refactor(agent): complete inbox lifecycle migration
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@@ -13,13 +13,13 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
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**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.
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**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.
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**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.
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**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.
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**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`.
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**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`.
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**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.
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**Web actions address Queue only.** The Host excludes pending steering from `session/queue`; steering retains its 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 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.
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## Alternatives considered
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@@ -27,7 +27,7 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
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**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.
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**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.
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**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.
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**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.
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@@ -35,10 +35,10 @@ The Web queue rendered pending messages but could not edit or delete one row. `M
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## Verification
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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.
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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, single-row presentation, default multi-row collapse, interaction-forced visibility, reset after emptying, expansion, text-only editing, save and cancel affordances, removal, retirement races, and disabled mixed-content editing. Keyless browser scenarios capture the default collapsed header before expanding the queue and driving its exposed edit and delete actions through the built Web composition and real HTTP/SSE wire.
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## Consequences
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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.
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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.
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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.
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@@ -13,13 +13,13 @@ 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
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**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。
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**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。
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**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。
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**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。
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**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`。
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**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`。
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**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。
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**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 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。可见行暴露编辑和删除操作,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。
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## 考虑过的替代方案
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@@ -27,7 +27,7 @@ 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
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**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。
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**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。
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**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。
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**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。
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@@ -35,10 +35,10 @@ 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
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## 验证
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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。
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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、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、退役竞态,以及禁用混合内容编辑。无密钥浏览器场景会先捕获默认收起的表头,再展开队列,并通过构建后的 Web 组合和真实 HTTP/SSE 协议操作其公开的编辑和删除。
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## 后果
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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。
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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。
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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。
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