation 契约负责。列表查询消费这些事实，但不能削弱它们，也不能另行发明第二种描述符表示。
|
||||
|
||||
### 枚举决策
|
||||
|
||||
第一版消费 `ctx.sessionQuery.traceSession(parentSessionId)`，并且只考虑追踪结果的第一层后代。目标可以存活，也可以只存在于持久化存储中；追踪逻辑语料不会加载或恢复 Agent。会话查询已经使用实时优先规则合并 `ctx.sessions` 与 `ctx.sessionPersistence`，保持不可变 header 一致性，根据 `SessionHeader.parentSession` 推导直接 child 谱系，并按 `createdAt` 升序、child id 升序排列 sibling。`listChildren()` 不会重复实现这套语料逻辑，也不会检查继续执行管理器的进程内 Activation map。
|
||||
|
||||
语料构建先于逐 child 描述符检查。构建初始追踪时如果发生持久化列表查询失败、所观测语料中任意位置的存活／持久化 header 冲突或目标谱系无效，整个 `list_agents` 调用都会失败，因为此时不存在可信的候选集。只有初始追踪成功后的失败才会被隔离到单个候选；因此，这项逐 child 契约中的“损坏 child”是指已加载的事件 surface 或描述符数据损坏，而不是语料级 header 冲突。
|
||||
|
||||
会话谱系涵盖的范围比 subagent 身份更广：普通 `ctx.sessions.fork()` 也会创建直接 child。会话 header 不新增 `kind` 判别字段；每个候选必须改为在自身后缀中恰好包含一个有效的 `subagent/descriptor` 事件。`SubagentService.start()` 会在普通提供方分发前解析 `{ mode: 'one-shot', provider, label? }`，而继续执行管理器会在初始创建 child 时为 `{ mode: 'continuable', ...composition }` 建立快照并将其作为 seed。本地进程内的一次性驱动只在初始创建期间追加已解析的描述符，从持久化存储冷恢复时不会追加其他描述符；第二个事件属于损坏，而不是另一次 Activation 的证据。Agent 创建是一次性运行的发布边界：拒绝表示没有发布 child，而发布后的提示词、轮次、取消与基础设施结果会通过返回的 run 结算，且不会隐藏其 id。描述符事件是已追踪 child 属于由会话支撑的 subagent 的唯一证据。缺少该事件的候选属于普通 fork、没有本地会话记录的远端 child 或其他非 subagent 会话，系统会将其排除且不产生 diagnostic。
|
||||
|
||||
已发布的逻辑记录同时也是活动状态来源：`SessionRecord.live` 表示 `running`，而 `live: false, persisted: true` 表示 `inactive`。活动状态直接来自追踪结果，不会导致额外加载 child 日志。`inactive` 既不表示执行成功，也不表示可恢复：它可能表示已结算的一次性历史，也可能表示 `send_message` 可以为其物化另一次 Activation 的可继续 child。反过来，`running` 只表示会话存活：位于继续执行管理器对应 Activation 之外的存活可继续 Agent 仍会显示为 `running`，但 `send_message` 会将其作为所有权冲突拒绝。child 会话发布前不可见，也不会添加进程内 Activation 条目作为第二个候选来源或活动状态来源。列表查询是一份快照，可能与发布、dispose 或后续消息发生竞态；`send_message` 仍是消息送达时的权威操作。
|
||||
|
||||
subagent 服务将 `sessionQuery` 保持为可选依赖，因此没有该服务时仍可执行 start 和 follow-up。其公开的 `listChildren(parentSessionId: SessionId)` 方法只在被调用时才会解析这个可选服务，并动态加载可选的会话查询运行时；因此，普通 subagent 导入、start 和 follow-up 都不会触发该包求值。列表查询直接由 `SubagentService` 负责：它解释查询返回的谱系、事件和存活状态，无需解析基于 Activation 的继续执行管理器，也不会查询 Agent 注册信息、Activation 或提供方；因此，仅包含会话、`subagents` 和 `sessionQuery` 的部署即使缺少 `agents` 也能执行列表查询。如果查询服务缺失，该方法会在加载运行时或执行查询工作前抛出 `SubagentError`，并携带稳定错误码 `SUBAGENT_CONTROL_SESSION_QUERY_UNAVAILABLE`。`@deepseek-ai/dsh-tool-subagent-control` 导出可分别加载的工具插件：`send_message` 适配器只要求 `subagents`，而 `list_agents` 适配器在加载时同时要求 `subagents` 和 `sessionQuery`。因此，部署可以在既不安装也不加载会话查询的情况下使用 `send_message`；列表工具 fiber 会在必需服务可用前保持未激活状态，而其他直接服务消费方会收到同一项明确的调用时契约。
|
||||
|
||||
`listChildren(parentSessionId, signal?)` 会把调用方的取消信号转发给 `traceSession()` 和条件性精确 `readEvent()` 操作。`listEvents()` 不接受取消参数，因此列表查询路径会在等待该操作的前后，以及每个候选处理完成后检查信号。如果取消信号触发后有查询操作以拒绝结算，服务会将结果归一化为 `SubagentError`，并携带稳定错误码 `CANCELLED`；后端中止错误或可映射为 diagnostic 的查询错误均不会逃逸，也不会使调用以成功的部分列表返回。
|
||||
|
||||
这条描述符读取路径是正确性基线，并不声称工作量只与直接 child 数量呈线性关系。令 D 为直接 child 候选数量，C 为每次持久化列表查询所扫描的持久化会话数量，L_i 为候选 i 的完整日志大小。一次语料追踪后，每个候选都会执行 `sessionQuery.listEvents(childId)`。没有描述符的候选会被排除；含有多个描述符的候选会直接产生 diagnostic，无需再次读取；只有恰好含有一个描述符的候选才会通过 `sessionQuery.readEvent({ sessionId: childId, seq })` 再次加载。此次读取返回的不可变会话 header 必须与追踪时观测到的相同，包括直接 parent 关系，并且读取目标仍必须是先前定位的描述符事件；任何不一致均视为该 child 损坏。对于只存在于持久化存储中的最坏情况，每次精确读取都会重复执行 `persistence.list()`、加载完整 child 日志并克隆其中的事件，因此忽略常数因子后的工作量为 O(D × C + Σ L_i)；恰好含有一个描述符的候选承担两次这类成本，其他候选只承担一次。存活候选同样会对其完整日志取得一份分离的内存快照；读取其描述符时则会取得两份。会话查询通过持久化 seam 的非变更 `inspect()` 读取解析持久化候选：它返回有效的已存储前缀，既不修复撕裂的尾部，也不关闭中断的 turn，因此列表查询是存储只读操作；修复仍是恢复路径的职责。第一版接受这些重复读取，将其作为无索引的正确性基线，但部署必须将语料总量和 child 日志大小，而不仅是直接 child 数量，视为容量约束。列表查询不会创建 Agent，也不会追加任何目录、描述符或修复事件。对模型隐藏的描述符始终位于对话 surface 之外，并且会在压缩后保留，因此经过压缩和未经压缩的 child 必须枚举出相同结果。
|
||||
|
||||
如果实测规模日后需要索引，该索引属于派生状态：会话 header 和 child 描述符仍是权威信息，重建或损坏回退必须复现相同结果。索引不能成为第二个鉴权来源，也不能让尚未发布的 child 变得可见。
|
||||
|
||||
### `list_agents` 契约
|
||||
|
||||
`SubagentService.listChildren(parentSessionId: SessionId)` 返回 `Promise<SubagentListEntry[]>`，其中的单个数组不会将 child 与 diagnostic 分开，而是保留追踪结果中的候选顺序。`SubagentListEntry` 是一个由只读 `kind` 判别的封闭联合类型：
|
||||
|
||||
- `kind: 'child'` 携带只读的 `id: SessionId`、`mode: 'one-shot' | 'continuable'` 和 `activity: 'running' | 'inactive'`；可继续 child 携带 `label: string`，一次性 child 则携带 `label?: string`；
|
||||
- `kind: 'diagnostic'` 携带只读的 `id: SessionId` 和 `reason: 'corrupt' | 'unsupported' | 'unavailable'`。
|
||||
|
||||
有效描述符产生一个 child 条目，逐 child 检查失败产生一个 diagnostic 条目，缺少描述符的候选不产生条目。`mode` 是持久化创建策略；`activity` 是进程本地语料快照。活动状态既不是 `AgentStatus`、管理器内部的 Activation 状态，也不是持久化结果，结果不公开内部 `createdAt` 排序键。成功完成、失败、取消和停止原因等精确 Activation 状态与持久化结果需要单独的持久化激活记录，不在本功能范围内。
|
||||
|
||||
面向模型的 `list_agents` 工具不接受参数，从当前正在执行的 Agent 推导 `parentSessionId`，并作为 `@deepseek-ai/dsh-tool-subagent-control` 中的轻量适配器。它保留 diagnostic，丢弃 `one-shot` child 条目，将可继续 child 的 `running` 活动状态映射为 `running`、`inactive` 活动状态映射为 `complete`，然后按剩余的追踪顺序渲染 `<id> [<status>] — <label>` 或 `<id> [diagnostic: <reason>]`。空投影渲染为 `(no subagents)`。
|
||||
|
||||
diagnostic 使用三种固定原因。格式错误的事件 surface、精确加载 child 时发现的 header 冲突、读取结果中的不可变 header 与追踪到的候选不一致或不再指向请求的直接 parent、读取目标不再是先前定位的描述符事件、格式错误的描述符内容和多个描述符事件映射为 `corrupt`。未知描述符版本映射为 `unsupported`。逐 child 读取产生的 `SESSION_QUERY_SESSION_NOT_FOUND`、`SESSION_QUERY_EVENT_NOT_FOUND` 和 `SESSION_QUERY_PERSISTENCE_FAILED` 映射为 `unavailable`。这项阶段边界是有意为之：初始追踪期间发生持久化故障会让操作失败，而同一故障如果始于候选读取期间，可能会让每个受影响的 child 分别产生一条相同的 `unavailable` diagnostic；第一版既不合并这些 diagnostic，也不会把它们提升为全局失败。缺少描述符则作为非 subagent 排除，且不产生 diagnostic。配置错误、窗口错误和未识别的失败不属于 child diagnostic，会作为操作失败继续向上传播。每条 diagnostic 都标识 child id 及原因，不暴露对模型隐藏的描述符内容；系统会排除该候选，而其他健康的 sibling 仍然可见。系统绝不会读取不属于追踪结果直接后代的会话，也不会为它们产生 diagnostic。
|
||||
|
||||
diagnostic 是瞬时查询结果，不属于会话事件或目录状态。推导 diagnostic 时，除了产生该结果的 `listEvents()` 或条件性 `readEvent()` 操作外，不会执行额外加载。
|
||||
|
||||
第一版不提供 child 删除操作。如果后续产品行为会删除 child 会话，持久化列表会自然移除已删除的 child；任何未来的派生索引都必须移除或 tombstone 同一条目，避免 `list_agents` 保留陈旧状态。
|
||||
|
||||
## 已考虑的替代方案
|
||||
|
||||
**将列表查询并入激活 RFC。** 按 id 持久化描述符和从持久化存储恢复无需 parent 到 child 的枚举。保持查询独立，可让 `send_message` 落地时不必同时承担列表状态、扫描性能或删除行为。
|
||||
|
||||
**直接通过 `SessionPersistence.list()` 重建谱系。** 这种做法会重复实现会话查询中的实时优先语料合并、不可变 header 一致性检查、直接 child 追踪和确定性排序。列表查询应使用现有可信查询服务，只增加 subagent 特有的描述符校验与渲染。
|
||||
|
||||
**列出每个已追踪的 child 会话。** `parentSession` 能证明谱系，却不能证明 child 是 subagent：普通会话 fork 也使用这个 header 字段。列表查询还必须读取并校验描述符。
|
||||
|
||||
**为 `SessionHeader` 添加 `kind` 判别字段。** header 仍不会携带校验或恢复可继续 subagent 所需的重建数据，因此列表查询无论如何都必须读取描述符。将描述符作为唯一的 subagent 判别信息，可避免引入第二个分类来源。
|
||||
|
||||
**使用存活的 Agent 注册表作为目录。** 系统会在 Activation 结算后有意 dispose 它，而且注册表状态会在重启时消失，因此无法支持持久化发现。
|
||||
|
||||
**使用进程内 Activation map 作为第二个目录。** 这种做法能公开管理器驻留状态，却会让会话发现查询与物化及结算耦合，引入另一套排序时钟，并让同一个 child 在其生命周期内改变候选来源。第一版只列出已经发布的逻辑会话，并将 `SessionRecord.live` 视为其快照状态。
|
||||
|
||||
**让列表查询经过基于 Activation 的继续执行管理器。** 管理器负责驻留状态并要求 `agents`，而列表查询只解释会话查询事实。让读取经过该管理器会强制引入无关的运行时服务，并使发现能力随 Activation 控制一同消失，因此列表查询直接由 `SubagentService` 负责。
|
||||
|
||||
**按当前提供方可用性过滤。** 提供方注册状态属于进程本地状态，即使描述符仍然持久存在，该状态也可能发生变化。即使继续执行不依赖提供方，过滤仍可能隐藏持久化或存活 child。因此，列表查询根据描述符确立持久化身份，而 `send_message` 在消息送达时执行权威的鉴权与驻留状态检查。
|
||||
|
||||
**持久化 parent 会话目录事件。** 直接 child header 已经提供持久化枚举种子，child 描述符则是重建的权威信息。第二份 parent 日志会重复状态，并造成跨会话顺序和陈旧条目行为，却无助于按 id 恢复。
|
||||
|
||||
**要求每次底层启动都提供显示标签。** 这会保证 UI 文本一致，却会把展示关注点引入 workflow、传输、测试和程序化启动契约。底层请求保持标签可选；高层委派与继续执行 API 在本就拥有该概念时提供标签，UI 消费方则为无标签的一次性 child 选择回退展示。
|
||||
|
||||
**某个 child 无法加载时让整次列表查询失败。** 这种做法不会让损坏问题被忽略，但一个损坏的 sibling 会让每个健康 child 都不再可见。逐 child diagnostic 在保持每次排除明确可见的同时，也保留了发现能力。
|
||||
|
||||
**分别返回 child 和 diagnostic 数组。** 分离的数组会引入两个排序域，或者要求公开另一个排序键才能重建候选顺序。一个带判别字段的条目数组既能保留追踪顺序，也能保证 child 与 diagnostic 字段的类型安全。
|
||||
|
||||
**通过会触发修复的 `load()` 路径读取候选。** 复用恢复路径的 `load()` 语义可以让发现提前持久化地关闭中断尾部，但会把列表查询变成变更操作，并使其失败模式与写协调耦合。会话查询的语料读取本就使用非变更的 `inspect()` 契约，因此列表查询保持存储只读，尾部修复留给真正需要它的恢复路径。
|
||||
|
||||
**立即为查询分页或设置上限（暂缓）。** 这可以限制一次结果的大小，但会使模型发现成为有状态操作，而且除非模型继续跟随 cursor，否则可能隐藏更早的 child。第一版没有 cursor、分页参数或候选数量上限配置，而是返回经稳定排序的完整集合；如果实测规模需要限制，服务级限制仍留待后续决策。
|
||||
|
||||
## 测试
|
||||
|
||||
- `packages/subagent/subagent/tests/service.spec.ts` 固定两种模式下的描述符 v2 解析，并证明无标签的底层启动会在分发给提供方之前解析出一次性描述符。`packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts` 证明本地驱动会在初始轮次内追加该描述符，在取消落入工厂到 run 的交接窗口时返回已发布 id，并让结果与句柄释放失败保留在独立通道中。委派工具测试固定其现有显示说明的传递，并保留相互独立的结果与 dispose diagnostic。
|
||||
- `packages/subagent/subagent/tests/list-children.spec.ts` 先固定一个只有会话、`subagents` 和 `sessionQuery` 而没有 `agents` 的纯查询组合，再以无密钥方式驱动完整真实栈（agent loop、JSONL 持久化、spawn/fork 提供方、subagent 服务，以及一个具体的会话查询服务）：来自同一真实追踪的一次性与可继续 child；只存在于持久化存储中（重启形态）的 parent 目标；带有人工构造并列项的按 `createdAt` 再按 id 排序；排除普通 fork 和 fork seed 中祖先描述符且不产生 diagnostic；存活 `running` 与持久化 `inactive` 的对比；重复描述符、载荷格式错误、无效 surface、header 不匹配和读取目标已变化的损坏 diagnostic 均不隐藏健康的 sibling；不受支持版本与逐 child unavailable diagnostic；提供方缺失时不排除 child；压缩与未压缩的孪生 child 列表结果一致；排除孙代会话；追踪阶段失败导致整次调用失败而候选阶段失败只隔离到单个 child；配置／窗口错误和无法识别的失败作为操作失败向上传播；转发 trace／精确读取取消并稳定归一化为 `CANCELLED`；以及 `SUBAGENT_CONTROL_SESSION_QUERY_UNAVAILABLE` 缺服务契约。`packages/subagent/subagent/tests/optional-session-query.spec.ts` 会在导入普通 subagent surface 时拒绝对可选运行时的 eager 求值。
|
||||
- `packages/subagent/tool-subagent-control/tests/list-agents.spec.ts` 固定 `list_agents` 的 schema（无参数）、只保留可继续 child 且排除健康的一次性 sibling、同时保留 diagnostic 的投影、child／diagnostic／空结果的固定文本形式、带持久化 label 的已结束 child 端到端列表、工具取消信号的转发、无调用 agent 时的拒绝、加载时的 `sessionQuery` 注入，以及 HMR dispose。
|
||||
- 无密钥 ACP 快照场景 `subagent-list-agents`（examples/acp-agent）使用仅限快照的 `subagent/end` 标记为第二个 parent 轮次设置边界，随后针对 subagent 服务、会话查询和 JSONL 持久化真实执行 `list_agents`，渲染 `<id> [complete] — <label>`。
|
||||
- 无密钥 ACP 快照场景 `subagent-published-run-failure` 会发布一个真实的一次性 child，注入相互独立的 run result 与 handle dispose 失败，并在 parent 工具结果中保留两项 diagnostic。
|
||||
|
||||
## 影响
|
||||
|
||||
- 会话追踪会观察完整的逻辑语料，随后描述符校验会读取每个直接 child 的日志一次，并对恰好含有一个描述符的候选读取两次。对于只存在于持久化存储中的最坏情况，工作量为 O(D × C + Σ L_i)，而不只是 O(D)，因为每次精确读取都会重新扫描持久化存储，并加载和克隆候选的完整日志。后续的派生索引必须保持相同的鉴权、逐 child diagnostic 和回退行为。
|
||||
- 语料构建是一个全有或全无的信任边界：一处存活／持久化 header 冲突就会导致初始追踪失败，并隐藏原本健康的 sibling。只有初始追踪成功后，逐 child 隔离才会生效。
|
||||
- 撕裂的 child 尾部会被呈现而非修复：非变更的 `inspect()` 读取返回有效的已存储前缀，因此写入中途被打断的 child 在恢复路径的修复加载将其关闭之前，可能以较短的日志形式出现在列表中。
|
||||
- 没有删除操作，因此只要 child 会话仍保留在持久化存储中，它们就会继续出现在列表里，但存活 Agent 资源仍由驻留 Activation 数量限制。
|
||||
- 服务会返回每个直接且由会话支撑的 subagent 和 diagnostic，不设 cursor 或候选数量上限。稳定排序可使结果确定；模型投影避免了一次性 child 带来的上下文增长，但可继续 child 的数量仍无上限。
|
||||
- `running` 和 `inactive` 是进程本地语料快照，而非结果或消息送达承诺。另一个进程可能在当前进程将某个持久化 child 报告为 `inactive` 时激活它；跨进程准确性需要共享租约。
|
||||
- 持久化生命周期模式是一次发布前的描述符格式变更：版本 2 会将旧版版本 1 描述符拒绝为不受支持。现在，每次由本地会话支撑的启动都会产生一个小型日志事件，使 UI 和其他服务消费方无需重放模型可见的工具结果即可对一次性历史进行分类。
|
||||
- 一次性会话持久化仍为尽力执行。一次性 child 在存活期间可见，dispose 后只有在其会话检查点到达持久化存储时才可继续被发现；目录参与不会像可继续激活那样增加必需的最终 flush，也不会把持久化失败变为 run 失败。可继续启动无需提前 flush 描述符，因为描述符会随创建 seed 一同携带，并且每条 Activation dispose 路径都会执行必需的最终检查点，包括提示词准入受阻之后。
|
||||
- 远端 ACP 一次性运行仍不在目录中，因为它们不会发布可供 `traceSession()` 发现的本地 child 会话。若要枚举这些运行，需要单独的持久化本地记录，不能假装远端生命周期 id 就是会话 id。
|
||||
@@ -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
|
||||
2026-07-24-model-facing-session-query-tools.md: 2a9a20a8b39dea309e759f4eb6ddcdabe25dd8be
|
||||
2026-07-24-model-facing-session-query-tools.zh.md: 7fbe746681b329b3e50ae74608a8b2e5167c5ae9
|
||||
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-24-model-facing-session-query-tools.md
|
||||
2026-07-24-model-facing-session-query-tools.md: 863f557f11f89ff8dfc121b7da0b653852528394
|
||||
2026-07-24-model-facing-session-query-tools.zh.md: d8deaba15f111537a16deafe73ed6dd708ea044a
|
||||
|
||||
@@ -36,7 +36,7 @@ Session-level results include the latest folded title when available. Each tool
|
||||
|
||||
## Host composition
|
||||
|
||||
The consumer is an opt-in plugin. The shipped ACP and TUI apps mount `ctx.sessionQuery` for non-model consumers, while the shared Web/headless composition mounts neither the query service nor the consumer. No shipped composition mounts `@deepseek-ai/dsh-tool-session-query`, so default model requests gain no query prompt or schemas. A composition that opts in also chooses whether to mount the generic timeout and spill policies; the dedicated ACP snapshot fixture mounts both and uses private local spill storage. Generic tool presentation requires no session-query-specific client plugin.
|
||||
The consumer is an opt-in plugin. Shipped host compositions do not mount it: the shipped TUI, Web, and headless surfaces keep the `ctx.sessionQuery` index (the SQLite service behind `/resume` and the Web content search) but not the model-facing consumer, so their default requests carry neither the query prompt nor the five schemas; the automation-only ACP composition also mounts neither ([session-search-not-shipped-default](2026-08-02-session-search-not-shipped-default.md)). These compositions also supply the generic timeout and spill policies. The dedicated ACP snapshot fixture mounts the consumer and both policies explicitly, with private local spill storage. Generic tool presentation requires no session-query-specific client plugin.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -48,7 +48,7 @@ The consumer is an opt-in plugin. The shipped ACP and TUI apps mount `ctx.sessio
|
||||
|
||||
## Verification
|
||||
|
||||
Package tests pin argument validation, filter translation, timestamp normalization, exact-workspace authorization, parent-filter preauthorization and oracle resistance, changed-observation rejection, service-diagnostic redaction for ordinary and adversarial unknown values, best-effort cyclic-cause logging, logger-failure containment, missing-identity behavior, hidden-boundary pruning, current-step exclusion, internal provider paging, exclusive search and parallel exact-read classification, count caps, exact-signal forwarding, abort-reason preservation, persistence cleanup quiescence, one-scan bounded batch title enrichment, projection-before-dequeue ordering, queued-work suppression, started-worker quiescence, per-header validation, title fallbacks, representative search/trace/read rendering, generic presentation, and disposable registration. Integration coverage uses the real SQLite FTS provider over live and persisted sessions. Shipped configuration, app composition tests, and assembled ACP request-header snapshots prove that the model-facing consumer remains absent while `ctx.sessionQuery` stays available where mounted. A package-owned Loader smoke and dedicated keyless ACP snapshot explicitly mount the consumer with timeout and spill support, pinning its prompt guidance, schemas, and path-independent exact event-read retention behavior.
|
||||
Package tests pin argument validation, filter translation, timestamp normalization, exact-workspace authorization, parent-filter preauthorization and oracle resistance, changed-observation rejection, service-diagnostic redaction for ordinary and adversarial unknown values, best-effort cyclic-cause logging, logger-failure containment, missing-identity behavior, hidden-boundary pruning, current-step exclusion, internal provider paging, exclusive search and parallel exact-read classification, count caps, exact-signal forwarding, abort-reason preservation, persistence cleanup quiescence, one-scan bounded batch title enrichment, projection-before-dequeue ordering, queued-work suppression, started-worker quiescence, per-header validation, title fallbacks, representative search/trace/read rendering, generic presentation, and disposable registration. Integration coverage uses the real SQLite FTS provider over live and persisted sessions. Shipped configuration and the TUI/Web composition tests prove that the model-facing consumer is absent from the TUI, Web, and headless surfaces, while assembled ACP request-header snapshots prove that the automation surface omits it by default. A package-owned Loader smoke and dedicated keyless ACP snapshot explicitly mount the consumer with timeout and spill support, pinning its prompt guidance, schemas, and path-independent exact event-read retention behavior.
|
||||
|
||||
## Consequences
|
||||
|
||||
|
||||
@@ -36,7 +36,7 @@ Status: implemented
|
||||
|
||||
## 宿主组合
|
||||
|
||||
该消费方是一个需显式启用的插件。发布的 ACP 与 TUI 应用为非模型消费方挂载 `ctx.sessionQuery`，而 Web/headless 共享组合既不挂载查询服务，也不挂载该消费方。发布的组合均未挂载 `@deepseek-ai/dsh-tool-session-query`，因此默认模型请求中不包含查询提示词或 schema。选择启用该插件的组合还要决定是否挂载通用的超时与 spill 策略；专用的 ACP 快照 fixture（测试前置数据）同时挂载这两项策略，并使用私有的本地 spill 存储。通用工具表现无需会话查询专用客户端插件。
|
||||
该消费方是一个需显式启用的插件。已交付的宿主组合不挂载它：已交付的 TUI、Web 与无头界面保留 `ctx.sessionQuery` 索引（即 `/resume` 与 Web 内容搜索背后的 SQLite 服务），但不挂载面向模型的消费方，因此其默认请求既不携带查询提示词，也不携带五个 schema；仅用于自动化的 ACP 组合也两者均不挂载（[session-search-not-shipped-default](2026-08-02-session-search-not-shipped-default.md)）。这些组合还提供通用的超时与 spill 策略。专用的 ACP 快照 fixture（测试前置数据）显式挂载该消费方与这两项策略，并使用私有的本地 spill 存储。通用工具表现无需会话查询专用客户端插件。
|
||||
|
||||
## 考虑过的替代方案
|
||||
|
||||
@@ -48,7 +48,7 @@ Status: implemented
|
||||
|
||||
## 验证
|
||||
|
||||
包级测试固定参数校验、过滤条件转换、时间戳规范化、精确工作区授权、父级过滤预授权与抵御预言机探测、变更观测拒绝、普通值与对抗性未知值的服务诊断脱敏、尽力记录循环 cause、日志失败隔离、身份缺失行为、隐藏边界裁剪、当前步骤排除、内部提供方翻页、搜索独占与精确读取并行分类、数量上限、精确信号传递、中止原因保留、持久化清理静止、单次扫描且并发有界的批量标题扩充、先投影再取出下一个任务的顺序、抑制排队工作、等待已启动 worker 静止、逐会话头校验、标题回退、代表性搜索／追踪／读取渲染、通用表现与可释放注册。集成覆盖使用真实 SQLite FTS 提供方查询实时与持久化会话。发布配置、应用组合测试与组装后的 ACP 请求头快照证明：面向模型的消费方仍未挂载，而 `ctx.sessionQuery` 在已经挂载该服务的组合中保持可用。包自身的 Loader 冒烟测试与专用无密钥 ACP 快照显式挂载该消费方，并配套启用超时与 spill 支持，固定其提示词指引、schema 以及与路径无关的精确事件读取保留行为。
|
||||
包级测试固定参数校验、过滤条件转换、时间戳规范化、精确工作区授权、父级过滤预授权与抵御预言机探测、变更观测拒绝、普通值与对抗性未知值的服务诊断脱敏、尽力记录循环 cause、日志失败隔离、身份缺失行为、隐藏边界裁剪、当前步骤排除、内部提供方翻页、搜索独占与精确读取并行分类、数量上限、精确信号传递、中止原因保留、持久化清理静止、单次扫描且并发有界的批量标题扩充、先投影再取出下一个任务的顺序、抑制排队工作、等待已启动 worker 静止、逐会话头校验、标题回退、代表性搜索／追踪／读取渲染、通用表现与可释放注册。集成覆盖使用真实 SQLite FTS 提供方查询实时与持久化会话。发布配置与 TUI/Web 组合测试证明面向模型的消费方不存在于 TUI、Web 与无头界面，而组装后的 ACP 请求头快照证明自动化界面默认不包含它。包自身的 Loader 冒烟测试与专用无密钥 ACP 快照显式挂载该消费方，并配套启用超时与 spill 支持，固定其提示词指引、schema 以及与路径无关的精确事件读取保留行为。
|
||||
|
||||
## 后果
|
||||
|
||||
|
||||
@@ -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
|
||||
2026-07-25-session-list-browsing-and-manual-order.md: 586995bf459aeaee88672863977f7acf2a7061a3
|
||||
2026-07-25-session-list-browsing-and-manual-order.zh.md: 432d5167a57d30bc04a0b4faf213e4341f07bd2f
|
||||
# pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-25-session-list-browsing-and-manual-order.md
|
||||
2026-07-25-session-list-browsing-and-manual-order.md: bd04e7f74c8a4540d68e60ad68965e05de76bce9
|
||||
2026-07-25-session-list-browsing-and-manual-order.zh.md: 8ec5f71943a68a70f46fbd4c7702e4556b1892ec
|
||||
|
||||
@@ -12,29 +12,29 @@ Two existing mechanisms stood in the way. First, the host durably promoted the a
|
||||
|
||||
## Decision
|
||||
|
||||
### Flat view and viewing state
|
||||
### Flat rows and viewing state
|
||||
|
||||
The group-by menu offers two modes, WorkSpace / In one list. Flat mode renders every session (fork children included) as a top-level row, strictly newest-first by `updatedAt`, with no parent/child adjacency; the Intent placeholder renders as the first row. The mode choice persists in the browser (`dsh.workspace.view`) across reloads.
|
||||
The group-by menu offers two modes, WorkSpace / In one list. WorkSpace mode renders peer session rows within each group in the manual order from `WorkspaceView.sessionIds`; In one list combines every session and sorts them strictly newest-first by `updatedAt`. Neither mode projects `parentId` into a list hierarchy; fork lineage remains session data only. [Web session fork actions](2026-07-27-web-session-fork-actions.md) define the complete fork behavior. The mode choice persists in the browser (`dsh.workspace.view`) across reloads.
|
||||
|
||||
### Row interactions
|
||||
|
||||
- Session rows show a detail card after a 500ms hover dwell (full title / relative time / status line; the status line has only running/idle until the wire grows a status field). The card and the row menu are mutually exclusive: no card while a menu is open or a drag is in flight.
|
||||
- Session-row … menu: Rename / Fork session / Delete session, visual-only this iteration; workspace-header … menu: Rename (wired) / Delete workspace (visual-only). Menus close when the pointer leaves them.
|
||||
- Session-row … menu: Rename / Fork session / Delete session; Rename and Fork are wired, while Delete remains visual-only. The workspace-header … menu's Rename / Delete workspace actions are both wired. Menus close when the pointer leaves them.
|
||||
- Supporting primitives: `Menu` gains label entries, danger rows, and `closeOnPointerLeave`; a new `HoverCard` (portaled placement, open delay, disabled guard).
|
||||
|
||||
### workspace.rename
|
||||
|
||||
`workspace.rename({ workspaceId, title })`: the title is trimmed and must be non-blank; both the same-title no-op and the duplicate check evaluate inside the host's serialized workspace-creation chain (shared with create, so concurrent create/rename cannot interleave a duplicate or an out-of-order fake success), and a conflict returns `workspace-name-conflict`. Durability goes through `setTitle`'s mutate path, and the `domain/changed` listener broadcasts the `host/workspace-changed` frame automatically. The UI is a standard modal with a client-side duplicate pre-check.
|
||||
`workspace.rename({ workspaceId, title })`: the title is trimmed and must be non-blank; both the same-title no-op and the duplicate check evaluate inside the Host's serialized workspace-operation chain (shared with create-by-name, so concurrent explicit naming operations cannot interleave a duplicate or an out-of-order fake success), and a conflict returns `workspace-name-conflict`. Path adoption may derive a title already present because canonical path, not title, owns identity ([decision](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)). Durability goes through `setTitle`'s mutate path, and the `domain/changed` listener broadcasts the `host/workspace-changed` frame automatically. The UI is a standard modal with a client-side duplicate pre-check.
|
||||
|
||||
### Manual order: insertSessionBefore replaces activity pinning
|
||||
|
||||
The `session/event` → `touchSession` activity-pinning chain is deleted wholesale; the workspace account order is now manually owned — new sessions prepend at attach, and explicit reordering goes through `workspace.insertSessionBefore({ workspaceId, sessionId, beforeSessionId? })` (DOM insertBefore semantics: with an anchor it inserts before it, omitted appends to the end). The entity throws a typed `WorkspaceMoveInvalidError` only for unaccounted session/anchor ids; the handler maps exactly that to the business code `workspace-move-invalid`, while storage failures stay internal.
|
||||
|
||||
The UI is HTML5 drag on root rows inside a group (workspace grouping only, outside search; fork children ride with their parent and are not draggable). Order authority stays entirely host-side: drop only sends the RPC, the client performs zero local reordering, and the view refreshes from the response upsert and the changed frame; a failed move changes nothing. The client's upsert rejects snapshots older (`updatedAt`) than the installed projection so a late unary response cannot roll back a newer frame.
|
||||
The UI is HTML5 drag on session rows inside a group (workspace grouping only, outside search; fork children and their source sessions are ordered independently). Order authority stays entirely host-side: drop only sends the RPC, the client performs zero local reordering, and the view refreshes from the response upsert and the changed frame; a failed move changes nothing. The client's upsert rejects snapshots older (`updatedAt`) than the installed projection so a late unary response cannot roll back a newer frame.
|
||||
|
||||
### Shell/region split
|
||||
|
||||
ui-sidebar shrinks to the column-geometry shell: brand row, fold state machine, New Session, Settings, and one `sidebar.workspaces` hole; the shell↔region contract is two facts, `{ wide, expandSidebar }`. ui-workspace fully owns the browsing region (section header, search, grouped tree and flat list, every workspace dialog, drag) plus its groupBy store; the rail-state search/new-workspace icons belong to the region too and request shell expansion via `expandSidebar()`. The picker splits into the core `WorkspaceCreateFlow` (composed directly inside the region) and the thin `WorkspacePicker` wrapper (still filling ui-conversation's hero slot); the old `sidebar.workspace` picker slot and its declaration-aware deferral are deleted with it.
|
||||
ui-sidebar shrinks to the column-geometry shell: brand row, fold state machine, New Session, Settings, and one `sidebar.workspaces` hole; the shell↔region contract is two facts, `{ wide, expandSidebar }`. ui-workspace fully owns the browsing region (section header, search, grouped tree and flat list, every workspace dialog, drag) plus its groupBy store; the rail-state search/add-workspace icons belong to the region too and request shell expansion via `expandSidebar()`. The picker splits into the core `WorkspacePickFlow` (composed directly inside the region; named `WorkspaceCreateFlow` until the [one-route Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)) and the thin `WorkspacePicker` wrapper (still filling ui-conversation's hero slot); the old `sidebar.workspace` picker slot and its declaration-aware deferral are deleted with it.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -46,15 +46,15 @@ ui-sidebar shrinks to the column-geometry shell: brand row, fold state machine,
|
||||
|
||||
**Keep the rename dialog in ui-sidebar (smallest change)** — that is the problem itself: workspace-domain dialogs scattered in a borrowed slot, with each addition (the Delete confirmation is coming) repeating the cross-package wiring. Review first considered moving only the rename modal; the ruling was to give the whole browsing region to ui-workspace and leave the shell geometry-only.
|
||||
|
||||
**Keep parent/child adjacency in flat mode** — contradicts strict recency (a child newer than its parent's sibling cannot slot adjacently), and the flat view's purpose is dropping the hierarchy; flattening fully and disabling drag in flat mode (no persistence carrier) is more consistent.
|
||||
**Nest sessions by fork lineage in WorkSpace mode** — nesting makes the current child visible only while its ancestors are expanded and limits in-group manual ordering to root nodes; `parentId` is lineage data, not a list-navigation structure. Flattening all sessions into peer rows lets each row be opened, searched, and ordered independently; In one list still disables drag because it has no workspace persistence carrier.
|
||||
|
||||
## Consequences
|
||||
|
||||
- Manual order is the sole authority over the workspace account: an order the user arranges is never scrambled by activity; the cost is losing float-to-top-on-activity, whose signal now rides the row status dot and time label. The `WorkspaceView.sessionIds` wire contract is reworded to the manual-order semantics.
|
||||
- The two-fact shell/region contract funnels every future workspace-domain feature (Delete confirmation, cross-group moves, Ungrouped adoption) into the single ui-workspace package; ui-sidebar no longer evolves with session-list features.
|
||||
- Flat mode supports neither reordering nor a create-in-workspace entry point (switching back to grouped view is required) — an accepted scope reduction.
|
||||
- Wiring the three session-menu items and workspace Delete, and growing the wire status enum, remain future iterations.
|
||||
- Wiring session Delete and growing the wire status enum remain future iterations.
|
||||
|
||||
## Testing
|
||||
|
||||
Package-level suites cover the derivations (deriveGroups/deriveFlat), row components, both apply registrations and passthroughs, host entity move semantics, and the rename/insertSessionBefore RPC implementations with their fixture stubs; the `apps/web` keyless snapshots regress the assembled application; delivery acceptance additionally runs a 12-item playwright (chromium headless) checklist (grouped default, flat switch and persistence, hover-card appearance and suppression, both menus, the full rename chain, drag persistence) and drives the real host over the wire for rename success / duplicate rejection / `workspace-move-invalid`.
|
||||
Package-level suites cover the derivations (deriveGroups/deriveFlat), peer session rows, both apply registrations and passthroughs, host entity move semantics, and the rename/insertSessionBefore RPC implementations with their fixture stubs; the `apps/web` keyless snapshots regress the assembled application and pin that a fork does not introduce session expansion controls.
|
||||
|
||||
@@ -12,29 +12,29 @@ Status: implemented
|
||||
|
||||
## Decision
|
||||
|
||||
### 平铺视图与浏览态
|
||||
### 平铺行与浏览态
|
||||
|
||||
group-by 菜单提供 WorkSpace / In one list 两种模式。平铺模式把所有 session(含 fork 子)一律作为顶层行,严格按 `updatedAt` 新→旧排序,不保持父子相邻;Intent 占位行渲染在列表首行。模式选择持久化在浏览器(`dsh.workspace.view`),刷新保持。
|
||||
group-by 菜单提供 WorkSpace / In one list 两种模式。WorkSpace 模式按 `WorkspaceView.sessionIds` 的手动序在各组内展示同级 session 行；In one list 把所有 session 合并后严格按 `updatedAt` 新→旧排序。两种模式都不把 `parentId` 投影成列表层级，fork 谱系只保留为 session 数据；完整 fork 行为由 [Web session fork 操作](2026-07-27-web-session-fork-actions.md)定义。模式选择持久化在浏览器(`dsh.workspace.view`),刷新保持。
|
||||
|
||||
### 行交互
|
||||
|
||||
- session 行悬停 500ms 出详情卡(全名/相对时间/状态行;状态本期只有 running/idle 两态,枚举扩展待 wire 增补 status 字段)。卡片与行菜单互斥:菜单开启或拖拽进行中不出卡。
|
||||
- session 行 … 菜单:Rename / Fork session / Delete session,本期纯视觉;workspace 组头 … 菜单:Rename(已接线)/ Delete workspace(纯视觉)。菜单鼠标移出即关。
|
||||
- session 行 … 菜单:Rename / Fork session / Delete session，其中 Rename 与 Fork 已接线，Delete 仍为纯视觉；workspace 组头 … 菜单的 Rename / Delete workspace 均已接线。菜单鼠标移出即关。
|
||||
- 支撑件:`Menu` 新增 label 条目、danger 行、`closeOnPointerLeave`;新增 `HoverCard`(portal 定位、开启延时、disabled 守卫)。
|
||||
|
||||
### workspace.rename
|
||||
|
||||
`workspace.rename({ workspaceId, title })`:title trim 后非空;同名 no-op 与重名查重都在 host 的 workspace 创建串行链内求值(与 create 共链,并发 create/rename 不能穿插出重名或乱序假成功),冲突回 `workspace-name-conflict`。落盘经 `setTitle` 的 mutate 通道,`domain/changed` 监听自动广播 `host/workspace-changed` 帧。UI 为标准 Modal,client 侧另做重名预检。
|
||||
`workspace.rename({ workspaceId, title })`：title trim 后非空；同名 no-op 与重名查重都在 Host 的 Workspace 操作串行链内求值（与按名称创建共链，并发的显式命名操作不能穿插出重名或乱序假成功），冲突返回 `workspace-name-conflict`。按路径收编可以派生出已有 title，因为拥有身份的是 canonical path，而不是 title（见[身份决策](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)）。落盘经 `setTitle` 的 mutate 通道，`domain/changed` 监听自动广播 `host/workspace-changed` 帧。UI 为标准 Modal，client 侧另做重名预检。
|
||||
|
||||
### 手动排序:insertSessionBefore 取代活动置顶
|
||||
|
||||
`session/event` → `touchSession` 活动置顶链整体删除;workspace 账本序改为纯手动拥有——新 session attach 时前插,显式重排走 `workspace.insertSessionBefore({ workspaceId, sessionId, beforeSessionId? })`(DOM insertBefore 语义:锚给了插锚前,缺省 append 到末尾)。实体只对不在账的 session/锚抛类型化的 `WorkspaceMoveInvalidError`,handler 仅把它映射为业务码 `workspace-move-invalid`,存储故障保持 internal。
|
||||
|
||||
UI 为组内 root 行的 HTML5 拖拽(仅 workspace 分组、非搜索态;fork 子随父不单独拖)。顺序权威完全在 host:drop 只发 RPC,client 零本地重排,视图靠响应体 upsert 与 changed 帧刷新;失败即无事发生。client 的 upsert 拒绝比已装载投影更旧(`updatedAt`)的快照,防迟到的一元响应回滚更新的帧。
|
||||
UI 为组内 session 行的 HTML5 拖拽(仅 workspace 分组、非搜索态；fork 子与源会话一样独立排序)。顺序权威完全在 host:drop 只发 RPC,client 零本地重排,视图靠响应体 upsert 与 changed 帧刷新;失败即无事发生。client 的 upsert 拒绝比已装载投影更旧(`updatedAt`)的快照,防迟到的一元响应回滚更新的帧。
|
||||
|
||||
### 壳/区域切分
|
||||
|
||||
ui-sidebar 缩为列几何壳:品牌行、折叠状态机、New Session、Settings,以及一个 `sidebar.workspaces` 洞;壳与区域的契约只有两个事实 `{ wide, expandSidebar }`。ui-workspace 全权拥有浏览区域(section header、搜索、分组树与平铺、全部 workspace 对话框、拖拽)及其 groupBy store;rail 态的搜索/新建图标也归区域,经 `expandSidebar()` 请求壳展开。picker 拆为核心件 `WorkspaceCreateFlow`(区域内直接组件组合)与薄包装 `WorkspacePicker`(继续填 ui-conversation 的 hero 坑);原 `sidebar.workspace` picker 坑与声明感知延迟注册随之删除。
|
||||
ui-sidebar 缩为列几何壳:品牌行、折叠状态机、New Session、Settings,以及一个 `sidebar.workspaces` 洞;壳与区域的契约只有两个事实 `{ wide, expandSidebar }`。ui-workspace 全权拥有浏览区域(section header、搜索、分组树与平铺、全部 workspace 对话框、拖拽)及其 groupBy store;rail 态的搜索/添加工作区图标也归区域,经 `expandSidebar()` 请求壳展开。picker 拆为核心件 `WorkspacePickFlow`(区域内直接组件组合;在[单一路径 Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)之前名为 `WorkspaceCreateFlow`)与薄包装 `WorkspacePicker`(继续填 ui-conversation 的 hero 坑);原 `sidebar.workspace` picker 坑与声明感知延迟注册随之删除。
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -46,15 +46,15 @@ ui-sidebar 缩为列几何壳:品牌行、折叠状态机、New Session、Settin
|
||||
|
||||
**rename 对话框留在 ui-sidebar(最小改动)** —— 正是问题本身:workspace 域的对话框散落在借来的坑里,每加一个(Delete 确认框将至)都重演跨包接线。评审中先议了「只挪 rename Modal」的中间态,最终裁定整个浏览区域归 ui-workspace,壳只留几何。
|
||||
|
||||
**平铺模式保持父子相邻成组** —— 与「严格按时间」矛盾(子新于兄则插不进相邻位),且平铺本意就是取消层级;拉平并禁用平铺下的拖拽(无持久化载体)更一致。
|
||||
**WorkSpace 模式按 fork 谱系嵌套 session** —— 嵌套会让当前子会话依赖祖先展开态才能可见，也让组内手动序只能移动根节点；`parentId` 是 lineage 数据，不是列表导航结构。所有 session 拍平成同级行后，每行都可独立打开、搜索与排序；In one list 仍因没有 workspace 持久化载体而禁用拖拽。
|
||||
|
||||
## Consequences
|
||||
|
||||
- 手动序是唯一的 workspace 账本序权威:用户排好的顺序不再被活动打乱;代价是「最近活跃浮到最上」的行为消失,活跃感知转由行内状态点与时间标签承担。`WorkspaceView.sessionIds` 的 wire 契约随之改为手动序措辞。
|
||||
- 壳/区域两事实契约把 workspace 域的后续功能(Delete 确认、跨组移动、Ungrouped 收编)全部收进 ui-workspace 单包;ui-sidebar 不再随 session 列表功能演进。
|
||||
- 平铺模式不支持排序与分组入口(建到指定 workspace 需切回分组视图),是拍板接受的范围收窄。
|
||||
- session 菜单三项与 workspace Delete 的功能接线、状态枚举扩 wire,留待后续迭代。
|
||||
- session Delete 的功能接线与状态枚举扩 wire,留待后续迭代。
|
||||
|
||||
## Testing
|
||||
|
||||
包级用例覆盖派生(deriveGroups/deriveFlat)、行组件、两处 apply 注册与透传、host 实体移位语义、rename/insertSessionBefore 的 RPC 实现与 fixture 桩;`apps/web` keyless snapshot 回归覆盖装配后的应用;交付验收另以 playwright(chromium headless)过 12 项清单(分组默认、平铺切换与持久化、hover 卡出现与抑制、双菜单、rename 全链、拖拽落盘),并对真 host 直打 wire 验证 rename 成功/重名拒绝/`workspace-move-invalid` 三径。
|
||||
包级用例覆盖派生(deriveGroups/deriveFlat)、同级 session 行、两处 apply 注册与透传、host 实体移位语义、rename/insertSessionBefore 的 RPC 实现与 fixture 桩；`apps/web` keyless snapshot 回归覆盖装配后的应用，并钉住 fork 后没有 session 展开控件。
|
||||
|
||||
@@ -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/2026-07-25-workspace-ui-product-flow.md
|
||||
2026-07-25-workspace-ui-product-flow.md: b8e1ec1efe19127cad8a12405dddeec38a4ff91e
|
||||
2026-07-25-workspace-ui-product-flow.zh.md: b80b75a80671e9aa2ab59ff72c44c18a8ec5c16e
|
||||
2026-07-25-workspace-ui-product-flow.md: 7a6a41e19d2930fbcbf7ba5fc9e6809d96e23166
|
||||
2026-07-25-workspace-ui-product-flow.zh.md: a40f374fd794b11bff0de72cbc822fd638cd267c
|
||||
|
||||
@@ -20,7 +20,7 @@ The Host provides the following GUI wiring on the Workspace entity:
|
||||
| --- | --- |
|
||||
| `workspace.list` | Returns persistent Workspaces in order and filters out Session ids that fail header validation |
|
||||
| `workspace.create({ name })` | Creates a directory and Workspace at `workspaceRoot/name`; fails on a display-name conflict |
|
||||
| `workspace.create({ path })` | Adopts an existing directory and does not create an arbitrary path |
|
||||
| `workspace.create({ path })` | Adopts an existing directory by canonical path; basename-derived display titles may repeat |
|
||||
| `workspace.delete({ workspaceId })` | Removes the Workspace registration while retaining its directory and session logs; its Sessions become Ungrouped |
|
||||
| `session.create({ workspaceId, sessionId? })` | Resolves cwd from the Workspace, idempotently creates a Session with an optional preallocated id, and attaches it |
|
||||
| `session.create({ cwd })` | Remains available to non-Workspace callers and creates an Ungrouped Session |
|
||||
@@ -50,9 +50,9 @@ On initial entry, the application waits until both the Workspace and Session bas
|
||||
|
||||
When no Workspace exists, the page creates a frontend Workspace object named `workspace` and a frontend Session that targets it. Neither writes to the Host, and the composer always accepts input; the first send materializes the Workspace, attaches the Session, and sends the message in that order.
|
||||
|
||||
Top-level New Session, the plus button on a Workspace row, and the Workspace picker all invoke the same New Session action. An explicit Workspace id becomes the target directly; when none is specified, the action uses the most recent Workspace, or the Workspace Intent if no real Workspace exists. The Workspace picker's Use an existing folder and Create a new workspace actions immediately create a real Workspace when the user confirms, then retarget the frontend Session to it; an explicitly created empty Workspace remains even if the user sends no message.
|
||||
Top-level New Session, the plus button on a Workspace row, and the Workspace picker all invoke the same New Session action. An explicit Workspace id becomes the target directly; when none is specified, the action uses the most recent Workspace, or the Workspace Intent if no real Workspace exists. The Workspace picker's one Add workspace action ([one-route Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md); it was a pair of Use-an-existing-folder and create-by-name actions when this was decided) immediately creates a real Workspace when the user confirms a directory, then retargets the frontend Session to it; an explicitly created empty Workspace remains even if the user sends no message.
|
||||
|
||||
Create a new workspace temporarily uses the same input as both the directory name and display name. The UI prevents duplicate confirmation based on current Workspace titles, while the Host continues to reject same-name requests that bypass the UI or race concurrently. Moving Sessions across Workspaces, manual adoption from Ungrouped, and separate display-name and directory-name inputs remain outside this flow.
|
||||
A new Workspace takes its display name from the directory it was created in. Distinct canonical paths may share the same basename-derived title ([identity decision](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)); explicit create-by-name and rename operations retain their duplicate-title checks. Moving Sessions across Workspaces, manual adoption from Ungrouped, and separate display-name and directory-name inputs remain outside this flow.
|
||||
|
||||
### First send and recovery
|
||||
|
||||
@@ -108,7 +108,7 @@ The Sidebar and conversation empty hero receive standardized actions through slo
|
||||
- Workspace list performs one reentrant bootstrap using only headers; an initialized empty registry does not initialize again after restart, and membership reads validate both the index and canonical cwd.
|
||||
- The initial default target is determined exactly once after both baselines are ready; Workspace groups are not reordered as a whole by hydration or Session activity, and an active Session moves only itself to the front.
|
||||
- A frontend Session under a real Workspace temporarily counts toward the sidebar total, while a Workspace Intent remains hidden; neither publication nor refresh leaves duplicate rows or counts.
|
||||
- Both the UI and Host reject duplicate Workspace names; cwd-only Sessions, Sessions with invalid historical cwd values, and unattached Sessions remain Ungrouped.
|
||||
- The UI and Host admit distinct same-basename directories as separate Workspaces, while explicit create-by-name and rename operations reject duplicate titles; cwd-only Sessions, Sessions with invalid historical cwd values, and unattached Sessions remain Ungrouped.
|
||||
- Confirmed Workspace deletion removes only the registration, retains the current Session, directory, files, and session log, and survives reload; package tests pin unary/frame/baseline races and failure rollback.
|
||||
- Keyless runnable snapshots cover the zero state, explicit creation, and the first send; package-level tests cover bootstrap, membership validation, ordering, idempotency, failure recovery, and arbitrary frame order.
|
||||
|
||||
|
||||
@@ -20,7 +20,7 @@ Host 在 Workspace entity 上提供以下 GUI 接线：
|
||||
| --- | --- |
|
||||
| `workspace.list` | 返回持久有序的 Workspace，并过滤未通过 header 校验的 Session id |
|
||||
| `workspace.create({ name })` | 在 `workspaceRoot/name` 创建目录和 Workspace；显示名冲突时失败 |
|
||||
| `workspace.create({ path })` | 收编已经存在的目录，不为任意路径创建目录 |
|
||||
| `workspace.create({ path })` | 按 canonical path 收编已有目录；由 basename 派生的显示名可以重复 |
|
||||
| `workspace.delete({ workspaceId })` | 移除 Workspace 注册记录，同时保留目录和会话日志；相关 Session 进入 Ungrouped |
|
||||
| `session.create({ workspaceId, sessionId? })` | 从 Workspace 解析 cwd，以可选预分配 id 幂等创建 Session 并 attach |
|
||||
| `session.create({ cwd })` | 保留给非 Workspace 调用方，创建 Ungrouped Session |
|
||||
@@ -50,9 +50,9 @@ Session 自己持有首条输入并驱动一条内部流水线：必要时以预
|
||||
|
||||
完全没有 Workspace 时，页面创建默认名为 `workspace` 的前端 Workspace 对象和指向它的前端 Session。两者不写 Host，composer 始终可输入；首次发送才依次 materialize Workspace、attach Session、发送消息。
|
||||
|
||||
顶部 New Session、Workspace 行内加号和 Workspace picker 最终都调用同一 New Session 动作：显式 Workspace id 直接成为目标，未指定时使用最近 Workspace，没有真实 Workspace 时使用 Workspace Intent。Workspace picker 的 Use an existing folder 与 Create a new workspace 会在用户确认时立即创建真实 Workspace，再把前端 Session 定位到该 Workspace；即使用户不发送消息，显式创建的空 Workspace 也保留。
|
||||
顶部 New Session、Workspace 行内加号和 Workspace picker 最终都调用同一 New Session 动作：显式 Workspace id 直接成为目标，未指定时使用最近 Workspace，没有真实 Workspace 时使用 Workspace Intent。Workspace picker 的单一 Add workspace 动作（见[单一路径 Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)；本决策做出时是 Use an existing folder 与按名称创建两个动作）会在用户确认目录时立即创建真实 Workspace，再把前端 Session 定位到该 Workspace；即使用户不发送消息，显式创建的空 Workspace 也保留。
|
||||
|
||||
Create a new workspace 暂时用同一个输入作为目录名和显示名。UI 根据当前 Workspace title 禁止重复确认，Host 继续拒绝绕过 UI 或并发产生的同名请求。跨 Workspace 移动 Session、从 Ungrouped 手动收编以及分别输入显示名和目录名仍不在此动线范围内。
|
||||
新建 Workspace 的显示名取自其所在目录。不同 canonical path 可以拥有相同的 basename 派生显示名（见[身份决策](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)）；显式的按名称创建和重命名操作仍保留显示名重名检查。跨 Workspace 移动 Session、从 Ungrouped 手动收编以及分别输入显示名和目录名仍不在此动线范围内。
|
||||
|
||||
### 首次发送与恢复
|
||||
|
||||
@@ -108,7 +108,7 @@ Sidebar 与 conversation empty hero 通过 slot 获得标准化动作：`startSe
|
||||
- Workspace list 只读取 header 完成一次可重入 bootstrap；initialized 的空 registry 重启不重复初始化，成员读取同时校验索引与 canonical cwd。
|
||||
- 初始默认目标只在两份基线 ready 后确定一次；Workspace 组不因 hydration 或 Session 活跃整体重排，单个活跃 Session 只前移自身。
|
||||
- 真实 Workspace 下的前端 Session 临时计入 sidebar 数量，Workspace Intent 保持隐藏，发布与刷新都不会留下重复行或重复计数。
|
||||
- UI 与 Host 两层拒绝同名 Workspace；cwd-only Session、无效历史 cwd 和未 attach Session 保持 Ungrouped。
|
||||
- UI 与 Host 会将 canonical path 不同但 basename 相同的目录接纳为独立 Workspace，而显式的按名称创建和重命名操作会拒绝重复显示名；cwd-only Session、无效历史 cwd 和未 attach Session 保持 Ungrouped。
|
||||
- 经确认的 Workspace 删除只移除注册记录，保留当前 Session、目录、文件和会话日志，并在刷新后保持该状态；包级测试固定一元响应／帧／基线竞态和失败回滚行为。
|
||||
- keyless runnable snapshot 覆盖零态、显式创建和首次发送；包级测试覆盖 bootstrap、成员校验、排序、幂等、失败恢复及任意 frame 顺序。
|
||||
|
||||
|
||||
@@ -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/2026-07-27-native-workspace-directory-picker.md
|
||||
2026-07-27-native-workspace-directory-picker.md: 847b7a7c7844a47e534183008acfdc32e2e08125
|
||||
2026-07-27-native-workspace-directory-picker.zh.md: e484a2ba5860d43925aba82be31c803716a33bc5
|
||||
2026-07-27-native-workspace-directory-picker.md: 98f9dc9bed5358e816d4324462d5ea7657f9007f
|
||||
2026-07-27-native-workspace-directory-picker.zh.md: ca765778fae734fd47a05652aea7021328ed4ab6
|
||||
|
||||
@@ -10,7 +10,7 @@ The desktop GUI asks users to type an absolute path when they add an existing wo
|
||||
|
||||
## Decision
|
||||
|
||||
Add a single-folder `host.pickDirectory` RPC and expose it through `WorkspacesService`. The workspace menu presents two flat actions: **Open local folder...** and **Create a new workspace**. Selecting a folder reuses the existing `workspace.create({ path })` flow, selects the returned workspace, and starts a blank session.
|
||||
Add a single-folder `host.pickDirectory` RPC and expose it through `WorkspacesService`. The workspace menu presents the flat **Add workspace...** action (two actions when this was decided — **Open local folder...** beside a create-by-name entry the [one-route Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md) later removed). Selecting a folder reuses the existing `workspace.create({ path })` flow, selects the returned workspace, and starts a blank session.
|
||||
|
||||
The workspace manager must upsert the returned workspace before the selection callback runs. A newly adopted directory therefore renders its basename immediately. Reopening an already registered path preserves its existing workspace title.
|
||||
|
||||
@@ -19,9 +19,9 @@ The workspace manager must upsert the returned workspace before the selection ca
|
||||
- The picker accepts one directory on macOS, Windows, and Linux.
|
||||
- Cancelling the system dialog is silent and returns `null`.
|
||||
- A duplicate path selects the existing workspace.
|
||||
- A different path whose derived title conflicts with another workspace shows a focused error with **Choose again** and **Cancel** actions.
|
||||
- A different canonical path adopts a separate Workspace even when its derived title matches another Workspace ([identity decision](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)).
|
||||
- Other picker failures show a compact retryable error.
|
||||
- The existing create-by-name flow remains unchanged.
|
||||
- The create-by-name flow this decision left untouched is gone; picking a directory is now the whole of adding a workspace ([one-route Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)).
|
||||
|
||||
## Host boundary
|
||||
|
||||
@@ -41,9 +41,9 @@ Platform adapters invoke native tools without a shell:
|
||||
|
||||
## Consequences
|
||||
|
||||
The current GUI opens one local folder through a native picker on macOS, Windows, and Linux. Cancelling changes no state, failures remain retryable, and duplicate paths are idempotent while title conflicts require an explicit new choice. The selected workspace and its displayed name refresh before a new blank session starts. Existing workspace creation by name remains available.
|
||||
The current GUI opens one local folder through a native picker on macOS, Windows, and Linux. Cancelling changes no state, failures remain retryable, duplicate paths are idempotent, and distinct same-basename paths coexist as separate Workspaces. The selected workspace and its displayed name refresh before a new blank session starts. This picker is now the only route to a workspace ([one-route Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)): the operator picks an existing directory, or creates one inside the chooser.
|
||||
|
||||
The added host, runtime, component, and GUI tests cover the native boundary, request trust checks, cancellation and failure handling, existing-path reuse, title conflicts, and the immediate visible-name update. The privileged RPC remains specific to the local desktop carrier; a remote Web directory browser is outside this decision.
|
||||
The added host, runtime, component, and GUI tests cover the native boundary, request trust checks, cancellation and failure handling, existing-path reuse, same-basename adoption, and the immediate visible-name update. The privileged RPC remains specific to the local desktop carrier; a remote Web directory browser is outside this decision.
|
||||
|
||||
## Risks
|
||||
|
||||
|
||||
@@ -10,7 +10,7 @@ Status: implemented
|
||||
|
||||
## 决策
|
||||
|
||||
新增一个用于选择单个文件夹的 `host.pickDirectory` RPC，并通过 `WorkspacesService` 暴露该 RPC。工作区菜单提供两个平铺操作：**打开本地文件夹…** 和 **创建新工作区**。选定文件夹后，系统复用现有的 `workspace.create({ path })` 流程，选中返回的工作区，并启动一个空白会话。
|
||||
新增一个用于选择单个文件夹的 `host.pickDirectory` RPC，并通过 `WorkspacesService` 暴露该 RPC。工作区菜单提供平铺操作 **添加工作区…**（本决策做出时是两个操作：**打开本地文件夹…** 与一个按名称创建的入口，后者已被[单一路径 Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)删除）。选定文件夹后，系统复用现有的 `workspace.create({ path })` 流程，选中返回的工作区，并启动一个空白会话。
|
||||
|
||||
工作区管理器必须在选择回调运行前插入或更新返回的工作区。因此，新纳入的目录会立即显示其 basename。再次打开已注册的路径时，则保留该工作区现有的标题。
|
||||
|
||||
@@ -19,9 +19,9 @@ Status: implemented
|
||||
- 在 macOS、Windows 和 Linux 上，选择器一次只允许选择一个目录。
|
||||
- 取消系统对话框不会显示提示，并返回 `null`。
|
||||
- 路径重复时，选中现有工作区。
|
||||
- 如果路径不同，但其派生标题与另一个工作区冲突，则显示明确指出该冲突的错误提示，其中包含 **重新选择** 和 **取消** 操作。
|
||||
- 即使派生显示名与另一个 Workspace 相同，不同 canonical path 也会被收编为独立 Workspace（见[身份决策](../bug-fix/2026-07-31-same-basename-workspace-adoption.md)）。
|
||||
- 选择器的其他故障会显示简洁且可重试的错误提示。
|
||||
- 现有的按名称创建流程保持不变。
|
||||
- 本决策当时未触碰的按名称创建流程现已删除；选择目录就是添加工作区的全部（见[单一路径 Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)）。
|
||||
|
||||
## 宿主边界
|
||||
|
||||
@@ -41,9 +41,9 @@ Status: implemented
|
||||
|
||||
## 后果
|
||||
|
||||
当前 GUI 可以在 macOS、Windows 和 Linux 上通过原生选择器打开一个本地文件夹。取消操作不会改变任何状态，故障仍可重试；重复路径的处理具有幂等性，标题冲突则要求用户明确重新选择。选中的工作区及其显示名称会在启动新的空白会话前完成刷新。现有的按名称创建工作区功能仍可使用。
|
||||
当前 GUI 可以在 macOS、Windows 和 Linux 上通过原生选择器打开一个本地文件夹。取消操作不会改变任何状态，故障仍可重试；重复路径的处理具有幂等性，basename 相同的不同路径则可作为独立 Workspace 共存。选中的工作区及其显示名称会在启动新的空白会话前完成刷新。该选择器现已是获得工作区的唯一路径（见[单一路径 Note](../simplification/2026-07-31-one-route-to-add-a-workspace.md)）：操作者要么选一个已有目录，要么在选择器内新建一个。
|
||||
|
||||
新增的宿主、运行时、组件和 GUI 测试覆盖原生边界、请求信任校验、取消与故障处理、已有路径复用、标题冲突和可见名称即时更新。该特权 RPC 仍仅面向本地桌面载体；远程 Web 目录浏览器不属于本次决策范围。
|
||||
新增的宿主、运行时、组件和 GUI 测试覆盖原生边界、请求信任校验、取消与故障处理、已有路径复用、同 basename 路径收编和可见名称即时更新。该特权 RPC 仍仅面向本地桌面载体；远程 Web 目录浏览器不属于本次决策范围。
|
||||
|
||||
## 风险
|
||||
|
||||
|
||||
@@ -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/2026-07-27-tmux-location-context.md
|
||||
2026-07-27-tmux-location-context.md: bac5861f7f55c259de04d153115f164d90c415ad
|
||||
2026-07-27-tmux-location-context.zh.md: 03cd722381c45604f7aae8f3d0a9f9fbb8b12bb5
|
||||
2026-07-27-tmux-location-context.md: 9f5e931e56565b0bf3ee219567c6913c40ef1d97
|
||||
2026-07-27-tmux-location-context.zh.md: e47eb43c5a9c64bab4518d118cb4dfd580de64e9
|
||||
|
||||
@@ -12,7 +12,7 @@ tmux exposes this without a daemon: `$TMUX_PANE` names the process's pane, and `
|
||||
|
||||
## Decision
|
||||
|
||||
`@deepseek-ai/dsh-tmux-context` is an opt-in function plugin in `packages/context/tmux-context/`, alongside the other bounded request-context enrichments that define neither a tool nor a service. Shipped examples do not mount it because tmux-location disclosure and its token cost are deployment policy.
|
||||
`@deepseek-ai/dsh-tmux-context` is an opt-in function plugin in `packages/context/tmux-context/`, alongside the other bounded request-context enrichments that define neither a tool nor a service. The shipped TUI mounts it because terminal-multiplexer context is specific to that surface; `dsh-agent-spine-demo` and the Web/headless surfaces stay silent.
|
||||
|
||||
**Pull on the first step of each turn, not a tmux push.** The plugin prepends an `agent/step` listener and acts only when `step === 1`. A pull model needs no background process, no hook installation in the user's tmux, and no teardown; it re-reads current state each turn so a moved, renamed, or re-laid-out pane is picked up naturally. Gating on the first step makes the reading per-turn: a location is stable within a turn, and re-querying every step would add cost without new information. A pane moved mid-turn is reflected on the next turn, which is the accepted tradeoff for the simpler design.
|
||||
|
||||
@@ -42,7 +42,7 @@ The published `./invariant` companion registers no runtime check: a reading is a
|
||||
|
||||
## Consequences
|
||||
|
||||
An agent booted inside tmux now receives its own session/window/pane location and window layout as durable, source-attributed context, updated per turn when the location changes. Deployments opt in through cordis.yml; the default spine and shipped examples stay silent. Outside a real tmux pane — including a terminal that merely inherited `$TMUX`/`$TMUX_PANE` — or without a `ctx.bash` executor, the plugin is inert with no error, so composing it is safe everywhere. Because the reading is one durable `user/message`, it survives compaction as ordinary history, contributes nothing to system-prompt assembly or request headers, and costs at most one two-line message per changed turn. The pull model adds one `tmux display-message` subprocess (through the sandboxed bash seam) on the first step of each turn that is due. The optional interval floor is checked before the query and so suppresses both; an unchanged location is detected only by comparing the returned state, so it suppresses the injection while still paying for the query.
|
||||
An agent booted inside tmux now receives its own session/window/pane location and window layout as durable, source-attributed context, updated per turn when the location changes. The shipped TUI opts in; custom deployments may compose the plugin directly. Outside a real tmux pane — including a terminal that merely inherited `$TMUX`/`$TMUX_PANE` — or without a `ctx.bash` executor, the plugin is inert with no error, so composing it is safe everywhere. Because the reading is one durable `user/message`, it survives compaction as ordinary history, contributes nothing to system-prompt assembly or request headers, and costs at most one two-line message per changed turn. The pull model adds one `tmux display-message` subprocess (through the sandboxed bash seam) on the first step of each turn that is due. The optional interval floor is checked before the query and so suppresses both; an unchanged location is detected only by comparing the returned state, so it suppresses the injection while still paying for the query.
|
||||
|
||||
## Testing
|
||||
|
||||
|
||||
@@ -12,7 +12,7 @@ tmux 无需守护进程即可暴露这些信息：`$TMUX_PANE` 标识进程所
|
||||
|
||||
## 决策
|
||||
|
||||
`@deepseek-ai/dsh-tmux-context` 是位于 `packages/context/tmux-context/` 的可选启用型函数插件，与其他既不定义工具也不定义服务的有界请求上下文增强并列。随附示例不挂载它，因为 tmux 位置披露及其 token 成本属于部署策略。
|
||||
`@deepseek-ai/dsh-tmux-context` 是位于 `packages/context/tmux-context/` 的可选启用型函数插件，与其他既不定义工具也不定义服务的有界请求上下文增强并列。已交付的 TUI 会挂载它，因为终端复用器上下文是该界面特有的；`dsh-agent-spine-demo` 与 Web／无头界面保持沉默。
|
||||
|
||||
**在每轮的第一个 step 拉取，而非 tmux 推送。** 插件前置注册一个 `agent/step` 监听器，仅在 `step === 1` 时动作。拉取模型无需后台进程、无需在用户的 tmux 中安装 hook、也无需清理；它每轮重新读取当前状态，因此被移动、改名或重新布局的 pane 都会被自然感知。以第一个 step 为门槛使读数按轮次生成：位置在一轮内是稳定的，逐步骤重复查询只会增加成本而不带来新信息。轮次中途移动的 pane 会在下一轮反映，这是换取更简单设计所接受的取舍。
|
||||
|
||||
@@ -42,7 +42,7 @@ window active=<0|1>, pane active=<0|1>, layout <window-layout>
|
||||
|
||||
## 后果
|
||||
|
||||
启动于 tmux 内的 agent 现在会以持久、带来源标记的上下文收到自身的 session/window/pane 位置及 window 布局，并在位置变化时按轮次更新。部署方通过 cordis.yml 选择启用；默认 spine 与随附示例保持沉默。在真实 tmux pane 之外——包括仅继承了 `$TMUX`／`$TMUX_PANE` 的终端——或没有 `ctx.bash` 执行器时，插件保持惰性且不报错，因此在任何地方组合它都安全。由于读数是一条持久的 `user/message`，它作为普通历史经受压缩，对系统提示装配与请求头毫无贡献，且每个发生变化的轮次至多花费一条两行消息。拉取模型在每个到期轮次的第一个 step 增加一次 `tmux display-message` 子进程（经沙箱化的 bash seam）。可选的间隔下限在查询之前检查，因此同时抑制查询与注入；而位置未变化只能通过比较查询返回的状态得知，因此它只抑制注入，查询开销仍会付出。
|
||||
启动于 tmux 内的 agent 现在会以持久、带来源标记的上下文收到自身的 session/window/pane 位置及 window 布局，并在位置变化时按轮次更新。已交付的 TUI 选择启用；自定义部署可直接组合该插件。在真实 tmux pane 之外——包括仅继承了 `$TMUX`／`$TMUX_PANE` 的终端——或没有 `ctx.bash` 执行器时，插件保持惰性且不报错，因此在任何地方组合它都安全。由于读数是一条持久的 `user/message`，它作为普通历史经受压缩，对系统提示装配与请求头毫无贡献，且每个发生变化的轮次至多花费一条两行消息。拉取模型在每个到期轮次的第一个 step 增加一次 `tmux display-message` 子进程（经沙箱化的 bash seam）。可选的间隔下限在查询之前检查，因此同时抑制查询与注入；而位置未变化只能通过比较查询返回的状态得知，因此它只抑制注入，查询开销仍会付出。
|
||||
|
||||
## 测试
|
||||
|
||||
|
||||
@@ -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/2026-07-27-trajectory-inspection-ledger.md
|
||||
2026-07-27-trajectory-inspection-ledger.md: 8c2a7c42b7898776de5d42459b09c0fb1737ec0b
|
||||
2026-07-27-trajectory-inspection-ledger.zh.md: 6c5733046dc2cfd3fd2bd005f4cf5c2d2bd110af
|
||||
2026-07-27-trajectory-inspection-ledger.md: cdeaa30ea64f47b0e0110baf566f747a4591a384
|
||||
2026-07-27-trajectory-inspection-ledger.zh.md: df2a3d266161a7c1c4444863971f3d177533af8c
|
||||
|
||||
@@ -21,7 +21,9 @@ Trajectory has to make prose, machine payloads, token usage, timing, and nested
|
||||
- Call schemas come from the active recorded Request header. Keyless snapshot fixtures deliberately replace that catalog with the non-array `{{tools}}` token, which the durable inspection boundary treats as unavailable instead of attempting to project or fabricate schemas.
|
||||
- Selecting a record or Request opens an inspector inside Trajectory. Tabs and Summary sections follow the selected entity: Markdown messages expose rendered, source, provenance, and hierarchy views; tools add JSON payload/result and schema views; Requests add options, usage, timing, and result navigation. Images render as media rather than serialized data.
|
||||
- Turn folding removes all rows after its first record and replaces them with a compact step/tool-call count; Assistant folding applies the same interaction to its tool-call descendants. Global controls fold or expand both levels.
|
||||
- The separate Waterfall tab is removed. A fixed Overview above the ledger projects every record with known `startedAt` onto three semantic timing lanes using its own duration. Dragging left or right commits an inclusive interval filter: any record whose active interval overlaps either boundary remains visible, records without known timing leave the focused ledger, and clearing the selection restores the full branch. The Overview keeps the full time domain while focused so the selection can be resized or cleared without losing orientation.
|
||||
- The separate Waterfall tab is removed. A fixed Overview above the ledger projects every record with known `startedAt` onto three semantic timing lanes using its own duration. Finalized Assistant spans divide the recorded interval at the first non-empty token delta, so distinct TTFT and decoding colors retain their actual ratio; incomplete timing falls back to one Assistant color. Hovering for 500 ms exposes exact start/end, total duration, TTFT, and decoding time without relying on the browser's native tooltip delay. Dragging left or right commits an inclusive interval filter: any record whose active interval overlaps either boundary remains visible, records without known timing leave the focused ledger, and clearing the selection restores the full branch. Wheel gestures zoom the time domain. A right-button click clears the interval selection; dragging instead pans an already zoomed viewport without mutating it. The Overview keeps the full time domain while focused so the selection can be resized or cleared without losing orientation.
|
||||
- Live history updates retain the ledger's bottom position only while the user is already following its tail. Scrolling upward clears that follow state, so streamed chunks and newly appended records do not interrupt inspection of earlier rows.
|
||||
- Trajectory opts into a conversation-owned composer overlay through `data-conversation-composer-overlay`. `ConversationRoot` positions the composer seat and publishes its live height; Trajectory keeps the ledger at full height and reserves that height plus 16 px inside its vertical table and inspector scrollers. Those panes adapt to the available width instead of exposing horizontal scrollbars beneath the overlay.
|
||||
- This local inspector remains independent from the conversation-wide Chat details column. At narrow widths it overlays the ledger and remains dismissible by keyboard or pointer.
|
||||
|
||||
## Alternatives considered
|
||||
@@ -34,10 +36,12 @@ Trajectory has to make prose, machine payloads, token usage, timing, and nested
|
||||
|
||||
**Reuse the global Chat details column.** Rejected: it would couple local inspection to conversation navigation and make a row click unexpectedly change another view's state.
|
||||
|
||||
**Override the composer seat from Trajectory CSS.** Rejected: a cross-package selector would depend on generated class specificity and stylesheet order. An explicit view marker keeps seat geometry and active-phase precedence in `ConversationRoot`, while Trajectory owns only its internal clearance.
|
||||
|
||||
**Keep timing in a separate Waterfall tab.** Rejected: the placeholder summarized node counts rather than record timing and forced users to switch away from the rows they wanted to focus. A full-domain Overview keeps timing and filtered records in one visual context.
|
||||
|
||||
**Change global theme tokens to match the reference.** Rejected: the existing theme already provides paired light and dark semantic layers, and a local redesign does not justify changing unrelated surfaces.
|
||||
|
||||
## Consequences
|
||||
|
||||
Trajectory shows more useful records per viewport while retaining Turn and Request orientation. Context rewrites and compactions remain inline with their surrounding history, while a rewind begins a successor branch that inherits only the retained prefix. The main ledger omits token usage and duration so content receives the available width; the local inspector exposes those facts together with full payloads, provenance, schemas, and request timing. The Overview uses recorded start/duration facts without fabricating live elapsed time, and its inclusive focus behavior matches the interaction users already know from Chrome DevTools Network. Focused component tests pin projection, folding, record and interval selection, entity-specific tabs, and running/error semantics; the assembled Web snapshot pins the ledger, Overview, and inspector through the real client composition.
|
||||
Trajectory shows more useful records per viewport while retaining Turn and Request orientation. Context rewrites and compactions remain inline with their surrounding history, while a rewind begins a successor branch that inherits only the retained prefix. The floating composer leaves the ledger visible to the viewport edge without covering its final rows or hiding horizontal controls. The main ledger omits token usage and duration so content receives the available width; the local inspector exposes those facts together with full payloads, provenance, schemas, and request timing. The Overview uses recorded start/duration and token-boundary facts without fabricating live elapsed time, and its inclusive focus behavior matches the interaction users already know from Chrome DevTools Network. Focused component tests pin tail following, timing projection, delayed detail disclosure, folding, record and interval selection, entity-specific tabs, and running/error semantics; the assembled Web snapshot pins the ledger, Overview timing details, composer overlay geometry, and inspector through the real client composition.
|
||||
|
||||
@@ -21,7 +21,9 @@ Status: implemented
|
||||
- 调用 schema 来自当前生效且已记录的请求头。无密钥快照 fixture（测试前置数据）有意将该目录替换为非数组 token `{{tools}}`，持久化检查边界会将其视为不可用，而不是尝试投影或虚构 schema。
|
||||
- 选择记录或请求后，轨迹视图内部会打开检查器，其标签页和概览区域随实体类型变化：Markdown 消息提供渲染、源码、来源和层级视图；工具提供 JSON 载荷／结果和 schema 视图；请求提供选项、用量、计时和结果跳转。图片以媒体形式渲染，而不是显示为序列化数据。
|
||||
- 折叠轮次时保留其第一条记录，将后续行替换为紧凑的步骤和工具调用数量；折叠助手时对其工具调用后代应用相同交互。全局控件可以分别折叠或展开这两个层级。
|
||||
- 移除独立的 waterfall（瀑布式事件）标签页。固定在记录表上方的 Overview 区域将所有 `startedAt` 已知的记录按各自耗时投影到三条语义计时轨道。向左或向右拖动会提交包含边界的区间筛选：任何活动区间与所选区间相交的记录都会保留，计时未知的记录会从聚焦后的记录表中移除，清除选择则恢复完整分支。聚焦后，Overview 区域仍保留完整时间范围，以便在不失去方位的情况下调整或清除选择。
|
||||
- 移除独立的 waterfall（瀑布式事件）标签页。固定在记录表上方的 Overview 区域将所有 `startedAt` 已知的记录按各自耗时投影到三条语义计时轨道。已完成的助手时间条以首个非空 token 增量为分界，用不同颜色按真实比例表示 TTFT 与解码时间；计时不完整时退化为单一助手色。悬停 500 ms 后会显示精确起止时刻、总耗时、TTFT 和解码时间，而不依赖浏览器原生 tooltip 的延迟。向左或向右拖动会提交包含边界的区间筛选：任何活动区间与所选区间相交的记录都会保留，计时未知的记录会从聚焦后的记录表中移除，清除选择则恢复完整分支。滚轮手势用于缩放时间域。右键单击会清除区间选择；右键拖动则只会平移已放大的 viewport，不会改变该选区。聚焦后，Overview 区域仍保留完整时间范围，以便在不失去方位的情况下调整或清除选择。
|
||||
- 实时历史更新仅在用户已经跟随记录表末尾时保留底部位置。向上滚动会清除跟随状态，因此流式分块和新追加的记录不会打断对旧记录的检查。
|
||||
- Trajectory 通过 `data-conversation-composer-overlay` 启用由会话持有的 composer 浮层模式。`ConversationRoot` 负责定位 composer seat 并发布其实时高度；Trajectory 让记录表保持全高，并在记录表与检查器的纵向滚动容器内预留该高度加 16 px。这两个窗格会根据可用宽度自适应，而不会在浮层下方暴露横向滚动条。
|
||||
- 此局部检查器与会话级 Chat 详情栏相互独立。在窄屏下，检查器会覆盖记录表，并且仍可通过键盘或指针关闭。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
@@ -34,10 +36,12 @@ Status: implemented
|
||||
|
||||
**复用全局 Chat 详情栏。** 不予采纳：这会让局部检查与会话导航耦合，还会使行点击意外改变另一个视图的状态。
|
||||
|
||||
**由 Trajectory CSS 覆盖 composer seat。** 不予采纳：跨包（package）选择器会依赖生成类选择器的优先级和样式表顺序。显式视图标记让 seat 几何形状和活跃阶段优先级留在 `ConversationRoot` 中，而 Trajectory 只负责自身内部的避让空间。
|
||||
|
||||
**将计时保留在独立的 waterfall 标签页中。** 不予采纳：占位实现汇总的是节点数而非记录计时，并迫使用户离开想要聚焦的记录。保留完整时间范围的 Overview 区域让计时和筛选后的记录处于同一视觉上下文中。
|
||||
|
||||
**修改全局主题 token 以匹配参考设计。** 不予采纳：现有主题已经提供配对的亮色与暗色语义层，局部重新设计不足以成为修改无关表面的理由。
|
||||
|
||||
## 后果
|
||||
|
||||
轨迹视图在保留轮次与请求定位的同时，每个视口可以显示更多有效记录。上下文 `rewrite` 与压缩保持在周边历史中的原始位置，`rewind` 则建立仅继承保留前缀的后继分支。主记录表省略 token 用量和耗时，让内容获得可用宽度；局部检查器展示这些数据以及完整载荷、来源、schema 和请求计时。Overview 区域使用记录的开始时间与耗时数据，而不虚构实时流逝时间，其包含边界的聚焦行为与用户熟悉的 Chrome DevTools Network 交互一致。针对性组件测试锁定投影、折叠、记录与区间选择、实体特定标签页和运行／错误语义；组装后的 Web 快照则通过真实客户端组合锁定记录表、Overview 区域与检查器。
|
||||
轨迹视图在保留轮次与请求定位的同时，每个视口可以显示更多有效记录。上下文 `rewrite` 与压缩保持在周边历史中的原始位置，`rewind` 则建立仅继承保留前缀的后继分支。浮动 composer 让记录表一直显示到视口边缘，同时不会遮住最后几行，也不会隐藏横向控件。主记录表省略 token 用量和耗时，让内容获得可用宽度；局部检查器展示这些数据以及完整载荷、来源、schema 和请求计时。Overview 区域使用记录的开始时间、耗时与 token 边界数据，而不虚构实时流逝时间，其包含边界的聚焦行为与用户熟悉的 Chrome DevTools Network 交互一致。针对性组件测试锁定末尾跟随、计时投影、延迟展示详情、折叠、记录与区间选择、实体特定标签页和运行／错误语义；组装后的 Web 快照则通过真实客户端组合锁定记录表、Overview 计时详情、composer 浮层几何形状与检查器。
|
||||
|
||||
@@ -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/2026-07-27-web-session-fork-actions.md
|
||||
2026-07-27-web-session-fork-actions.md: 58960169a2e499d953840e5769e7689b5cd48047
|
||||
2026-07-27-web-session-fork-actions.zh.md: ea2f9030f672f00fb91bce3546836689a7d41004
|
||||
@@ -0,0 +1,33 @@
|
||||
# Agent Note: Web session fork actions
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-27-web-session-fork-actions.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
The Session store already provides a fork primitive that creates a child session from a completed-turn prefix, but the Web client has no unified interaction contract. The Session-row menu can express only “branch from the latest completed turn,” while message IconActions need to express “branch from the turn containing this message”; if the two entry points independently interpret the boundary, switching, and failure behavior, the same user action acquires two sets of semantics. Nesting a fork child beneath its source session also makes the newly selected child visible only while its ancestors are expanded and weakens the workspace manual-order model.
|
||||
|
||||
## Decision
|
||||
|
||||
The Web Session-row menu and message IconActions share the client runtime's `sessions.fork` action. A Session row passes `{ sessionId, increaseTitle: true }`, so it forks at the source session's last completed turn; a user message or settled assistant content message passes `{ sessionId, atSeq: node.seq, increaseTitle: true }`, so it forks at the turn containing that event. Only the client consumes `increaseTitle`: after adding the child session to its local list, the client increments a trailing `(N)` or `（N）` in the source session's persisted title without changing bracket style, appends ` (1)` to an unnumbered title, and skips the rename when no persisted title exists; the Host fork request still contains only `sessionId` and the optional `atSeq`. The caller opens the child only after the rename succeeds; a fork or rename failure leaves the source session and current selection unchanged, while a child created before a rename failure remains in the list.
|
||||
|
||||
`forkAt(seq)` touches the session service only in ui-conversation's apply injection layer; message components report only the event `seq`. Session rows likewise initiate the operation only through ui-workspace's injected callback. Neither presentation package owns session mutation state or duplicates the host's boundary evaluation.
|
||||
|
||||
Session lineage is not projected into a list hierarchy. WorkSpace mode displays source sessions and all fork children as peer rows in the manual order from `WorkspaceView.sessionIds`; every row can be opened, searched, and dragged independently. In one list mode continues to sort strictly by `updatedAt`; the Ungrouped group also sorts by recency when no workspace ledger is available. `parentId` remains available for lineage and later queries, but does not control session-list visibility.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Wire only the Session-row menu.** Rejected: at a message, the user has already selected more precise context; forcing them back to the list can only degrade the boundary to the latest completed turn, while the visible message branch icon would remain non-responsive.
|
||||
|
||||
**Allow branching only from user messages.** Rejected: settled assistant content also has a stable event `seq`, and the host places it in its containing completed turn; making only one of two visually identical branch buttons work would create an invisible behavioral difference.
|
||||
|
||||
**Nest fork children beneath their source by `parentId`.** Rejected: lineage is not navigation ownership; nesting requires automatic ancestor expansion to reveal the current item and prevents children from participating in the workspace's peer manual order.
|
||||
|
||||
**Call the session service directly from message components.** Rejected: client components must not touch `ctx` or business services; injected callbacks keep mutation in the apply world and leave components driven purely by props.
|
||||
|
||||
## Consequences
|
||||
|
||||
Users can create forks from Session rows, user messages, or settled assistant content messages; all three entry points ultimately use the same runtime/host operation. Message entry points preserve the exact event boundary, while the list entry point preserves the “latest completed turn” shortcut. Successive fork titles increment through `(1)`, `(2)`, and so on instead of repeatedly appending `(1)`; titles with fullwidth parentheses retain that style. Every fork child immediately appears as an ordinary peer row, so the list no longer needs session expansion state, recursive nodes, or twist controls.
|
||||
|
||||
Fork and child-rename failures stay silent and preserve the source selection, preventing a derivation action from disrupting the current reading position; this tradeoff also means the UI does not yet expose a failure reason or retry entry point. Package tests separately pin the two message `seq` paths, title increments, and the peer-list derivation; `apps/web/tests/message-actions.e2e.ts` exercises assistant-message branching and Session-row menu branching through the assembled application.
|
||||
@@ -0,0 +1,33 @@
|
||||
# Agent Note: Web session fork 操作
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-27-web-session-fork-actions.md) | 中文
|
||||
|
||||
## Problem
|
||||
|
||||
Session store 已提供按完成轮前缀创建子会话的 fork 原语，但 Web 端没有一份统一的交互契约。Session 行菜单只能表达「从最新完成轮分支」，消息 IconActions 还需要表达「从这条消息所在轮分支」；如果两处各自解释边界、切换与失败行为，同一个用户动作会形成两套语义。把 fork 子会话嵌套在源会话下还会让新选中的子会话依赖祖先展开态才能看见，并削弱 workspace 的手动排序模型。
|
||||
|
||||
## Decision
|
||||
|
||||
Web 的 session 行菜单与消息 IconActions 共用 client runtime 的 `sessions.fork` 操作。Session 行传 `{ sessionId, increaseTitle: true }`，因此在源会话最后一个已完成轮次处分支；用户消息与已定稿 assistant 内容消息传 `{ sessionId, atSeq: node.seq, increaseTitle: true }`，因此在包含该事件的轮次处分支。`increaseTitle` 只由 client 消费：子会话进入本地列表后，client 把源会话持久化标题尾部的 `(N)` 或 `（N）` 递增并保留括号样式，无编号时追加 ` (1)`，没有持久化标题时不改名；Host fork 请求仍只有 `sessionId` 与可选的 `atSeq`。改名成功后调用方才打开子会话；fork 或改名失败时保持源会话与当前选择不变，改名失败时已创建的子会话仍留在列表中。
|
||||
|
||||
`forkAt(seq)` 只在 ui-conversation 的 apply 注入层接触 session 服务，消息组件只回传事件 `seq`。Session 行同理只通过 ui-workspace 的注入回调发起操作；两个呈现包都不持有 session mutation 状态，也不复制 host 的边界求值。
|
||||
|
||||
Session lineage 不投影成列表层级。WorkSpace 模式按 `WorkspaceView.sessionIds` 的手动序把源会话与所有 fork 子会话显示为同级行，每行都可独立打开、搜索和拖拽；In one list 模式继续按 `updatedAt` 严格排序；Ungrouped 组在没有 workspace 账本时也按 recency 排序。`parentId` 仍用于 lineage 和后续查询，但不控制 session 列表可见性。
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**只接 session 行菜单。** 否决：用户在消息处已经选择了更精确的上下文，强迫其回到列表只能退化为最新完成轮，且已展示的消息分支图标会成为无响应控件。
|
||||
|
||||
**只允许用户消息分支。** 否决：已定稿 assistant 内容同样有稳定事件 `seq`，host 会把它归入所属完成轮；让两个外观相同的分支按钮只有一个可用会制造不可见的行为差异。
|
||||
|
||||
**按 `parentId` 把 fork 子会话嵌套在源会话下。** 否决：lineage 不是导航所有权；嵌套要求自动展开祖先才能看见当前项，并让子会话无法参与 workspace 的同级手动排序。
|
||||
|
||||
**由消息组件直接调用 session 服务。** 否决：client 组件不得接触 `ctx` 或业务服务；注入回调让 mutation 留在 apply 世界，组件保持纯 props。
|
||||
|
||||
## Consequences
|
||||
|
||||
用户可从 session 行、用户消息或已定稿 assistant 内容消息创建分支，三处最终走同一个 runtime/host 操作；消息点位保留精确事件边界，列表点位保留「最新完成轮」快捷语义。连续 fork 的标题按 `(1)`、`(2)` 递增，而不是重复追加 `(1)`；全角括号标题保持全角样式。所有 fork 子会话立即作为普通同级行出现，列表不再需要 session 展开状态、递归节点或 twist 控件。
|
||||
|
||||
Fork 与子会话改名失败都保持静默并保留源选择，避免一个派生操作破坏当前阅读位置；该取舍也意味着 UI 暂不提供失败原因或重试入口。Package tests 分别钉住两种消息 `seq`、标题递增与同级列表派生，`apps/web/tests/message-actions.e2e.ts` 通过装配后的应用执行 assistant 消息分支与 session 行菜单分支。
|
||||
@@ -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/2026-07-27-web-session-search.md
|
||||
2026-07-27-web-session-search.md: 9a634c586a4793d1c6986a7e7c0b0c1157b5b687
|
||||
2026-07-27-web-session-search.zh.md: 5ec2baf7443aaaaa75abc348ee426df9c14fbaa2
|
||||
@@ -0,0 +1,44 @@
|
||||
# Agent Note: Web past-session search
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-27-web-session-search.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
The Web sidebar exposes session titles and Workspace membership but cannot retrieve a past conversation from words that appear only inside its messages. Scanning histories in the browser would require attaching or loading every session, duplicate the existing indexed-search service, and make cold persisted sessions both slow and easy to omit. The product also needs a predictable failure path: an unavailable derived index must not erase title matches that the client can compute locally.
|
||||
|
||||
## Decision
|
||||
|
||||
The shared Web/headless composition mounts [`@deepseek-ai/dsh-session-query-sqlite`](../../../../packages/session-query/session-query-sqlite/README.md) with `openAt: first-search` and an in-memory database. The service is ACTIVE at boot, while its `node:sqlite` module and connection-private handle open only on the first content query. This keeps Node 22 startup output free of SQLite's experimental warning before search is used without promising to suppress the warning when search first imports the module. Each service instance owns its index, preserving the SQLite backend's single-owner contract across parallel CLI or Web invocations without leaving process-scoped derived files behind. The database starts empty and lazily reconciles live and persisted sessions on that first query. It remains a disposable derived index, separate from canonical JSONL persistence.
|
||||
|
||||
The host gateway exposes `session.search` through the existing typed RPC stack. It derives the authorization set from the same visible summaries as `session.list`, asks `ctx.sessionQuery.searchSessions` for globally ranked current-surface `user/message`, `assistant/message`, and `steering/message` matches, and consumes provider pages until it has 20 authorized sessions plus one lookahead or exhausts the stream. The first provider page requests 20 hits; a first-page `SESSION_QUERY_INVALID_LIMIT` halves that size through 10, 5, 2, and 1, retaining the learned size across continuations and stale-generation restarts. Every hit's session id, best-match session id, surface, and event type are revalidated before its snippet leaves the Host. Emitted snippets contain at most 240 Unicode code points; the Host and wire schema share the protocol bounds and code-point-safe truncation helper, while the wire schema independently enforces the snippet bound at client parse. Keeping the potentially large authorization set out of SQLite bindings avoids the portable variable ceiling while preserving global ranking. The response remains one bounded page; `hasMore` tells the UI to ask for a narrower query rather than exposing pagination. A stale continuation discards the current attempt's partial results, deduplication entries, and cursors, then restarts from the first page against the original visibility snapshot. Limit probes and stale retries share the limit of 100 provider calls (and therefore at most 2,000 inspected hits); a page larger than its requested limit, a repeated continuation cursor, or a still-unexhausted stream at that call budget fails closed as an `internal` business error. The carrier signal cancels superseded work, including persistence listing, bounded batches of cold-session metadata stats, and each provider call, and wins over a concurrent limit or stale rejection. A missing query service or an unrecovered indexing/query failure remains a business error and does not mutate the canonical session store.
|
||||
|
||||
[`WorkspaceBrowser`](../../../../packages/client/ui-workspace/README.md) keeps metadata and content search deliberately separate. Its default copy is English, and its input plus defensive request path remove NUL and cap queries at the request schema's 500 UTF-16 code units without splitting a surrogate pair. A non-blank query immediately computes case-insensitive title and Workspace substring matches from the Session list, starts a 250 ms debounced content request, aborts the preceding request when the query changes, and ignores stale completions. It merges local matches first in recency order with backend-ranked content-only matches, deduplicates by session id, and renders a flat list regardless of the normal grouping mode. Each row shows the title, Workspace, and an available one-line snippet. Selecting a row opens the Session only and preserves the query; it does not navigate to an exact event.
|
||||
|
||||
The result bound is one protocol constant, not per-connection state. `SESSION_SEARCH_RESULT_LIMIT` lives beside the response schema that enforces it in `dsh-host-apiproxy`, and `SessionsService.searchResultLimit` re-exposes that constant for presentation plugins. Reaching it from a feature is an explicit widening of the sessions domain: `ISessions` — the face injected as `ctx.sessions`, and therefore what the test runtime's sessions double must implement — declares the search verb next to that bound. The connection handle does not carry it: a per-connection field would imply a transport-varying or server-negotiated bound that the schema's fixed `max` forbids, and would leave the same fact with two homes in the same module.
|
||||
|
||||
Content matching inherits the SQLite backend's normalized literal token/phrase semantics. The shared semantic projection excludes reasoning blocks, so UI search never returns a model's private reasoning as a hit or snippet; the derived-index schema version advances so existing persistent indexes rebuild without the former documents. FTS5 operators are inert data, and this surface adds no typo, fuzzy, prefix, or arbitrary-substring expansion. In particular, the `unicode61` tokenizer may treat an uninterrupted Chinese sequence as one token, so a shorter query such as `搜索` is not guaranteed to match inside `会话搜索功能`. Title and Workspace matching remains ordinary client-side substring matching.
|
||||
|
||||
## Failure and visibility contract
|
||||
|
||||
Search never widens session visibility: cold sessions without a servable cwd are absent for the same reason they are absent from `session.list`, and only provider hits whose ids occur in that baseline can leave the Host. Shadowed and log-only events, tool events outside message content, errors, todos, and other trace records do not produce UI hits.
|
||||
|
||||
While the first or a later content request is pending, the UI keeps immediate metadata matches and shows a history-search status. If the backend fails, the same rows remain and a warning explains that content search is unavailable. Zero merged rows produce an explicit empty state. More than 20 candidate rows produce a refine-query hint.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
- **Scan every session history in the browser** — rejected because it attaches transport and fold cost to the UI, misses cold logs unless they are loaded, and duplicates the semantic extraction and source reconciliation already owned by `ctx.sessionQuery`.
|
||||
- **Make trigram or fuzzy search part of the first release** — rejected because it changes index size, ranking, short-query behavior, and product expectations. Trigrams also do not by themselves solve two-character queries. The first release uses the existing backend contract and leaves recall expansion as a separate measured decision.
|
||||
- **Return event addresses and jump to the exact match** — rejected for this release because conversation virtualization and stable event navigation need a separate UI contract. Session-level navigation is useful without coupling search to that work.
|
||||
- **Expose cursor pagination in the sidebar** — rejected in favor of a fixed top-20 surface and a narrow-query hint; this keeps the interaction and cancellation state bounded.
|
||||
|
||||
## Consequences
|
||||
|
||||
Past persisted conversations become discoverable without opening them first, while the host retains one visibility boundary and one semantic-index implementation. Immediate local results hide most request latency, cancellation prevents obsolete queries from repainting the list, and backend failure degrades to the behavior available before content search.
|
||||
|
||||
The first content query can take longer because it imports and opens SQLite before paying lazy reconciliation. Search quality is token/phrase recall rather than fuzzy or arbitrary substring recall, including the documented continuous-Chinese limitation. Results are session-level, capped at 20, and have no paging or exact-message navigation. A valid but pathologically unselective or repeatedly stale provider attempt that does not complete within 100 calls takes the metadata-only failure path instead of consuming unbounded work.
|
||||
|
||||
## Testing
|
||||
|
||||
Host tests pin request and response validation, visible-session filtering, event/surface filters, result and snippet bounds, adaptive provider limits inside the shared call budget, learned-limit stale restarts, cursor and cross-page deduplication behavior, cancellation precedence, and failure mapping. SQLite lifecycle tests pin eager activation, first-search opening and failure, shared readiness, and unopened disposal; semantic extraction and SQLite/fixture search tests pin exclusion of reasoning-only text. The Node 22 compatibility gate builds the CLI and Web artifacts, boots the shipped `dsh web`/`AppCLIEntry` composition under plain Node with ambient warning suppression removed and an isolated temporary home/provider environment, waits for settled startup, and disposes it through the shipped signal path. Fixture, runtime, and UI tests pin match-centered bounded snippets, stateless delegation, the 500-code-unit query boundary, debounce/abort/stale-response behavior, local fallback, merge order, deduplication, English copy, ARIA tree membership, row rendering, and navigation semantics. A keyless assembled Web test preserves the lazy-open config while seeding an unopened persisted conversation, finds it by visible message content through the SQLite index, captures the sidebar result, opens it, and verifies that the query remains.
|
||||
@@ -0,0 +1,44 @@
|
||||
# Agent Note: Web 历史会话搜索
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-27-web-session-search.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
Web 侧边栏会展示会话标题及其 Workspace 归属，但无法根据只出现在消息中的词语检索历史对话。在浏览器中扫描历史记录，需要附加或加载每个会话，重复实现现有的索引搜索服务，也会让冷态持久化会话的检索既缓慢又容易遗漏。产品还需要一条可预测的故障路径：派生索引不可用时，不得抹去客户端能够在本地计算出的标题匹配结果。
|
||||
|
||||
## 决策
|
||||
|
||||
Web 与 headless 共用的组合会使用 `openAt: first-search` 和内存数据库挂载 [`@deepseek-ai/dsh-session-query-sqlite`](../../../../packages/session-query/session-query-sqlite/README.md)。服务启动时处于 ACTIVE 状态，而其 `node:sqlite` 模块与连接私有句柄分别要到首次内容查询才会导入和打开。这让 Node 22 的启动输出在使用搜索前不会出现 SQLite 实验性警告，但并不承诺在首次搜索导入该模块时抑制警告。每个服务实例都独占自己的索引，因此并行 CLI 或 Web 调用可维持 SQLite 后端的单一所有者契约，又不会留下进程级派生文件。数据库从空状态启动，并在该首次查询时惰性对齐实时会话与持久化会话。它仍是与规范 JSONL 持久化相互独立的可丢弃派生索引。
|
||||
|
||||
宿主网关通过现有的类型化 RPC 栈公开 `session.search`。它根据 `session.list` 使用的同一组可见摘要推导授权集合，向 `ctx.sessionQuery.searchSessions` 请求全局排序后的当前 surface `user/message`、`assistant/message` 和 `steering/message` 匹配项，并持续消费提供方分页，直到获得 20 个已授权会话及一个前瞻项，或结果流耗尽。首个提供方页面请求 20 个命中；如果第一页返回 `SESSION_QUERY_INVALID_LIMIT`，页面大小会依次折半为 10、5、2、1，并在续传和陈旧世代重启中沿用探测所得的大小。每个命中的会话 id、最佳匹配会话 id、surface 和事件类型都会经过重新校验，其 snippet 才能离开宿主。发出的 snippet 最多包含 240 个 Unicode 码点；宿主与传输 schema 共用协议边界及码点安全的截断辅助函数，而传输 schema 会在客户端解析时独立强制执行 snippet 上限。将可能很大的授权集合排除在 SQLite 绑定之外，可避开可移植变量上限，同时保持全局排序。响应仍只有一个有界页面；`hasMore` 会指示 UI 提示用户缩小查询范围，而不是公开分页能力。陈旧的续传会丢弃当前尝试的部分结果、去重条目和游标，然后依据原始可见性快照从第一页重新开始。上限探测与陈旧重试共用 100 次提供方调用的限制（因此最多检查 2,000 个命中）；如果某页命中数超过其请求的上限、续传游标重复，或用尽该调用预算后结果流仍未耗尽，都会直接返回 `internal` 业务错误，不返回部分结果。载体信号会取消已被取代的工作，包括持久化列表枚举、分批受限执行的冷会话元数据 stat，以及每一次提供方调用；即使同时收到上限拒绝或陈旧拒绝，也以取消为准。查询服务缺失或索引／查询故障无法恢复时，仍作为业务错误处理，不会修改规范会话存储。
|
||||
|
||||
[`WorkspaceBrowser`](../../../../packages/client/ui-workspace/README.md) 有意将元数据搜索与内容搜索保持独立。其默认界面文案为英文；输入框及防御性请求路径会移除 NUL，将查询限制在请求 schema 规定的 500 个 UTF-16 code unit 内且不会拆分 surrogate pair。非空白查询会立即从会话列表中计算不区分大小写的标题和 Workspace 子串匹配，在 250 ms 防抖后发起内容请求，在查询变化时中止前一请求，并忽略陈旧的完成结果。它先按新近程度排列本地匹配，再合并由后端排序且仅匹配内容的结果，按会话 id 去重；无论常规分组模式如何，最终都渲染为扁平列表。每一行显示标题、Workspace，并在存在时显示一行摘要片段。选择某一行只会打开对应会话，并保留查询条件；不会跳转至确切事件。
|
||||
|
||||
结果上限是单一协议常量，而非逐连接状态。`SESSION_SEARCH_RESULT_LIMIT` 位于 `dsh-host-apiproxy` 中强制执行它的响应 schema 旁边，`SessionsService.searchResultLimit` 则把该常量重新公开给呈现插件。功能包要取用它，必须显式扩展 sessions 域的对外面：`ISessions`（即注入为 `ctx.sessions` 的那个面，也因此是测试运行时的 sessions 替身必须实现的面）在该上限旁声明了搜索动作。连接 handle 不携带它：逐连接字段会暗示该上限随传输层变化或由服务端协商，而 schema 固定的 `max` 恰恰禁止这一点，并且会让同一事实在同一模块内拥有两处归属。
|
||||
|
||||
内容匹配沿用 SQLite 后端经过规范化的字面 token／短语语义。共享语义投影会排除推理（reasoning）块，因此 UI 搜索绝不会将模型的私有推理作为命中或 snippet 返回；派生索引的 schema 版本会随之前进，使现有持久化索引重建并移除先前的这些文档。FTS5 运算符只作为数据处理，此搜索界面不提供拼写错误纠正、模糊匹配、前缀匹配或任意子串扩展。特别是，`unicode61` 分词器可能将一段连续中文视作单个 token，因此不保证 `搜索` 之类的较短查询能匹配 `会话搜索功能` 的内部片段。标题与 Workspace 匹配仍采用普通的客户端子串匹配。
|
||||
|
||||
## 故障与可见性契约
|
||||
|
||||
搜索绝不会扩大会话可见范围：没有可供服务的 cwd 的冷会话会被排除，原因与它们不出现在 `session.list` 中相同；只有 id 位于这条基线中的提供方命中才能离开宿主。被遮蔽事件和纯日志事件、消息内容之外的工具事件、错误、待办事项及其他追踪记录都不会产生 UI 命中结果。
|
||||
|
||||
首个或后续内容请求仍在处理期间，UI 会保留即时元数据匹配结果，并显示历史搜索状态。如果后端失败，这些行会保持不变，并显示警告说明内容搜索不可用。合并后没有任何行时，界面会显示明确的空状态。候选行超过 20 条时，界面会提示用户缩小查询范围。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
- **在浏览器中扫描每个会话的历史记录**：不予采纳，因为这会让 UI 承担传输与折叠开销；除非加载冷态日志，否则还会漏掉这些日志；并会重复实现已经由 `ctx.sessionQuery` 负责的语义提取与源对齐。
|
||||
- **首版即加入 trigram 或模糊搜索**：不予采纳，因为这会改变索引大小、排序、短查询行为与产品预期。trigram 本身也无法解决双字查询。首版沿用现有后端契约，将召回扩展留作另一项基于度量结果的决策。
|
||||
- **返回事件地址并跳转至确切匹配位置**：本版不予采纳，因为对话虚拟化与稳定的事件导航需要单独的 UI 契约。会话级导航本身已有价值，无需让搜索与这项工作耦合。
|
||||
- **在侧边栏公开游标分页**：不予采纳，改为固定显示前 20 条结果并提示缩小查询范围；这样可使交互与取消状态保持有界。
|
||||
|
||||
## 后果
|
||||
|
||||
无需预先打开，即可检索到历史持久化对话，同时宿主仍只保留一条可见性边界和一套语义索引实现。即时本地结果掩盖了大部分请求延迟，取消机制可防止已作废查询重新渲染列表，后端故障则会降级为内容搜索尚不可用时已有的行为。
|
||||
|
||||
首次内容查询可能耗时更长，因为它要先导入并打开 SQLite，再承担惰性对齐的开销。搜索质量采用 token／短语召回，而不是模糊召回或任意子串召回，并受上述连续中文限制。结果粒度为会话，最多 20 条，不支持分页，也不能跳转到具体消息。如果有效但选择性极差或反复陈旧的提供方尝试未能在 100 次调用内完成，系统会进入仅保留元数据匹配的故障路径，而不是无限制地继续处理。
|
||||
|
||||
## 测试
|
||||
|
||||
宿主测试将请求与响应校验、可见会话过滤、事件和 surface 过滤、结果与 snippet 边界、共享调用预算内的自适应提供方上限、沿用探测所得上限的陈旧世代重启、游标与跨页去重行为、取消优先级及故障映射固定为契约。SQLite 生命周期测试将启动时激活、首次搜索时的打开与失败、共享就绪状态以及未打开状态下的处置固定为契约；语义提取测试与 SQLite／fixture 搜索测试将排除仅存在于推理中的文本固定为契约。Node 22 兼容性门禁会构建 CLI 与 Web 产物，在移除环境级警告抑制并采用隔离的临时 home／提供方环境后，以普通 Node 启动随产品交付的 `dsh web`／`AppCLIEntry` 组合，等待启动完成并稳定，再沿随产品交付的信号路径对其执行 dispose（资源释放）。fixture（测试前置数据）、运行时与 UI 测试将以匹配位置为中心的有界 snippet、无状态委托、500 个 code unit 的查询边界、防抖／中止／陈旧响应行为、本地回退、合并顺序、去重、英文文案、ARIA 树成员关系、行渲染与导航语义固定为契约。无密钥的组装层 Web 测试会在保留惰性打开配置的同时，播种一段尚未打开的持久化对话，通过 SQLite 索引按可见消息内容找到它，捕获侧边栏结果，打开该会话，并验证查询条件仍然保留。
|
||||
@@ -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/2026-07-27-web-subagent-conversations.md
|
||||
2026-07-27-web-subagent-conversations.md: 03c805d30dbdbbdb33d0b06ba8036ec181035ac6
|
||||
2026-07-27-web-subagent-conversations.zh.md: e83f07fb21f58ad175ab3e5638981648fa4cef05
|
||||
@@ -0,0 +1,117 @@
|
||||
# Agent Note: Web subagent catalog and human continuation
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-27-web-subagent-conversations.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
Session-backed subagents have durable identities, persisted transcripts, and a direct-child catalog, but ordinary session lineage cannot distinguish them from forks or prove their descriptor mode and continuation authority. Generic Agent-bound Host operations can otherwise resume or drive a child outside its direct-parent continuation owner.
|
||||
|
||||
The browser must preserve the [continuable subagent contract](../../implemented/feature/2026-07-28-continuable-subagent-conversations.md): a continuable child has at most one process-local Activation, accepts later work only through the exact live direct parent, and uses the Agent inbox as its sole FIFO. Viewing history must not create an Activation. Once an inbox message is accepted, the HTTP caller neither owns its execution nor gains a cancellation handle.
|
||||
|
||||
The UI must also preserve the membership, modes, and diagnostics of the [durable catalog](../../implemented/feature/2026-07-22-durable-subagent-catalog-and-list-agents.md). The shared service reports live-preferred corpus activity, while the Web projection replaces it with the exact child Agent driver's `running` or `inactive` state. Neither activity is a durable outcome or a promise that continuation will succeed.
|
||||
|
||||
## Decision
|
||||
|
||||
The Web product exposes the selected session's direct session-backed subagents from a header action. Users can lazily expand descendant catalogs and open either mode in the existing conversation region. A one-shot child is permanently read-only. A continuable child accepts human follow-ups only while its exact direct-parent Agent is live; otherwise its persisted transcript remains readable with a recovery explanation.
|
||||
|
||||
Every opened child carries a catalog-derived address `{ parentSessionId, childSessionId, mode }`. The mode-bearing address, not lineage or the coarse origin marker, selects dedicated history and prompt transports. History reads the persisted session without activation. A continuable prompt calls `ctx.subagents.followup()` and succeeds at inbox acceptance with `{ messageId }`; it does not steer an open turn, expose an Activation, wait for completion, or return an outcome.
|
||||
|
||||
The generic Host domain preserves the same ownership boundary. `session.history` and the source side of `session.fork` read an attached Session or inspect persistence without acquiring an Agent; history folds cold projection values from that exact inspected prefix, while a fork publishes an ordinary independent session. Generic Agent-bound session, command, and goal routes return `agent-busy` for session-backed subagents, as do explicit-id `session.create` adoption and attached-only queue controls. The denial classifier accepts the coarse `origin` marker, a `subagent/descriptor` in the session's own suffix, or exact live runtime ownership by the parent; these signals only prevent generic ownership and never replace catalog mode or direct-parent authorization.
|
||||
|
||||
The ordinary Stop action is absent from addressed child conversations. `SubagentService.followup()` owns admission only until inbox acceptance and intentionally exposes no public child cancellation operation. A later cancellation design needs an explicit authority and lifecycle contract rather than falling through to `session.cancel`.
|
||||
|
||||
This decision covers Web discovery, transcript viewing, and parent-authorized human continuation. It does not make a subagent independently user-owned; that product remains [interactive side sessions](../../proposed/feature/2026-07-08-interactive-side-sessions.md).
|
||||
|
||||
## Design context
|
||||
|
||||
The Figma [subagent list](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=383-14602&p=f), [hierarchical expansion](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=383-15917&p=f), and [child conversation](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=388-18584&p=f) frames are non-normative interaction and visual references. This note owns lifecycle, wire, and failure semantics.
|
||||
|
||||
| Design intent | Shipped contract |
|
||||
| --- | --- |
|
||||
| The session header opens a compact child list. | The trigger aggregates the complete subagent-only descendant lineage; the tree shows every direct catalog entry in service order, including disabled diagnostics. |
|
||||
| Selecting a row reuses the conversation UI. | Addressed history never activates the child; only a continuable row with a live parent retains the ordinary composer. |
|
||||
| Nested agents expand progressively. | Each row carries a one-level `hasChildren` snapshot; disclosure reserves known direct-descendant rows immediately, then loads only that row's direct catalog and retains its own parent address. |
|
||||
| Rows show labels, state, usage, and active duration without duplicating sidebar rows. | Mode and `running`/`inactive` activity are textual as well as visual; optional title, durable token usage, and active-turn duration come from the list's retained projection values. Compact duration loses smaller units above one day, while hover and accessible naming retain exact whole seconds. `SessionHeader.origin` removes duplicate navigation rows but grants no capability. |
|
||||
|
||||
## Product contract
|
||||
|
||||
The header action is absent only when a complete empty direct-catalog response agrees with the session-summary projection that no subagent descendants are known. Its trigger counts every known session-summary descendant reached through an uninterrupted `origin: 'subagent'` lineage, stops at ordinary forks, and shows ongoing activity when any counted descendant is running. Every healthy direct-catalog row carries a read-time `hasChildren` hint derived only from direct lineage headers with durable `origin: 'subagent'`; normal healthy and diagnostic subagent candidates carry that marker, while ordinary forks do not. This lookahead reads no descendant event log, and the descriptor-backed catalog loaded after disclosure remains authoritative. When summaries establish descendants before that catalog exists or after a stale empty response, the action stays visible and exposes only disabled loading rows until opening it refreshes the catalog; summary-only rows never grant navigation. The UI omits disclosure for a known leaf before interaction; the hint does not promise that the child will remain a leaf. While an expanded direct catalog is loading, known lineage reserves one disabled loading row per direct descendant without recursively fetching descendant catalogs. The tree then presents continuable and one-shot rows, falling back to the session id when an optional one-shot label is absent. Corrupt, unsupported, and unavailable candidates remain visible as disabled diagnostic rows.
|
||||
|
||||
`running` means the exact child Agent driver is draining work at the Host sampling boundary; `inactive` means that driver is idle or absent. The UI does not translate either value into success, failure, cancellation, completeness, or resumability. `subagent.list` supplies the current driver-status baseline, `host/session-status` updates known activity in place, request-local replay prevents an older in-flight list response from overwriting a newer transition, and `host/session-removed` returns a known row to `inactive`; reconnect reads a fresh baseline. A `host/session-added` frame for a direct subagent immediately flips any loaded parent row to `hasChildren: true`, and that positive hint survives an older in-flight catalog response; membership, labels, mode, diagnostics, and the authoritative snapshot still require a debounced `subagent.list` refresh while the affected branch is open. A prompt response remains delivery-time authority.
|
||||
|
||||
Healthy rows reuse the standard session projections retained in the list mirror. The token figure sums the four disjoint `tokenUsage` buckets across the durable log. `subagentTiming` resets at every descriptor so an inherited fork seed cannot enter the child's total, accumulates completed `turn/start` → `turn/end` spans, and carries same-cut `active.since` and `active.through` bounds for an open turn. Existing session events advance `active.through` while that turn remains open; the menu adds no separate timer or log read and advances its local clock only while a known descendant is running. Below one day it formats whole seconds; longer visual values retain at most two adjacent units, using approximate 30-day months and 365-day years, while hover and accessible naming preserve the exact day/hour/minute/second duration. An inactive row bounds an interrupted open turn with `active.through`, so a stale projection never borrows newer session metadata and reopening the menu never restarts completed work. Neither metric implies a durable outcome.
|
||||
|
||||
Selecting a row records its exact address before opening the resident client `Session`. History pagination, event folding, tool render intents, titles, and live mux reconciliation reuse the ordinary conversation machinery. Breadcrumbs use catalog labels, follow parent links only through `origin: 'subagent'` rows, include the first ordinary owner, and keep ordinary forks single-level. Forking an addressed subagent creates an ordinary fork with direct source lineage and attaches it to the nearest workspace-owning ancestor. The catalog is an ARIA tree with lazy ArrowRight/ArrowLeft disclosure, linear ArrowUp/ArrowDown navigation, Home/End, Escape, and focus restoration.
|
||||
|
||||
A one-shot row always replaces the composer with copy explaining that the execution record is read-only. A continuable row does so only while `parentAvailable` is false. When enabled, its Send action admits another FIFO turn even if the child is currently running; it never becomes Stop. Prompt failures retain the draft through the ordinary error behavior.
|
||||
|
||||
Agent-bound auxiliary controls are unavailable in addressed child views. In particular, the model selector and `/model` contribution do not call ordinary `session.models` or `session.selectModel`; the Host also rejects any accidental call instead of activating persisted child history outside the direct-parent continuation seam.
|
||||
|
||||
## Host adapter and wire contract
|
||||
|
||||
`@deepseek-ai/dsh-host-apiproxy` owns a browser-safe `subagents` domain:
|
||||
|
||||
- `subagent.list` takes `parentSessionId`, calls `ctx.subagents.listChildren(parentSessionId, signal)`, returns the complete ordered entries with each healthy row's boolean `hasChildren` snapshot, replaces each healthy row's corpus activity with whether its exact Agent driver is running, and includes whether the exact parent currently resolves from `ctx.agents`.
|
||||
- `subagent.history` takes the full mode-bearing address plus ordinary page arguments. It verifies the child and mode against the direct catalog, reads through `ctx.sessionQuery.readSession()`, rechecks direct lineage, and returns the ordinary raw-event, render-intent, pagination, and host-computed session-projection baseline without publishing an Agent.
|
||||
- `subagent.prompt` accepts only a `mode: 'continuable'` address and `ContentBlock[]`. It requires the exact live parent, revalidates the catalog address, calls `ctx.subagents.followup(parent, childId, content, { source, signal })`, and returns the accepted `MessageId`.
|
||||
|
||||
The gateway maps missing parent, missing or diagnostic catalog entries, not-resumable and unauthorized children, request cancellation, and temporarily unavailable continuation admission to typed RPC errors. It does not expose descriptor or provider details. A list/prompt race is normal: the prompt result, not the earlier availability or activity snapshot, is authoritative.
|
||||
|
||||
Viewing persisted history creates no mux subscription by itself. When a follow-up materializes a cold child Activation, the existing Host and mux streams publish its lifecycle and events. Reconnect rebuilds the addressed window through `subagent.history`.
|
||||
|
||||
The ordinary `session.history` route is likewise observation-only for both ordinary and subagent sessions, but it does not carry the catalog address or grant continuation authority. Every ordinary route that needs an Agent resolves through the shared ownership fence before cold resume; `session.cancel` and `session.updateQueue` apply the same check directly because they intentionally query only attached Agents.
|
||||
|
||||
The adapter stays in `dsh-host-apiproxy`; `dsh-host-webserver` remains a carrier. Browser code imports the contract through the existing connection package and never reaches host `ctx`, preserving the [GUI RPC layering](../../implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.md).
|
||||
|
||||
## Client object layer and presentation
|
||||
|
||||
The React-free runtime owns catalogs, single-flight refreshes, retained addresses, availability hints, transport selection, and a reference-stable map of each list row's current projection values. Re-selecting a known child retains its address so navigation cannot silently switch to ordinary session APIs. A missing intermediate breadcrumb address can be recovered from an already-loaded ancestor catalog, but it is not retained for transport and creates no scope until the user selects that breadcrumb. Restored navigation persists the full mode-bearing address.
|
||||
|
||||
Catalogs ride the standard `useSessions` snapshot. Component-local state owns menu visibility, expanded branches, and focus. `ui-conversation` declares the generic header-action list slot and dispatches the current conversation snapshot through its composer chain; it contains no subagent-specific takeover flag. `@deepseek-ai/dsh-client-ui-subagent` registers the catalog action and elects a reason-specific read-only composer from ordinary owner props. Components receive derived props and callbacks, never `ctx`.
|
||||
|
||||
Every in-process subagent child stamps `SessionHeader.origin: 'subagent'` before publication. Session list summaries and incremental Host frames project it so grouped and flat sidebars omit duplicate child rows while preserving ordinary forks. The same existing `host/session-added` frame marks a loaded direct parent row expandable without introducing a catalog event stream. Descriptor mode and catalog verification remain the authority for navigation, continuation, and authorization.
|
||||
|
||||
The package's existing `@label` source remains separate plain-text model input. It does not resolve labels to addresses or acquire continuation semantics.
|
||||
|
||||
## Default Web assembly
|
||||
|
||||
The shipped Web composition mounts SQLite session query beside JSONL persistence and configures spawn and fork background delegation as continuable. It also mounts the model-facing `send_message` and `list_agents` adapters for coordinator parity, but the GUI calls the shared `SubagentService` through the host RPC domain rather than invoking model tools. One-shot children remain catalog-visible and read-only.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Use ordinary session APIs for addressed children.** Rejected because generic history carries no catalog-mode verification, while Agent-bound generic controls deliberately reject subagents rather than granting direct-parent continuation authority.
|
||||
|
||||
**Put the adapter in the webserver.** Rejected because catalog and continuation are channel-independent client capabilities; the webserver only carries validated messages.
|
||||
|
||||
**Create a new UI package.** Rejected because `ui-subagent` already owns Web subagent references and is the coherent owner for catalog and addressed-child presentation.
|
||||
|
||||
**Auto-resume an absent parent.** Rejected because continuation requires the exact live direct parent. Child navigation must not mutate the parent lifecycle.
|
||||
|
||||
**Expose ordinary cancellation.** Rejected because the accepted inbox turn outlives its admission request and the continuation seam exposes no authority-safe cancellation handle.
|
||||
|
||||
**Show only continuable children.** Rejected because the durable catalog deliberately describes both session-backed modes. One-shot transcripts remain useful even though they never accept follow-ups.
|
||||
|
||||
**Infer mode or sidebar filtering from lineage.** Rejected because ordinary forks share `parentSession`. The descriptor-backed catalog owns mode; the separate `origin` marker is only a cheap navigation classifier.
|
||||
|
||||
**Build an eager recursive tree or dedicated catalog stream.** Rejected for the current scale. Header-only one-level expandability lookahead preserves pre-click stability without reading descendant events, while disclosure remains a lazy authoritative direct-child read; existing Host frames update activity, restore expandable parent rows, and trigger bounded membership refreshes.
|
||||
|
||||
**Let a child remain independently interactive after its parent disappears.** Rejected because independent lifetime and user ownership require side-session semantics.
|
||||
|
||||
## Testing
|
||||
|
||||
- Host protocol tests pin schemas including required boolean expandability, id echoing, mode verification, non-activating history, exact-parent enforcement, FIFO admission receipts, cancellation, and sanitized failure mapping.
|
||||
- Generic Host tests pin attached and cold history and forks without Agent publication, cold projection folding, descriptor/origin/runtime-owner denial, explicit-id adoption denial, and the direct queue-control fence.
|
||||
- Client object tests pin retained and restored addresses, one-shot read-only rejection, history routing, continuable prompt routing, no addressed cancellation, suppression of Agent-bound model controls, live activity flips including in-flight response replay and detach fallback, subagent-parent expandability flips, and membership refresh.
|
||||
- jsdom tests pin the aggregate descendant count and activity, token totals, second-precision running and frozen inactive durations, adaptive long-duration units with exact accessible text, the summary-backed root action across absent and stale-empty catalogs, known loading-row shape, mixed-mode rows, pre-click leaf disclosure, diagnostics, lazy descendant disclosure, direct-parent addresses, keyboard behavior, and both read-only reasons.
|
||||
- The keyless assembled Web snapshot contains an inactive continuable child with durable usage, an inactive one-shot sibling with a deterministic long duration, and a persisted grandchild; it pins the three-descendant trigger across a stale empty catalog response, usage and timing rows, adaptive long-duration presentation, and aggregate running transition, expands without activation, opens persisted history, admits a human FIFO follow-up, reconciles child mux events, and proves one-shot history remains read-only.
|
||||
- Navigation tests pin subagent-only breadcrumbs, workspace placement for forks created from subagents, and `origin: 'subagent'` sidebar filtering without hiding ordinary forks.
|
||||
|
||||
## Consequences
|
||||
|
||||
- Catalog reads may rescan persisted lineage and each direct candidate's descriptor log, but expandability reuses only descendant headers already present in that trace; the Web activity baseline adds one Agent-registry lookup per healthy row and then uses existing live frames, while usage and duration reuse projection baselines and pushes with no per-row log read, and membership refresh stays debounced and single-flight.
|
||||
- Parent availability, child activity, and `hasChildren` are snapshots. Publication, disposal, another sender, or another process may win after listing; typed prompt failure remains expected.
|
||||
- A child may publish between history fetch and mux subscription, so the existing sequence reconciliation also covers the cold-to-live addressed path.
|
||||
- Persisted origin adds one deliberately weak product-classification field to child headers and list projections; it cannot become an authorization shortcut.
|
||||
- The UI has no child cancellation, durable outcome, Activation identity, deletion, or independently interactive offline mode, and its text must not imply those capabilities. Active-turn duration measures logged work rather than Activation residency.
|
||||
@@ -0,0 +1,117 @@
|
||||
# Agent Note: Web subagent 目录与用户继续交互
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-27-web-subagent-conversations.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
由会话支撑的 subagent 具有持久化身份、持久化 transcript（文本记录）与直接 child 目录，但普通会话谱系无法将它们与 fork 区分开，也无法证明其描述符 mode 与继续执行授权。否则，绑定到 agent（智能体）的通用 Host 操作可能在其直接 parent 继续执行 owner 之外恢复或驱动 child。
|
||||
|
||||
浏览器必须遵守[可继续 subagent 契约](../../implemented/feature/2026-07-28-continuable-subagent-conversations.md)：一个可继续 child 在进程内最多只能有一项 Activation，只能通过确切的存活直接 parent 接受后续工作，并将 agent inbox 用作唯一的 FIFO。查看历史不得创建 Activation。inbox 消息一经接受，HTTP 调用方既不拥有其执行过程，也不会获得取消句柄。
|
||||
|
||||
UI 还必须保留[持久化目录](../../implemented/feature/2026-07-22-durable-subagent-catalog-and-list-agents.md)的成员、mode 与 diagnostic。共享服务报告采用实时优先规则的语料活动状态，而 Web 投影会将其替换为确切 child Agent driver 的 `running` 或 `inactive` 状态。这两种活动状态都不是持久化结果，也不承诺继续执行会成功。
|
||||
|
||||
## 决策
|
||||
|
||||
Web 产品通过页头操作公开选中会话中由会话支撑的直接 subagent。用户可以懒加载展开后代目录，并在现有对话区域中打开任一 mode。one-shot child 永久只读。可继续 child 只有在其确切直接 parent agent 存活时才接受用户后续消息；否则，其持久化 transcript 仍然可读，并附带恢复说明。
|
||||
|
||||
每个打开的 child 都携带目录派生地址 `{ parentSessionId, childSessionId, mode }`。选择专用历史与提示词传输的是包含 mode 的地址，而不是谱系或粗粒度 origin 标记。历史操作会从持久化存储读取会话，而不触发激活。可继续提示词操作会调用 `ctx.subagents.followup()`，并在 inbox 接受消息时以 `{ messageId }` 成功返回；它不会 steer 打开的轮次、公开 Activation、等待完成或返回结果。
|
||||
|
||||
通用 Host 领域遵守同一所有权边界。`session.history` 与 `session.fork` 的源端会读取已附加 Session 或检查持久化存储，而不获取 Agent；history 从所检查的确切前缀归并冷态投影值，fork 则发布一个普通的独立会话。绑定到 Agent 的通用会话、命令与目标路由会对由会话支撑的 subagent 返回 `agent-busy`；显式 id 的 `session.create` 接纳与仅针对已附加会话的队列控件亦然。拒绝分类器接受粗粒度 `origin` 标记、会话自身后缀中的 `subagent/descriptor`，或 parent 对其确切的存活运行时所有权；这些信号只会阻止通用路径取得所有权，绝不取代目录 mode 或直接 parent 授权。
|
||||
|
||||
已寻址 child 对话不提供普通 Stop 操作。`SubagentService.followup()` 只负责消息被 inbox 接受前的准入，并有意不公开任何 child 取消操作。后续取消设计需要显式的授权与生命周期契约，而不能回退到 `session.cancel`。
|
||||
|
||||
本决策涵盖 Web 端发现、transcript 查看与经 parent 授权的用户继续交互。它不会让 subagent 成为用户独立所有的对象；这类产品仍然属于[交互式 side session](../../proposed/feature/2026-07-08-interactive-side-sessions.md)。
|
||||
|
||||
## 设计上下文
|
||||
|
||||
Figma 中的 [subagent 列表](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=383-14602&p=f)、[层级展开](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=383-15917&p=f)与 [child 对话](https://www.figma.com/design/jRBBK7zBgcszdVWQ0Fh5J8/Harness?node-id=388-18584&p=f)画框是非规范性的交互与视觉参考。本记录负责生命周期、协议与失败语义。
|
||||
|
||||
| 设计意图 | 已交付契约 |
|
||||
| --- | --- |
|
||||
| 会话页头可打开紧凑的 child 列表。 | 触发器会汇总仅含 subagent 的完整后代谱系；树按服务顺序显示每个直接目录条目，包括已禁用的 diagnostic。 |
|
||||
| 选择一行会复用对话 UI。 | 已寻址历史绝不激活 child；只有 parent 存活的可继续行才保留普通输入框。 |
|
||||
| 嵌套 agent 会逐层展开。 | 每行携带一层 `hasChildren` 快照；展开时会立即预留已知直接后代行，随后仍只加载该行的直接目录，并保留其自身的 parent 地址。 |
|
||||
| 条目显示 label、状态、token 用量与活跃耗时，同时避免侧边栏条目重复。 | mode 与 `running`／`inactive` 活动状态会同时以文字和视觉呈现；可选 title、持久化 token 用量与活跃轮次耗时来自列表保留的投影值。紧凑耗时从一天起省略更小的单位，而悬停和无障碍名称仍保留精确的整秒数。`SessionHeader.origin` 会移除重复的导航条目，但不授予任何功能权限。 |
|
||||
|
||||
## 产品契约
|
||||
|
||||
只有当完整的直接目录空响应与会话摘要投影相符，二者均表明没有已知的 subagent 后代时，才不显示页头操作。其触发器会统计经不间断的 `origin: 'subagent'` 谱系可达的每个已知会话摘要后代，在普通 fork 处停止，并在任一计入统计的后代处于 `running` 时显示活动仍在进行。每个健康的直接目录行都携带读取时的 `hasChildren` 提示，该值只根据持久化 `origin: 'subagent'` 的直接谱系 header 派生；正常的健康与 diagnostic subagent 候选都会携带该标记，而普通 fork 不会。该预查不读取任何后代事件日志，展开后仍以描述符支撑的目录为权威依据。当摘要在该目录尚不存在时或在一次陈旧的空响应后确认已有后代时，该操作会保持可见，并且在打开它以刷新目录之前仅显示禁用的加载行；仅由摘要支撑的行绝不会提供导航能力。UI 会在交互前就省略已知叶子节点的展开控件；该提示不承诺 child 会一直是叶子。已展开的直接目录加载期间，已知谱系会为每个直接后代预留一行禁用的加载行，而不会递归获取后代目录。随后树会呈现可继续与 one-shot 行；one-shot 的可选 label 缺失时，回退到其会话 id。损坏、不受支持或不可用的候选仍以禁用的 diagnostic 行显示。
|
||||
|
||||
`running` 表示在 Host 采样边界，确切 child Agent driver 正在处理工作；`inactive` 表示该 driver 空闲或不存在。UI 不会把任一值解释为成功、失败、取消、完成状态或可恢复性。`subagent.list` 提供当前 driver 状态基线，`host/session-status` 会就地更新已知活动状态，请求内回放会阻止更早发起但尚未完成的列表响应覆盖较新的状态转换，`host/session-removed` 则会使已知行恢复为 `inactive`；重连时会读取新的基线。直接 subagent 的 `host/session-added` 帧会立即把任何已加载的 parent 行翻转为 `hasChildren: true`，并使这项正向提示不被更早发起但尚未完成的目录响应覆盖；受影响分支打开期间，成员、label、mode、diagnostic 与权威快照仍需要通过去抖动的 `subagent.list` 刷新来更新。消息投递时仍以提示词响应为权威依据。
|
||||
|
||||
健康行会复用列表镜像中保留的标准会话投影。token 用量数值会汇总持久化日志中四个互不重叠的 `tokenUsage` 桶。`subagentTiming` 会在每个描述符处重置，使继承的 fork 种子不会计入 child 总量；它会累加已完成的 `turn/start` → `turn/end` 时段，并携带未结束轮次同一切面的 `active.since` 和 `active.through` 边界。该轮次保持未结束期间，现有会话事件会推进 `active.through`；菜单不会增加单独的计时器或日志读取，且仅在有已知后代处于运行状态时才推进其本地时钟。不足一天时，菜单会以整秒格式化时间；达到一天后的视觉值最多保留两个相邻单位，其中月份按近似 30 天计算，年份按近似 365 天计算，而悬停信息与无障碍名称会保留精确的天／小时／分钟／秒耗时。对 inactive 行，菜单以 `active.through` 为被中断未结束轮次的上界，因此陈旧投影绝不会借用更新的会话元数据，且重新打开菜单绝不会让已完成工作重新计时。这两项指标都不蕴含持久化结果语义。
|
||||
|
||||
选择一行后，系统会先记录其确切地址，再打开常驻客户端 `Session`。历史分页、事件 fold、工具渲染意图、title 与实时 mux 归并都会复用普通对话机制。面包屑导航使用目录 label，只会沿 `origin: 'subagent'` 行的父链接逐级回溯，包含第一个普通 owner，并让普通 fork 保持单层。从已寻址 subagent 创建 fork 时，会生成具有直接源谱系的普通 fork，并将其附加到最近拥有 Workspace 的祖先。目录是一棵 ARIA 树，支持懒加载式 ArrowRight／ArrowLeft 展开与折叠、线性 ArrowUp／ArrowDown 导航、Home／End、Escape 以及焦点恢复。
|
||||
|
||||
one-shot 行始终会用文案替代输入框，说明执行记录为只读。可继续行仅在 `parentAvailable` 为 false 时如此。启用后，即使 child 正在运行，其 Send 操作也会准入另一个 FIFO 轮次，绝不会变成 Stop。提示词失败会通过普通错误行为保留草稿。
|
||||
|
||||
已寻址 child 视图不提供绑定到 agent 的辅助控件。具体而言，模型选择器与 `/model` contribution 不会调用普通 `session.models` 或 `session.selectModel`；Host 也会拒绝任何意外调用，而不是在直接 parent 继续执行 seam 之外激活持久化 child 历史。
|
||||
|
||||
## 宿主适配器与协议契约
|
||||
|
||||
`@deepseek-ai/dsh-host-apiproxy` 拥有浏览器安全的 `subagents` 域：
|
||||
|
||||
- `subagent.list` 接受 `parentSessionId`，调用 `ctx.subagents.listChildren(parentSessionId, signal)`，返回完整有序的条目以及每个健康行的布尔 `hasChildren` 快照，把每个健康行的语料活动状态替换为其确切 Agent driver 是否正在运行，并说明当前能否从 `ctx.agents` 解析出确切 parent。
|
||||
- `subagent.history` 接受包含 mode 的完整地址与普通页参数。它对照直接目录校验 child 与 mode，通过 `ctx.sessionQuery.readSession()` 读取，再次检查直接谱系，并在不发布 agent 的情况下返回普通原始事件、渲染意图、分页与由 Host 计算的会话投影基线。
|
||||
- `subagent.prompt` 只接受 `mode: 'continuable'` 地址与 `ContentBlock[]`。它要求确切的存活 parent，重新校验目录地址，调用 `ctx.subagents.followup(parent, childId, content, { source, signal })`，并返回已接受的 `MessageId`。
|
||||
|
||||
网关会将 parent 缺失、目录条目缺失或为 diagnostic、child 不可恢复或未授权、请求取消以及继续执行准入暂时不可用等失败映射为类型化 RPC 错误。它不会公开描述符或提供方细节。list／prompt 竞态属于正常情况：权威依据是提示词操作的结果，而不是更早的可用性或活动快照。
|
||||
|
||||
查看持久化历史本身不会创建 mux 订阅。当后续消息物化冷态 child Activation 时，现有 Host 与 mux 流会发布其生命周期与事件。重新连接时，系统通过 `subagent.history` 重建已寻址窗口。
|
||||
|
||||
普通 `session.history` 路由对于普通会话和 subagent 会话同样只执行观察，但它既不携带目录地址，也不授予继续执行权限。每条需要 Agent 的普通路由都会在恢复冷会话前经过共享所有权栅栏；`session.cancel` 与 `session.updateQueue` 会直接执行同一检查，因为它们有意只查询已附加的 Agent。
|
||||
|
||||
适配器仍位于 `dsh-host-apiproxy`；`dsh-host-webserver` 仍作为载体。浏览器代码通过现有连接包（package）导入契约，绝不直接访问宿主 `ctx`，从而保持 [GUI RPC 分层](../../implemented/architecture/2026-07-19-gui-layering-and-rpc-protocol.md)。
|
||||
|
||||
## 客户端对象层与呈现
|
||||
|
||||
不依赖 React 的运行时负责目录、单次并发刷新、保留的地址、可用性提示、传输选择，以及每个列表行当前投影值的引用稳定映射。再次选择已知 child 时会保留其地址，避免导航静默切换到普通会话 API。缺失的中间面包屑地址可以从已加载的祖先目录恢复，但在用户选择该面包屑之前不会保留为传输地址，也不会创建 scope。恢复的导航会持久化包含 mode 的完整地址。
|
||||
|
||||
目录通过标准 `useSessions` 快照传递。组件局部状态负责菜单可见性、已展开分支与焦点。`ui-conversation` 声明通用页头操作列表 slot，并通过其编辑器链分发当前对话快照；其中没有 subagent 专用的接管标记。`@deepseek-ai/dsh-client-ui-subagent` 注册目录操作，并根据普通 owner props 选择按原因区分的只读编辑器。组件只接收派生 props 与回调，绝不接收 `ctx`。
|
||||
|
||||
每个进程内 subagent child 都会在发布前写入 `SessionHeader.origin: 'subagent'`。会话列表摘要与增量 Host 帧会投影该字段，使分组和扁平侧边栏省略重复的 child 行，同时保留普通 fork。同一条现有的 `host/session-added` 帧还会把已加载的直接 parent 行标记为可展开，而无需引入目录事件流。描述符 mode 与目录校验仍然是导航、继续执行和授权的权威依据。
|
||||
|
||||
该包现有的 `@label` source 仍然是独立的面向模型纯文本输入。它不会将 label 解析为地址，也不会获得继续执行语义。
|
||||
|
||||
## 默认 Web 组合
|
||||
|
||||
已交付的 Web 组合会在 JSONL 持久化旁挂载 SQLite 会话查询，并将 spawn 与 fork 后台委派配置为可继续模式。它还会挂载面向模型的 `send_message` 与 `list_agents` 适配器，以保持 coordinator 对等性，但 GUI 会通过宿主 RPC 域调用共享的 `SubagentService`，而不是调用模型工具。one-shot child 仍在目录中可见且只读。
|
||||
|
||||
## 备选方案
|
||||
|
||||
**对已寻址 child 使用普通会话 API。** 不予采纳，因为通用历史不携带目录 mode 校验，而绑定到 Agent 的通用控件会有意拒绝 subagent，不会授予直接 parent 继续执行授权。
|
||||
|
||||
**将适配器放入 webserver。** 不予采纳，因为目录与继续执行是通道无关的客户端功能；webserver 只承载已校验的消息。
|
||||
|
||||
**新建 UI 包。** 不予采纳，因为 `ui-subagent` 已经负责 Web subagent 引用，也是目录与已寻址 child 呈现的统一 owner。
|
||||
|
||||
**自动恢复缺失的 parent。** 不予采纳，因为继续执行要求确切的存活直接 parent。child 导航不得改变 parent 生命周期。
|
||||
|
||||
**公开普通取消操作。** 不予采纳，因为已获 inbox 接受的轮次会比其准入请求存续更久，而继续执行 seam 不会公开具备安全授权的取消句柄。
|
||||
|
||||
**只显示可继续 child。** 不予采纳，因为持久化目录有意描述由会话支撑的两种 mode。one-shot transcript 即使绝不接受后续消息，仍然有用。
|
||||
|
||||
**根据谱系推断 mode 或侧边栏过滤。** 不予采纳，因为普通 fork 共享 `parentSession`。由描述符支撑的目录负责提供 mode；单独的 `origin` 标记只是低成本的导航分类器。
|
||||
|
||||
**构建预先加载的递归树或专用目录流。** 就当前规模而言不予采纳。只读 header 的一层可展开性预查会在不读取后代事件的情况下保证点击前的稳定性，而展开仍是懒加载式权威直接 child 读取；现有 Host 帧会更新活动状态、恢复 parent 行的可展开性，并触发有界的成员刷新。
|
||||
|
||||
**让 child 在 parent 消失后仍能独立交互。** 不予采纳，因为独立生命周期与用户所有权需要 side session 语义。
|
||||
|
||||
## 测试
|
||||
|
||||
- 宿主协议测试固定 schema（包括必需的布尔可展开性）、id 回显、mode 校验、非激活式历史、确切 parent 强制要求、FIFO 准入回执、取消与脱敏后的失败映射。
|
||||
- 通用 Host 测试固定在不发布 Agent 的情况下读取已附加与冷态历史及执行 fork、冷态投影归并、按描述符／origin／运行时 owner 拒绝、拒绝显式 id 接纳，以及直接队列控制栅栏。
|
||||
- 客户端对象测试固定已保留与已恢复的地址、one-shot 只读拒绝、历史路由、可继续提示词路由、已寻址对话不提供取消、屏蔽绑定到 agent 的模型控件、实时活动状态翻转（包括在途响应回放与 detach 回退）、subagent parent 可展开性翻转与成员刷新。
|
||||
- jsdom 测试固定后代聚合计数与活动状态、token 用量总计、精确到秒的运行中耗时与冻结后 inactive 耗时、采用自适应单位的长耗时及其精确无障碍文本、目录缺失或为陈旧空目录时由摘要支撑的根操作、已知加载行的形态、混合 mode 行、点击前的叶子展开控件、diagnostic、后代懒加载展开、直接 parent 地址、键盘行为与两种只读原因。
|
||||
- 无密钥的组装 Web 快照包含一个具有持久化 token 用量的 inactive 可继续 child、一个具有确定性长耗时的 inactive one-shot sibling 和一个持久化 grandchild；它会固定触发器在一次陈旧的空目录响应后仍显示三个后代，并固定 token 用量与计时行、自适应长耗时呈现以及聚合 `running` 状态转换，在不激活的情况下展开、打开持久化历史、准入一条用户 FIFO 后续消息、归并 child mux 事件，并证明 one-shot 历史仍然只读。
|
||||
- 导航测试固定仅含 subagent 的面包屑导航、从 subagent 创建 fork 时的 Workspace 归属，以及 `origin: 'subagent'` 侧边栏过滤，同时不隐藏普通 fork。
|
||||
|
||||
## 后果
|
||||
|
||||
- 目录读取可能重新扫描持久化谱系与每个直接候选的描述符日志，但可展开性只复用该追踪中已有的后代 header；Web 活动基线会为每个健康行增加一次 Agent 注册表查找，随后使用现有实时帧，而 token 用量与耗时会复用投影基线和推送，无需按行读取日志，成员刷新则保持去抖动和单次并发。
|
||||
- parent 可用性、child 活动状态与 `hasChildren` 都是快照。列出之后，发布、dispose、其他发送方或其他进程都可能抢先改变状态；类型化提示词失败仍属预期行为。
|
||||
- child 可能在历史获取与 mux 订阅之间发布，因此现有序号归并也涵盖从冷态转为存活的已寻址路径。
|
||||
- 持久化 origin 会为 child header 与列表投影添加一个有意保持弱约束的产品分类字段；它不能变成授权捷径。
|
||||
- UI 不提供 child 取消、持久化结果、Activation 身份、删除或可独立交互的离线 mode，其文案不得暗示这些功能已经存在。活跃轮次耗时度量的是已记录工作，而非 Activation 驻留时间。
|
||||
@@ -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/2026-07-27-workspace-registration-deletion.md
|
||||
2026-07-27-workspace-registration-deletion.md: 8168b0832ca39e6023f6981815ffe758b5695361
|
||||
2026-07-27-workspace-registration-deletion.zh.md: b0df6982ac81426a5b0ce2f0e2b0e744212e3f5b
|
||||
2026-07-27-workspace-registration-deletion.md: ae12b09979f20385336eef8d805173dd9c08d887
|
||||
2026-07-27-workspace-registration-deletion.zh.md: 2e43b25ec0b68703d68f6346796482d1c5ed3e8a
|
||||
|
||||
@@ -28,7 +28,7 @@ Create and delete write a durable `pendingMutation` before their record/order pa
|
||||
|
||||
`WorkspaceManager` treats both `host/workspace-changed` and `host/workspace-removed` as ordered deltas replayed over an in-flight `workspace.list` response. A successful unary delete removes the row immediately instead of waiting for its own stream echo. Removal is idempotent, and a process-local tombstone rejects late changed frames or stale baseline rows for the never-reused Workspace id. A reconnect still refreshes from `workspace.list`; Session state is never pruned by a Workspace delta.
|
||||
|
||||
The delete confirmation remains pending until the React Workspace projection has committed the removed id, so the next create gesture cannot observe one stale list frame. During create, duplicate-name validation is suppressed while the request is pending because the committed `host/workspace-changed` frame may publish the newly created Workspace before its unary response; after failure returns the form to editing, validation uses the latest list again.
|
||||
The delete confirmation remains pending until the React Workspace projection has committed the removed id, so the next Workspace gesture cannot observe or target one stale list frame.
|
||||
|
||||
## Confirmation interaction
|
||||
|
||||
@@ -50,7 +50,7 @@ The menu, Modal, and buttons retain their existing structure and design tokens.
|
||||
|
||||
## Verification
|
||||
|
||||
Workspace package tests pin successful metadata-only deletion, same-path re-registration, unknown-id idempotence, table-failure rollback, explicit-marker restart recovery, unexplained-corruption rejection, and cache/table invariant behavior. Apiproxy and carrier tests pin the schema, handler, `workspace-not-found`, retained Session/folder, fresh-id re-registration, and committed `host/workspace-removed` frame. Client tests pin unary direct echo, duplicate removal, late changed frames, and deletion racing an in-flight baseline. Component tests pin confirmation, projection-settled closing, pending-state duplicate suppression, success-frame-before-unary ordering, failure, Cancel, Escape, and Close. The browser scenario observes every transient alert, slot error, console error, and page error while reusing a deleted title for a different directory.
|
||||
Workspace package tests pin successful metadata-only deletion, same-path re-registration, unknown-id idempotence, table-failure rollback, explicit-marker restart recovery, unexplained-corruption rejection, and cache/table invariant behavior. Apiproxy and carrier tests pin the schema, handler, `workspace-not-found`, retained Session/folder, fresh-id re-registration, and committed `host/workspace-removed` frame. Client tests pin unary direct echo, duplicate removal, late changed frames, and deletion racing an in-flight baseline. Component tests pin confirmation, projection-settled closing, success-frame-before-unary ordering, failure, Cancel, Escape, and Close. The browser scenario observes every transient alert, slot error, console error, and page error while reusing a deleted title for a different directory.
|
||||
|
||||
The assembled keyless Web scenario registers an existing temporary project directory, accounts a persisted Session, makes that Session current, confirms deletion in Chromium, and verifies the Workspace group disappears while Ungrouped retains the current Session. It checks the user file and JSONL log before and after deletion and repeats the UI, directory, and log assertions after reload.
|
||||
|
||||
|
||||
@@ -28,7 +28,7 @@ Create 与 delete 会在记录／顺序对可能分叉之前写入持久 `pendin
|
||||
|
||||
`WorkspaceManager` 将 `host/workspace-changed` 与 `host/workspace-removed` 都视为有序增量，并在进行中的 `workspace.list` 响应之上回放。成功的一元删除会立即移除行，无需等待本次操作自己的流回显。移除操作具有幂等性；由于 Workspace id 永不复用，进程本地删除标记会拒绝延迟到达的 changed 帧或陈旧基线行。重连仍从 `workspace.list` 刷新；Workspace 增量绝不会剪除会话状态。
|
||||
|
||||
删除确认框会保持待处理，直到 React Workspace 投影已经提交目标 id 的移除，因此下一次创建操作不会读到一帧陈旧列表。创建请求进行中会暂停重复名称校验，因为已提交的 `host/workspace-changed` 帧可能先于一元响应发布刚创建的 Workspace；如果请求失败并让表单回到可编辑状态，系统会重新使用最新列表执行校验。
|
||||
删除确认框会保持待处理，直到 React Workspace 投影已经提交目标 id 的移除，因此下一次 Workspace 操作不会观察或定位到陈旧列表帧中的内容。
|
||||
|
||||
## 确认交互
|
||||
|
||||
@@ -50,7 +50,7 @@ Create 与 delete 会在记录／顺序对可能分叉之前写入持久 `pendin
|
||||
|
||||
## Verification
|
||||
|
||||
Workspace 包测试固定了仅删除元数据的成功路径、同路径重新注册、未知 id 的幂等行为、表操作失败回滚、明确标记的重启恢复、来源不明损坏的拒绝，以及缓存／表不变量行为。Apiproxy 与载体测试固定了 schema、处理器、`workspace-not-found`、保留会话／文件夹、使用新 id 重新注册，以及已提交的 `host/workspace-removed` 帧。客户端测试固定了一元直接回显、重复移除、延迟到达的 changed 帧，以及删除与进行中基线并发的行为。组件测试固定了确认交互、投影稳定后关闭、待处理状态下抑制重复提交、成功帧先于一元响应、失败、Cancel、Escape 与 Close。浏览器场景会在为不同目录复用已删除名称时，观测每一次瞬时 alert、slot error、console error 与 page error。
|
||||
Workspace 包测试固定了仅删除元数据的成功路径、同路径重新注册、未知 id 的幂等行为、表操作失败回滚、明确标记的重启恢复、来源不明损坏的拒绝，以及缓存／表不变量行为。Apiproxy 与载体测试固定了 schema、处理器、`workspace-not-found`、保留会话／文件夹、使用新 id 重新注册，以及已提交的 `host/workspace-removed` 帧。客户端测试固定了一元直接回显、重复移除、延迟到达的 changed 帧，以及删除与进行中基线并发的行为。组件测试固定了确认交互、投影稳定后关闭、成功帧先于一元响应、失败、Cancel、Escape 与 Close。浏览器场景会在为不同目录复用已删除名称时，观测每一次瞬时 alert、slot error、console error 与 page error。
|
||||
|
||||
组装后的无密钥 Web 场景会注册一个已有临时项目目录，将持久化会话计入账本，把该会话设为当前会话，在 Chromium 中确认删除，并验证 Workspace 分组消失，而 Ungrouped 保留当前会话。该场景在删除前后检查用户文件和 JSONL 日志，并在刷新后重复验证 UI、目录与日志。
|
||||
|
||||
|
||||
@@ -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/2026-07-28-continuable-subagent-conversations.md
|
||||
2026-07-28-continuable-subagent-conversations.md: a5a900c3bb30a8d965aabc0bf498f8399ee70e7a
|
||||
2026-07-28-continuable-subagent-conversations.zh.md: bde8e874ba27950dc0fab8449c6ba2ee49737d41
|
||||
@@ -0,0 +1,216 @@
|
||||
# Agent Note: Continuable subagents
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-28-continuable-subagent-conversations.zh.md)
|
||||
|
||||
This record replaces the Task-backed continuation manager from [Continuable background subagents](../../implemented/feature/2026-07-21-continuable-background-subagents.md). It retains the single `ctx.subagents` service from [Merge subagent control into the subagent service](../../implemented/simplification/2026-07-26-merge-subagent-control-service.md) and the intent-named `followup` operation from [Intent-named subagent continuation operations](../../implemented/simplification/2026-07-27-intent-named-subagent-continuation-operations.md).
|
||||
|
||||
## Problem
|
||||
|
||||
The previous continuation manager made one Task, one provider execution, and one result boundary the same object lifetime. Task settlement disposed the child Agent, Task completion injected the completion notice, and later input reconstructed another Agent. That coupled a generic background-work abstraction to conversation delivery even though a continuable subagent already has a Session and an Agent inbox.
|
||||
|
||||
Giving queued continuation requests to the manager while the Agent retained its own inbox would create two FIFOs with no single ordering authority. Giving all messages to Tasks instead duplicated the Agent loop's admission, cancellation, and quiescence machinery. `Agent.whenIdle()` cannot recover a per-request Task result because one running interval may drain multiple queued turns, and broad `Agent.cancel()` cannot remove one queued request exactly.
|
||||
|
||||
The runtime lifetime is also wider than one turn. A subagent can finish its own turn while a child it created is still running. Disposing the parent runtime at that point removes the Agent that still owns descendant teardown. Keeping every historical subagent resident instead would make memory use unbounded.
|
||||
|
||||
Parent Agents need to send later work to the same live child without changing its current turn. Queueing every continuation message as a follow-up preserves one ordering rule.
|
||||
|
||||
## Decision
|
||||
|
||||
A continuable subagent has one durable Session and at most one process-local Activation:
|
||||
|
||||
```text
|
||||
persisted Session
|
||||
-> optional live Activation
|
||||
-> one retained AgentHandle
|
||||
-> Agent inbox as the only turn FIFO
|
||||
-> zero or more owned child Activations
|
||||
```
|
||||
|
||||
An Activation is one residency epoch for a reconstructed child Agent. It may execute multiple FIFO turns and remain resident while waiting for descendants. It is not a request, result, cancellation, or Task boundary.
|
||||
|
||||
The continuation manager owns activation admission, authority checks, the live ownership graph, cold resume, and child-first disposal. The Agent loop owns all turn ordering and execution. No continuable subagent has a Task, an Activation FIFO, or queued Activation state.
|
||||
|
||||
### Materialization and public operations
|
||||
|
||||
The named subagent provider participates only in preparing the initial creation spec, where `spawn` and `fork` differ. Its optional `prepareContinuable(request): Promise<ContinuableCreateSpec>` method is the continuable-creation capability. The returned spec contains only detached provider-specific creation inputs such as the optional parent-history seed; it contains no Agent, `AgentHandle`, prompt delivery, result, disposal, or resume operation. The manager reserves the child identity, resolves the durable descriptor and common Agent setup, calls `ctx.agents.create()` through a private activation-owner scope, installs the returned `AgentHandle` into the Activation, establishes any continuable-parent ownership, and then calls `Agent.followup(initialPrompt)`. Inbox acceptance yields a `MessageId`; at that boundary `ctx.subagents.startContinuable()` returns `{ childId, messageId }` without waiting for the turn to start or for the message to enter the Session log.
|
||||
|
||||
Any failure before inbox acceptance rejects without returning either id. Agent creation provides rollback before handle transfer; after transfer, the manager keeps one closing transaction visible to concurrent delivery and drain, disposes the created handle, removes the Activation, and rolls back any parent `ownedChildren` membership before rejecting. Failure before the residency start edge publishes no terminal edge, while failure after a published start closes the lifecycle pair through normal disposal.
|
||||
|
||||
`backgroundMode: 'one-shot' | 'continuable'` remains deployment policy. Configured continuable mode requires `prepareContinuable`; method presence replaces `SubagentProvider.resume?()` as the capability check, while a capable provider may still run one-shot work.
|
||||
|
||||
Cold resume does not dispatch through a subagent provider. The continuation manager folds the generic in-process descriptor, calls `ctx.agents.resume()` through the same activation-owner scope, installs the returned `AgentHandle`, and submits the waiting `next-turn`. `SubagentProvider.resume?()` and `SubagentProviderResumeRequest` are absent. The initial provider name remains lifecycle provenance after that provider unregisters; it is not a recovery capability or a requirement for later residency. Remote providers require a separate design.
|
||||
|
||||
`SubagentProvider.start()` and `SubagentRun` remain exclusively on the unchanged one-shot path. A continuable Activation directly owns its `AgentHandle` and never creates, wraps, or retains a `SubagentRun`; `SubagentRun.steer?()` is therefore absent.
|
||||
|
||||
`ctx.subagents.followup(parent, childId, content, { source, signal })` remains the sole parent-to-child continuation-message operation. The exact live parent Agent authorizes delivery; cold resume checks that authority before reconstruction and every path checks it again in the final no-await inbox-admission span, so a parent unregistered or replaced during materialization cannot authorize delivery. `source` remains durable provenance and grants no authority. The model-facing `send_message` tool keeps only its stable `subagent_id` and `message` fields and always submits a follow-up turn. Both start and follow-up return the accepted `MessageId`, and neither reports how the manager materialized the Activation.
|
||||
|
||||
For start and follow-up, the caller signal owns lookup, materialization, and admission only until inbox acceptance. After the operation returns its `MessageId`, the manager owns the Activation independently; later caller cancellation does not cancel the accepted turn or dispose the child.
|
||||
|
||||
### Durable Session and live Activation
|
||||
|
||||
The Session owns the stable child identity, transcript, direct-parent lineage, delegation depth, and versioned continuation descriptor. `SessionHeader.parentSession` is durable provenance and an authorization input; it is not a live routing capability and does not imply that the historical parent is resident.
|
||||
|
||||
An idle historical Session has no `AgentHandle`. The first authorized `next-turn` delivery resumes an Activation from the persisted Session and submits the message to its inbox. Cold resume uses the exact live parent Agent for authorization and, when that parent has an Activation, ownership; it never uses the parent for reconstruction.
|
||||
|
||||
The Activation directly owns the published `AgentHandle` until it settles, while the manager's private activation-owner scope is its structural Cordis owner. The continuable path creates no intermediate result-bearing execution wrapper, including `SubagentRun`; one-shot delegation remains unchanged and outside this lifecycle. Remote providers are out of scope here and require a separate Activation ownership contract when introduced. Historical Sessions consume no runtime memory after their Activation is disposed.
|
||||
|
||||
### Activation lifecycle
|
||||
|
||||
The internal residency lifecycle has three conditions and no separate `queued` state:
|
||||
|
||||
```text
|
||||
running
|
||||
| Agent quiescent with live children
|
||||
v
|
||||
waiting
|
||||
| next-turn
|
||||
+--------------------------> running
|
||||
|
||||
running or waiting
|
||||
| Agent quiescent and no live children
|
||||
v
|
||||
settled
|
||||
| AgentHandle.dispose completes
|
||||
v
|
||||
no Activation
|
||||
```
|
||||
|
||||
`running` means the Agent has an active admission or turn, or its inbox contains waking work. `waiting` means the Agent is quiescent but the Activation still owns at least one child Activation that has not completed disposal. `settled` means the Agent is quiescent and every owned child is disposed; the manager then disposes the `AgentHandle` and removes the Activation.
|
||||
|
||||
The manager derives these states from Agent quiescence and the owned-child set rather than maintaining a second execution state machine. A `next-turn` delivered while `running` joins the Agent inbox. A `next-turn` delivered while `waiting` wakes the same Agent and returns the Activation to `running`. Delivery after disposal cold-resumes a new Activation.
|
||||
|
||||
The manager linearizes delivery, child release, and disposal for each durable child. If a delivery races with final disposal, exactly one side wins the admission cutoff: delivery either enters the still-live Agent inbox, or waits for disposal and cold-resumes a new Activation. No caller can send to a handle after its disposal transaction begins.
|
||||
|
||||
### One inbox and follow-up delivery
|
||||
|
||||
The Agent inbox is the only queue. Every continuation message uses `Agent.followup()` and becomes one FIFO turn; neither the continuation manager nor the host maintains another message queue. Every accepted waking item keeps the current Activation live until `Agent.whenIdle()` observes the complete waking suffix.
|
||||
|
||||
Routing depends only on Activation residency:
|
||||
|
||||
| Activation state | `followup` |
|
||||
|---|---|
|
||||
| `running` | enqueue in the same Activation |
|
||||
| `waiting` | wake the same Activation |
|
||||
| no Activation | cold-resume a new Activation |
|
||||
|
||||
The continuation layer defines no separate delivery-route result. Successful `ctx.subagents.followup()` and `send_message` delivery returns the accepted `MessageId`, while delivery failure throws. Existing `agent/inbox/enqueue`, `agent/inbox/dequeue`, and `agent/inbox/discard` events remain the message-lifecycle observations; adapters may render a generic acceptance but do not expose `started`, `queued`, `resumed`, or another subagent-specific route vocabulary.
|
||||
|
||||
### Child ownership
|
||||
|
||||
Every Activation owns its `AgentHandle` and an `ownedChildren: Set<SessionId>`. Because one Session has at most one live Activation, the child Session id identifies the live child without another runtime-incarnation reference. `SessionHeader.parentSession` records the durable direct-parent identity, while membership in `ownedChildren` records the process-local ownership relationship.
|
||||
|
||||
When the authenticated parent is itself a continuation-managed Activation, starting a child or submitting parent-originated work adds the child Session id to that parent's `ownedChildren` before the child can run or the message can enter its inbox. That parent cannot settle or dispose while this set is non-empty. A top-level or other non-continuation Agent has no Activation and does not join this waiting graph.
|
||||
|
||||
Child release occurs only after the child Agent is quiescent, every child of that child is disposed, the best-effort final session flush settles, and the child's `AgentHandle` completes disposal. The manager awaits `ctx.sessions.flush(child.session)` but does not interpret its participation boolean: an arbitrary listener cannot prove that the selected persistence backend stored the state. A rejection is logged without preventing handle disposal or ownership release, because retaining a child would permanently pin its ancestors in `waiting`. If the child is owned, the manager then resolves the live parent through `SessionHeader.parentSession` and removes the child Session id from its `ownedChildren`. Manager teardown uses the same child-first order.
|
||||
|
||||
Ownership is retained until the child Activation is disposed. A later refinement may release a request-scoped lease earlier, but it would require an exact turn-completion correlation that this Task-free proposal deliberately does not add.
|
||||
|
||||
Top-level teardown is host-owned rather than represented as another Activation. Manager unload invokes its internal manager-wide drain to close admission synchronously, await every admitted materialization through publication or rollback, stop the stable live forest, and release it child-first. A host that owns selected top-level Agents uses `drainContinuableDescendants(parents)`: exact Agent identities close admission only below those roots until each leaves the registry, while unrelated forests and manager-wide admission remain live; the manager stops their visible descendants before its first await, waits only materializations admitted below those roots, and releases only the selected branches. Every materialized start and live delivery rechecks caller cancellation, the applicable draining scope, Activation disposal, and exact parent authority in the same synchronous span as inbox submission, so teardown or parent replacement that wins before acceptance prevents delivery to the closing handle. Only after the applicable drain settles may the host dispose its top-level Agents; only manager-wide drain precedes manager-scope disposal.
|
||||
|
||||
The activation-owner scope exists because ordinary Cordis owner effects unwind in reverse registration order, which cannot express the dynamic child graph. Manager initialization registers the private scope's structural disposer first and its drain disposer afterward, so reverse unwind invokes the drain before releasing that scope; merely registering a cleanup effect on the same scope as later Agent handles would allow structural handle disposal to bypass child-first ordering. Each materialization registers its barrier participant and snapshots its exact live ancestry before starting the inner transaction, then remains tracked until it installs an Activation or fully rolls back. The Activation retains weak membership of that ancestry, so an intermediate Agent may leave the registry without hiding a still-live descendant from its host root. Each Activation installs one memoized disposal promise before cancellation or recursive callbacks, allowing scoped host shutdown, global manager unload, child release, and normal settlement to converge without double release. Cancellation propagates top-down before slow descendant cleanup; handle release remains child-first. Sibling branches drain independently; one disposal failure is recorded but does not prevent the manager from attempting the remaining selected handles, and the aggregate drain reports failure after all selected branches settle. Durable child Sessions survive this process-local teardown.
|
||||
|
||||
### Report delivery extension
|
||||
|
||||
The optional child-scoped `report(output)` tool was added later without changing Activation residency or adding another queue. It can be called zero or multiple times per turn, derives the live direct parent rather than accepting a recipient, and selects quiet injection or a waking parent follow-up through deployment config. The [report-tool Agent Note](2026-07-30-continuable-subagent-report-tool.md) owns its authority, acknowledgement, setup-contribution, and delivery contracts.
|
||||
|
||||
### Deferred steering
|
||||
|
||||
This version exposes no subagent steering operation. Parent continuation messages always open later FIFO turns, so the continuation layer stores no current-turn controller and adds no controller-aware Agent admission seam.
|
||||
|
||||
A later host UI may expose separate **Steer** and **Follow up** actions. Host steering would be strict and live-only: it may call the existing Agent steering path only while the Activation accepts a next step, must reject otherwise, and must never fall back to queueing or cold resume. Exposing parent steering to a model-facing tool remains a separate design.
|
||||
|
||||
### Authority and provenance
|
||||
|
||||
Authority is supplied by an exact live Agent tool context. `MessageSource` and `senderSessionId` are durable provenance after admission, not caller-controlled authority.
|
||||
|
||||
This version authorizes only the durable child's direct parent. The manager checks `SessionHeader.parentSession` against the exact live parent Agent at the final no-await inbox-admission boundary before registering the child in that parent's `ownedChildren`; cold resume also performs an earlier check before reconstruction for fail-fast rejection. Other Agents, ancestors, hosts, teams, and workflows remain rejected until a concrete consumer justifies another authority protocol.
|
||||
|
||||
Parent-originated delivery requires the parent to be live when admitted and keeps it live through the ownership relationship.
|
||||
|
||||
### Durability, disposal, and recovery
|
||||
|
||||
Without Tasks there is no `task_output`, `task_kill`, Task status, per-message result promise, or public subagent cancellation operation. The caller signal can abort start or follow-up only before inbox acceptance. After acceptance, the parent cannot cancel the message, turn, or Activation through `ctx.subagents`; `Agent.cancel()` remains a lower-level Agent capability that this version does not expose through the subagent service.
|
||||
|
||||
Host and manager teardown remains the lifecycle stop path. Manager unload applies it globally; a host applies it only below the exact top-level Agents it owns. Each form closes the applicable admission scope, stops the selected visible Activations, awaits admitted materializations in that scope, releases child-first, and preserves the durable Sessions.
|
||||
|
||||
Each turn requests the Session durability checkpoint, while final Activation settlement additionally awaits `ctx.sessions.flush()` as a best-effort barrier. The manager deliberately ignores the boolean result because listener participation cannot identify a persistence backend. A rejection is logged without changing the lifecycle result or host-drain outcome; the manager still disposes the handle and releases ownership, and the persisted child state may be missing or stale on a later resume.
|
||||
|
||||
Only messages written to the child Session log are reconstructable with their admitted provenance; inbox acceptance alone provides no restart guarantee.
|
||||
|
||||
Session and descriptor persistence survive restart. Activation state, Agent inbox contents, and the ownership graph are process-local. A process crash may lose an accepted initial prompt or follow-up that remained in the inbox without reaching the Session log. The Session and descriptor may survive so a later authorized message can cold-resume the child, but the lost message is not replayed automatically. Recovering accepted unfinished or unlogged messages requires a durable inbox protocol and is not implied here.
|
||||
|
||||
### Scope
|
||||
|
||||
This version covers continuable in-process children and leaves one-shot delegation unchanged. Remote providers require a separate Activation handle with equivalent authenticated control and child-first quiescence contracts before they can support the same behavior.
|
||||
|
||||
It adds no host-user continuation, subagent steering operation, durable mailbox, cross-process lease, automatic replay of interrupted inbox work, team authority, workflow authority, public subagent cancellation operation, public residency query, new live-Activation or descendant limit, or runtime cache. Existing delegation-depth policy remains unchanged. Optional child-to-parent reporting is a later consumer of this lifecycle rather than part of the base continuable capability.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Keep Task-backed Activations.** Tasks provide generic status, result collection, and cancellation, but using them for conversation delivery creates a second queue and duplicates turn ownership. The proposal gives up those generic Task controls so the Agent inbox remains the only execution order.
|
||||
|
||||
**Create one Activation per `next-turn`.** This restores independent result and cancellation boundaries, but it requires a manager FIFO beside the Agent inbox and makes a retained Agent cross artificial Activation boundaries. One Activation per residency epoch is smaller and follows the `AgentHandle` lifetime directly.
|
||||
|
||||
**Dispose the Agent while waiting.** Reconstructing a parent while its child still belongs to the previous process-local ownership graph would require a durable ownership and teardown protocol. Retaining the `AgentHandle` only for the unfinished graph preserves child-first teardown without keeping settled history resident.
|
||||
|
||||
**Let the provider create, resume, or deliver through an Agent handle.** Initial providers own only `prepareContinuable()` and its detached creation-spec distinction: whether a child begins fresh or with a parent prefix. The manager must call `ctx.agents.create()` through its private activation-owner scope so that scope is a structural owner of every handle. A persisted in-process Session already contains the initial prefix and generic reconstruction descriptor, while delivery belongs to the Agent inbox. Giving providers any later handle, `SubagentRun`, or message ownership would preserve a seam with no shipped behavior to own.
|
||||
|
||||
**Make report delivery part of the base lifecycle.** Repeatable child-to-parent reporting is compatible with this lifecycle, but quiet versus waking delivery, acknowledgement, durability, and retry behavior are independent product choices. The later report package remains optional and consumes an explicit child-setup seam, so continuable residency does not silently grant a return channel.
|
||||
|
||||
**Treat `SessionHeader.parentSession` as live ownership.** Durable lineage does not prove that the historical parent currently owns the child. Membership in the live parent's `ownedChildren` records the process-local relationship without changing durable provenance.
|
||||
|
||||
**Retain the exact parent Agent in a separate link.** The parent Activation already owns its `AgentHandle`, and `ownedChildren` prevents that Activation from disposing while the child remains live. Resolving the parent by Session id is therefore sufficient and avoids a redundant runtime reference.
|
||||
|
||||
**Maintain a separate queue for continuation messages.** A second FIFO creates ambiguous ordering against messages already accepted by the Agent. A single Agent inbox gives every accepted turn one observable order.
|
||||
|
||||
**Expose subagent steering now.** Parent steering needs current-turn controller state and a separate admission policy from follow-up delivery. Queueing every first-version continuation avoids that state and its admission race.
|
||||
|
||||
**Expose host-user follow-up without a host consumer.** A public authority-minting method and user branch would make cold resume possible without the historical parent, but no production host adapter calls that operation. The seam accepts only the exact live parent until a concrete authenticated host interaction can receive a private capability.
|
||||
|
||||
**Return a subagent-specific delivery route.** Labels such as `started`, `queued`, and `resumed` duplicate Activation and inbox state without giving the caller an independent result. Reusing `MessageId` and the existing inbox events keeps delivery correlation on the Agent contract that owns it.
|
||||
|
||||
**Use a child reference count.** A count cannot identify which child still owns teardown work and permits duplicate decrement errors. An identity set retains cancellation and disposal obligations explicitly.
|
||||
|
||||
## Consequences
|
||||
|
||||
The implementation pins these behaviors:
|
||||
|
||||
- A continuable child has at most one live Activation and one Agent inbox; the continuation manager has no Activation FIFO or queued Activation state.
|
||||
- `SubagentProvider.prepareContinuable?()` returns only a detached `ContinuableCreateSpec`; configured continuable mode requires that capability, while `backgroundMode` remains an independent policy choice.
|
||||
- The manager calls `ctx.agents.create()` through its private activation-owner scope, installs the returned `AgentHandle` and parent ownership, calls `Agent.followup(initialPrompt)`, and returns `{ childId, messageId }` when inbox acceptance yields the `MessageId`, without waiting for turn start or a Session-log write.
|
||||
- Every failure before initial-prompt inbox acceptance rejects without ids and rolls back any created handle, Activation, and parent `ownedChildren` membership through a closing transaction visible to concurrent delivery and drain; lifecycle publication failure emits no unmatched terminal edge.
|
||||
- Cold resume calls `ctx.agents.resume()` from the continuation manager and never dispatches through or requires the initial subagent provider; the persisted provider name remains lifecycle provenance after provider removal, while `SubagentProvider.resume?()` and `SubagentProviderResumeRequest` are absent.
|
||||
- A continuable Activation directly owns `AgentHandle` and never creates, wraps, or retains `SubagentRun`; `SubagentProvider.start()` and `SubagentRun` remain one-shot-only, without `SubagentRun.steer?()`.
|
||||
- `followup()` accepts only the exact live direct parent and rechecks that identity at the final no-await inbox-admission boundary after any materialization; durable message provenance cannot authorize delivery.
|
||||
- Continuation messages always use `Agent.followup()` and share its inbox FIFO, including when the child already has an open turn.
|
||||
- `ctx.subagents.followup()` and its `send_message` adapter return only the accepted `MessageId`; the continuation layer accepts no delivery target and defines no subagent-specific route result.
|
||||
- This version exposes no public subagent cancellation operation; caller signals stop start and follow-up only before inbox acceptance, while host-scoped and manager-global teardown retain child-first cleanup.
|
||||
- This version exposes no subagent steering operation or current-turn controller state.
|
||||
- An idle Agent with live owned children yields a `waiting` Activation whose `AgentHandle` remains retained.
|
||||
- A `next-turn` delivered to `waiting` wakes the same Activation; delivery after completed disposal cold-resumes a new Activation.
|
||||
- Every continuation-managed parent Activation disposes only after all directly owned child Activations complete `AgentHandle` disposal; top-level Agents do not join the waiting graph.
|
||||
- Final Activation settlement awaits `ctx.sessions.flush(child.session)` as a best-effort barrier, logs rejection without interpreting listener participation as durability proof, then disposes the child handle and releases parent ownership so a flush failure cannot leak a `waiting` Activation.
|
||||
- Manager teardown closes admission globally; a host owning selected top-level Agents instead closes admission only below their exact identities until those roots leave the registry. Both track admitted materializations by exact ancestry, install one memoized disposal cutoff per selected visible Activation, propagate cancellation top-down, release handles child-first, await every selected branch despite individual failures, and only then dispose the corresponding top-level Agents or manager scope.
|
||||
- The base lifecycle has no implicit report behavior; the optional report package contributes an explicit child-scoped tool through the setup seam.
|
||||
- Session logs reconstruct only messages that were actually written, with their admitted provenance; inbox-accepted but unlogged messages have no restart guarantee.
|
||||
- No continuable-subagent path creates or depends on a Task, `TaskId`, Task completion notice, Task cancellation, or intermediate result-bearing execution wrapper.
|
||||
- Unit coverage pins the `startContinuable()` inbox-acceptance return boundary, complete rollback for each pre-acceptance and lifecycle-publication failure, global and parent-scoped drain quiescence for materialization caught between Agent publication and Activation registration, sibling-forest isolation, exact ancestry after an intermediate Agent leaves the registry, provider-independent cold resume, final exact-parent reauthorization after cold-resume materialization, caller-signal and teardown ownership on both sides of acceptance, and the absence of automatic replay for accepted-but-unlogged messages.
|
||||
- Unit coverage pins the residency-only routing table, single-inbox ordering, `MessageId` correlation through inbox events, follow-up during an open turn, waiting wakeup, cold resume, ownership registration and release, child-first disposal, send-versus-dispose races, best-effort final flush with absent and failing listeners, and the absence of public subagent cancellation and steering.
|
||||
- Report-package unit coverage separately pins child-only visibility, setup revocation, authority, delivery modes, stable message identity, and lifecycle races.
|
||||
- A keyless assembled-app snapshot covers parent delegation and follow-up queueing, the absence of subagent steering and implicit report delivery, retained waiting `AgentHandle`, and child-first disposal. A separate report snapshot covers the optional explicit return channel.
|
||||
|
||||
### Accepted costs
|
||||
|
||||
Removing Tasks gives up generic background-work inspection, result collection, and exact Task cancellation. If those product features become requirements, they need a request ticket or inbox capability that does not reintroduce a second execution queue.
|
||||
|
||||
Retaining an Activation while descendants run consumes Agent resources proportional to the unfinished ownership graph. The existing delegation-depth policy still bounds nesting, but this version adds no live-Activation or total-descendant limit; settled historical Sessions retain no `AgentHandle`.
|
||||
|
||||
The process-local inbox and ownership graph do not coordinate two harness processes. Deployments allowing concurrent access to one persistence store still require a durable lease and mailbox protocol.
|
||||
|
||||
Without the optional report package, completing a child turn neither sends its content to nor wakes the historical parent. With the package, only an explicit `report` call sends selected content; quiet delivery does not wake the parent, while waking delivery enqueues one later turn. In every case the detailed child output remains in its durable Session.
|
||||
|
||||
Queueing every continuation message means a parent cannot correct an in-progress child turn immediately; the correction runs as the next turn. A later UI steering action may reduce that latency without changing follow-up ordering.
|
||||
|
||||
A failed best-effort final flush is logged while the runtime ownership graph continues draining; the persisted child state may be missing or stale. Retry and repair require a separate recovery design.
|
||||
@@ -0,0 +1,216 @@
|
||||
# Agent Note（agent 决策记录）：可继续的 subagent
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-28-continuable-subagent-conversations.md) | 中文
|
||||
|
||||
本记录取代[可继续的后台 subagent](../../implemented/feature/2026-07-21-continuable-background-subagents.md)中由 Task 支撑的继续执行管理器。它保留[将 subagent 控制合并到 subagent 服务](../../implemented/simplification/2026-07-26-merge-subagent-control-service.md)确立的单一 `ctx.subagents` 服务，以及[以意图命名的 subagent 继续执行操作](../../implemented/simplification/2026-07-27-intent-named-subagent-continuation-operations.md)确立的 `followup` 操作。
|
||||
|
||||
## 问题
|
||||
|
||||
以前的继续执行管理器让一个 Task、一次提供方执行和一个结果边界共享同一生命周期。Task 结算会 dispose（资源释放）child Agent，Task 完成会注入完成通知，后续输入则重建另一个 Agent。这曾使通用后台工作抽象与会话投递耦合，而可继续 subagent 已经具备会话和 Agent inbox。
|
||||
|
||||
如果继续执行管理器为继续执行请求排队，而 Agent 保留自己的 inbox，系统就会出现两个 FIFO，且没有唯一的顺序权威。而把所有消息都交给 Task，则重复了 agent loop（智能体循环）已有的准入、取消和完全停稳机制。`Agent.whenIdle()` 无法恢复单项请求的 Task 结果，因为一个运行区间可能清空多个排队轮次；宽泛的 `Agent.cancel()` 也不能精确移除一项排队请求。
|
||||
|
||||
运行时生命周期也比单个轮次更长。subagent 可能已经结束自身轮次，但它创建的 child 仍在运行。此时 dispose parent 运行时，会移除仍负责后代拆卸的 Agent。反之，如果让所有历史 subagent 始终驻留，内存使用就会失去上界。
|
||||
|
||||
parent Agent 还需要在不改变当前轮次的前提下，向同一个在线 child 发送后续工作。将每条继续执行消息作为 follow-up 排队，可以保留唯一的排序规则。
|
||||
|
||||
## 决策
|
||||
|
||||
一个可继续 subagent 拥有一个持久化会话，并且至多拥有一个进程内激活：
|
||||
|
||||
```text
|
||||
persisted Session
|
||||
-> optional live Activation
|
||||
-> one retained AgentHandle
|
||||
-> Agent inbox as the only turn FIFO
|
||||
-> zero or more owned child Activations
|
||||
```
|
||||
|
||||
激活是重建 child Agent 的一次驻留周期。它可以执行多个 FIFO 轮次，并在等待后代时保持驻留。它不是请求、结果、取消或 Task 边界。
|
||||
|
||||
继续执行管理器负责激活准入、权限检查、在线所有权图、冷恢复和 child-first dispose。Agent loop 负责全部轮次排序与执行。没有任何可继续 subagent 拥有 Task、激活 FIFO 或 queued 激活状态。
|
||||
|
||||
### 物化与公开操作
|
||||
|
||||
具名 subagent 提供方只参与准备初始创建规格，此时 `spawn` 与 `fork` 有所区别。其可选的 `prepareContinuable(request): Promise<ContinuableCreateSpec>` 方法就是可继续创建能力。返回的规格只包含与 Agent 实例分离且由提供方决定的创建输入，例如可选的 parent 历史种子；它不包含 Agent、`AgentHandle`、提示词投递、结果、dispose 或恢复操作。管理器会预留 child 身份，解析持久化描述符和通用 Agent 配置，通过私有 activation-owner 作用域调用 `ctx.agents.create()`，将返回的 `AgentHandle` 安装到激活中，建立适用的可继续 parent 所有权，然后调用 `Agent.followup(initialPrompt)`。inbox 接受消息后会产生一个 `MessageId`；`ctx.subagents.startContinuable()` 在此边界返回 `{ childId, messageId }`，不等待轮次开始，也不等待消息写入会话日志。
|
||||
|
||||
inbox 接受消息前发生任何失败，操作都会在不返回任何 id 的情况下被拒绝。Agent 创建流程负责 handle 移交前的回滚；移交后，管理器会保留一个对并发投递和 drain 可见的关闭事务，dispose 已创建的 handle、移除激活并回滚 parent `ownedChildren` 中的任何成员关系，再拒绝操作。在驻留 start 事件发布前失败不会发布终止事件，start 发布后失败则通过正常 dispose 闭合生命周期配对。
|
||||
|
||||
`backgroundMode: 'one-shot' | 'continuable'` 仍是部署策略。配置为 continuable 时要求存在 `prepareContinuable`；该方法是否存在会取代 `SubagentProvider.resume?()` 成为能力检查，而具备该能力的提供方仍可运行 one-shot 工作。
|
||||
|
||||
冷恢复不会通过 subagent 提供方分发。继续执行管理器会归并通用的进程内描述符，通过同一个 activation-owner 作用域调用 `ctx.agents.resume()`，安装返回的 `AgentHandle`，并提交等待中的 `next-turn`。`SubagentProvider.resume?()` 和 `SubagentProviderResumeRequest` 均不存在。初始提供方注销后，其名称仍作为生命周期来源信息保留；它不是恢复能力，也不是后续驻留的必要条件。远程提供方需要单独设计。
|
||||
|
||||
`SubagentProvider.start()` 和 `SubagentRun` 只保留在不变的 one-shot 路径上。可继续激活直接持有自身的 `AgentHandle`，绝不创建、包装或保留 `SubagentRun`；因此，`SubagentRun.steer?()` 不存在。
|
||||
|
||||
`ctx.subagents.followup(parent, childId, content, { source, signal })` 仍是唯一的从 parent 到 child 的继续执行消息操作。确切的在线 parent Agent 授权投递；冷恢复会在重建前检查该权限，每条路径还会在最终无 await 的 inbox 准入区间再次检查，因此在物化期间被注销或替换的 parent 无法授权投递。`source` 仍是持久化来源信息，不赋予任何权限。面向模型的 `send_message` 工具只保留稳定的 `subagent_id` 和 `message` 字段，并始终提交一个 follow-up 轮次。start 和 follow-up 都返回已接受的 `MessageId`，两者都不报告管理器如何物化激活。
|
||||
|
||||
对于 start 和 follow-up，调用方 signal 只在 inbox 接受消息前持有查找、物化和准入。操作返回 `MessageId` 后，管理器会独立持有该激活；调用方之后的取消不会取消已接受的轮次，也不会 dispose child。
|
||||
|
||||
### 持久化会话与在线激活
|
||||
|
||||
会话持有稳定的 child 身份、transcript（文本记录）、直接 parent 谱系、委派深度和带版本的继续执行描述符。`SessionHeader.parentSession` 是持久化来源信息和鉴权输入；它不是在线路由能力，也不表示历史 parent 仍然驻留。
|
||||
|
||||
空闲的历史会话没有 `AgentHandle`。第一条通过鉴权的 `next-turn` 投递会根据持久化会话恢复激活，并将消息提交到其 inbox。冷恢复使用经过身份认证的确切在线 parent Agent 执行鉴权；当该 parent 有激活时，还使用它建立所有权，但绝不使用 parent 执行重建。
|
||||
|
||||
激活作为消费方会直接持有已发布的 `AgentHandle` 直至结算，而管理器的私有 activation-owner 作用域则是其 Cordis 结构化所有者。可继续 subagent 路径不创建任何中间的带结果执行包装层，包括 `SubagentRun`；一次性委派保持不变，且不属于该生命周期。远程提供方不在此处的范围内，引入时需要单独的激活所有权契约。激活 dispose 后，历史会话不消耗运行时内存。
|
||||
|
||||
### 激活生命周期
|
||||
|
||||
内部驻留生命周期有三个条件，没有单独的 `queued` 状态：
|
||||
|
||||
```text
|
||||
running
|
||||
| Agent quiescent with live children
|
||||
v
|
||||
waiting
|
||||
| next-turn
|
||||
+--------------------------> running
|
||||
|
||||
running or waiting
|
||||
| Agent quiescent and no live children
|
||||
v
|
||||
settled
|
||||
| AgentHandle.dispose completes
|
||||
v
|
||||
no Activation
|
||||
```
|
||||
|
||||
`running` 表示 Agent 正在执行准入或轮次，或者 inbox 中存在会唤醒 Agent 的工作。`waiting` 表示 Agent 已经完全停稳，但激活仍持有至少一个尚未完成 dispose 的 child 激活。`settled` 表示 Agent 已经完全停稳且所有持有的 child 都已 dispose；随后管理器会 dispose `AgentHandle` 并移除激活。
|
||||
|
||||
管理器根据 Agent 是否完全停稳以及所持 child 集合派生这些状态，而不是维护第二套执行状态机。在 `running` 时投递的 `next-turn` 会进入 Agent inbox。在 `waiting` 时投递的 `next-turn` 会唤醒同一个 Agent，并使激活回到 `running`。在 dispose 完成后投递消息则会冷恢复新激活。
|
||||
|
||||
管理器会针对每个持久化 child，将投递、child 释放和 dispose 线性化。如果投递与最终 dispose 发生竞争，只有一方能越过准入截止点：投递要么进入仍在线的 Agent inbox，要么等待 dispose 完成后冷恢复新激活。任何调用方都不能向已经开始 dispose 事务的 handle 发送消息。
|
||||
|
||||
### 一个 inbox 与 follow-up 投递
|
||||
|
||||
Agent inbox 是唯一队列。每条继续执行消息都使用 `Agent.followup()`，并成为一个 FIFO 轮次；继续执行管理器和宿主都不维护另一条消息队列。每个已接受且会唤醒 Agent 的条目都会让当前激活保持在线，直至 `Agent.whenIdle()` 观察到完整的唤醒工作后缀已经结束。
|
||||
|
||||
路由只取决于激活的驻留状态：
|
||||
|
||||
| 激活状态 | `followup` |
|
||||
|---|---|
|
||||
| `running` | 在同一激活中排队 |
|
||||
| `waiting` | 唤醒同一激活 |
|
||||
| 无激活 | 冷恢复新激活 |
|
||||
|
||||
继续执行层不定义单独的投递路由结果。成功投递 `ctx.subagents.followup()` 或 `send_message` 时会返回已接受的 `MessageId`，投递失败则会抛出异常。现有的 `agent/inbox/enqueue`、`agent/inbox/dequeue` 和 `agent/inbox/discard` 事件仍用于观测消息生命周期；适配器可以呈现通用的接受确认，但不暴露 `started`、`queued`、`resumed` 或其他 subagent 专属路由词汇。
|
||||
|
||||
### child 所有权
|
||||
|
||||
每次激活都持有自身的 `AgentHandle` 和一个 `ownedChildren: Set<SessionId>`。由于一个会话至多有一次在线激活，child 会话 id 足以标识在线 child，无需另一个运行时 incarnation 引用。`SessionHeader.parentSession` 记录持久化的直接 parent 身份，`ownedChildren` 中的成员关系则记录进程内所有权关系。
|
||||
|
||||
当经过身份认证的 parent 自身是由继续执行管理器管理的激活时，启动 child 或提交由 parent 发起的工作，会在 child 可以运行或消息可以进入其 inbox 前，将 child 会话 id 加入该 parent 的 `ownedChildren`。该集合非空时，这个 parent 不能结算或 dispose。顶层 Agent 或其他非继续执行 Agent 没有激活，也不会加入该等待图。
|
||||
|
||||
只有在 child Agent 完全停稳、该 child 持有的每个 child 都已 dispose、best-effort 的最终会话 flush 结算且 child 的 `AgentHandle` 完成 dispose 后，系统才释放 child。管理器会等待 `ctx.sessions.flush(child.session)`，但不解释其参与布尔值：任意 listener 都无法证明所选持久化后端已存储该状态。rejection 会被记录，但不会阻止 handle dispose 或释放所有权，因为保留 child 会让其祖先永久固定在 `waiting`。如果 child 归 parent 所有，管理器随后会通过 `SessionHeader.parentSession` 解析在线 parent，并从其 `ownedChildren` 中移除 child 会话 id。管理器拆卸使用相同的 child-first 顺序。
|
||||
|
||||
系统会一直保留所有权，直至 child 激活完成 dispose。后续改进可以更早释放限定到请求的 lease，但这需要精确关联轮次完成，而本 Task-free 提案特意不增加该机制。
|
||||
|
||||
顶层拆卸由宿主负责，而不表示为另一次激活。管理器卸载会调用其内部的管理器全局 drain，同步关闭准入，等待每个已获准的物化过程完成发布或回滚，停止稳定的在线森林，并按 child-first 顺序释放。拥有选定顶层 Agent 的宿主使用 `drainContinuableDescendants(parents)`：确切的 Agent 身份只关闭这些根之下的准入，直到每个身份离开注册表，而无关森林和管理器全局准入保持在线；管理器会在第一次 await 之前停止其可见后代，只等待这些根之下已获准的物化过程，并且只释放选定分支。每个已物化的 start 和在线投递都会在与 inbox 提交相同的同步区间内重新检查调用方取消、适用的 draining 作用域、Activation dispose 和确切的 parent 权限，因此只要拆卸或 parent 替换先于接受发生，就会阻止向正在关闭的 handle 投递。只有适用的 drain 结算后，宿主才能 dispose 自己的顶层 Agent；只有管理器全局 drain 会先于管理器作用域 dispose。
|
||||
|
||||
activation-owner 作用域之所以存在，是因为普通 Cordis owner effect 按注册逆序撤销，无法表达动态 child 图。管理器初始化时先注册私有作用域的结构化 disposer，再注册自身的 drain disposer，使逆序撤销先执行 drain、再释放该作用域；如果只在与后续 Agent handle 相同的作用域上注册 cleanup effect，结构化 handle dispose 就可能绕过 child-first 顺序。每个物化过程都会在启动内部事务前注册其屏障参与项，并对其确切的在线祖先建立快照，然后保持跟踪，直到安装 Activation 或完全回滚。Activation 会以弱引用方式记录其属于这组祖先，因此中间 Agent 即使离开注册表，也不会让仍在线的后代脱离宿主根节点的可见范围。每个 Activation 都会在取消或递归回调前安装一个记忆化的 dispose promise，使限定作用域的宿主关闭、全局管理器卸载、child 释放和正常结算能够汇合，而不会重复释放。取消会在等待缓慢的后代清理之前自顶向下传播；handle 释放仍是 child-first。同级分支独立 drain；系统会记录单次 dispose 失败，但仍会尝试其余选中 handle，聚合 drain 则在所有选中分支结算后报告失败。这次进程内拆卸不会销毁持久化 child 会话。
|
||||
|
||||
### 报告投递扩展
|
||||
|
||||
可选的 child 作用域 `report(output)` 工具不会改变 Activation 驻留状态，也不会增加另一条队列。它每轮可调用零次或多次，不允许指定接收方，而是推导在线的直接 parent；投递采用静默注入还是唤醒 parent follow-up，由部署配置选择。[report 工具 Agent Note](2026-07-30-continuable-subagent-report-tool.md)规定其权限、确认、设置贡献和投递契约。
|
||||
|
||||
### 延后的 steering（中途引导）
|
||||
|
||||
本版本不暴露 subagent steering 操作。parent 的继续执行消息始终开启后续 FIFO 轮次，因此继续执行层不存储当前轮次控制方，也不新增能够感知控制方的 Agent 准入 seam。
|
||||
|
||||
后续宿主 UI 可以分别暴露 **Steer** 和 **Follow up** 操作。宿主 steering 必须严格且仅限在线使用：只有当激活接受下一步骤时，它才能调用现有的 Agent steering 路径；其他情况必须拒绝，而且绝不能转为排队或冷恢复。是否通过面向模型的工具暴露 parent steering 仍需单独设计。
|
||||
|
||||
### 权限与来源
|
||||
|
||||
权限来自确切的在线 Agent 工具上下文。`MessageSource` 和 `senderSessionId` 是准入后的持久化来源信息，不是由调用方控制的权限。
|
||||
|
||||
本版本只授权持久化 child 的直接 parent。管理器会在将 child 注册到该 parent 的 `ownedChildren` 之前，于最终无 await 的 inbox 准入边界根据确切的在线 parent Agent 检查 `SessionHeader.parentSession`；冷恢复还会在重建前执行一次更早的检查，以便快速失败。其他 Agent、祖先、宿主、团队和工作流仍被拒绝，直至有具体消费方证明另一种权限协议合理。
|
||||
|
||||
由 parent 发起的投递要求 parent 在准入时在线，并通过所有权关系使其继续在线。
|
||||
|
||||
### 持久性、dispose 与恢复
|
||||
|
||||
没有 Task 后，系统不再提供 `task_output`、`task_kill`、Task 状态、逐消息结果 promise 或公开 subagent 取消操作。调用方 signal 只能在 inbox 接受消息前中止 start 或 follow-up。消息被接受后，parent 不能通过 `ctx.subagents` 取消该消息、轮次或激活；`Agent.cancel()` 仍是底层 Agent 能力，但本版本不通过 subagent 服务暴露它。
|
||||
|
||||
宿主和管理器拆卸仍是生命周期停止路径。管理器卸载会全局应用它；宿主只会在自己确切拥有的顶层 Agent 之下应用它。两种形式都会关闭适用的准入作用域，停止选中的可见 Activation，等待该作用域中已获准的物化过程，按 child-first 顺序释放，并保留持久化 Session。
|
||||
|
||||
每个轮次都会请求执行会话持久性检查点，而 Activation 最终结算还会等待 `ctx.sessions.flush()`，将其作为 best-effort 屏障。管理器特意忽略布尔结果，因为 listener 是否参与无法标识持久化后端。rejection 会被记录，但不会改变生命周期结果或宿主 drain 的结果；管理器仍会 dispose handle 并释放所有权，后续恢复时持久化 child 状态可能缺失或陈旧。
|
||||
|
||||
只有实际写入 child 会话日志的消息，才能根据其准入来源重建；仅被 inbox 接受并不提供重启保证。
|
||||
|
||||
会话和描述符的持久化状态可在重启后保留。激活状态、Agent inbox 内容和所有权图都是进程内状态。进程崩溃可能丢失已被接受但仍留在 inbox、尚未写入会话日志的初始提示词或 follow-up。会话和描述符可能保留，因此后续获得授权的消息仍可冷恢复 child，但丢失的消息不会自动回放。恢复已接受但未完成或未写入日志的消息需要持久化 inbox 协议，本提案不隐含该能力。
|
||||
|
||||
### 范围
|
||||
|
||||
本版本覆盖可继续的进程内 child，一次性委派保持不变。远程提供方必须具备单独的激活 handle，以及等价的认证控制与 child-first 完全停稳契约，才能支持同样的行为。
|
||||
|
||||
它不新增 host-user 继续执行、subagent steering 操作、持久化邮箱、跨进程 lease、中断 inbox 工作的自动回放、团队权限、工作流权限、公开 subagent 取消操作、公开驻留查询、新的在线激活数量或后代总数限制，以及运行时缓存。现有委派深度策略保持不变。可选的 child 到 parent 报告是后续消费该生命周期的功能，不属于基础可继续能力。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
**保留由 Task 支撑的激活。** Task 可以提供通用状态、结果收集和取消，但使用 Task 投递会话会产生第二条队列，并重复轮次所有权。本提案放弃这些通用 Task 控制，让 Agent inbox 成为唯一执行顺序。
|
||||
|
||||
**每个 `next-turn` 创建一次激活。** 这会恢复独立的结果与取消边界，但需要在 Agent inbox 旁维护管理器 FIFO，还会使所保留的 Agent 跨越人为划分的激活边界。每个驻留周期对应一次激活更小，也直接跟随 `AgentHandle` 生命周期。
|
||||
|
||||
**等待期间 dispose Agent。** child 仍属于上一个进程内所有权图时重建 parent，需要持久化所有权与拆卸协议。只为尚未完成的所有权图保留 `AgentHandle`，可以在不让已结算历史驻留的前提下，保留 child-first 拆卸。
|
||||
|
||||
**让提供方通过 Agent handle 创建、恢复 child 或投递消息。** 初始提供方只持有 `prepareContinuable()` 及其分离式创建规格这一项差异：child 是全新启动，还是带有 parent 前缀。管理器必须通过私有 activation-owner 作用域自行调用 `ctx.agents.create()`，使该作用域成为每个 handle 的结构化所有者。持久化的进程内会话已经包含初始前缀及通用重建描述符，消息投递则属于 Agent inbox。让提供方持有任何后续 handle、`SubagentRun` 或消息所有权，会保留一条没有已发布行为可承载的 seam。
|
||||
|
||||
**将报告投递纳入基础生命周期。** 可重复的 child 到 parent 报告与该生命周期兼容，但静默投递还是唤醒投递、确认、持久性和重试行为都是独立的产品决策。后续的 report 包保持可选，并消费一条显式 child 设置 seam，因此可继续驻留不会默认授予返回通道。
|
||||
|
||||
**将 `SessionHeader.parentSession` 视为在线所有权。** 持久化谱系不能证明历史 parent 当前持有 child。在线 parent 的 `ownedChildren` 成员关系会记录进程内关系，而不改变持久化来源。
|
||||
|
||||
**在单独的 link 中保留确切的 parent Agent。** parent 激活已经持有自身 `AgentHandle`，而且 `ownedChildren` 会在 child 仍然在线时阻止该激活 dispose。因此，通过会话 id 解析 parent 已经足够，也可以避免冗余的运行时引用。
|
||||
|
||||
**为继续执行消息维护单独队列。** 第二个 FIFO 会让它和 Agent 已接受消息之间顺序不明确。单个 Agent inbox 为每个已接受轮次提供唯一且可观察的顺序。
|
||||
|
||||
**现在就暴露 subagent steering。** parent steering 需要当前轮次控制方状态，以及不同于 follow-up 投递的单独准入策略。首个版本将每条继续执行消息都排队，可以避免引入该状态及其准入竞争。
|
||||
|
||||
**在没有 host 消费方的情况下暴露 host-user follow-up。** 公开的权限铸造方法和用户分支可以在没有历史 parent 的情况下实现冷恢复，但没有生产 host 适配器调用该操作。在具体的经认证宿主交互能够收到私有能力之前，该 seam 只接受确切的在线 parent。
|
||||
|
||||
**返回 subagent 专属的投递路由。** `started`、`queued` 和 `resumed` 等标签重复了激活与 inbox 状态，却没有给调用方提供独立结果。复用 `MessageId` 和现有 inbox 事件，可以让投递关联继续由其所属的 Agent 契约承载。
|
||||
|
||||
**使用 child 引用计数。** 计数无法识别哪个 child 仍持有拆卸工作，也允许重复递减错误。身份集合会显式保留取消和 dispose 义务。
|
||||
|
||||
## 影响
|
||||
|
||||
本实现固定了以下行为：
|
||||
|
||||
- 可继续 child 至多拥有一个在线激活和一个 Agent inbox；继续执行管理器没有激活 FIFO 或 queued 激活状态。
|
||||
- `SubagentProvider.prepareContinuable?()` 只返回分离式 `ContinuableCreateSpec`；配置为 continuable 时要求具备该能力，而 `backgroundMode` 仍是独立的策略选择。
|
||||
- 管理器通过私有 activation-owner 作用域调用 `ctx.agents.create()`，安装返回的 `AgentHandle` 并建立 parent 所有权，调用 `Agent.followup(initialPrompt)`，然后在 inbox 接受消息并产生 `MessageId` 时返回 `{ childId, messageId }`，而不等待轮次开始或消息写入会话日志。
|
||||
- 初始提示词被 inbox 接受前的每条失败路径都会导致操作被拒绝且不返回 id，并通过一个对并发投递和 drain 可见的关闭事务回滚已创建的任何 handle、激活和 parent `ownedChildren` 成员关系；生命周期发布失败不会产生无配对的终止事件。
|
||||
- 冷恢复由继续执行管理器调用 `ctx.agents.resume()`，绝不通过或依赖初始 subagent 提供方；提供方移除后，持久化的提供方名称仍作为生命周期来源信息保留，且 `SubagentProvider.resume?()` 和 `SubagentProviderResumeRequest` 均不存在。
|
||||
- 可继续激活直接持有 `AgentHandle`，绝不创建、包装或保留 `SubagentRun`；`SubagentProvider.start()` 和 `SubagentRun` 只用于 one-shot，且没有 `SubagentRun.steer?()`。
|
||||
- `followup()` 只接受确切的在线直接 parent，并在任何物化之后的最终无 await 的 inbox 准入边界再次检查该身份；持久化消息来源信息不能授权投递。
|
||||
- 继续执行消息始终使用 `Agent.followup()` 并共享其 inbox FIFO，包括 child 已有开放轮次的情况。
|
||||
- `ctx.subagents.followup()` 及其 `send_message` 适配器只返回已接受的 `MessageId`；继续执行层不接受投递 target，也不定义 subagent 专属路由结果。
|
||||
- 本版本不暴露公开 subagent 取消操作；调用方 signal 只能在 inbox 接受消息前停止 start 和 follow-up，限定到宿主的拆卸与管理器全局拆卸则保留 child-first 清理。
|
||||
- 本版本不暴露 subagent steering 操作或当前轮次控制方状态。
|
||||
- 带有在线所持 child 的空闲 Agent 会产生 `waiting` 激活，其 `AgentHandle` 继续保留。
|
||||
- 向 `waiting` 投递 `next-turn` 会唤醒同一个激活；完成 dispose 后投递消息会冷恢复新激活。
|
||||
- 每个由继续执行管理器管理的 parent 激活只会在直接持有的所有 child 激活完成 `AgentHandle` dispose 后进行 dispose；顶层 Agent 不加入等待图。
|
||||
- Activation 最终结算会等待 `ctx.sessions.flush(child.session)`，将其作为 best-effort 屏障；它会记录 rejection，但不会把 listener 参与解释为持久性证明，然后 dispose child handle 并释放 parent 所有权，使 flush 失败不会泄漏 `waiting` Activation。
|
||||
- 管理器拆卸会全局关闭准入；拥有选定顶层 Agent 的宿主则只关闭这些确切身份之下的准入，直到这些根离开注册表。两者都会按确切祖先关系跟踪已获准的物化过程，为每个选中的可见 Activation 安装一个记忆化 dispose 截止点，自顶向下传播取消，按 child-first 顺序释放 handle，即使个别分支失败也会等待所有选中分支，之后才 dispose 对应的顶层 Agent 或管理器作用域。
|
||||
- 基础生命周期不暴露隐式报告行为；可选的 report 包通过 setup seam 贡献一个显式的 child 作用域工具。
|
||||
- 会话日志只能根据准入来源重建实际写入的消息；已被 inbox 接受但未写入日志的消息没有重启保证。
|
||||
- 可继续 subagent 路径不创建或依赖 Task、`TaskId`、Task 完成通知、Task 取消或中间的带结果执行包装层。
|
||||
- 单元覆盖固定 `startContinuable()` 在 inbox 接受消息时的返回边界、每条接受前和生命周期发布失败路径的完整回滚、全局和限定到 parent 作用域的 drain 都会等待夹在 Agent 发布与 Activation 注册之间的物化过程完全停稳、同级森林隔离、中间 Agent 离开注册表后的确切祖先关系、不依赖提供方的冷恢复、冷恢复物化后的最终确切 parent 再授权、接受前后两个阶段的调用方 signal 与拆卸所有权，以及已接受但未写入日志的消息不会自动回放。
|
||||
- 单元覆盖固定仅由驻留状态决定的路由表、单 inbox 顺序、通过 inbox 事件关联 `MessageId`、在开放轮次期间 follow-up、等待唤醒、冷恢复、所有权注册与释放、child-first dispose、发送与 dispose 的竞争、没有 listener 和 listener 失败时的 best-effort 最终 flush，以及不存在公开 subagent 取消和 steering。
|
||||
- report 包的单元覆盖会分别固定仅 child 可见性、setup 撤销、权限、投递模式、稳定消息身份和生命周期竞争。
|
||||
- 一项无密钥整套应用快照覆盖 parent 委派和 follow-up 排队、不存在 subagent steering 和隐式 report 投递、保留 waiting 中的 `AgentHandle` 以及 child-first dispose。另一项 report 快照覆盖可选的显式返回通道。
|
||||
|
||||
### 已接受的代价
|
||||
|
||||
移除 Task 会放弃通用后台工作检查、结果收集和精确 Task 取消。如果这些产品功能成为需求，就需要不会重新引入第二条执行队列的请求 ticket 或 inbox 能力。
|
||||
|
||||
在后代运行期间保留激活，会按尚未完成所有权图的规模消耗 Agent 资源。现有委派深度策略仍会限制嵌套层级，但本版本不新增在线激活数量或后代总数限制；已结算的历史会话不保留 `AgentHandle`。
|
||||
|
||||
进程内 inbox 和所有权图无法协调两个 harness 进程。允许多个进程并发访问同一持久化存储的部署，仍需要持久化 lease 和邮箱协议。
|
||||
|
||||
未安装可选 report 包时，完成 child 轮次既不会把内容发送给历史 parent，也不会唤醒它。安装后，只有显式调用 `report` 才会发送选中内容；静默投递不唤醒 parent，唤醒投递则会排入一个后续轮次。无论如何，child 的详细输出都会保留在其持久化会话中。
|
||||
|
||||
将每条继续执行消息排队，意味着 parent 无法立即纠正正在进行的 child 轮次；纠正操作会在下一个轮次执行。后续 UI steering 操作可以缩短该延迟，而不改变 follow-up 排序。
|
||||
|
||||
best-effort 最终 flush 失败时会记录日志，同时运行时所有权图继续 drain；持久化 child 状态可能缺失或陈旧。重试与修复需要单独的恢复设计。
|
||||
@@ -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-cross-workspace-resume.md
|
||||
2026-07-28-cross-workspace-resume.md: 1ef6195b6f269a6dc8cf869902b7772ad48f00c2
|
||||
2026-07-28-cross-workspace-resume.zh.md: d31dc5f0470e20f86062edb4ad75c37a6160fe23
|
||||
2026-07-28-cross-workspace-resume.md: e8a8636911015a5b300b45a30e268ee1be5d47d1
|
||||
2026-07-28-cross-workspace-resume.zh.md: 9e5e126f4b204927d7fb134a196dd0d0a98468d4
|
||||
|
||||
@@ -18,7 +18,7 @@ Finally, resume never changed directory. The host re-execs `dsh --resume=<id>` t
|
||||
|
||||
The shared CLI configuration supplies one session root under the Harness home, the picker gains a workspace scope, and the handoff carries the target directory.
|
||||
|
||||
**Storage.** The shared base owns the default in `apps/cli/config/base.cordis.yml`: its `session-persistence-jsonl` row resolves `sessions` beneath `DSH_HOME`, with the standard `~/.dsh` fallback when the environment has not been initialized. TUI, Web, and headless therefore consume one default without launcher patches or a boot slot. An overlay or personal patch that states an explicit root replaces that row's whole `config` and remains the deployment's authoritative choice.
|
||||
**Storage.** The shared base owns the default in `apps/cli/config/base.cordis.yml`: its `session-persistence-jsonl` row calls the app-boot-provided `dshHomePath('sessions')`, which uses the canonical `DSH_HOME` resolver and its standard `~/.dsh` fallback. TUI, Web, and headless therefore consume one default without a session-specific launcher patch or slot. An overlay or personal patch that states an explicit root replaces that row's whole `config` and remains the deployment's authoritative choice.
|
||||
|
||||
**Scope, not exclusion.** A workspace other than the current one is a display scope rather than a disabled reason. `showResume()` summarizes every record and the `ResumePicker` owns a `scope` of `'workspace' | 'all'`, defaulting to the current workspace so the common case is unchanged. Tab toggles; the scope line names the active scope and the count the other holds; each row in the all-workspaces scope reports its own workspace, and that label joins the searchable text only in the scope that shows it. A toggle clears the query and selection so the highlighted row always belongs to the visible list, and the per-row workspace line makes a row one terminal row taller in that scope, which the visible-count budget accounts for.
|
||||
|
||||
|
||||
@@ -18,7 +18,7 @@ Status: implemented
|
||||
|
||||
共享 CLI 配置提供 Harness home 下的同一个会话根目录，选择器获得 workspace 范围，交接过程携带目标目录。
|
||||
|
||||
**存储。** 共享 base 在 `apps/cli/config/base.cordis.yml` 中拥有默认值：其 `session-persistence-jsonl` 配置项把 `sessions` 解析到 `DSH_HOME` 下；环境尚未初始化时则使用标准的 `~/.dsh` 回退值。因此 TUI、Web 与 headless 使用同一个默认值，无需启动器补丁或启动槽位。若 overlay 或个人 patch 显式声明根目录，它会整体替换该配置项的 `config`，并继续作为部署的权威选择。
|
||||
**存储。** 共享 base 在 `apps/cli/config/base.cordis.yml` 中拥有默认值：其 `session-persistence-jsonl` 配置项调用由 app-boot 提供的 `dshHomePath('sessions')`，该函数使用规范的 `DSH_HOME` 解析器及其标准的 `~/.dsh` 回退值。因此 TUI、Web 与 headless 使用同一个默认值，无需针对会话的启动器补丁或槽位。若 overlay 或个人 patch 显式声明根目录，它会整体替换该配置项的 `config`，并继续作为部署的权威选择。
|
||||
|
||||
**是范围，不是排除。** 当前 workspace 之外的 workspace 是一种展示范围，而不是禁用理由。`showResume()` 汇总每一条记录，`ResumePicker` 持有一个 `'workspace' | 'all'` 的 `scope`，默认为当前 workspace，因此常见场景毫无变化。Tab 切换范围；范围行会说明当前生效的范围，以及另一个范围下的数量；在全 workspace 范围中每一行都报告自己的 workspace，而该标签只在展示它的范围里才加入可搜索文本。切换范围会清空查询和选中项，使高亮行始终属于可见列表；而逐行的 workspace 行会让该范围下的每一行在终端里多占一行，可见条数预算已经把这一点计入。
|
||||
|
||||
|
||||
@@ -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-dsh-guided-skill-session-commands.md
|
||||
2026-07-28-dsh-guided-skill-session-commands.md: a11807dca9ad1640857cd95a8b528df691b8a27e
|
||||
2026-07-28-dsh-guided-skill-session-commands.zh.md: e48420ed77496d8c336031473364f9008fccced7
|
||||
2026-07-28-dsh-guided-skill-session-commands.md: 8a091f7a03c85b0723d96b4fc546875a4e6c0f95
|
||||
2026-07-28-dsh-guided-skill-session-commands.zh.md: 861e6cf6cf07c41fde4f78b0833e3f8eb9508767
|
||||
|
||||
@@ -16,7 +16,7 @@ The seed reuses the existing TUI skill path, not a new one. `createTuiChat` alre
|
||||
|
||||
**Freshness is gated in the launcher, not the TUI.** `runSkillSession` always mints a fresh session and provides the slot only when `resumeSessionId === undefined`, so a later `dsh --resume <id>` of that session is an ordinary TUI session with no re-injection. The TUI stays generic: it invokes whatever skill it is handed, once, at startup.
|
||||
|
||||
**`migrate`/`upgrade` take no options.** Unlike `meta`, they carry no `--resume`, `--config`, or `-p`; a guided fresh-session entry has nothing to resume or reconfigure. Any leaked default-surface option fails loud, matching the `web`/`meta` rejection pattern in the Commander adapter. The two modes share one `SkillSessionInvocation` discriminant (`mode: 'migrate' | 'upgrade'`); `bin.ts` maps the mode to `dsh-${mode}`.
|
||||
**`migrate`/`upgrade` take no default-surface options** (`upgrade` additionally carries the [experimental gate](2026-07-31-experimental-subcommand-gate.md)'s `--experimental`). They carry no `--resume`, `--config`, or `-p`; a guided fresh-session entry has nothing to resume or reconfigure. Any leaked default-surface option fails loud, matching the `web`/`meta` rejection pattern in the Commander adapter. The two modes share one `SkillSessionInvocation` discriminant (`mode: 'migrate' | 'upgrade'`); `bin.ts` maps the mode to `dsh-${mode}`.
|
||||
|
||||
The `dsh-migrate` skill is bundled under `skills/` (shipped through `DSH_BUNDLED_SKILL_DIR`, like `dsh-upgrade`). It asks which source agent (opencode/pi/Claude Code/Codex) if unstated, then maps each capability — workspace instructions, personal overlay, skills, hooks, MCP, API/env — to its DSH equivalent, grounded in the actual repo surfaces (the `hooks-claude`/`hooks-codex` bridges, `~/.dsh/{config.yaml,.env,AGENTS.md,skills/}`, `AGENTS.md`/`CLAUDE.md`, `mcporter`), and states plainly when a capability has no equivalent.
|
||||
|
||||
|
||||
@@ -16,7 +16,7 @@ Status: implemented
|
||||
|
||||
**新鲜性在启动器而非 TUI 中把关。** `runSkillSession` 总是创建全新会话，且仅在 `resumeSessionId === undefined` 时提供该槽，因此之后 `dsh --resume <id>` 恢复该会话时是普通 TUI 会话，不会重复注入。TUI 保持通用：它只是把接到的 skill 在启动时调用一次。
|
||||
|
||||
**`migrate`/`upgrade` 不接受任何选项。** 与 `meta` 不同，它们不带 `--resume`、`--config` 或 `-p`；引导式全新会话入口没有可恢复或可重配置的内容。任何泄漏的默认界面选项都会明确报错，与 Commander 适配器中 `web`/`meta` 的拒绝模式一致。两个 mode 共用一个 `SkillSessionInvocation` 判别式（`mode: 'migrate' | 'upgrade'`）；`bin.ts` 将 mode 映射为 `dsh-${mode}`。
|
||||
**`migrate`/`upgrade` 不接受任何默认界面选项**（`upgrade` 另带[实验性门槛](2026-07-31-experimental-subcommand-gate.md)的 `--experimental`）。它们不带 `--resume`、`--config` 或 `-p`；引导式全新会话入口没有可恢复或可重配置的内容。任何泄漏的默认界面选项都会明确报错，与 Commander 适配器中 `web`/`meta` 的拒绝模式一致。两个 mode 共用一个 `SkillSessionInvocation` 判别式（`mode: 'migrate' | 'upgrade'`）；`bin.ts` 将 mode 映射为 `dsh-${mode}`。
|
||||
|
||||
`dsh-migrate` skill 内置于 `skills/`（经 `DSH_BUNDLED_SKILL_DIR` 交付，与 `dsh-upgrade` 相同）。若未说明源 agent，它会先询问是哪个（opencode/pi/Claude Code/Codex），再把每项能力——workspace 指令、个人覆盖、skills、hooks、MCP、API/env——映射到对应的 DSH 等价物，并基于仓库实际的表面（`hooks-claude`/`hooks-codex` 桥、`~/.dsh/{config.yaml,.env,AGENTS.md,skills/}`、`AGENTS.md`/`CLAUDE.md`、`mcporter`）落地；当某能力无等价物时明确说明。
|
||||
|
||||
|
||||
@@ -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-dsh-meta-source-workspace.md
|
||||
2026-07-28-dsh-meta-source-workspace.md: d65e0e6ff092b63931dd58c52fa76fb76a071dff
|
||||
2026-07-28-dsh-meta-source-workspace.zh.md: 72a0c65e6eeda7d63dccc2306a3d7625cdb54362
|
||||
2026-07-28-dsh-meta-source-workspace.md: 95270a276cd5df03ffd2dfb419a33289d7b5b901
|
||||
2026-07-28-dsh-meta-source-workspace.zh.md: 645b20705386a3501d026fb58ca224c49cc69a17
|
||||
|
||||
@@ -14,36 +14,28 @@ English | [中文](2026-07-28-dsh-meta-source-workspace.zh.md)
|
||||
|
||||
The target is `SOURCE_ROOT` in `apps/cli/src/tui.ts` — `fileURLToPath(new URL('../../..', import.meta.url))`, three hops up from `apps/cli/{src,lib}` — the same constant the `harness:source` prompt section already names, so the workspace and the path advertised to the model cannot drift. It follows the launcher's real path, so a PATH symlink through `current` resolves to whichever staging worktree is active.
|
||||
|
||||
The mechanism is one `process.chdir(workspace)` inside `runTui`, guarded by a new optional third parameter that only `runMeta` passes. The cwd *is* the workspace seam in the shipped tree: `examples/tui-agent/cordis.yml` derives the session cwd (`!!js process.cwd()`), the `./.sessions` persistence root, and the HMR watch root (`root: ['.']`) from it, so one chdir moves all three together and meta sessions land in the checkout's gitignored `.sessions/`. It runs after both `.env` layers are loaded — the bin's invoking-directory load and the personal one — so the ambient > project > personal precedence is untouched. `DEFAULT_CONFIG` and `SOURCE_ROOT` are absolute and TUI mode passes no snapshot mode, so config resolution is chdir-independent.
|
||||
The mechanism is one `process.chdir(workspace)` inside `runTui`, guarded by an optional third parameter that only the `meta` dispatch passes. The cwd *is* the workspace seam in the shipped tree: `examples/tui-agent/cordis.yml` derives the session cwd (`!!js process.cwd()`), the `./.sessions` persistence root, and the HMR watch root (`root: ['.']`) from it, so one chdir moves all three together and meta sessions land in the checkout's gitignored `.sessions/`. It runs after both `.env` layers are loaded — the bin's invoking-directory load and the personal one — so the ambient > project > personal precedence is untouched. `DEFAULT_CONFIG` and `SOURCE_ROOT` are absolute and TUI mode passes no snapshot mode, so config resolution is chdir-independent.
|
||||
|
||||
`meta` accepts only `--resume <id>`. `--config` would boot a foreign tree against the harness workspace, which is the `--config` case rather than this one; `-p` is not interactive. Both fail loud, as does an empty `--resume=` — matching the default surface, where a swallowed empty id would silently start a fresh session.
|
||||
|
||||
**`meta` does not redeclare `--resume`.** Commander parses an option a subcommand shares with its parent into `program.opts()` and leaves the subcommand's own options object empty, so redeclaring it silently dropped the id (found by probing the adapter, not by review). The action reads `program.opts()`, which also accepts the flag on either side of the subcommand; `--help` still lists it among the parent's options.
|
||||
`meta` always starts a fresh session and accepts no default-surface options; its only option is the [experimental gate](2026-07-31-experimental-subcommand-gate.md)'s `--experimental`. `--config` would boot a foreign tree against the harness workspace, which is the default surface's `--config` case rather than this command; `-p` is not interactive, and resume re-enters the persisted session's own workspace through `dsh --resume <id>`. Any leaked default-surface option fails loud.
|
||||
|
||||
## Testing
|
||||
|
||||
`apps/cli/tests/args.spec.ts` extends its two existing cases rather than adding a file: routing for `meta`, `meta --resume <id>`, and `--resume <id> meta` (pinning the shared-option behavior above), and exit-1 for `meta --resume=`, `meta --config`, and `meta -p`. `runMeta` itself is composition inside the module's existing `v8 ignore` block, like `runTui`.
|
||||
`apps/cli/tests/args.spec.ts` pins routing for `meta`, rejection of every leaked default-surface option, and rejection of the former `experimental-meta` name. The dispatch itself is composition inside `bin.ts`'s existing `v8 ignore` block.
|
||||
|
||||
There is no keyless PTY smoke for this mode. The smoke harness gives each run a temp cwd, but `dsh meta` deliberately chdirs to the real checkout, so a smoke would write `.sessions/` into the live tree mid-test. Covering it properly needs an injectable target directory — a test-only seam this note declines to add for a one-line chdir.
|
||||
|
||||
The mode was verified interactively instead. Launched from `$HOME`, a `pwd` tool call reports the checkout, git resolves to its branch, the session log lands under the checkout's `.sessions/` (leaving `~/.sessions` untouched and the tree free of unignored residue), and plain `dsh` from another directory still uses the invoking one.
|
||||
|
||||
`dsh meta --resume <valid-id>` once started a *fresh* session instead of resuming — a pre-existing defect on the default surface, not one this mode introduced. [Launcher-owned resume identity](../architecture/2026-07-28-launcher-owned-resume-identity.md) found the cause and fixed it: a personal overlay had replaced the whole `tui-agent` config block, overwriting the shipped `resumeSessionId` intake with a read of an unset environment variable, so a valid id was silently ignored. Session identity is now a launcher-owned context slot that no config key can displace, and `meta` routes through it.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Thread an explicit workspace through `boot` and the config tree.** Avoids mutating process-wide state, but the shipped config reads the cwd in three places (`!!js process.cwd()`, `persistenceRoot`, HMR `root`), so each would need its own new plumbing and config key to stay consistent. `chdir` before boot expresses "this is the workspace" once, at the seam that already means it.
|
||||
|
||||
**A `--meta` flag on the default surface.** Rejected: the default surface is option-only so that subcommands do not collide with a positional, and a flag that silently relocates the workspace reads as a modifier of the current directory rather than a different target. `meta` alongside `web` matches the existing shape.
|
||||
**An `--experimental-meta` flag on the default surface.** Rejected: the default surface is option-only so that subcommands do not collide with a positional, and a flag that silently relocates the workspace reads as a modifier of the current directory rather than a different target. `meta` alongside `web` matches the existing shape.
|
||||
|
||||
**Resolve `~/.dsh/source/current` instead of the launcher's own path.** Rejected: it would diverge from the `harness:source` prompt path whenever a non-installed checkout's `bin/dsh` is invoked directly, telling the model one source root while working in another.
|
||||
|
||||
**Make the printed resume hint mode-aware.** Deferred here as a known cost, then delivered by [launcher-owned resume identity](../architecture/2026-07-28-launcher-owned-resume-identity.md): the exit line became a launcher-provided context slot, so meta mode prints `dsh meta --resume <id>` and a copied hint works from any directory. It previously came from static config as `dsh --resume {session}` and only worked when re-run from the checkout.
|
||||
|
||||
## Consequences
|
||||
|
||||
Starting a session on dsh's own source is `dsh meta` from anywhere, and the workspace is guaranteed to be the same checkout the model is told about. Meta sessions are isolated in the checkout's `.sessions/`, so `dsh meta --resume` sees only other meta sessions — intended, since a session's logged cwd belongs to its workspace.
|
||||
|
||||
The resume hint was this mode's original cost and is now resolved. [Launcher-owned resume identity](../architecture/2026-07-28-launcher-owned-resume-identity.md) made both the printed line and the in-place `/resume` handoff reproduce the mode as `dsh meta --resume <id>` from one shared argv helper, so a copied hint works from any directory and the handoff no longer depends implicitly on `execve` preserving the process cwd.
|
||||
Starting a session on dsh's own source is `dsh meta --experimental` from anywhere (or bare `dsh meta` under `DSH_EXPERIMENTAL=1`), and the workspace is guaranteed to be the same checkout the model is told about. The command always starts fresh; an ordinary `dsh --resume <id>` later restores the session and enters its persisted workspace.
|
||||
|
||||
`runTui` gains an optional third parameter, so the workspace override is visible at the one function that owns TUI composition rather than hidden in a second copy of it.
|
||||
|
||||
@@ -14,36 +14,28 @@ Status: implemented
|
||||
|
||||
目标是 `apps/cli/src/tui.ts` 中的 `SOURCE_ROOT`——`fileURLToPath(new URL('../../..', import.meta.url))`，从 `apps/cli/{src,lib}` 向上三级——与 `harness:source` 提示词段所用的常量完全相同，因此 workspace 与告知模型的路径不可能发生偏离。它跟随启动器的真实路径，所以经由 `current` 的 PATH 符号链接会解析到当前生效的那个 staging 工作树。
|
||||
|
||||
机制是 `runTui` 内的一次 `process.chdir(workspace)`，由一个新的可选第三参数把守，只有 `runMeta` 会传入。在已交付的配置树中，cwd *就是* workspace 的接缝：`examples/tui-agent/cordis.yml` 由它派生出会话 cwd（`!!js process.cwd()`）、`./.sessions` 持久化根目录以及 HMR 监视根目录（`root: ['.']`），因此一次 chdir 会让三者一并移动，meta 会话则落在检出目录中被 gitignore 的 `.sessions/` 内。它在两层 `.env` 都加载之后执行——bin 对调用目录的加载与个人层加载——因此“环境中已有的值 > 项目 > 个人”的优先级不受影响。`DEFAULT_CONFIG` 与 `SOURCE_ROOT` 都是绝对路径，且 TUI 模式不传 snapshot mode，所以配置解析与 chdir 无关。
|
||||
机制是 `runTui` 内的一次 `process.chdir(workspace)`，由一个可选第三参数把守，只有 `meta` 分派会传入。在已交付的配置树中，cwd *就是* workspace 的接缝：`examples/tui-agent/cordis.yml` 由它派生出会话 cwd（`!!js process.cwd()`）、`./.sessions` 持久化根目录以及 HMR 监视根目录（`root: ['.']`），因此一次 chdir 会让三者一并移动，meta 会话则落在检出目录中被 gitignore 的 `.sessions/` 内。它在两层 `.env` 都加载之后执行——bin 对调用目录的加载与个人层加载——因此“环境中已有的值 > 项目 > 个人”的优先级不受影响。`DEFAULT_CONFIG` 与 `SOURCE_ROOT` 都是绝对路径，且 TUI 模式不传 snapshot mode，所以配置解析与 chdir 无关。
|
||||
|
||||
`meta` 只接受 `--resume <id>`。`--config` 会以 harness workspace 启动其他配置树，那属于 `--config` 的场景而非本场景；`-p` 并非交互式。两者都会明确报错，空的 `--resume=` 亦然——与默认界面一致，在那里被吞掉的空 id 会静默开启一个新会话。
|
||||
|
||||
**`meta` 不重新声明 `--resume`。** 对于子命令与父命令共享的选项，Commander 会将其解析进 `program.opts()`，而把子命令自身的 options 对象留空；因此重新声明会静默丢弃该 id（这是通过实测适配器发现的，而非评审发现）。action 读取 `program.opts()`，这同时也允许该标志出现在子命令的任意一侧；`--help` 仍会在父命令的选项中列出它。
|
||||
`meta` 始终启动新会话，且不接受任何默认界面选项；它唯一的选项是[实验性门槛](2026-07-31-experimental-subcommand-gate.md)的 `--experimental`。`--config` 会针对 harness workspace 启动其他配置树，那是默认界面的 `--config` 场景，而不是该命令的场景；`-p` 并非交互式，恢复则通过 `dsh --resume <id>` 重新进入已持久化会话自身的 workspace。任何泄漏的默认界面选项都会明确报错。
|
||||
|
||||
## Testing
|
||||
|
||||
`apps/cli/tests/args.spec.ts` 扩展其已有的两个用例而非新增文件：`meta`、`meta --resume <id>` 与 `--resume <id> meta` 的路由（钉住上述共享选项行为），以及 `meta --resume=`、`meta --config`、`meta -p` 的退出码 1。`runMeta` 自身与 `runTui` 一样，属于该模块既有 `v8 ignore` 块内的组合代码。
|
||||
`apps/cli/tests/args.spec.ts` 钉住 `meta` 的路由、对每个泄漏的默认界面选项的拒绝，以及对旧名称 `experimental-meta` 的拒绝。该分派本身是 `bin.ts` 既有 `v8 ignore` 块内的组合代码。
|
||||
|
||||
该 mode 没有 keyless PTY 冒烟测试。冒烟框架会为每次运行提供临时 cwd，但 `dsh meta` 刻意 chdir 到真实检出目录，因此冒烟测试会在测试中途把 `.sessions/` 写入实际工作树。要正确覆盖它需要一个可注入的目标目录——为了一行 chdir 而引入的测试专用 seam，本 note 不予采纳。
|
||||
|
||||
取而代之的是交互式验证。从 `$HOME` 启动后，`pwd` 工具调用报告的是该检出目录，git 解析到其分支，会话日志落在该检出的 `.sessions/` 下（`~/.sessions` 未被触及，工作树也没有未被忽略的残留），并且从其他目录运行的普通 `dsh` 仍使用调用目录。
|
||||
|
||||
`dsh meta --resume <有效 id>` 曾经开启一个*新*会话而非恢复——这是默认界面上既已存在的缺陷，并非本 mode 引入。[由启动器持有的会话身份与退出行](../architecture/2026-07-28-launcher-owned-resume-identity.md) 查明了原因并将其修复：一个个人 overlay 替换了整个 `tui-agent` 配置块，用对一个未设置的环境变量的读取覆盖了已交付的 `resumeSessionId` 入口，因此有效的 id 会被静默忽略。会话标识如今是一个启动器拥有的上下文槽位，没有任何配置键能取代它，而 `meta` 经由它进行路由。
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**通过 `boot` 与配置树显式传递 workspace。** 这可避免修改进程级状态，但已交付的配置在三处读取 cwd（`!!js process.cwd()`、`persistenceRoot`、HMR `root`），每一处都需要各自新增管线与配置键才能保持一致。启动前 chdir 只在本就表达该含义的接缝上表达一次“这就是 workspace”。
|
||||
|
||||
**在默认界面上加一个 `--meta` 标志。** 拒绝：默认界面是纯选项形式，以免子命令与位置参数冲突；而一个会静默改变 workspace 的标志读起来像是对当前目录的修饰，而非另一个目标。`meta` 与 `web` 并列符合既有形态。
|
||||
**在默认界面上加一个 `--experimental-meta` 标志。** 拒绝：默认界面是纯选项形式，以免子命令与位置参数冲突；而一个会静默改变 workspace 的标志读起来像是对当前目录的修饰，而非另一个目标。`meta` 与 `web` 并列符合既有形态。
|
||||
|
||||
**解析 `~/.dsh/source/current` 而非启动器自身路径。** 拒绝：当直接调用某个非安装检出的 `bin/dsh` 时，它会与 `harness:source` 提示词路径产生偏离——告知模型一个源码根目录，却在另一个目录中工作。
|
||||
|
||||
**让打印的恢复提示随 mode 变化。** 在此作为已知代价推迟，随后由 [由启动器持有的会话身份与退出行](../architecture/2026-07-28-launcher-owned-resume-identity.md) 交付：退出行变成了一个启动器提供的上下文槽位，因此 meta 模式打印 `dsh meta --resume <id>`，被复制的提示在任意目录下都有效。它此前来自静态配置，固定为 `dsh --resume {session}`，且只有在检出目录中重新运行才有效。
|
||||
|
||||
## Consequences
|
||||
|
||||
在 dsh 自身源码上开启会话变成了在任意位置执行 `dsh meta`，且该 workspace 必然就是告知模型的那个检出目录。meta 会话被隔离在检出目录的 `.sessions/` 内，因此 `dsh meta --resume` 只能看到其他 meta 会话——这是预期行为，因为会话记录的 cwd 属于它的 workspace。
|
||||
|
||||
恢复提示曾是本 mode 的原初代价，如今已解决。[由启动器持有的会话身份与退出行](../architecture/2026-07-28-launcher-owned-resume-identity.md) 让打印的行与原地 `/resume` 移交都从同一个共享的 argv 辅助函数将该 mode 复现为 `dsh meta --resume <id>`，因此被复制的提示在任意目录下都有效，且移交不再隐式依赖于 `execve` 保留进程 cwd。
|
||||
在 dsh 自身源码上开启会话变成了在任意位置执行 `dsh meta --experimental`（在 `DSH_EXPERIMENTAL=1` 下可直接执行 `dsh meta`），且该 workspace 必然就是告知模型的那个检出目录。该命令始终启动新会话；之后，普通的 `dsh --resume <id>` 会恢复该会话并进入其已持久化的 workspace。
|
||||
|
||||
`runTui` 新增一个可选第三参数，因此 workspace 覆盖是在拥有 TUI 组合逻辑的那唯一一个函数上可见的，而不是隐藏在它的第二份副本中。
|
||||
|
||||
@@ -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-sdk-max-output-tokens.md
|
||||
2026-07-28-sdk-max-output-tokens.md: 5db48f21892d56addea7b72f73319f9dbfd1e71f
|
||||
2026-07-28-sdk-max-output-tokens.zh.md: 38b172718716d100726188163ff22be9ea0a7325
|
||||
2026-07-28-sdk-max-output-tokens.md: 3ba3e226d64b7d3d192d67bd88af463d2b0d9dc5
|
||||
2026-07-28-sdk-max-output-tokens.zh.md: aec566011d2d7a311b4de509c47ebba383c3b0d7
|
||||
|
||||
@@ -12,7 +12,7 @@ The Python and TypeScript SDKs could select a provider and model but could not b
|
||||
|
||||
The high-level SDKs expose one optional process-wide output cap: Python names it `max_tokens`, TypeScript names it `maxTokens`, and the shared `initialize` wire payload carries `maxTokens`. The JSON-RPC server rejects values that are not positive safe integers and stores the accepted cap with its provider/model route.
|
||||
|
||||
Each SDK-created root Agent receives the cap through `AgentOptions.maxTokens`. Agent Loop places that value in the initial `LlmCallConfig`, logs it in the request header, and reconstructs every dispatched conversation request from that durable header. Omitting the option leaves `maxTokens` absent so the selected provider retains its default.
|
||||
Each SDK-created root Agent receives the cap through `AgentOptions.maxTokens`. Agent Loop places that value in the initial `LlmCallConfig`; final call preparation preserves the explicit value or materializes an exact-model adapter default, logs the effective cap in the request header, and reconstructs every dispatched conversation request from that durable header. Omitting the SDK option therefore allows the selected adapter or provider route default to apply.
|
||||
|
||||
In-process subagents inherit the parent's provider, model, and output cap. An explicit `SubagentStartRequest.agentOptions.maxTokens`, including one configured by `dsh-tool-subagent`, overrides the inherited value for that child and its descendants. Out-of-process providers own the configuration of their separate runtime; `subagent-dsh-sdk` therefore exposes its own optional `maxTokens` and forwards it through that child runtime's SDK handshake.
|
||||
|
||||
@@ -20,7 +20,7 @@ Compaction, session-title generation, web search, and other auxiliary calls keep
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Set an adapter environment variable.** This would be DeepSeek-adapter-specific, invisible in the session request header, ineffective for intercepted or alternate adapters, and easy to confuse with a provider default. The cap belongs in provider-neutral request configuration.
|
||||
**Set only an adapter environment variable.** A serializer-private fallback would be DeepSeek-adapter-specific, invisible in the session request header, ineffective for intercepted or alternate adapters, and easy to confuse with a provider default. Adapter-owned defaults may instead be exposed as exact-model metadata and materialized into provider-neutral request configuration before logging.
|
||||
|
||||
**Add `maxTokens` to every `session/prompt`.** Per-turn mutation would enlarge the wire and introduce request-config transitions that callers do not need for the current evaluation use case. A runtime initialization option gives every session in one SDK process the same reproducible budget.
|
||||
|
||||
|
||||
@@ -12,7 +12,7 @@ Python 与 TypeScript SDK 可以选择提供方和模型，却无法限制对话
|
||||
|
||||
高层 SDK 公开一个可选的进程级输出上限：Python 命名为 `max_tokens`，TypeScript 命名为 `maxTokens`，共享的 `initialize` 线载荷使用 `maxTokens`。JSON-RPC 服务端拒绝非正安全整数，并将通过校验的上限与提供方／模型路由一同保存。
|
||||
|
||||
每个由 SDK 创建的根 Agent 都通过 `AgentOptions.maxTokens` 获得该上限。Agent Loop 将它放入初始 `LlmCallConfig`、记录到请求 header，并从该持久化 header 重建每次分派的对话请求。省略该选项时，`maxTokens` 保持缺失，由所选提供方保留默认值。
|
||||
每个由 SDK 创建的根 Agent 都通过 `AgentOptions.maxTokens` 获得该上限。Agent Loop 将它放入初始 `LlmCallConfig`；最终调用准备会保留显式值，或填入确切模型的适配器默认值，再将生效上限记录到请求 header，并从该持久化 header 重建每次分派的对话请求。因此，省略 SDK 选项时会应用所选适配器或提供方路由的默认值。
|
||||
|
||||
进程内 subagent 继承父级的提供方、模型和输出上限。显式的 `SubagentStartRequest.agentOptions.maxTokens`（包括通过 `dsh-tool-subagent` 配置的值）会覆盖该子级及其后代的继承值。进程外提供方自行持有其独立运行时的配置；因此 `subagent-dsh-sdk` 公开独立的可选 `maxTokens`，并通过该子运行时自己的 SDK 握手传入。
|
||||
|
||||
@@ -20,7 +20,7 @@ Python 与 TypeScript SDK 可以选择提供方和模型，却无法限制对话
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**设置适配器环境变量。** 这种方式仅适用于 DeepSeek 适配器，不会出现在会话请求 header 中，对被拦截请求或其他适配器无效，也容易与提供方默认值混淆。该上限属于提供方无关的请求配置。
|
||||
**仅设置适配器环境变量。** 序列化器私有回退仅适用于 DeepSeek 适配器，不会出现在会话请求 header 中，对被拦截请求或其他适配器无效，也容易与提供方默认值混淆。适配器持有的默认值可以改为通过确切模型元数据公开，并在记录前填入提供方无关的请求配置。
|
||||
|
||||
**在每个 `session/prompt` 上增加 `maxTokens`。** 按轮次修改会扩大线协议，并引入当前评测用例不需要的请求配置转换。运行时初始化选项可让一个 SDK 进程中的每个会话拥有相同、可重现的预算。
|
||||
|
||||
|
||||
@@ -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/2026-07-29-addressable-queue-operations.md
|
||||
2026-07-29-addressable-queue-operations.md: 78a7d346163bb7e5e76c989c6e93576b4a6cee64
|
||||
2026-07-29-addressable-queue-operations.zh.md: 050b9755ad4ebe70e2bdcafb711ef279331e27af
|
||||
2026-07-29-addressable-queue-operations.md: 04bcaa26be2f4f70c4003f6cc2fce4798499d205
|
||||
2026-07-29-addressable-queue-operations.zh.md: a16bf8667294de8d08da54ddb0d317bf9938e4eb
|
||||
|
||||
@@ -12,13 +12,13 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
|
||||
|
||||
**Each accepted FIFO occurrence has its own identity.** AgentLoop mints an opaque `InboxItemId` and publishes an `InboxItem` containing that id, the identified `UserMessage`, and its acceptance-time `queued | steering` placement. Reusing one `MessageId` creates distinct inbox identities. Injection bypasses the FIFOs and receives no inbox identity.
|
||||
|
||||
**Mutation ends at driver claim.** `Agent.updateInbox(id, action)` synchronously searches the pending queued FIFO. Edit replaces frozen content while preserving `InboxItemId`, `MessageId`, source, wake policy, and position. Remove emits the occurrence’s terminal discard. Steering and driver-claimed occurrences return `not-found`, so queue operations never rewrite active-turn input or durable history.
|
||||
**Mutation ends at driver claim.** `Agent.updateInbox(id, action)` synchronously searches the pending queued FIFO. Edit replaces frozen content while preserving `InboxItemId`, `MessageId`, source, wake policy, and position. Remove emits the occurrence’s terminal discard. Strict steer transfers the message into an open next-step window as a new steering occurrence; a closed window returns `steer-unavailable` without changing the queued item. Pending steering and driver-claimed occurrences return `not-found`, so later mutations never rewrite active-turn input or durable history.
|
||||
|
||||
**The live ledger is authoritative.** `agent/inbox/enqueue`, `update`, `dequeue`, and `discard` maintain a Host mirror of queued occurrences. A synchronously re-entrant update or terminal event may reach the mirror before its outer enqueue listener; the mirror retains that unseen outcome for the current dispatch and folds it into the enqueue, so listener registration order cannot publish stale content or a ghost row. The wire sends complete `session/queue` snapshots rather than incremental guesses. Reconnect sends the current baseline, and every queued mutation or terminal event replaces it. The client applies no optimistic edit and never retires a row from durable turn events or status changes.
|
||||
|
||||
**Queue addresses require a live Agent.** `session.updateQueue` queries only the mounted Agent registry and never resumes a cold session: an `InboxItemId` is process-local and cannot name work after restart or disposal. A missing Agent and a driver-claimed occurrence both return `queue-item-not-found`.
|
||||
**Queue addresses require a live ordinary-session Agent.** `session.updateQueue` queries only the mounted Agent registry and never resumes a cold session: an `InboxItemId` is process-local and cannot name work after restart or disposal. A session-backed subagent returns `agent-busy` before inbox access and retains its continuation owner; for ordinary sessions, a missing Agent and a driver-claimed occurrence both return `queue-item-not-found`.
|
||||
|
||||
**Web actions address Queue only.** The Host excludes pending steering from `session/queue`; steering retains its existing durable transcript path after consumption. QueueDock exposes edit and delete, but no send-now control. The UI derives queue row and mutation types from the runtime `SessionFace` contract rather than importing the connection plugin, so plugin cooperation continues through services and snapshots. Edit is available only when all content blocks are text; the editor cannot silently drop non-text blocks. An editing row exposes only save and cancel, with Enter and Escape as their keyboard equivalents. Delete removes the exact occurrence.
|
||||
**Web actions address Queue only.** The placement-aware `session/queue` snapshot carries both queued and pending-steering occurrences; QueueDock selects only queued items, while ChatView projects steering and retains the existing durable transcript path after consumption. QueueDock hides while empty, renders one pending occurrence directly, and defaults two or more occurrences to a collapsed `"<n> 条排队消息"` header that expands or collapses the complete list. The header exposes `aria-expanded` and `aria-controls`; the expanded list scrolls within a 180px height bound. An active edit or mutation keeps its rows visible, and emptying the queue restores the collapsed default for the next queue. Visible rows expose edit, delete, and a running-only strict-steer action. The UI derives queue row and mutation types from the runtime `SessionFace` contract rather than importing the connection plugin, so plugin cooperation continues through services and snapshots. Edit is available only when all content blocks are text; the editor cannot silently drop non-text blocks. An editing row exposes only save and cancel, with Enter and Escape as their keyboard equivalents. Delete removes the exact occurrence, while strict steer preserves every content block and retires the row only through the authoritative snapshot. The Web stop action preserves pending Queue work; AgentLoop claims the next waking occurrence only after the interrupted turn reaches quiescence, and its dequeue event retires that row without a browser resend. The [Web Queue steer action](2026-07-30-web-queue-steer-action.md) owns the strict transfer and pending-projection contract.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -26,7 +26,7 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
|
||||
|
||||
**Apply optimistic browser mutations.** Rejected because driver claim and another client can win before the Host action. Waiting for the authoritative snapshot makes the ownership boundary visible and lets `queue-item-not-found` report a real race.
|
||||
|
||||
**Include pending steering in the queue mutation protocol.** Rejected because QueueDock has no steering interaction, and editing or deleting active-turn input would widen this feature beyond its current consumer. A dedicated steering interaction owns that delivery contract.
|
||||
**Allow editing or removal of pending steering.** Rejected because QueueDock only addresses independent queued turns. Once strict steer succeeds, the new steering occurrence belongs to the active turn and remains outside this mutation surface.
|
||||
|
||||
**Expose a protocol-only promotion operation.** Rejected because no product interaction reorders Queue. A public operation without a current consumer would add ordering semantics and tests for speculative use.
|
||||
|
||||
@@ -34,10 +34,10 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
|
||||
|
||||
## Verification
|
||||
|
||||
AgentLoop contract tests hold prompt admission while editing and removing exact queued occurrences, reject mutations of steering occurrences, and verify the resulting independent turn and terminal lifecycle events. Host schema and proxy tests cover queued-only authoritative snapshots, synchronous re-entrant mutation order, reconnect, cold-Agent rejection, typed not-found errors, and the RPC transport. Client runtime and QueueDock tests cover non-optimistic projection, text-only editing, save and cancel affordances, removal, retirement races, and disabled mixed-content editing. Keyless browser scenarios drive the exposed edit and delete actions through the built Web composition and real HTTP/SSE wire.
|
||||
AgentLoop contract tests hold prompt admission while editing, removing, and strictly steering exact queued occurrences; they reject mutations of steering occurrences and verify the resulting independent turn and terminal lifecycle events. Host schema and proxy tests cover queued-only authoritative snapshots, synchronous re-entrant mutation order, reconnect, cold-Agent rejection, typed race errors, and the RPC transport. Client runtime and QueueDock tests cover non-optimistic projection, single-row presentation, default multi-row collapse, interaction-forced visibility, reset after emptying, expansion, text-only editing, save and cancel affordances, removal, strict steer, retirement races, and disabled mixed-content editing. Keyless browser scenarios drive all three exposed actions through the built Web composition and real HTTP/SSE wire, then stop consecutive active turns to prove the preserved FIFO advances without clearing its tail.
|
||||
|
||||
## Consequences
|
||||
|
||||
Queued work gains precise row operations without becoming durable session history. Occurrence identity is a live process-local capability and disappears at claim, cancellation, disposal, or restart; reconnect recovers only queued items still held by the live Agent. Editing excludes mixed content until an editor can preserve every block, while pending steering remains outside this operation surface.
|
||||
Queued work gains precise row operations without becoming durable session history. Occurrence identity is a live process-local capability and disappears at claim, strict transfer, broad cancellation, disposal, or restart; the Web stop action preserves queued occurrences until a later claim, while reconnect recovers only queued items still held by the live Agent. Editing excludes mixed content until an editor can preserve every block, while pending steering remains outside the projection and operation surface.
|
||||
|
||||
The protocol now carries full queue snapshots on each change. Queues are expected to remain short, so deterministic recovery and multi-client convergence are preferred over an incremental mutation protocol.
|
||||
|
||||
@@ -12,13 +12,13 @@ Web 队列能够渲染待处理消息，但无法编辑或删除其中某一行
|
||||
|
||||
**每次获准进入 FIFO 的项都有独立标识。** AgentLoop 会铸造不透明的 `InboxItemId`，并发布一个 `InboxItem`，其中包含该 id、已有标识的 `UserMessage`，以及接受时确定的 `queued | steering` 放置方式。复用同一个 `MessageId` 会创建不同的 inbox 标识。注入绕过 FIFO，因此不会获得 inbox 标识。
|
||||
|
||||
**变更边界止于驱动器认领。** `Agent.updateInbox(id, action)` 会同步搜索待处理的 queued FIFO。编辑会替换已冻结的内容，同时保留 `InboxItemId`、`MessageId`、来源、唤醒策略和位置。移除会发出该次入队项的终态 discard。steering（中途引导）项和已被驱动器认领的项会返回 `not-found`，因此队列操作绝不会改写活动轮次输入或持久历史。
|
||||
**变更边界止于驱动器认领。** `Agent.updateInbox(id, action)` 会同步搜索待处理的 queued FIFO。编辑会替换已冻结的内容，同时保留 `InboxItemId`、`MessageId`、来源、唤醒策略和位置。移除会发出该次入队项的终态 discard。严格 steering（中途引导）会把消息作为新的 steering 单次入队项转移到开放的 next-step 窗口；窗口关闭时返回 `steer-unavailable`，且不改变 queued 项。待处理 steering 和已被驱动器认领的项会返回 `not-found`，因此后续变更绝不会改写活动轮次输入或持久历史。
|
||||
|
||||
**实时账本是权威状态。** `agent/inbox/enqueue`、`update`、`dequeue` 和 `discard` 共同维护 queued 入队项的 Host 镜像。同步可重入的 update 或终态事件可能先于外层 enqueue 监听器到达镜像；镜像会在当前分发期间保留这一尚不可见的结果，并在处理 enqueue 时把它合并进去，因此监听器注册顺序不会导致系统发布陈旧内容或不存在的行。协议发送完整的 `session/queue` 快照，而非增量猜测。重连会发送当前基线，每次 queued 变更或终态事件都会整体替换它。客户端不会进行乐观编辑，也绝不根据持久轮次事件或状态变化退役队列行。
|
||||
|
||||
**Queue 寻址要求 Agent 存活。** `session.updateQueue` 只查询已挂载的 Agent 注册表，绝不恢复冷会话：`InboxItemId` 属于进程本地标识，无法在重启或资源释放后继续指向工作。Agent 缺失和单次入队项已被驱动器认领这两种情况都返回 `queue-item-not-found`。
|
||||
**Queue 寻址要求普通会话的 Agent 存活。** `session.updateQueue` 只查询已挂载的 Agent 注册表，绝不恢复冷会话：`InboxItemId` 属于进程本地标识，无法在重启或资源释放后继续指向工作。由会话支撑的 subagent 会在访问 inbox 前返回 `agent-busy`，并保留其继续执行 owner；对于普通会话，Agent 缺失和单次入队项已被驱动器认领这两种情况都返回 `queue-item-not-found`。
|
||||
|
||||
**Web 操作只面向 Queue。** Host 从 `session/queue` 中排除待处理 steering；steering 消费后仍沿用既有的持久 transcript（文本记录）路径。QueueDock 暴露编辑和删除，不提供立即发送控件。UI 从运行时 `SessionFace` 契约派生队列行与变更类型，而不是导入连接插件，因此插件仍通过服务和快照协作。仅当所有内容块都是文本时才提供编辑功能；编辑器不能静默丢弃非文本块。编辑中的行只展示保存和取消操作，对应的键盘操作分别是 Enter 和 Escape。删除会移除对应的精确入队项。
|
||||
**Web 操作只面向 Queue。** 带 placement 的 `session/queue` 会同时携带 queued 和待处理 steering；QueueDock 只选择 queued 项，ChatView 则投影 steering，并在消费后沿用既有的持久 transcript（文本记录）路径。QueueDock 在队列为空时隐藏，只有一个待处理项时直接渲染该行，存在两个或更多待处理项时则默认收起为可展开或收起完整列表的 `"<n> 条排队消息"` 表头。表头暴露 `aria-expanded` 和 `aria-controls`；展开后的列表以 180px 为高度上限，并可滚动。存在进行中的编辑或变更时，列表行会保持可见；队列清空后，下一次出现队列时会恢复默认收起状态。可见行暴露编辑、删除以及仅在运行期间可用的严格 steering 操作。UI 从运行时 `SessionFace` 契约派生队列行与变更类型，而不是导入连接插件，因此插件仍通过服务和快照协作。仅当所有内容块都是文本时才提供编辑功能；编辑器不能静默丢弃非文本块。编辑中的行只展示保存和取消操作，对应的键盘操作分别是 Enter 和 Escape。删除会移除对应的精确入队项；严格 steering 会保留每个内容块，并且只通过权威快照退役该行。Web 停止操作会保留待处理 Queue 工作；只有在被中断轮次达到完全停稳后，AgentLoop 才认领下一个可唤醒入队项，其出队事件会退役该行，无需浏览器重发。[Web Queue steering 操作](2026-07-30-web-queue-steer-action.md)负责定义严格转移与待处理投影契约。
|
||||
|
||||
## 考虑过的替代方案
|
||||
|
||||
@@ -26,7 +26,7 @@ Web 队列能够渲染待处理消息，但无法编辑或删除其中某一行
|
||||
|
||||
**在浏览器中进行乐观变更。** 不予采纳，因为驱动器认领或另一个客户端可能先于 Host 操作完成。等待权威快照可以显式呈现所有权边界，并让 `queue-item-not-found` 报告真实竞态。
|
||||
|
||||
**将待处理 steering 纳入队列变更协议。** 不予采纳，因为 QueueDock 没有 steering 交互，而编辑或删除活动轮次输入会把此功能扩展到当前消费方之外。应由专用 steering 交互负责该投递契约。
|
||||
**允许编辑或移除待处理 steering。** 不予采纳，因为 QueueDock 只寻址独立的 queued 轮次。严格 steering 一旦成功，新的 steering 单次入队项就属于活动轮次，并且不再位于此变更接口内。
|
||||
|
||||
**暴露仅协议层的前移操作。** 不予采纳，因为当前没有产品交互会重新排序 Queue。公开一个没有当前消费方的操作，会为了推测性用途引入排序语义和测试。
|
||||
|
||||
@@ -34,10 +34,10 @@ Web 队列能够渲染待处理消息，但无法编辑或删除其中某一行
|
||||
|
||||
## 验证
|
||||
|
||||
AgentLoop 契约测试会在编辑和移除精确 queued 入队项时阻塞提示词接纳，拒绝对 steering 入队项的变更，并验证所得独立轮次及终态生命周期事件。Host schema 与代理测试覆盖仅含 queued 项的权威快照、同步可重入变更顺序、重连、拒绝冷 Agent、类型化 not-found 错误和 RPC 传输。客户端运行时和 QueueDock 测试覆盖非乐观投影、仅文本编辑、保存与取消入口、移除、退役竞态，以及禁用混合内容编辑。无密钥浏览器场景会通过构建后的 Web 组合和真实 HTTP／SSE 协议操作公开的编辑和删除。
|
||||
AgentLoop 契约测试会在编辑、移除和严格 steering 精确 queued 入队项时保持提示词接纳窗口打开，拒绝对 steering 入队项的变更，并验证所得独立轮次及终态生命周期事件。Host schema 与代理测试覆盖仅含 queued 项的权威快照、同步可重入变更顺序、重连、拒绝冷 Agent、类型化竞态错误和 RPC 传输。客户端运行时和 QueueDock 测试覆盖非乐观投影、单行呈现、多行默认收起、交互期间强制保持可见、清空后重置、展开、仅文本编辑、保存与取消入口、移除、严格 steering、退役竞态，以及禁用混合内容编辑。无密钥浏览器场景会通过构建后的 Web 组合和真实 HTTP／SSE 协议执行公开的全部三项操作，随后连续停止活动轮次，证明保留的 FIFO 会继续推进且不清空队尾。
|
||||
|
||||
## 后果
|
||||
|
||||
queued 工作获得精确的行操作，但不会因此成为持久会话历史。单次入队标识是进程本地的实时寻址凭据，会在认领、取消、dispose 或重启时消失；重连只能恢复仍由活跃 Agent 持有的 queued 项。编辑会排除混合内容，直至编辑器能够保留每个块；待处理 steering 则不属于此操作接口。
|
||||
queued 工作获得精确的行操作，但不会因此成为持久会话历史。单次入队标识是进程本地的实时寻址凭据，会在认领、严格转移、广义取消、dispose 或重启时消失；Web 停止操作会将 queued 入队项保留到后续认领，而重连只能恢复仍由活跃 Agent 持有的 queued 项。编辑会排除混合内容，直至编辑器能够保留每个块；待处理 steering 则不属于此投影和操作接口。
|
||||
|
||||
现在，协议会在每次变更时携带完整队列快照。队列预期保持较短，因此系统优先选择确定性恢复和多客户端收敛，而非增量变更协议。
|
||||
|
||||
@@ -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/2026-07-29-directory-picker-adaptive-default.md
|
||||
2026-07-29-directory-picker-adaptive-default.md: 7ff6529bb8e445f63343b1019ac520f56b19d5e4
|
||||
2026-07-29-directory-picker-adaptive-default.zh.md: a2a2d8ec4c91a347eedfc3aa3413b091ee847934
|
||||
@@ -0,0 +1,30 @@
|
||||
# Agent Note: Adaptive default for the directory-picker interaction
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-29-directory-picker-adaptive-default.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
The [directory-picker seam](../architecture/2026-07-28-directory-picker-capability-seam.md) made the interaction a `cordis.yml` swap point, but the shipped composition still had to pin one backend: `-browse` everywhere meant a local operator never got the OS chooser, `-native` everywhere breaks every remote deployment. The right default depends on facts only the running host knows — where the server binds, whether the process was launched over SSH, whether a display session exists — so no static row is correct for all deployments.
|
||||
|
||||
## Decision
|
||||
|
||||
A third sibling package, **`dsh-host-directory-picker-auto`**: a node-half-only *chooser* that owns no picking code and no UI. Its `apply` samples the host facts exactly once at boot — bind host from the injected `httpServer` (a new `host` getter mirrors the existing `port`), `SSH_CONNECTION`/`SSH_TTY`, platform, `DISPLAY`/`WAYLAND_DISPLAY`, and a `PATH` probe for a Linux chooser binary (zenity/kdialog) — resolves them through one exported pure function, and mounts the chosen dual-face backend with `ctx.loader.create({name})` into the Loader's **in-memory root tree**; the effect's disposer removes the entry and joins the backend fiber's teardown (`remove()` alone only starts it), so unloading the chooser settles only after the backend quiesced. `native` requires every attended-and-servable signal: loopback bind ∧ no SSH markers ∧ a display session the native backend can drive — assumed on darwin/win32, requiring `DISPLAY`/`WAYLAND_DISPLAY` plus a chooser binary on linux, and never true elsewhere (the native backend supports exactly darwin/win32/linux). Anything ambiguous resolves to `browse`, which works everywhere. `apps/cli` now mounts `-auto` as its `directory-picker` row; composing `-native` or `-browse` directly remains the pin.
|
||||
|
||||
Why entry-level mounting is the load-bearing mechanism: the client module table (`dsh-client-modules`) reconciles **Loader entries** reactively over `internal/plugin`, so a backend mounted as a real entry gets its browser half discovered exactly as a config-row's would be — the seam's one-row-swaps-both-faces invariant survives adaptivity with zero duplicated client code. The dev HMR row (`AppCLIEntry`) is the mechanism precedent. Root-tree targeting matters: the root tree's `write()` is a no-op, so the resolved row can never be persisted back into `cordis.yml` (the Include subtree *does* write).
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
- **Boot-glue resolution in `AppCLIEntry`** (ship both rows with static `disabled`, patch `disabled` from a `--directory-picker=auto|native|browse` flag). Works — `PatchOptions` patches metadata, and the modules scan skips disabled rows — but leaves the decision app-private where every future composition re-implements it; the chooser plugin gives any `cordis.yml` the same one-row adaptivity. Reintroduce the flag only when a deployment needs to *force* a backend without editing its yml.
|
||||
- **One merged plugin branching per call** (client tries `pick`, falls back to the browse dialog on `directory-picker-unavailable`). Rejected: the client would need both flows in one bundle — the bundle-purity gate forbids cross-plugin value imports and jscpd forbids copying the dialog — and per-call probing pays a doomed RPC on every open of a browse host.
|
||||
- **Resurrecting the wire advertisement** so both client flows mount and branch on the host's kind. Rejected: reverses the seam note's deletion for no consumer the chooser doesn't already serve, and collides with the `single` directory-flow holes.
|
||||
- **Per-connection adaptivity** (native for a loopback browser, browse for a remote one, same server). Deferred: needs a per-client capability, the advertisement above, and both flows mounted; no deployment serves both operator shapes at once today.
|
||||
|
||||
## Consequences
|
||||
|
||||
- The shipped web GUI adapts out of the box: attended local host → OS chooser; SSH launch, all-interfaces bind, headless host, unsupported platform, or Linux without a chooser binary → in-app browser. Detection infers operator location from launch context, which no launch-side signal can prove: a detached tmux session loses `SSH_*`; a non-Aqua darwin process still counts as displayed; and the `ssh -L` shape (a workstation-local launch later reached through a forwarded port, arriving from `127.0.0.1`) resolves `native` and opens the chooser on the unattended workstation — per-connection adaptivity could not fix that last case either. A wrong `native` choice degrades to the backend's existing retryable failure dialog; deployments in these shapes compose `-browse` directly.
|
||||
- The chooser mounts backends by runtime string (`BACKEND_PACKAGES`, exported), which yml-row scanning cannot see; `verify-cordis-config` therefore requires every composition mounting `-auto` to declare both backends as dependencies, so keyless Linux CI (which only ever resolves `browse`) cannot hide a dropped `-native` dependency. The shipped-tree web e2e/snapshot lane (`apps/web/tests/scaffold.ts`) pins `-browse` by disable+insert patch — its goldens are interaction-specific and must not depend on the host running the suite.
|
||||
- One resolution per boot keeps the seam's capability-stability contract; per-connection shapes remain out of scope until a deployment demands them.
|
||||
- Mounting the chooser **and** a backend row together fails loud (duplicate `directoryPicker` service; duplicate flow in the `single` holes).
|
||||
- The host typecheck aggregate now references the two backend projects (declarations only, node entries carry no client merge) so the chooser's REAL-composition test can mount them — the mirror of the client aggregate's `webserver` reference.
|
||||
@@ -0,0 +1,30 @@
|
||||
# Agent Note：目录选择交互的自适应默认值
|
||||
|
||||
状态：已实现
|
||||
|
||||
[English](2026-07-29-directory-picker-adaptive-default.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
[目录选择 seam](../architecture/2026-07-28-directory-picker-capability-seam.md)把交互形态做成了 `cordis.yml` 的切换点，但随附的组合仍必须固定一个后端：处处用 `-browse` 意味着本地操作者永远得不到 OS 选择器，处处用 `-native` 则弄坏所有远程部署。正确的默认值取决于只有运行中的宿主才知道的事实——服务器绑定在哪里、进程是否经 SSH 启动、是否存在显示会话——因此没有哪一静态行对所有部署都正确。
|
||||
|
||||
## 决策
|
||||
|
||||
第三个同级包 **`dsh-host-directory-picker-auto`**：一个只有 node 半侧的*选择器*，不持有任何选取代码，也没有 UI。它的 `apply` 在启动时恰好采样一次宿主事实——从注入的 `httpServer` 读绑定宿主（新增的 `host` getter 与既有的 `port` 对称）、`SSH_CONNECTION`／`SSH_TTY`、平台、`DISPLAY`／`WAYLAND_DISPLAY`、以及对 Linux 选择器二进制（zenity／kdialog）的一次 `PATH` 探查——经由一个导出的纯函数判定，再用 `ctx.loader.create({name})` 把选中的双面后端挂进 Loader 的**内存根树**；该 effect 的 disposer 会移除该条目并汇入后端 fiber 的拆卸（单靠 `remove()` 只是启动拆卸），因此卸载选择器要到后端静止之后才落定。`native` 要求全部“有人值守且可服务”信号：回环绑定 ∧ 无 SSH 标记 ∧ native 后端能驱动的显示会话——darwin／win32 上视为存在，linux 上要求 `DISPLAY`／`WAYLAND_DISPLAY` 外加一个选择器二进制，其余平台一律不成立（native 后端恰好支持 darwin／win32／linux）。任何含糊情形都判定为处处可用的 `browse`。`apps/cli` 现在把 `-auto` 挂为它的 `directory-picker` 行；直接组合 `-native` 或 `-browse` 仍是固定交互的方式。
|
||||
|
||||
条目级挂载之所以是承重机制：client 模块表（`dsh-client-modules`）基于 `internal/plugin` 对 **Loader 条目**做响应式协调，因此以真实条目挂载的后端，其 browser half 被发现的方式与配置行完全相同——seam 的“一行同时换两面”不变式在自适应下依然成立，且没有一行重复的 client 代码。开发环境的 HMR 行（`AppCLIEntry`）是该机制的先例。瞄准根树很关键：根树的 `write()` 是 no-op，因此判定出的行绝不会被持久化回 `cordis.yml`（Include 子树*会*写回）。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
- **在 `AppCLIEntry` 里做启动胶水判定**（随附两行并带静态 `disabled`，由 `--directory-picker=auto|native|browse` 标志修补 `disabled`）。可行——`PatchOptions` 能修补元数据，模块扫描也会跳过禁用行——但把决策留成应用私有，此后每个组合都要重新实现；选择器插件让任何 `cordis.yml` 都获得同样的一行自适应。只有当某个部署需要不改自己的 yml 就*强制*指定后端时，才重新引入该标志。
|
||||
- **合并成一个按调用分支的插件**（client 先试 `pick`，收到 `directory-picker-unavailable` 再回退到浏览对话框）。否决：client 得把两套流程装进同一个 bundle——bundle 纯净门禁禁止跨插件的值导入，jscpd 禁止复制对话框——而且按调用探测让 browse 宿主每次打开都付出一次注定失败的 RPC。
|
||||
- **复活 wire 广播**，让两套 client 流程都挂载并按宿主的 kind 分支。否决：推翻 seam Agent Note 的那次删除，却服务不了任何选择器尚未服务的消费方，还与 `single` 目录流洞相冲突。
|
||||
- **按连接自适应**（同一台服务器，回环浏览器用 native、远程浏览器用 browse）。延期：需要按客户端的能力对象、上述广播，以及同时挂载两套流程；今天没有部署同时服务两种操作者形态。
|
||||
|
||||
## 后果
|
||||
|
||||
- 随附的 web GUI 开箱即自适应：有人值守的本地宿主 → OS 选择器；SSH 启动、全网卡绑定、无头宿主、不支持的平台，或没有选择器二进制的 Linux → 应用内浏览器。探测是从启动上下文推断操作者位置，而任何启动侧信号都无法证明这一点：脱离的 tmux 会话会丢失 `SSH_*`；非 Aqua 的 darwin 进程仍被算作有显示；而 `ssh -L` 形态（在工作站本地启动、之后经转发端口访问，从 `127.0.0.1` 到达）会判定 `native`，把选择器弹在无人值守的工作站上——即便按连接自适应也修不了最后这一情形。错误的 `native` 选择会退化为后端既有的可重试失败对话框；处于这些形态的部署直接组合 `-browse`。
|
||||
- 选择器按运行时字符串（已导出的 `BACKEND_PACKAGES`）挂载后端，yml 行扫描看不到这一点；因此 `verify-cordis-config` 要求每个挂载 `-auto` 的组合把两个后端都声明为依赖，使无密钥的 Linux CI（它永远只会判定出 `browse`）无法掩盖被丢掉的 `-native` 依赖。随附树的 web e2e／快照通道（`apps/web/tests/scaffold.ts`）以 disable+insert 补丁固定 `-browse`——其 golden 是交互特定的，绝不能依赖运行该套件的宿主。
|
||||
- 每次启动只判定一次，维持 seam 的能力稳定性契约；按连接的形态在有部署提出需求前仍不在范围内。
|
||||
- 同时挂载选择器**和**某个后端行会大声失败（重复的 `directoryPicker` 服务；`single` 洞中的重复流程）。
|
||||
- host 类型检查聚合现在引用两个后端项目（仅声明，node 入口不携带 client 合并），使选择器的 REAL-composition 测试能挂载它们——与 client 聚合对 `webserver` 的引用互为镜像。
|
||||
@@ -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/2026-07-29-persistent-bash-str-replace-editor.md
|
||||
2026-07-29-persistent-bash-str-replace-editor.md: a97af750bdd80ddf38dc2d126e70c245ed035f35
|
||||
2026-07-29-persistent-bash-str-replace-editor.zh.md: 0c2ab26693d90c91d5c41a128ebb77a3c6cc2e7f
|
||||
2026-07-29-persistent-bash-str-replace-editor.md: 22851078c1cc8fa9d5716afa41c8a2e2b7e7725c
|
||||
2026-07-29-persistent-bash-str-replace-editor.zh.md: cf4d18f26d11380a637d573e8ea98cb3ccfcdb59
|
||||
|
||||
@@ -18,6 +18,8 @@ Some deployments need a one-call Bash schema whose shell state survives across m
|
||||
|
||||
Both plugins are included in the Python runtime closure. The persistent Bash closure also includes the PTY service/local backend and the sandbox services required by that backend. Because `node-pty` executes a native `spawn-helper` on macOS, each packaged macOS runtime executable ships with a `-spawn-helper` sibling; Linux uses `forkpty` directly. A pinned `node-pty` patch checks `DSH_NODE_PTY_SPAWN_HELPER` first, so it remains a true override for a current external consumer that supplies a non-sibling helper. When the override is unset, the patch resolves the packaged executable sibling if present and otherwise preserves upstream lookup in ordinary Node runs. The macOS builders fail before publication when the helper is absent or not executable.
|
||||
|
||||
The shipped [`core-web.cordis.yml`](../../../../apps/cli/config/core-web.cordis.yml) overlay composes both plugins over the ordinary Web surface, disables its other model-facing consumers, and leaves the Web host, browser, Workspace, persistence, sandbox, and permission stack in place. The local PTY backend resolves the effective session sandbox mode when it creates the shell. While that owner has an open shell or a spawn in progress, a different permission mode is rejected before its session event commits; the editor continues through the Web filesystem sandbox.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**One combined compatibility plugin.** Rejected because neither tool requires the other and the combined name would tie reusable capabilities to one benchmark.
|
||||
@@ -30,4 +32,4 @@ Both plugins are included in the Python runtime closure. The persistent Bash clo
|
||||
|
||||
## Consequences
|
||||
|
||||
Profiles can reproduce an external agent by configuring persona and descriptions while the underlying packages remain general. Persistent Bash requires an owning Agent and real PTY backend. Shell exit, timeout, or cancellation loses state. The editor delegates security and mutation policy to the mounted filesystem stack. Runtime-wheel consumers still need no Node installation; Linux wheels contain one executable, while macOS wheels also contain its private native helper.
|
||||
Profiles can reproduce an external agent by configuring persona and descriptions while the underlying packages remain general. Persistent Bash requires an owning Agent and real PTY backend. Shell exit, timeout, or cancellation loses state. The editor delegates security and mutation policy to the mounted filesystem stack. The Core Web profile retains Web permissions but must close its persistent shell before changing modes. Runtime-wheel consumers still need no Node installation; Linux wheels contain one executable, while macOS wheels also contain its private native helper.
|
||||
|
||||
@@ -18,6 +18,8 @@
|
||||
|
||||
两个插件都进入 Python runtime 闭包。持久 Bash 的闭包还包含 PTY 服务／本地后端，以及该后端要求的沙箱服务。由于 `node-pty` 在 macOS 上会执行原生 `spawn-helper`，每个打包后的 macOS 运行时可执行文件都会携带一个 `-spawn-helper` 伴随文件；Linux 直接使用 `forkpty`。固定版本的 `node-pty` 补丁会先检查 `DSH_NODE_PTY_SPAWN_HELPER`，因此对当前提供非伴随 helper 的外部消费方而言，该变量仍是真正的覆盖项。未设置该覆盖时，补丁会在打包可执行文件的伴随文件存在时解析它，否则在普通 Node 运行中保留上游查找方式。若 helper 缺失或不可执行，macOS 构建器会在发布前失败。
|
||||
|
||||
已交付的 [`core-web.cordis.yml`](../../../../apps/cli/config/core-web.cordis.yml) 覆盖层在常规 Web 界面之上组合这两个插件，禁用该界面的其他面向模型的消费方，并保留 Web 宿主、浏览器、Workspace、持久化、沙箱与权限栈。本地 PTY 后端会在创建 shell 时解析会话的有效沙箱模式。只要该所有者仍有打开的 shell 或仍在进行中的 spawn，另一种权限模式就会在对应的会话事件提交前遭到拒绝；编辑器则继续经由 Web 文件系统沙箱运行。
|
||||
|
||||
## 考虑过的替代方案
|
||||
|
||||
**单一组合兼容插件。** 被拒绝，因为两个工具互不依赖，组合命名还会把可复用能力绑定到某个基准。
|
||||
@@ -30,4 +32,4 @@
|
||||
|
||||
## 后果
|
||||
|
||||
Profile 可以通过配置 persona 和描述复现外部 Agent，而底层包保持通用。持久 Bash 需要拥有它的 Agent 与真实 PTY 后端；shell 退出、超时或取消会丢失状态。编辑器把安全与变更策略委托给挂载的文件系统栈。运行时 wheel 包的消费方仍无需安装 Node；Linux wheel 包包含一个可执行文件，macOS wheel 包还包含其私有原生 helper。
|
||||
Profile 可以通过配置 persona 和描述复现外部 Agent，而底层包保持通用。持久 Bash 需要拥有它的 Agent 与真实 PTY 后端；shell 退出、超时或取消会丢失状态。编辑器把安全与变更策略委托给挂载的文件系统栈。Core Web profile 保留 Web 权限，但必须先关闭持久 shell 才能更改权限模式。运行时 wheel 包的消费方仍无需安装 Node；Linux wheel 包包含一个可执行文件，macOS wheel 包还包含其私有原生 helper。
|
||||
|
||||
@@ -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/2026-07-29-web-message-icon-actions-and-clock.md
|
||||
2026-07-29-web-message-icon-actions-and-clock.md: e79662056792c3ab413468ad038dec40455be767
|
||||
2026-07-29-web-message-icon-actions-and-clock.zh.md: 72d3b4e0cda19438f2f46fd402b3b76de3726ae5
|
||||
2026-07-29-web-message-icon-actions-and-clock.md: f43f7f9c9687e4494993d7e225d11cf6446a9954
|
||||
2026-07-29-web-message-icon-actions-and-clock.zh.md: 866fae79f6ad3ea2cb80e5443d2cf5f763562d29
|
||||
|
||||
@@ -10,9 +10,9 @@ The web chat user bubble already had copy / branch / edit IconActions but no clo
|
||||
|
||||
## Decision
|
||||
|
||||
**User bubbles prepend a date-aware local clock to the existing IconActions row; finalized assistant *content* nodes (non-empty text blocks) append a copy / branch / clock row with `margin-top: 16px`; both seats stay visible whenever mounted and re-format at the next local midnight.**
|
||||
**User bubbles prepend a date-aware local clock to the existing IconActions row; the last content-text assistant of each turn appends a copy / branch / clock row with `margin-top: 16px`; both seats stay visible whenever mounted and re-format at the next local midnight.**
|
||||
|
||||
Both seats format `node.time` through `formatMessageClock`: same calendar day → `HH:mm`, earlier this year → `M月D日 HH:mm`, other years → `YYYY年M月D日 HH:mm`. `useCalendarDay` is a component-local day tick (timeout to the next local midnight) so memoized rows re-render when the calendar day changes without a new framework hook. `MessageItem` places the label before copy (figma `388:20051`). `AssistantMarkdown` places it after branch (figma `43:32997`) only when `streaming` is false, the event time is known, and the node has non-empty text content; Think-only nodes and the streaming tail omit the row. Copy writes joined text blocks. Branch stays a chrome stub. Clipboard write and the clock helpers live in `message-chrome.ts`. The assembled surface is pinned by `apps/web/tests/message-actions.e2e.ts` (cold-seeded history + aria golden); aria normalization collapses every clock shape to `{{clock}}`.
|
||||
Both seats format `node.time` through `formatMessageClock`: same calendar day → `HH:mm`, earlier this year → `M月D日 HH:mm`, other years → `YYYY年M月D日 HH:mm`. `useCalendarDay` is a component-local day tick (timeout to the next local midnight) so memoized rows re-render when the calendar day changes without a new framework hook. `MessageItem` places the label before copy (figma `388:20051`). `ChatView` derives turn-tail seqs via `assistantActionsSeqs` and withholds `time` for mid-turn content; `AssistantMarkdown` places the row after branch (figma `43:32997`) only when `streaming` is false, the event time is known, and the node has non-empty text content. Think-only nodes, mid-turn narration, and the streaming tail omit the row. Copy writes joined text blocks. Both message rows pass their event's `seq` to the same fork callback; [Web session fork actions](2026-07-27-web-session-fork-actions.md) define the real mutation contract. Clipboard write and the clock helpers live in `message-chrome.ts`. The assembled surface is pinned by `apps/web/tests/message-actions.e2e.ts` (cold-seeded history + aria golden); aria normalization collapses every clock shape to `{{clock}}`.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
@@ -20,12 +20,14 @@ Both seats format `node.time` through `formatMessageClock`: same calendar day
|
||||
|
||||
**Put IconActions under every finalized assistant node (including Think-only).** Rejected: copy has nothing useful to write without text content, and repeating the chrome under every step/Think row clutters the flow; only content output owns the seat.
|
||||
|
||||
**Put IconActions under every content-text assistant in a multi-step turn.** Rejected: mid-turn narration (text before tools) is not the settled answer; repeating copy/branch/clock under each step clutters the flow. Only the last content assistant of the turn owns the seat.
|
||||
|
||||
**Hover-reveal the action row on hover-capable pointers.** Rejected: once the row exists it should stay discoverable; opacity hiding made the chrome easy to miss and required parent hover selectors that duplicated the mount gate.
|
||||
|
||||
**Wire branch to a real session fork.** Rejected for this change: same rationale as the archived [user IconActions note](../../archived/feature/2026-07-27-user-message-icon-actions.md) — the mutation path is unspecified; the button reserves the design seat.
|
||||
**Let the IconActions decision also define session fork semantics.** Rejected: this note owns only message chrome, clocks, and mount gating; boundary selection, failure behavior, and switching semantics belong to the separate [Web session fork actions](2026-07-27-web-session-fork-actions.md), keeping presentation components from becoming a second home for session mutation.
|
||||
|
||||
**Publish the calendar day through a chat store or inject hook.** Rejected: the day tick is presentation-only local state with no cross-entry consumers; a component-local timeout matches the client rule that behavioral hooks may own state that does not subscribe to an external source.
|
||||
|
||||
## Consequences
|
||||
|
||||
Settled assistant content answers expose copy and the event clock as soon as the row mounts; Think-only nodes stay chrome-free; branch stays a stub. User and assistant clocks share the same day/year widening rules and refresh after midnight without a message mutation. Per-message paging remains a deferred footer seat in the package README. Package tests pin the three clock shapes, the midnight widen, and the content-only assistant gate; the web e2e scenario pins the assembled IconActions chrome.
|
||||
Each turn's last settled content answer exposes copy, branch, and the event clock as soon as the row mounts; mid-turn content and Think-only nodes stay chrome-free. User and assistant clocks share the same day/year widening rules and refresh after midnight without a message mutation. Per-message paging remains a deferred footer seat in the package README. Package tests pin the three clock shapes, the midnight widen, the content-only assistant gate, the turn-tail seq gate, and the respective event `seq` values passed by the user and assistant branch buttons; the web e2e scenario pins the assembled IconActions chrome.
|
||||
|
||||
@@ -10,9 +10,9 @@ Web 聊天的用户气泡已有复制／分支／编辑 IconActions，但没有
|
||||
|
||||
## 决策
|
||||
|
||||
**用户气泡在既有 IconActions 行前追加感知日期的本地时钟；已定稿的 assistant *内容*节点（非空 text 块）在正文下追加带 `margin-top: 16px` 的复制／分支／时钟；两边只要挂载就保持可见，并在下一个本地午夜重新格式化。**
|
||||
**用户气泡在既有 IconActions 行前追加感知日期的本地时钟；每个轮次中最后一条带 text 内容的 assistant 在正文下追加带 `margin-top: 16px` 的复制／分支／时钟；两边只要挂载就保持可见，并在下一个本地午夜重新格式化。**
|
||||
|
||||
两边都通过 `formatMessageClock` 格式化 `node.time`：同一日历日 → `HH:mm`，同年更早 → `M月D日 HH:mm`，跨年 → `YYYY年M月D日 HH:mm`。`useCalendarDay` 是组件本地的日刻度（定时到下一个本地午夜），因此 memo 行在日历日变化时会重渲染，且不新增框架 hook。`MessageItem` 把标签放在复制之前（figma `388:20051`）。`AssistantMarkdown` 把它放在分支之后（figma `43:32997`），且仅在 `streaming` 为 false、已知事件时间、且节点含非空 text 内容时渲染；纯 Think 节点与流式尾部省略该行。复制写入拼接后的 text 块。分支仍是 chrome stub。剪贴板写入与时钟辅助函数放在 `message-chrome.ts`。组装面由 `apps/web/tests/message-actions.e2e.ts`（冷 seed 历史 + aria golden）钉住；aria 归一化把每种时钟形态折叠为 `{{clock}}`。
|
||||
两边都通过 `formatMessageClock` 格式化 `node.time`：同一日历日 → `HH:mm`，同年更早 → `M月D日 HH:mm`，跨年 → `YYYY年M月D日 HH:mm`。`useCalendarDay` 是组件本地的日刻度（定时到下一个本地午夜），因此 memo 行在日历日变化时会重渲染，且不新增框架 hook。`MessageItem` 把标签放在复制之前（figma `388:20051`）。`ChatView` 通过 `assistantActionsSeqs` 推导轮次尾部的 seq，并不为轮次中间的内容传入 `time`；`AssistantMarkdown` 把该行放在分支之后（figma `43:32997`），且仅在 `streaming` 为 false、已知事件时间、且节点含非空 text 内容时渲染。纯 Think 节点、轮次中间的叙述与流式尾部省略该行。复制写入拼接后的 text 块。两种消息行都把自己的事件 `seq` 交给同一个 fork 回调；真实 mutation 契约由 [Web session fork 操作](2026-07-27-web-session-fork-actions.md)定义。剪贴板写入与时钟辅助函数放在 `message-chrome.ts`。组装面由 `apps/web/tests/message-actions.e2e.ts`（冷 seed 历史 + aria golden）钉住；aria 归一化把每种时钟形态折叠为 `{{clock}}`。
|
||||
|
||||
## 曾考虑的方案
|
||||
|
||||
@@ -20,12 +20,14 @@ Web 聊天的用户气泡已有复制／分支／编辑 IconActions，但没有
|
||||
|
||||
**给每个已定稿 assistant 节点（含纯 Think）都挂 IconActions。** 否决：没有 text 内容时复制没有可写内容，且在每一步／Think 下重复 chrome 会打乱流程；只有内容输出拥有该座位。
|
||||
|
||||
**给多步骤轮次中的每一条带 text 内容的 assistant 都挂 IconActions。** 否决：轮次中间的叙述（工具调用前的 text）不是已定稿答案；在每一步下重复复制／分支／时钟会打乱流程。只有该轮次中最后一条内容 assistant 拥有该座位。
|
||||
|
||||
**在具备 hover 能力的指针上用 hover 才揭示操作行。** 否决：行一旦存在就应保持可发现；用 opacity 隐藏容易漏看，且需要父级 hover 选择器重复挂载门控。
|
||||
|
||||
**把分支接到真实的会话 fork。** 本次否决：与已归档的[用户 IconActions 笔记](../../archived/feature/2026-07-27-user-message-icon-actions.md)同一理由——变更路径尚未规定；按钮只预留设计座位。
|
||||
**由 IconActions 决策同时定义 session fork 语义。** 否决：本笔记只拥有消息 chrome、时钟与挂载门控；边界选择、失败行为和切换语义属于独立的 [Web session fork 操作](2026-07-27-web-session-fork-actions.md)，避免展示组件成为 session mutation 的第二正家。
|
||||
|
||||
**通过 chat store 或 inject hook 发布日历日。** 否决：日刻度只是展示层本地状态，没有跨入口消费者；组件本地 timeout 符合「行为 hook 可拥有不订阅外部源的状态」这一客户端规则。
|
||||
|
||||
## 后果
|
||||
|
||||
已定稿的 assistant 内容回答在行挂载后立刻暴露复制与事件时钟；纯 Think 节点不带 chrome；分支仍为 stub。用户与 assistant 时钟共用同一套跨天／跨年加宽规则，并在午夜后无需消息变更即可刷新。逐消息分页仍是包 README 中的暂缓 footer 座位。包级测试钉住三种时钟形态、午夜加宽与 assistant 仅内容门控；Web e2e 场景钉住组装后的 IconActions chrome。
|
||||
每个轮次中最后一条已定稿的内容回答在行挂载后立刻暴露复制、分支与事件时钟；轮次中间的内容与纯 Think 节点不带 chrome。用户与 assistant 时钟共用同一套跨天／跨年加宽规则，并在午夜后无需消息变更即可刷新。逐消息分页仍是包 README 中的暂缓 footer 座位。包级测试钉住三种时钟形态、午夜加宽、assistant 仅内容门控、轮次尾部 seq 门控，以及 user/assistant 分支按钮各自传递的事件 `seq`；Web e2e 场景钉住组装后的 IconActions chrome。
|
||||
|
||||
@@ -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/2026-07-30-compaction-progress-visibility.md
|
||||
2026-07-30-compaction-progress-visibility.md: b4d95d4bc645924b96eab6a36ee7b8f36b76a2c6
|
||||
2026-07-30-compaction-progress-visibility.zh.md: e444fbdfbf1c865a5bb3b6675a5ff318c5cef9e7
|
||||
@@ -0,0 +1,49 @@
|
||||
# Agent Note: Live standalone compaction progress in the terminal
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-30-compaction-progress-visibility.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
A standalone manual compaction runs between turns while the agent remains idle. The TUI's turn-phase indicator therefore kept its plain `>` caret throughout the slow summary operation, and a failed attempt produced no transcript row because no replacement checkpoint landed. The liveness presentation needs to reuse the existing status indicator without introducing a second animated status location.
|
||||
|
||||
The durable log can retain an unmatched `compact/start` after a process dies. That orphan is useful recovery evidence, but it is not proof that work is running in the current process; replaying it as progress would leave resumed sessions with a permanent phantom indicator.
|
||||
|
||||
## Decision
|
||||
|
||||
The TUI treats the live standalone `compact/start { turn: null }` to matching `compact/end` bracket as the source of in-flight compaction presentation. A module-local `compacting` cell records the render-clock start and owns one animation timer. A fixed row above the prompt renders `Context being compacted <elapsed>` from that clock, the existing one-cell running status indicator renders `⊙` through the same fade and throb path as turn-phase glyphs, and the terminal progress bit remains active until the bracket closes.
|
||||
|
||||
`runningPhaseGlyph` owns the choice among turn-phase glyphs, `⊙`, and the idle caret. Turn-phase glyphs take precedence because numbered compaction brackets are enclosed by a running turn whose phase already lights the indicator. The fixed row is outside the transcript and owns neither a spinner nor another timer; it collapses when empty. The compaction cell does not change the idle editor border, hint, or steering badge, so prompts remain visibly accepted while standalone compaction reserves turn admission.
|
||||
|
||||
The cell is live-only. Mount and transcript replay never scan history for an unmatched start; only a `session/event` notification observed by the mounted TUI can open it. Turn-status transitions preserve the cell, while terminal teardown clears its timer and progress bit.
|
||||
|
||||
On `compact/end`, the TUI clears the cell before starting the ordinary glyph fade-out. An end carrying `error` adds `Compaction failed: <error>` as a warning. Successful completion remains represented by the landed replacement's transcript marker, and duration remains derivable from the matching durable start and end timestamps without another settled row.
|
||||
|
||||
This decision partially supersedes only the progress-related deferred clauses in the [terminal transcript decision](../bug-fix/2026-07-29-human-transcript-append-origin.md) and [browser transcript decision](../bug-fix/2026-07-30-web-transcript-log-ordered-projection.md): progress does not require marker scale or a replacement-rendering refactor. Both notes remain active and continue to own append-origin transcript projection and landed checkpoint markers. The [queued manual compaction decision](2026-07-30-queued-manual-compaction.md) remains the owner of bracket ordering, locking, and stale-orphan classification.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Add `progressLabel` to `CommandDefinition` and a second TUI status controller, as explored in PR #669.** Rejected because command metadata is not the compaction lifecycle authority, automatic compaction does not originate from a human command, and two status controllers can disagree about the same indicator.
|
||||
|
||||
**Add `compacting` to `TurnPhase`, as explored in PR #669.** Rejected because standalone compaction deliberately has no turn, while numbered compaction already has a visible running-turn phase.
|
||||
|
||||
**Add a fifth `TimingBucket`.** Rejected because timing buckets partition an open model step and feed its transcript footer. Standalone compaction has no step transition, and a new bucket would add a meaningless compaction column to every step total.
|
||||
|
||||
**Share one timer among running, fading, and compaction states.** Rejected because fade-out owns a self-terminating timer, while live compaction has an independent open/close lifetime. Sharing would restructure the reviewed animation state machine without removing an actual concurrent timer.
|
||||
|
||||
**Scan the log for an unmatched `compact/start`.** Rejected because a stale orphan from an earlier process lifecycle is expected durable history. Only the live notification proves current work.
|
||||
|
||||
**Use a generic command-running indicator.** Rejected for this behavior because the compaction bracket is the more precise source and also covers non-command paths. A future generic command indicator belongs to the `command/run` / `command/done` lifecycle.
|
||||
|
||||
**Add an animated compaction row to the transcript.** Rejected because it creates a second status animation point for the same lifecycle. The existing one-cell indicator owns liveness, while the landed marker and failure warning own settled transcript presentation.
|
||||
|
||||
**Print a success notice with duration.** Rejected because the landed replacement already supplies the completion marker. The bracket timestamps preserve duration for a future presentation that justifies another transcript row.
|
||||
|
||||
## Consequences
|
||||
|
||||
Manual compaction has a named elapsed-time display above the prompt while the agent is idle, failure has a direct warning, and a resumed orphan never looks active. The prompt indicator remains one terminal cell wide, while the row and indicator reuse the existing status animation, semantic palette, and terminal-progress lifecycle.
|
||||
|
||||
The live cell and timer are additional process-local state, cleared on both bracket close and TUI teardown. This is intentionally not reconstructible presentation state: durable history supplies the successful marker and timing facts, while current-process observation alone supplies liveness.
|
||||
|
||||
The package-level TUI tests pin standalone start, elapsed-time refresh, single-indicator presentation, numbered-start exclusion, fade-out, failure warning, idle-status preservation, running-turn precedence, orphaned resume, and timer disposal. The assembled `queued-manual-compact` terminal scenario observes `Context being compacted 1.0s` and `dsh ⊙` while the real summary boundary is held.
|
||||
@@ -0,0 +1,49 @@
|
||||
# Agent Note: 终端中的实时独立压缩进度
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-30-compaction-progress-visibility.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
独立手动压缩（compaction）在轮次之间运行，此时 agent（智能体）保持空闲。因此，在缓慢的摘要操作期间，TUI 的轮次阶段指示器始终显示普通的 `>` 光标；尝试失败时，由于没有替换检查点落地，也不会产生 transcript（文本记录）行。运行状态显示需要复用现有的状态指示器，不能再设置第二处带动画的状态显示。
|
||||
|
||||
进程终止后，持久日志中可能保留未匹配的 `compact/start`。该未匹配标记是有用的恢复证据，但无法证明当前进程中有工作正在运行；若将其回放为进度，恢复后的会话便会永久显示虚假的进度指示。
|
||||
|
||||
## 决策
|
||||
|
||||
TUI 将实时独立的 `compact/start { turn: null }` 与匹配的 `compact/end` 组成的标记对，作为显示进行中压缩状态的真源。模块局部的 `compacting` 状态记录渲染时钟的起始时间，并独占一个动画定时器。提示词上方的固定行根据该时钟渲染 `Context being compacted <elapsed>`，现有的单格运行状态指示器通过与轮次阶段字形相同的明暗渐变和呼吸律动路径渲染 `⊙`，终端进度标志位会保持活跃，直至标记对闭合。
|
||||
|
||||
`runningPhaseGlyph` 负责在轮次阶段字形、`⊙` 和空闲光标之间作出选择。轮次阶段字形的优先级更高，因为带编号的压缩标记对处于运行中的轮次内，该轮次的阶段已经激活指示器。该固定行位于 transcript 之外，不带 spinner，也不另设定时器；内容为空时会折叠。压缩状态不会改变空闲编辑器边框、提示或 steering（中途引导）徽标，因此，在独立压缩预留轮次准入期间，界面仍会明确显示提示词已获接纳。
|
||||
|
||||
该状态只反映实时事件。挂载和 transcript 回放绝不会扫描历史以查找未匹配的 start；只有已挂载的 TUI 观察到 `session/event` 通知，才能开启它。轮次状态转换会保留该状态，而终端清理会清除其定时器和进度标志位。
|
||||
|
||||
收到 `compact/end` 时，TUI 会先清除状态，再启动普通字形的淡出。携带 `error` 的结束事件会以警告形式添加 `Compaction failed: <error>`。成功完成仍由已落地替换项的 transcript 标记呈现；无需再添加已结算的行，也可从匹配且已持久记录的开始与结束时间戳推导持续时间。
|
||||
|
||||
本决策仅部分取代[终端 transcript 决策](../bug-fix/2026-07-29-human-transcript-append-origin.md)和[浏览器 transcript 决策](../bug-fix/2026-07-30-web-transcript-log-ordered-projection.md)中与进度相关的延期条款：进度显示不要求标记携带规模信息，也不要求重构替换项渲染。两份记录均保持活动状态，并继续负责基于追加来源的 transcript 投影和已落地检查点标记。[排队式手动压缩决策](2026-07-30-queued-manual-compaction.md)继续负责标记对顺序、锁定机制和陈旧未匹配标记分类。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
**按照 PR（Pull Request）#669 中探索的方案，为 `CommandDefinition` 添加 `progressLabel` 和第二个 TUI 状态控制器。** 不予采用：命令元数据并非压缩生命周期的权威依据，自动压缩并非由人工命令发起，两个状态控制器也可能对同一个指示器给出不一致状态。
|
||||
|
||||
**按照 PR #669 中探索的方案，将 `compacting` 添加到 `TurnPhase`。** 不予采用：独立压缩按设计没有轮次，而带编号的压缩已经具有可见的运行轮次阶段。
|
||||
|
||||
**添加第五个 `TimingBucket`。** 不予采用：计时分桶用于划分一个开放模型步骤内的时间，并为其 transcript 页脚提供数据。独立压缩没有步骤转换，新分桶会在每个步骤总计中加入一个没有意义的压缩列。
|
||||
|
||||
**让运行、淡出和压缩状态共享一个定时器。** 不予采用：淡出过程独占一个会自行终止的定时器，而实时压缩有独立的开启与闭合生命周期。共享定时器会重构已经评审的动画状态机，却不能消除实际存在的并发定时器。
|
||||
|
||||
**扫描日志，查找未匹配的 `compact/start`。** 不予采用：来自先前进程生命周期的陈旧未匹配标记是预期的持久历史。只有实时通知才能证明当前进程正在执行工作。
|
||||
|
||||
**使用通用的命令运行指示器。** 本行为不采用该方案，因为压缩标记对是更精确的真源，并且还覆盖非命令路径。未来若实现通用命令指示器，应归属于 `command/run` 和 `command/done` 生命周期。
|
||||
|
||||
**在 transcript 中添加动画压缩行。** 不予采用：这会为同一个生命周期设置第二处状态动画显示。现有的单格指示器负责显示运行状态，而已落地标记和失败警告负责已结算的 transcript 呈现。
|
||||
|
||||
**打印包含持续时间的成功通知。** 不予采用：已落地的替换项已经提供完成标记。标记对的时间戳保留了持续时间，可供未来能够证明新增 transcript 行合理的展示方式使用。
|
||||
|
||||
## 后果
|
||||
|
||||
手动压缩在 agent 空闲时会在提示词上方显示带名称的已用时间，失败会直接产生警告，恢复会话时的陈旧未匹配标记绝不会显示为活动状态。提示符指示器保持一个终端字符单元宽，状态行和指示器则复用现有的状态动画、语义调色板和终端进度生命周期。
|
||||
|
||||
实时状态及其定时器是额外的进程局部状态，在标记对闭合和 TUI 清理这两种情况下都会清除。按设计，这种显示状态不可重建：持久历史提供成功标记与计时事实，只有当前进程的观察才能提供运行中状态。
|
||||
|
||||
包（package）级 TUI 测试固定了以下行为：独立开始事件、已用时间刷新、单指示器呈现、排除带编号的开始事件、淡出、失败警告、保留空闲状态、运行轮次优先级、存在未匹配标记时的恢复，以及定时器释放。组装后的 `queued-manual-compact` 终端场景会在真实摘要边界保持开放期间观察到 `Context being compacted 1.0s` 和 `dsh ⊙`。
|
||||
@@ -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/2026-07-30-config-only-repository-plugins.md
|
||||
2026-07-30-config-only-repository-plugins.md: 2057125fc78596dd4e5eb153f77b828f83d9ceff
|
||||
2026-07-30-config-only-repository-plugins.zh.md: 6e741b46be716e21a11c2f508fb5e6d0505c76d0
|
||||
@@ -0,0 +1,50 @@
|
||||
# Agent Note: Config-only repository Plugins for standalone dsh
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-30-config-only-repository-plugins.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
A standalone `dsh` user has no developer-owned SDK project whose `package.json`, lockfile, and `cordis.yml` can carry an external Plugin dependency. Requiring an install command or another state file would make “use this repository” a multi-step workflow, while loading arbitrary repository code would bypass the restricted [static repository Plugin format](../architecture/2026-07-30-static-repository-plugin-format.md). Long-running TUI and Web processes also need a failed edit to preserve their usable Plugin generation and tell observers why the candidate was rejected.
|
||||
|
||||
## Decision
|
||||
|
||||
The shipped TUI and Web/headless `cordis.yml` trees contain an empty `repository-plugins` entry. A user changes only `$DSH_HOME/config.yaml`, replacing that entry's config with a `repositories` list. Each item uses `github:owner/repository#<ref>` plus an optional `&path:/.../.dsh-plugin`; omission selects `/.dsh-plugin`. An explicit ref is mandatory, paths are absolute within the repository and end in `.dsh-plugin`, and duplicate normalized specifiers reject before installation. There is no marketplace, discovery index, HTTPS URL vocabulary, or implicit latest generation.
|
||||
|
||||
`@deepseek-ai/dsh-repository-plugin` validates and normalizes each source, then resolves it through the generic vendored [`RepositoryCache`](../architecture/2026-07-30-package-manager-native-repository-cache.md). The default cache is `$DSH_HOME/cache/repository-plugins`; `cacheDir` is the explicit deployment override. Bundled pnpm selects the configured repository subpackage, runs its ordinary lifecycle including `prepare`, and atomically publishes the exact specifier. The DSH host imports only the generated `dsh-plugin.mjs` wrapper and mounts it as a child fiber, so skills and MCP retain the owners, failure contracts, and teardown defined by the format package.
|
||||
|
||||
## Live update and failure
|
||||
|
||||
`dsh-app-boot` mounts the root Include through one helper that retains its exact Loader `Entry`. The TUI and Web register `$DSH_HOME/config.yaml` through Cordis HMR; headless reads the same file at startup without retaining a watcher. A watcher update rebuilds the Include patch list as immutable app-owned patches followed by the newly parsed personal patches, so Web-generated port, session-root, trust, and frontend values survive every personal edit unless a later personal patch deliberately replaces that row.
|
||||
|
||||
Cordis serializes and coalesces exact-path changes. Include and Loader reconcile a candidate transactionally: success commits the new source list, while fetch, preparation, wrapper import, format, or child-Plugin failure rejects the candidate and retains or restores the last good tree. HMR normalizes the caught value to `Error`, logs it, and broadcasts the parallel `hmr/config-update-failed(filename, error)` event; observer failures cannot break refresh processing. MCP transport connection failure remains the existing MCP client's contained successful-Plugin/no-tools result and therefore is not reclassified as a config-update failure.
|
||||
|
||||
An identical specifier permanently reuses its cache generation. HMR watches configuration, not cached repository code; the user changes the ref, path, or source list to select another generation.
|
||||
|
||||
## Trust boundary
|
||||
|
||||
Configuring a repository authorizes package-manager lifecycle code from that repository and its dependencies to run with the user's filesystem authority. The pnpm child removes ambient environment variables whose names contain `KEY`, `PASSWORD`, `SECRET`, or `TOKEN`, but this is credential-exposure reduction rather than a sandbox. The fixed runtime wrapper prevents repository-authored Cordis entry points from becoming part of the supported Plugin format; it does not make package preparation untrusted-safe.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
**Require an SDK project dependency.** Rejected for the standalone app path because there is no project manifest to edit. Developer-owned SDK projects keep their native package-manager workflow as a separate capability.
|
||||
|
||||
**Add a `dsh plugin install` command and installation database.** Rejected because the personal Loader overlay already owns machine-local composition. A second mutation interface and durable registry would duplicate config identity and rollback.
|
||||
|
||||
**Resolve repositories directly in the DSH package.** Rejected because Git transport, GitHub subpackage selection, lifecycle execution, and content storage belong to pnpm and the generic Loader cache, not a DSH-specific adapter.
|
||||
|
||||
**Watch cache contents or refresh the same ref automatically.** Rejected because one config value must identify one immutable prepared generation. Background remote resolution would change executable code without a config diff and make rollback depend on mutable remote state.
|
||||
|
||||
**Broadcast an `unknown` failure payload.** Rejected at the HMR boundary. JavaScript may throw any value internally, but the public event always receives a normalized `Error`, giving observers one stable contract while retaining the original value as its cause when needed.
|
||||
|
||||
## Consequences
|
||||
|
||||
- A repository that adds `.dsh-plugin/package.json` can reach standalone users through one personal-config edit without changing its existing skills or `.mcp.json` layout.
|
||||
- Long-running apps can add, replace, or remove configured generations without restart; rejected candidates retain the last good runtime and produce one generic Cordis event.
|
||||
- First use may require Git/network access and preparation time. Later starts reuse the exact prepared cache; old generations consume disk until a separate cache-management policy exists.
|
||||
- Only skills and common MCP definitions are supported. Hooks, commands, agents, apps, arbitrary Cordis code, compatibility shims, OAuth-bearing MCP definitions, and marketplaces remain intentionally absent.
|
||||
|
||||
## Testing
|
||||
|
||||
Repository-package tests pin source normalization, default and nested `.dsh-plugin` paths, cache-root resolution, duplicate rejection, prepared-wrapper loading, and disposal. App-boot tests drive exact-path add, two failure classes, recovery, removal, failure events, and generated-patch preservation through the real HMR/Include/Loader path. A keyless PTY smoke boots the shipped `dsh` composition from personal config alone and invokes a skill from a seeded immutable cache generation.
|
||||
@@ -0,0 +1,50 @@
|
||||
# Agent Note: 仅凭配置为独立 dsh 接入仓库插件
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-30-config-only-repository-plugins.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
独立 `dsh` 用户没有开发者自有的 SDK 项目，无法由其 `package.json`、lockfile 和 `cordis.yml` 承载外部插件依赖。若要求运行安装命令或维护另一份状态文件，「使用这个仓库」就会变成多步骤流程；若加载任意仓库代码，又会绕过受限的[静态仓库插件格式](../architecture/2026-07-30-static-repository-plugin-format.md)。长时间运行的 TUI 和 Web 进程还必须在编辑失败时保留仍可使用的插件版本，并向观察者说明候选配置被拒绝的原因。
|
||||
|
||||
## 决策
|
||||
|
||||
已交付的 TUI 和 Web／无头 `cordis.yml` 配置树包含一个空的 `repository-plugins` 配置项。用户只需修改 `$DSH_HOME/config.yaml`，用 `repositories` 列表替换该配置项的配置。每一项采用 `github:owner/repository#<ref>`，并可追加 `&path:/.../.dsh-plugin`；省略时选择 `/.dsh-plugin`。必须显式指定 ref；路径是仓库内的绝对路径，并以 `.dsh-plugin` 结尾；重复的规范化说明符在安装前即被拒绝。不提供插件市场、发现索引、HTTPS URL 词汇或隐式的最新版本。
|
||||
|
||||
`@deepseek-ai/dsh-repository-plugin` 校验并规范化每个源，再通过 vendor 中的通用 [`RepositoryCache`](../architecture/2026-07-30-package-manager-native-repository-cache.md) 解析。默认缓存位于 `$DSH_HOME/cache/repository-plugins`；`cacheDir` 是显式的部署覆盖项。随应用提供的 pnpm 选择配置的仓库子包（package），运行包括 `prepare` 在内的普通生命周期，并原子发布该精确说明符。DSH 宿主只导入生成的 `dsh-plugin.mjs` 包装模块并将其挂载为子 fiber，因此 skill（技能）与 MCP 仍沿用格式包定义的所有者、失败契约和清理行为。
|
||||
|
||||
## 实时更新与失败
|
||||
|
||||
`dsh-app-boot` 通过一个辅助函数挂载根 Include，并保留其确切的 Loader `Entry`。TUI 和 Web 通过 Cordis HMR（热模块替换）注册 `$DSH_HOME/config.yaml`；无头界面在启动时读取同一文件，但不保留监视器。监视器更新会重新构建 Include 补丁列表，先放置不可变的应用自有补丁，再放置新解析的个人补丁。因此，Web 生成的端口、会话根目录、信任和前端值会在每次个人编辑后保留，除非后续个人补丁有意替换相应配置项。
|
||||
|
||||
Cordis 会串行处理并合并该确切路径上的变更。Include 与 Loader 以事务方式协调候选配置：成功时提交新源列表；拉取、准备、包装模块导入、格式或子插件失败时拒绝候选配置，并保留或恢复最后一个可用树。HMR 会把捕获的值规范化为 `Error`，记录错误，并广播并行的 `hmr/config-update-failed(filename, error)` 事件；观察者失败不会中断刷新处理。MCP 传输连接失败仍沿用现有 MCP 客户端所收束的「插件成功加载但无工具」结果，因此不会被重新分类为配置更新失败。
|
||||
|
||||
相同说明符会永久复用同一个缓存版本。HMR 监视配置，而非已缓存的仓库代码；用户必须改变 ref、路径或源列表，才能选择另一个版本。
|
||||
|
||||
## 信任边界
|
||||
|
||||
配置仓库即授权该仓库及其依赖中的包管理器生命周期代码以用户的文件系统权限运行。pnpm 子进程会移除名称中含有 `KEY`、`PASSWORD`、`SECRET` 或 `TOKEN` 的环境变量，但这只会减少凭据暴露，并非沙箱。固定的运行时包装模块会阻止仓库作者提供的 Cordis 入口成为受支持插件格式的一部分；它无法让包准备过程安全执行不受信任的代码。
|
||||
|
||||
## 考虑过的替代方案
|
||||
|
||||
**要求声明 SDK 项目依赖。** 独立应用路径没有可编辑的项目 manifest（元数据清单），因此否决。开发者自有的 SDK 项目仍可使用原生包管理器工作流，这是一项独立能力。
|
||||
|
||||
**新增 `dsh plugin install` 命令和安装数据库。** 否决，因为个人 Loader 覆盖层已经负责机器本地组合。第二个变更接口和持久注册表会重复配置身份与回滚机制。
|
||||
|
||||
**由 DSH 包直接解析仓库。** 否决，因为 Git 传输、GitHub 子包选择、生命周期执行和内容存储属于 pnpm 与通用 Loader 缓存，而非 DSH 专用适配器。
|
||||
|
||||
**监视缓存内容，或自动刷新相同 ref。** 否决，因为一个配置值必须标识一个不可变的已准备版本。后台远端解析会在没有配置差异的情况下改变可执行代码，并使回滚依赖可变的远端状态。
|
||||
|
||||
**广播 `unknown` 失败载荷。** 在 HMR 边界否决。JavaScript 内部可以抛出任意值，但公开事件始终接收规范化的 `Error`，从而为观察者提供稳定契约，并在需要时把原始值保留为错误原因。
|
||||
|
||||
## 后果
|
||||
|
||||
- 添加 `.dsh-plugin/package.json` 的仓库只需一次个人配置编辑即可供独立用户使用，无需改变现有 skill 或 `.mcp.json` 布局。
|
||||
- 长时间运行的应用无需重启即可新增、替换或移除已配置版本；被拒绝的候选配置会保留最后一个可用运行时，并产生一个通用 Cordis 事件。
|
||||
- 首次使用可能需要 Git／网络访问和准备时间。后续启动会复用这份精确的已准备缓存；在另行制定缓存管理政策之前，旧版本会持续占用磁盘空间。
|
||||
- 仅支持 skill 和通用 MCP 定义。钩子、命令、agent（智能体）、应用、任意 Cordis 代码、兼容 shim、带 OAuth 的 MCP 定义和插件市场均有意不提供。
|
||||
|
||||
## 测试
|
||||
|
||||
仓库包测试固定源规范化、默认和嵌套 `.dsh-plugin` 路径、缓存根解析、重复项拒绝、已准备包装模块加载及资源释放。App-boot 测试通过真实 HMR／Include／Loader 路径驱动确切路径的新增、两类失败、恢复、移除、失败事件及生成补丁保留。一个无密钥 PTY 冒烟测试仅通过个人配置启动已交付的 `dsh` 组合，并从预置的不可变缓存版本中调用一个 skill。
|
||||
@@ -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/2026-07-30-continuable-subagent-report-tool.md
|
||||
2026-07-30-continuable-subagent-report-tool.md: 8324f1fa08f7dace6153712575e7e70a07ee9344
|
||||
2026-07-30-continuable-subagent-report-tool.zh.md: e7599c1d85328e83c7773718101b59e763a1e37f
|
||||
@@ -0,0 +1,118 @@
|
||||
# Agent Note: Continuable subagent report tool
|
||||
|
||||
Status: implemented
|
||||
|
||||
English | [中文](2026-07-30-continuable-subagent-report-tool.zh.md)
|
||||
|
||||
## Problem
|
||||
|
||||
Continuable in-process subagents can receive later parent messages, retain descendants, settle, and cold-resume, but the base lifecycle gives them no way to send selected content back to their direct parent. Their complete output already remains reconstructable from the durable child Session, so the missing capability is explicit delivery rather than result storage.
|
||||
|
||||
Treating every final assistant message as an implicit result would conflate turn completion with reporting. A long-lived child may have nothing useful to report in one turn, may report progress several times in another, and must remain available after reporting. Recipient authority, quiet versus waking delivery, acknowledgement, durability, and retry behavior therefore need one explicit contract.
|
||||
|
||||
## Decision
|
||||
|
||||
Add the independently installed `@deepseek-ai/dsh-tool-subagent-report` package. It contributes an ordinary model-facing `report` tool to each continuable in-process child Activation. A child may call it zero or multiple times in a turn. Success neither concludes the turn, settles the Activation, nor prevents later parent follow-ups, and finishing a turn never reports automatically.
|
||||
|
||||
The feature is a collaboration control, not a result-bearing execution wrapper. It adds no Task, `SubagentRun`, result promise, Activation state, delivery queue, or replay path.
|
||||
|
||||
### Model-facing contract
|
||||
|
||||
`report` accepts exactly `{ output: string }` and returns exactly `{ messageId: string }`. It accepts no child id, recipient id, or delivery mode. `exec.agent` binds the tool call to the reporting child, the service derives the sole recipient from durable `parentSession`, and deployment config owns scheduling.
|
||||
|
||||
`messageId` is the stable `MessageId` of the user-role message accepted by the parent. It is not an `InboxItemId`: quiet delivery creates no inbox occurrence, while waking delivery creates one occurrence for the same stable message. It is also not a read receipt, parent-log acknowledgement, turn-completion receipt, or persistence flush.
|
||||
|
||||
The description states that reporting is explicit, repeatable, direct-parent-only, and non-terminal. It warns that a failed tool result may still follow an accepted send because a later `tools/post-execute` failure can replace the result. Without an idempotency key, stronger wording would encourage duplicate retries after ambiguous failure.
|
||||
|
||||
The tool uses generic rendering with no locations. Its acknowledgement includes `messageId`. Scope-local registration keeps presentation and execution aligned: roots, one-shot children, remote providers, sibling scopes, and agentless execution neither see nor execute `report`. It installs after the child's global `toolFilter`, so a delegation allow-list cannot accidentally remove the structural return channel; deployments that require no return channel omit the package.
|
||||
|
||||
### Service authority
|
||||
|
||||
The subagent seam exposes `ctx.subagents.reportFrom(child, content, { delivery, signal }): Promise<MessageId>`. The exact live child Agent is the sender credential. The continuation manager accepts only an Activation whose `handle.agent === child`, derives its direct parent from the child's durable header, and requires that id to resolve to a live parent Agent in the final synchronous authorization-and-send span. The API accepts no caller-selected recipient, ancestor, or provenance.
|
||||
|
||||
Roots, one-shot children, forged objects, stale Agents, and same-id replacements fail with `UNAUTHORIZED`. A closing child Activation fails with `ACTIVATION_CLOSING`; manager drain and pre-acceptance cancellation retain their existing lifecycle errors. A missing or send-rejecting direct parent fails with `PARENT_UNAVAILABLE` and `direct parent is not live; report was not delivered`. Failure returns no id, cold-resumes no parent, writes no offline mailbox, and mutates no absent-parent Session.
|
||||
|
||||
Nested reporting crosses exactly one edge. A grandchild reports to its direct child parent, never to the top-level coordinator. That intermediate child may explicitly report a derived update later.
|
||||
|
||||
### Delivery policy
|
||||
|
||||
The package validates `reportDelivery: 'quiet' | 'wakeup'`; the default is `quiet`.
|
||||
|
||||
Quiet delivery calls `parent.inject()`. It adds model-visible context without starting a parent model request: an idle parent appends before the call returns, while an admitting or running parent stages the report for the next safe log position. It creates no inbox occurrence and therefore no synthetic continuation-manager acceptance record.
|
||||
|
||||
Waking delivery calls `parent.followup()`. It creates one ordinary FIFO parent turn, wakes a parked parent driver, and never steers an open turn. When that parent is itself a continuable Activation, the send uses the manager's existing admission accounting so the parent cannot settle between synchronous enqueue and the admission microtask.
|
||||
|
||||
Both modes frame one user-role message as `Background subagent <child-id> reported:` followed by the exact `output`. Durable provenance is `{ kind: 'subagent-report', senderSessionId: child.id }`. Normal Agent ordering governs concurrent sends; the subagent layer creates no second queue.
|
||||
|
||||
### Acknowledgement and recovery
|
||||
|
||||
Success means the exact live parent synchronously accepted the message. An idle quiet injection is already appended at that boundary, while staged quiet context becomes reconstructable only when it reaches its normal log boundary. Waking delivery has an inbox occurrence whose id remains separate from the returned stable message id.
|
||||
|
||||
The first version provides no durable mailbox, idempotency key, delivery receipt, retry protocol, or exactly-once claim. A process failure can leave the caller uncertain, and retry after an unknown outcome may duplicate a report. The durable child transcript remains the recovery source when the parent is unavailable.
|
||||
|
||||
### Composition and lifecycle
|
||||
|
||||
The subagent seam adds `registerContinuableSetup(contribution): () => void`, backed by `SubagentActivationSetupRegistry`. Each synchronous contribution receives the unpublished child context and returns the disposer for its installation. The continuation manager first applies base child composition, then current contributions in registration order through the same setup closure used for fresh creation and cold resume.
|
||||
|
||||
The registry owns registration, per-child installation records, setup rollback, child-scope cleanup, and immediate revocation. Applying a batch returns the Agent setup commit that revalidates provisioning after every setup await and immediately before Agent publication. A throwing or concurrently revoked contribution therefore rejects before either Agent or Session publication and rolls back the batch. New registrations affect a resident child only on its next Activation; removing a registration first closes it to new setup and then revokes every provisioning or resident installation immediately. Registration disposal and child-context disposal are idempotent and attempt every release before aggregating failures.
|
||||
|
||||
This seam keeps the continuation manager unaware of tool names. The report package installs only `report`; `@deepseek-ai/dsh-tool-subagent-control` independently installs parent-side `send_message` and `list_agents`. A deployment can install either direction, both, or neither. Providers remain data-only, durable descriptors do not snapshot report availability or delivery mode, and cold resume uses the deployment's current contributions and policy.
|
||||
|
||||
### Snapshot coverage
|
||||
|
||||
The ACP snapshot harness adds `waitForSubagentTurnEnd`, selecting the Nth harvested child by the same order as `session.N.jsonl`. It waits for a closed child turn containing a request header so a continuable child's earlier descriptor-seed turn cannot satisfy the boundary. This lets the assembled quiet-mode scenario wait for the child-side report without inventing a parent-visible signal.
|
||||
|
||||
The authored snapshot starts a continuable child, executes the real scope-local `report` tool, confirms that the idle parent is not woken, and then submits a later parent prompt that consumes the framed report. It declares child schema pin `1`, so the otherwise non-global `report` schema is checked against `tool-schemas.1.expected.json` while the root keeps the default schema pin. The generated tool catalog separately mints a child scope to include the same scope-local schema.
|
||||
|
||||
## Alternatives considered
|
||||
|
||||
### Automatically deliver every final answer
|
||||
|
||||
Automatic delivery cannot represent zero reports, progress reports, or several selected updates. It also couples reporting to settlement and can duplicate content already reported explicitly.
|
||||
|
||||
### Always wake the parent
|
||||
|
||||
Waking on every report creates unsolicited turns and can cascade through nested subagents. Quiet delivery matches background coordination better as the default, while deployments that require immediate action can select wakeup.
|
||||
|
||||
### Let the child choose the delivery mode
|
||||
|
||||
Giving the model a mode argument grants it control over scheduler pressure and makes behavior deployment-dependent. The child chooses content and timing; deployment config chooses whether that content starts another Agent turn.
|
||||
|
||||
### Register a global tool
|
||||
|
||||
A global `report` would advertise an unusable capability to roots, one-shot children, remote children, and agentless callers. Execution-time rejection would make schema visibility disagree with authority.
|
||||
|
||||
### Combine both directions in the control package
|
||||
|
||||
`send_message` and `report` have different audiences, scopes, configuration, and lifecycle. Independent packages let deployments grant either direction without implying the other.
|
||||
|
||||
### Persist an offline parent mailbox
|
||||
|
||||
Mutating or cold-resuming an absent parent requires a new durable addressing, authorization, conflict, acknowledgement, and replay protocol. Requiring a live direct parent keeps the first version on the existing Agent send path.
|
||||
|
||||
### Reintroduce a Task or result promise
|
||||
|
||||
A result-bearing wrapper makes one report or one turn appear terminal and recreates the lifetime mismatch that continuable Activations removed. Explicit repeatable sends need no intermediate execution object.
|
||||
|
||||
### Validate setup after Agent creation
|
||||
|
||||
A post-creation revocation check can reject the Activation only after the Agent and Session have been published. Disposing the returned handle removes the live objects but cannot delete persistence through the current seam, leaving a resumable child that the continuation manager said was never established. Returning an `AgentSetupCommit` instead lets the Agent factory perform the same mutable-state check synchronously at its publication boundary.
|
||||
|
||||
## Consequences
|
||||
|
||||
- A continuable in-process child exposes exactly one scope-local `report` schema only while the report package's contribution is installed; unrelated Agents never expose it.
|
||||
- The tool returns the parent message's stable `MessageId`. Quiet delivery has no `InboxItemId`; waking delivery has a separate inbox occurrence.
|
||||
- Only the exact resident child may report, and only to the exact live direct parent derived from durable lineage. The service has no recipient parameter or offline fallback.
|
||||
- Quiet delivery is the validated default and never starts a parent request. Wakeup creates exactly one later FIFO turn and never steers an open turn.
|
||||
- Child cancellation or disposal after parent acceptance does not retract the report. Before acceptance, child disposal, drain, parent loss, or caller cancellation rejects the operation.
|
||||
- Fresh and resumed Activations compose current setup contributions before publication. Grants wait for the next Activation; revocation is immediate for resident children.
|
||||
- Unit coverage pins visibility, allow-list behavior, both delivery modes, stable identity and provenance, nested routing, invalid senders, absent parents, cancellation, drain, revocation races, and the absence of Tasks or implicit final reporting.
|
||||
- The keyless assembled snapshot proves the real child tool, quiet non-wakeup behavior, durable parent framing, and later parent consumption.
|
||||
|
||||
### Accepted risks
|
||||
|
||||
The acceptance boundary is weaker than durable end-to-end delivery. A crash can leave the result ambiguous, and retries may duplicate reports.
|
||||
|
||||
Wakeup mode can amplify model work when nested children report frequently. Deployment ownership and a quiet default limit but do not remove that risk.
|
||||
|
||||
Registry presence is the parent liveness signal. A host-owned parent whose `AgentHandle.dispose()` has started but has not yet unwound its scope can still accept and append a report that it will not act on in this process. Closing that gap requires an Agent-level disposal-start signal rather than subagent-layer inference.
|
||||
@@ -0,0 +1,118 @@
|
||||
# Agent Note（agent 决策记录）：可继续 subagent 报告工具
|
||||
|
||||
Status: implemented
|
||||
|
||||
[English](2026-07-30-continuable-subagent-report-tool.md) | 中文
|
||||
|
||||
## 问题
|
||||
|
||||
可继续的进程内 subagent 能够接收 parent 后续发来的消息、保留后代、结算并冷恢复，但基础生命周期无法让它们将选中内容发送给直接 parent。child 的完整输出已可从持久化会话中重建，因此缺失的能力是显式投递，而非结果存储。
|
||||
|
||||
如果将每条 assistant 最终消息都视为隐式结果，就会混淆轮次完成与报告。长期运行的 child 可能在某个轮次中无内容可报告，也可能在另一个轮次多次报告进展，而且报告后必须仍可继续工作。因此，接收方权限、静默投递与唤醒投递、确认、持久性和重试行为都需要一份显式契约。
|
||||
|
||||
## 决策
|
||||
|
||||
新增可独立安装的 `@deepseek-ai/dsh-tool-subagent-report` 包（package）。它会向每个可继续进程内 child Activation 贡献一个普通的面向模型 `report` 工具。child 在一个轮次中可调用零次或多次。调用成功既不会结束该轮次或结算 Activation，也不会阻止 parent 之后继续 follow-up；完成轮次也绝不会自动报告。
|
||||
|
||||
该功能是协作控制，不是承载结果的执行包装层。它不新增 Task、`SubagentRun`、结果 promise、Activation 状态、投递队列或回放路径。
|
||||
|
||||
### 面向模型的契约
|
||||
|
||||
`report` 只接受 `{ output: string }`，也只返回 `{ messageId: string }`。它不接受 child id、接收方 id 或投递模式。`exec.agent` 将工具调用绑定到发送报告的 child；服务从持久化 `parentSession` 中推导唯一接收方，调度则由部署配置决定。
|
||||
|
||||
`messageId` 是 parent 接受的用户角色消息所对应的稳定 `MessageId`。它不是 `InboxItemId`：静默投递不创建 inbox 条目实例，唤醒投递则会为同一条稳定消息创建一个条目实例。它也不是已读回执、parent 日志确认、轮次完成回执或持久化 flush。
|
||||
|
||||
工具描述会明确报告操作是显式、可重复、仅限直接 parent 且不会结束轮次的。它还会警告：发送被接受后，后续 `tools/post-execute` 失败可能替换工具结果，因此工具结果失败时内容仍可能已经送达。没有幂等键时，更强的表述会诱导调用方在结果不明确的失败后重复重试。
|
||||
|
||||
该工具使用不带 location 的通用渲染，其确认中包含 `messageId`。作用域局部注册使呈现与执行保持一致：root、one-shot child、远程提供方、同级作用域和无 agent 执行既不能看到，也不能执行 `report`。它会在 child 的全局 `toolFilter` 之后安装，因此委派 allow-list 不会意外移除这条结构性返回通道；不需要返回通道的部署不安装该包。
|
||||
|
||||
### 服务权限
|
||||
|
||||
subagent seam 暴露 `ctx.subagents.reportFrom(child, content, { delivery, signal }): Promise<MessageId>`。确切的在线 child Agent 是发送方凭据。继续执行管理器只接受 `handle.agent === child` 的 Activation，从 child 的持久化 header 中推导其直接 parent，并要求该 id 在最终的同步授权与发送区间解析为一个在线 parent Agent。该 API 不接受由调用方选择的接收方、祖先或来源信息。
|
||||
|
||||
root、one-shot child、伪造对象、陈旧 Agent 和同 id 替换对象都以 `UNAUTHORIZED` 失败。正在关闭的 child Activation 以 `ACTIVATION_CLOSING` 失败；管理器 drain 和接受前取消保留既有的生命周期错误。直接 parent 不存在或拒绝接受时，以 `PARENT_UNAVAILABLE` 和 `direct parent is not live; report was not delivered` 失败。失败不返回 id，不冷恢复 parent，不写入离线邮箱，也不会修改缺失 parent 的会话。
|
||||
|
||||
嵌套报告恰好跨越一条边。grandchild 会向其直接 child parent 报告，绝不会直接向顶层 coordinator 报告。中间 child 可以稍后显式报告自己归纳的更新。
|
||||
|
||||
### 投递策略
|
||||
|
||||
该包会校验 `reportDelivery: 'quiet' | 'wakeup'`，默认值为 `quiet`。
|
||||
|
||||
静默投递调用 `parent.inject()`。它会添加模型可见上下文，但不启动 parent 模型请求：若 parent 空闲，则在调用返回前追加消息；若 parent 正在准入或运行，则暂存报告，留到下一个安全日志位置。该模式不创建 inbox 条目实例，因此也不会产生虚构的继续执行管理器接受记录。
|
||||
|
||||
唤醒投递调用 `parent.followup()`。它会创建一个普通的 FIFO parent 轮次，唤醒已驻留的 parent driver，且绝不 steering 已开始的轮次。当该 parent 本身也是可继续 Activation 时，发送会使用管理器现有的准入计数，防止 parent 在同步入队与准入微任务之间结算。
|
||||
|
||||
两种模式都会将一条用户角色消息封装为 `Background subagent <child-id> reported:`，后面跟随完全原样的 `output`。持久化来源信息为 `{ kind: 'subagent-report', senderSessionId: child.id }`。并发发送的顺序由 Agent 的常规规则决定；subagent 层不会创建第二条队列。
|
||||
|
||||
### 确认与恢复
|
||||
|
||||
成功表示确切的在线 parent 已同步接受该消息。空闲 parent 在接受静默注入时已经完成追加，而暂存的静默上下文只有到达正常日志边界后才可重建。唤醒投递包含一个 inbox 条目实例，其 id 与返回的稳定消息 id 保持分离。
|
||||
|
||||
首个版本不提供持久化邮箱、幂等键、投递回执、重试协议或恰好一次保证。进程故障可能让调用方无法确定结果，在结果未知时重试则可能重复报告。parent 不可用时，持久化 child transcript 仍是恢复来源。
|
||||
|
||||
### 组合与生命周期
|
||||
|
||||
subagent seam 新增 `registerContinuableSetup(contribution): () => void`，由 `SubagentActivationSetupRegistry` 支撑。每个同步贡献都会接收尚未发布的 child 上下文，并返回其安装的 disposer。继续执行管理器首先应用基础 child 组合，然后通过同一个用于首次创建与冷恢复的设置闭包，按注册顺序应用当前贡献。
|
||||
|
||||
注册表负责注册、每个 child 的安装记录、设置回滚、child 作用域清理和立即撤销。应用一个批次会返回 Agent setup 提交对象，用于在所有 setup 的 await 均结算后、紧邻 Agent 发布前重新校验配置状态。因此，某项贡献抛出异常或被并发撤销时，会在 Agent 与 Session 发布前拒绝操作并回滚该批次。新注册项只会在驻留 child 的下一个 Activation 生效；移除注册项时，会先将它对新设置关闭，再立即撤销为正在配置或驻留的每个 child 安装的实例。注册 dispose 与 child 上下文 dispose 都是幂等的，两者都会先尝试每项释放，再聚合失败。
|
||||
|
||||
该 seam 使继续执行管理器无需知道工具名。report 包只安装 `report`；`@deepseek-ai/dsh-tool-subagent-control` 则独立安装 parent 侧的 `send_message` 和 `list_agents`。部署时可安装任一方向、同时安装两者或两者均不安装。提供方仍只负责数据，持久化描述符不会对 report 可用性或投递模式建立快照，冷恢复则使用部署当前的贡献与策略。
|
||||
|
||||
### 快照覆盖
|
||||
|
||||
ACP（Agent Client Protocol）快照 harness 新增 `waitForSubagentTurnEnd`，按与 `session.N.jsonl` 相同的顺序选择第 N 个已收集 child。它会等待一个包含请求 header 的已闭合 child 轮次，以防可继续 child 早期播种描述符的轮次错误满足该边界。这样，整体组装的静默模式场景无需伪造 parent 可见信号，就能等待 child 侧报告。
|
||||
|
||||
手写快照会启动一个可继续 child，执行真实的作用域局部 `report` 工具，确认空闲 parent 未被唤醒，然后提交一条后续 parent 提示词，使其消费封装后的报告。它声明 child schema pin `1`，因此本不属于全局的 `report` schema 会与 `tool-schemas.1.expected.json` 比对，root 则继续使用默认 schema pin。生成的工具目录会另外铸造一个 child 作用域，以收录同一个作用域局部 schema。
|
||||
|
||||
## 曾考虑的替代方案
|
||||
|
||||
### 自动投递每个最终回答
|
||||
|
||||
自动投递无法表示零次报告、进展报告或多次精选更新。它还会将报告与结算耦合，并可能重复投递已显式报告的内容。
|
||||
|
||||
### 始终唤醒 parent
|
||||
|
||||
每次报告都唤醒 parent 会产生未经请求的轮次，还可能沿嵌套 subagent 级联扩散。静默投递更适合作为后台协调的默认值，而需要立即处理的部署可选择 wakeup。
|
||||
|
||||
### 允许 child 选择投递模式
|
||||
|
||||
向模型提供 mode 参数会赋予其控制调度器压力的能力，并使行为依赖部署。child 只决定内容和时机；该内容是否启动另一个 Agent 轮次，由部署配置决定。
|
||||
|
||||
### 注册全局工具
|
||||
|
||||
全局 `report` 会向 root、one-shot child、远程 child 和无 agent 调用方公布一项无法使用的能力。到执行时才拒绝，会使 schema 可见性与权限不一致。
|
||||
|
||||
### 将两个方向合并到 control 包
|
||||
|
||||
`send_message` 与 `report` 的受众、作用域、配置和生命周期各不相同。独立的包可让部署授予任意一个方向，而不暗示也授予另一个方向。
|
||||
|
||||
### 持久化离线 parent 邮箱
|
||||
|
||||
修改或冷恢复不在线的 parent，需要一套新的持久化寻址、权限、冲突、确认和回放协议。要求直接 parent 在线，可以让首个版本继续使用现有 Agent 发送路径。
|
||||
|
||||
### 重新引入 Task 或结果 promise
|
||||
|
||||
承载结果的包装层会让一次报告或一个轮次看似具有终止性，并重新引入可继续 Activation 已经移除的生命周期不匹配。显式、可重复的发送无需中间执行对象。
|
||||
|
||||
### 在 Agent 创建后校验 setup
|
||||
|
||||
创建完成后的撤销检查只能在 Agent 与 Session 均已发布后拒绝 Activation。对返回的 handle 执行 dispose 会移除实时对象，但当前 seam 无法删除持久化内容，因此会留下一个仍可恢复的 child，而继续执行管理器却判定它从未建立。改为返回 `AgentSetupCommit`，Agent 工厂便可在自身的发布边界同步执行同一项可变状态检查。
|
||||
|
||||
## 影响
|
||||
|
||||
- 只有安装 report 包贡献时，可继续进程内 child 才会恰好暴露一个作用域局部 `report` schema；无关 Agent 永远不会暴露该 schema。
|
||||
- 工具返回 parent 消息的稳定 `MessageId`。静默投递没有 `InboxItemId`；唤醒投递会产生一个单独的 inbox 条目实例。
|
||||
- 只有确切的驻留 child 才能报告，且只能报告给根据持久化谱系推导的确切在线直接 parent。服务不接受接收方参数，也不提供离线 fallback。
|
||||
- 静默投递是校验后的默认模式，绝不会启动 parent 请求。wakeup 会恰好创建一个后续 FIFO 轮次，绝不 steering 已开始的轮次。
|
||||
- parent 接受后取消或 dispose child 不会撤回报告。接受前，child dispose、drain、parent 丢失或调用方取消都会拒绝操作。
|
||||
- 新建和恢复的 Activation 都会在发布前组合当前设置贡献。新授权等待下一个 Activation 才生效，而已驻留 child 的授权撤销立即生效。
|
||||
- 单元覆盖固定可见性、allow-list 行为、两种投递模式、稳定身份与来源信息、嵌套路由、无效发送方、缺失的 parent、取消、drain、撤销竞争，以及不存在 Task 或隐式最终报告。
|
||||
- 无密钥整体组装快照证明真实 child 工具、静默且不唤醒的行为、持久化 parent 封装，以及 parent 后续消费。
|
||||
|
||||
### 已接受的风险
|
||||
|
||||
该接受边界弱于持久化端到端投递。崩溃可能导致结果不明，重试则可能重复报告。
|
||||
|
||||
wakeup 模式可能在嵌套 child 频繁报告时放大模型工作量。由部署所有者控制并默认静默，可以限制该风险，但无法完全消除。
|
||||
|
||||
注册表中的存在性就是 parent 在线信号。宿主拥有的 parent 如果已开始 `AgentHandle.dispose()` 但尚未展开其作用域，仍可能接受并追加一条本进程不会再处理的报告。要弥合这个缺口，需要 Agent 层面的 dispose 开始信号，不能由 subagent 层推断。
|
||||
@@ -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/2026-07-30-current-sandbox-policy-context.md
|
||||
2026-07-30-current-sandbox-policy-context.md: 093f9a8a0b58256bb4f2301cc62fa83629de4fbd
|
||||
2026-07-30-current-sandbox-policy-context.zh.md: 729ea9d50c7dbbfa027e1cad11929ae1c2b379b1
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user