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+# AI Office Connector
+
+The **AI Office** page lets the local Harness connect outward to a public Office. The machine needs no public IP, forwarded port, or WebSocket server. The Device Token is written only to the Harness credential provider; the ordinary config file contains only the device ID, Office origin, workspace aliases, and instruction-preset aliases. Office selects aliases and never receives local absolute paths.
+
+The current protocol is `office-harness.v1`. The connector authenticates and advertises capabilities with `POST /api/harness/connector/heartbeat`, then opens the downstream event plane with `GET /api/harness/connector/stream` over SSE. The settings page derives every fixed hook from the Office Base URL and reconnects with backoff after a disconnect.
+
+A `job.available` event makes the local connector fetch the payload, validate Workspace/Preset aliases, claim a 90-second lease, and renew it every 30 seconds. It creates an isolated Harness Session, reports safe status/tool/text progress, and writes a terminal result exactly once. Tool approvals and follow-up questions surface in Office; approve, reject, and text answers return over SSE to the original Session. Heartbeats and leases recover from dropped connections.
+
+A successful heartbeat response must be JSON: `{"ok":true,"protocolVersion":"office-harness.v1"}`. This makes a successful connection test proof of a compatible Office Connector instead of any URL that happens to return 200.
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+# AI Office Connector
+
+「AI Office」页让本机 Harness 主动连接公网 Office，本机无需公网 IP、端口转发或 WebSocket 服务。Device Token 只写入 Harness 凭据存储；普通配置文件仅保存设备 ID、Office Origin、工作区 alias 和 Instruction Preset alias。Office 只能选择 alias，不会收到本机绝对路径。
+
+当前协议版本为 `office-harness.v1`。连接器使用 `POST /api/harness/connector/heartbeat` 完成鉴权和能力握手，再以 `GET /api/harness/connector/stream` 建立 SSE 下行；设置页会从 Office Base URL 自动展示全部固定 Hook，并在断线后按退避策略自动重连。
+
+Office 的 `job.available` 会触发本机拉取任务、校验 Workspace/Preset alias、领取 90 秒租约并每 30 秒续租。连接器创建独立 Harness Session，把状态、工具名和增量文字安全回传 Office，终态只允许写入一次。Harness 发起的工具审批或补充问题会进入 Office 人工面板；批准、拒绝或文字答案再经 SSE 回到原 Session，断线时由租约与 Heartbeat 恢复。
+
+Heartbeat 成功响应必须是 JSON：`{"ok":true,"protocolVersion":"office-harness.v1"}`。这使「连接测试通过」代表命中了兼容的 Office Connector，而不只是某个碰巧返回 200 的网址。