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fix(subagent): cancel pending live delivery

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Dudu-0223
2026-07-27 19:49:22 +08:00
committed by imccyu
parent fea31a012d
commit 644bf00b86
19 changed files with 320 additions and 65 deletions
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docs/core-data-structures/subagent.md
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@@ -105,7 +105,7 @@ interface SubagentStartRequest {
## Continuable children: `SubagentContinuation` and `SubagentResumeRequest`
A **continuable background subagent** is a durable child session with a series of Task-backed activations. `SubagentService.startContinuable()` allocates the stable child id, snapshots the versioned `subagent/descriptor` payload, and passes both through the resolved start request; the provider publishes exactly that id and appends the descriptor inside the child's first turn. `SubagentService.sendMessage()` loads and authorizes a stopped child before dispatching a fully resolved resume request through the raw `resume()` operation, or steers its live activation. An internal manager owns descriptor lookup and Task association only while `ctx.tasks` and `ctx.agents` exist; persistence is required per continuation operation, not to load the provider registry. `startContinuable()` returns both identities, while `sendMessage()` reports whether the message `steered` the existing Task or `started` a fresh one. Every sender supplies a `MessageSource`; the optional model-facing tool uses `CoordinatorMessageSource`, while a human adapter uses `{ kind: 'user' }`.
A **continuable background subagent** is a durable child session with a series of Task-backed activations. `SubagentService.startContinuable()` allocates the stable child id, snapshots the versioned `subagent/descriptor` payload, and passes both through the resolved start request; the provider publishes exactly that id and appends the descriptor before the initial prompt is admitted. `SubagentService.sendMessage()` loads and authorizes a stopped child before dispatching a fully resolved resume request through the raw `resume()` operation, or steers its live activation. An internal manager owns descriptor lookup and Task association only while `ctx.tasks` and `ctx.agents` exist; persistence is required per continuation operation, not to load the provider registry. `startContinuable()` returns both identities, while `sendMessage()` reports whether the message `steered` the existing Task or `started` a fresh one. Every sender supplies a `MessageSource` and cancellation signal; abort while live delivery awaits admission cancels the shared activation and rejects after quiescence. The optional model-facing tool uses `CoordinatorMessageSource` and its tool-execution signal, while a human adapter uses `{ kind: 'user' }` and its interaction signal.
```ts type-equiv
/** Attribution for a model coordinator's follow-up to one of its children. */