Merge branch 'feat/subagent-report-semantics' into feat/subagent-settlement-delivery
# Conflicts: # examples/acp-agent/tests/snapshots/advanced-toolchain/session.1.jsonl # examples/acp-agent/tests/snapshots/advanced-toolchain/session.2.jsonl # examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.1.jsonl # examples/acp-agent/tests/snapshots/subagent-depth-two-rejection/session.2.jsonl # examples/acp-agent/tests/snapshots/subagent-mixed/session.1.jsonl # examples/acp-agent/tests/snapshots/subagent-mixed/session.2.jsonl # examples/acp-agent/tests/snapshots/subagent-multi/session.1.jsonl # examples/acp-agent/tests/snapshots/subagent-multi/session.2.jsonl # examples/headless-agent/tests/snapshots/advanced-toolchain/session.1.jsonl # examples/headless-agent/tests/snapshots/advanced-toolchain/session.2.jsonl # examples/headless-agent/tests/snapshots/advanced-toolchain/session.jsonl # examples/headless-agent/tests/snapshots/compaction-recovery/session.jsonl # examples/headless-agent/tests/snapshots/pty-tools/session.jsonl
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Hypatia May
@@ -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 packages/subagent/subagent/README.md
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README.md: 6373f09e44a5bb87679d2afe67321f49c7174fef
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README.zh.md: a657e6371677caa97f0884d3f741a95b3cc6c437
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README.md: b31a577b23196523b88bff5c05792e06eb1fdd88
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README.zh.md: 7d276ce6915f916b01b818f249cc0419c477dd12
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@@ -44,7 +44,7 @@ Every in-process child is composed by one call, `applyChildComposition(childCtx,
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`childSessionMeta()` records the joined preset id on the child's durable header for the same reason a top-level session records its own: the preset decides the tool schemas and prompt sections the model saw, so a cold read of the child's history has to rebuild that composition rather than the deployment default. It is read from the parent's live scope chain, not from the parent header, because a parent that switched preset while blank runs on the newer composition while its header still names the older one.
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Continuable creation is the optional `SubagentProvider.prepareContinuable?()` method: its presence is the capability check, so the service rejects a configured continuable start on a provider without it, while a provider that has it may still serve ordinary one-shot delegations. The method returns only a detached `ContinuableCreateSpec` (`{ seed? }`) — data, never a capability: it carries no Agent, `AgentHandle`, prompt delivery, result, disposal, or resume operation, because the continuation manager owns identity reservation, composition, Agent creation, prompt delivery, cold resume, ownership, and disposal after preparation. A one-shot `SubagentRun` represents one disposable foreground delegation with one result and no cold-resume operation.
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Continuable creation is the optional `SubagentProvider.prepareContinuable?()` method: its presence is the capability check, so the service rejects a configured continuable start on a provider without it, while a provider that has it may still serve ordinary one-shot delegations. The method returns only a detached `ContinuableCreateSpec` (`{ seed? }`) — data, never a capability: it carries no Agent, `AgentHandle`, prompt delivery, result, disposal, or resume operation, because the continuation manager owns identity reservation, composition, Agent creation, prompt delivery, cold resume, ownership, and disposal after preparation. A one-shot `SubagentRun` represents one disposable foreground delegation with one result and no cold-resume operation. The service may invoke one provider concurrently for distinct siblings: each start or preparation owns its mutable state and cancellation path, and one operation's failure, result, or cleanup must not settle or release another. A provider may queue its own capacity internally without changing that independence contract.
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## The durable descriptor
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@@ -44,7 +44,7 @@ subagent seam 允许一个 agent（智能体）通过具名提供方把工作委
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`childSessionMeta()` 把所加入的 preset id 记在子 agent 的持久化 header 上，理由与顶层会话记录自己的那一个相同：preset 决定了模型所见的工具 schema 与提示段，因此冷读子 agent 的历史时必须重建那份组装，而不是部署默认值。该值从父方**活着的** scope 链读取，而不是从父方 header 读取，因为在空白期切换过 preset 的父方运行在更新的那份组装上，而它的 header 仍写着旧的那个。
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可继续创建对应可选的 `SubagentProvider.prepareContinuable?()` 方法：方法是否存在就是能力检查，因此服务会在没有该方法的提供方上拒绝已配置的可继续启动，而具备该方法的提供方仍可服务普通一次性委派。该方法只返回分离的 `ContinuableCreateSpec`（`{ seed? }`）——这是数据，绝非能力：它不携带任何 Agent、`AgentHandle`、提示词投递、结果、dispose 或恢复操作，因为准备之后，继续执行管理器拥有身份预留、组合、Agent 创建、提示词投递、冷恢复、所有权和 dispose。一次性 `SubagentRun` 表示一次可 dispose 的前台委派，只有一个结果，且没有冷恢复操作。
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可继续创建对应可选的 `SubagentProvider.prepareContinuable?()` 方法：方法是否存在就是能力检查，因此服务会在没有该方法的提供方上拒绝已配置的可继续启动，而具备该方法的提供方仍可服务普通一次性委派。该方法只返回分离的 `ContinuableCreateSpec`（`{ seed? }`）——这是数据，绝非能力：它不携带任何 Agent、`AgentHandle`、提示词投递、结果、dispose 或恢复操作，因为准备之后，继续执行管理器拥有身份预留、组合、Agent 创建、提示词投递、冷恢复、所有权和 dispose。一次性 `SubagentRun` 表示一次可 dispose 的前台委派，只有一个结果，且没有冷恢复操作。服务可以针对不同的同级子 agent 并发调用同一提供方：每次启动或准备都拥有各自的可变状态和取消路径，一项操作的失败、结果或清理不得使另一项操作结算或释放。提供方可以在内部按自身容量排队，但不得改变这项独立性约定。
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## 持久化描述符
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@@ -277,7 +277,10 @@ export interface SubagentRun {
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/**
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* One registered transport for running child agents. Providers are trusted
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* same-process implementations; callers treat descriptors and returned values
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* as borrowed immutable data.
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* as borrowed immutable data. The service may call one provider concurrently
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* for distinct children. Providers isolate operation-local mutable state; a
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* shared capacity controller may delay an operation but must not couple its
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* settlement or cleanup to a sibling.
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*/
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export interface SubagentProvider {
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/** Unique registry name (e.g. `spawn`, `fork`, `acp`). */
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@@ -298,7 +301,8 @@ export interface SubagentProvider {
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* initial turn. Before fulfillment, the provider owns setup and cleans any
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* unpublished partial resources before rejecting. Ownership transfers on
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* fulfillment; subsequent turn or infrastructure failure settles through
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* the returned run.
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* the returned run. Distinct starts may overlap; cancellation, failure,
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* result settlement, and disposal remain independent for each run.
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*/
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start(request: ResolvedSubagentStartRequest): Promise<SubagentRun>
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/**
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@@ -313,6 +317,8 @@ export interface SubagentProvider {
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* continuation manager owns identity reservation, composition, Agent
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* creation, prompt delivery, cold resume, ownership, and disposal, so a
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* provider never sees the child's Agent, handle, turns, or teardown.
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* Distinct preparations may overlap; each follows its own signal and returns
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* data belonging only to `request.sessionId`.
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*/
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prepareContinuable?(request: ContinuableCreateRequest): Promise<ContinuableCreateSpec>
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}
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