dsh-win-notify

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A DeepSeek Harness (dsh) plugin that shows a Windows toast notification with sound when an agent task finishes.

• App name DeepSeek with the official whale icon in the notification
• Notifies when a top-level agent turn completes (running → idle); subagent turns stay silent
• Shows the last user prompt in the notification body
• Also notifies on task errors (configurable)
• Click the notification to switch and foreground a live GUI tab in place — no transient browser tab; only when no live GUI exists does it open a new one (deep link via ?session=<id>)
• Also notifies while waiting for user approval on sandbox/permission requests (configurable)
• Also notifies when the agent asks you a question (ask_user_question) and waits for your reply (configurable)
• Focus-aware: while the GUI page is focused and showing the session that triggered the event, that session's notifications are suppressed — no disturbance when you are already watching
• Tasks you manually stop are not treated as completed — no notification
• Pure PowerShell 5.1 (built into Windows) — no extra dependencies

Requirements

• Windows 10/11
• dsh (DeepSeek Harness) — any profile (web, headless, tui)

Install

dsh plugin --profile web add github:MuziIsabel/dsh-win-notify

dsh plugin forwards to pnpm inside the profile directory; the bundle reconciles itself into the profile's dsh.profile.bundles list. Restart (or let the profile's HMR apply) the profile for the row to activate.

> The plugin works in any profile — add it to headless/other profiles the > same way if you want notifications there too.

Uninstall

dsh plugin --profile web remove dsh-win-notify

Configuration

The bundle inserts a loader row win-notify into the profile. Override its config in the profile's cordis.patch.yml:

- id: win-notify
  config:
    enabled: true          # enable the plugin (default true)
    sound: default         # default | reminder | sms | alarm | silent
    onError: true          # also notify on task errors (default true)
    openOnClick: true      # click to open/select the GUI session (default true)
    directActivate: true   # deliver to a live loopback GUI tab first; otherwise use browser deep-link
    baseUrl: ''            # custom GUI root URL (default: auto from webServer port)
    approval: true         # notify while waiting for user approval (default true)
    approvalWaitMs: 3000   # how long an approval may pend before notifying
    question: true         # notify while waiting for a user reply (default true)
    questionWaitMs: 3000   # how long a question may pend before notifying
    suppressWhenVisible: true  # suppress notifications for the session you are actively viewing (default true)
    visibilityTtlMs: 25000      # focus-state freshness window (client heartbeats every ~10s)
    title: 'DeepSeek Harness'
    body: '任务已完成'
    bodyError: '任务出错'
    maxPromptChars: 64

How it works

1. Identity registration (one-time, automatic). Windows only displays toasts from registered app identities. On activation the plugin: - compiles a tiny DeepSeek.exe stub into %LOCALAPPDATA%\DeepSeek; - creates a Start Menu shortcut DeepSeek.lnk pointing at it, with the multi-size DeepSeek.ico (generated from the official DeepSeek Harness favicon) as its icon; - writes the AppUserModelID (DSH.WinNotify) onto the shortcut via IPropertyStore P/Invoke (the BurntToast technique). Toasts then display as DeepSeek with the whale icon. The shortcut is the identity carrier — do not delete it; the plugin recreates it if missing. 2. Event hook. The plugin listens on the host plane for agent/status events. When a session's agent transitions running → idle, it checks the session log's last turn/end reason: completed → notification, error → error notification (if enabled), aborted (manual stop) → skip. 3. Notification. Spawns powershell.exe (Windows PowerShell 5.1, which has WinRT projection) with a UTF-16LE -EncodedCommand script that shows a ToastNotification with an ms-winsoundevent audio element, so Chinese text is never garbled. If registration fails, it falls back to a NotifyIcon balloon. 4. Click-to-open without a transient tab. On loopback GUI URLs, the registered dsh-win-notify:// protocol starts the small local DeepSeek.exe helper rather than a browser. It asks the local DSH server to deliver an open-session command to the most recently focused live GUI tab; that tab calls sessions.open(id) in place (no full-page refresh and no new browser tab). After a successful acknowledgement, the helper makes a best-effort Windows UI Automation selection of the matching Chrome/Edge tab, so a click made while you are browsing another tab can bring the DSH tab to the foreground. The helper matches the tab by its post-switch title, with a race-proof app-name fallback, and preserves maximized or normally sized browser windows; only minimized windows are restored. Browser accessibility, elevation, virtual-desktop, and focus-stealing policy can still prevent foregrounding; in that case the session is nevertheless selected in the background. If no live GUI acknowledges promptly, or the protocol registration is unavailable, the helper safely falls back to the normal <gui>/?session=<id> deep link; its BroadcastChannel handoff remains a second fallback. The first custom-protocol click can require a one-time browser/Windows confirmation. Non-loopback custom baseUrl values keep the normal HTTP deep link for safety.

Troubleshooting

• No notifications: check Windows Settings → System → Notifications →

DSH.WinNotify is enabled. Also make sure the Start Menu shortcut DeepSeek.lnk exists.

• Diagnostics: the plugin appends a log line for every registration

attempt and notification at $DSH_HOME/dsh-win-notify.log.

License

MIT. The notification icon is derived from the DeepSeek Harness favicon (@deepseek-ai/dsh-web-frontend, MIT © DeepSeek).