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fix(host): preserve subagent continuation ownership

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This commit is contained in:
Dudu-0223
2026-07-31 22:48:30 +08:00
committed by Tianyi Cui
parent 1aedb23ca6
commit 9a7be21b7f
29 changed files with 514 additions and 101 deletions
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4
.agents/notes/implemented/bug-fix/2026-07-31-web-stop-preserves-queue.i18n.yaml
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@@ -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/bug-fix/2026-07-31-web-stop-preserves-queue.md
2026-07-31-web-stop-preserves-queue.md: 943e95d6951a28929c4f8ce4d0b6e17224b08ede
2026-07-31-web-stop-preserves-queue.zh.md: bbadd8adf8fd5bb0604ef87d322e48ce4c2ed759
2026-07-31-web-stop-preserves-queue.md: b8bba45009c126495a8b03ee36d6eb2cccac9a93
2026-07-31-web-stop-preserves-queue.zh.md: 0e1fffae8819bea81b91fae10c76dbadc78474fe

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.agents/notes/implemented/bug-fix/2026-07-31-web-stop-preserves-queue.md
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@@ -12,7 +12,7 @@ The browser cannot repair that loss by resending visible rows. It does not own t
## Decision
`session.cancel` is the Web Host API's active-turn stop. It calls `agent.cancel({ kind: 'user' }, { keepInbox: true })`, preserving pending inbox work while cooperatively aborting the current turn. The underlying option preserves queued and steering entries; the Web Queue projection continues to expose only queued entries.
`session.cancel` is the Web Host API's active-turn stop for ordinary sessions. It rejects session-backed subagents with `agent-busy`; otherwise it calls `agent.cancel({ kind: 'user' }, { keepInbox: true })`, preserving pending inbox work while cooperatively aborting the current turn. The underlying option preserves queued and steering entries; the Web Queue projection continues to expose only queued entries.
The AgentLoop starts no concurrent replacement turn. It closes and flushes the interrupted turn, reaches cancellation quiescence, and then claims the next waking queued occurrence through its existing FIFO driver. That claim emits `agent/inbox/dequeue`, so the Host's authoritative `session/queue` snapshot retires the claimed row and leaves the remaining tail visible. The browser neither resends nor promotes any row. Work that ignores cancellation delays this handoff until it settles.

2
.agents/notes/implemented/bug-fix/2026-07-31-web-stop-preserves-queue.zh.md
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@@ -12,7 +12,7 @@ Web 停止按钮调用 `session.cancel`，后者映射到广义 `agent.cancel({
## 决策
`session.cancel` 是 Web Host API 的活动轮次停止操作。它调用 `agent.cancel({ kind: 'user' }, { keepInbox: true })`，在协作式中止当前轮次的同时保留待处理 inbox 工作。底层选项会保留 queued 和 steering 入队项；Web Queue 投影继续只暴露 queued 入队项。
`session.cancel` 是 Web Host API 面向普通会话的活动轮次停止操作。它会以 `agent-busy` 拒绝由会话支撑的 subagent；否则会调用 `agent.cancel({ kind: 'user' }, { keepInbox: true })`，在协作式中止当前轮次的同时保留待处理 inbox 工作。底层选项会保留 queued 和 steering 入队项；Web Queue 投影继续只暴露 queued 入队项。
AgentLoop 不会启动并发的替代轮次。它会关闭并 flush 被中断的轮次，达到取消的完全停稳，然后通过现有 FIFO 驱动器认领下一个可唤醒的 queued 入队项。该认领会发出 `agent/inbox/dequeue`，因此 Host 的权威 `session/queue` 快照会退役已认领行，并使剩余队尾保持可见。浏览器既不重发，也不提升任何行。忽略取消的工作会延迟这一交接，直到该工作结算。