dsh-win-toast-notify

A dynamic Cordis plugin for DeepSeek Harness (DSH): pop a native Windows toast notification every time an agent task completes — built for DSH running under WSL2.

DSH 动态 Cordis 插件：每次 agent 任务完成后，在 Windows 上弹出原生 Toast 通知。专为 WSL2 下的 DeepSeek Harness 设计，Windows 侧零依赖。

Features

• 🎯 Fires exactly once per completed task — listens to DSH's agent/status event and notifies on idle (no driver remains scheduled or active).
• 📊 Rich completion stats — every toast carries the session title, turn number, elapsed time, tool-call count, and model name.
• 🚨 Immediate error alerts — a separate toast fires the moment agent/error is emitted, with the error message; the completion toast then reports the outcome (任务结束（有错误）) and switches to the IM sound.
• 🖱️ Click-through — clicking the toast (or its 打开 DSH button) opens the DSH web UI in your default browser via protocol activation.
• 🌳 Root-agent filter — subagents and workflow children are filtered out via the agents service, so background delegation doesn't spam you.
• 🔔 Native Windows toast — real notification-center entry with sound, not a console popup.
• 🪶 Zero Windows-side dependencies — no BurntToast, no SnoreToast, no extra install: powershell.exe + WinRT, invoked through WSL interop.
• 🛡️ Graceful on non-WSL — feature-detects powershell.exe at startup; outside WSL the plugin simply stays silent.
• 🧩 Host-only — no Client half, no browser approval needed to activate.

How it works

 DeepSeek Harness (WSL2, Node.js)                    Windows
┌──────────────────────────────────────┐            ┌─────────────────────────────┐
│  Dynamic Host plugin                 │            │  通知中心 (Action Center)     │
│                                      │            │                             │
│  ctx.on('agent/status')              │            │  ┌────────────────────────┐ │
│    └─ status === 'idle' ?            │            │  │ <会话标题>              │ │
│       └─ root agent only             │            │  │ 任务已完成 · 第3轮      │ │
│       + stats (turn/tools/           │            │  │ · 耗时2分35秒          │ │
│         duration/model)              │            │  │ · 工具调用12次          │ │
│            │                         │            │  │ [打开 DSH] ──click─▶ 浏览器│ │
│            ▼                         │            │  └────────────────────────┘ │
│                                      │            │            ▲                │
│  subprocess.spawn(                   │            │            │ Show($toast)   │
│    powershell.exe                    │  interop   │            │                │
│    -EncodedCommand <UTF-16LE b64>    │───────────▶│  powershell.exe             │
│  )                                   │            │  WinRT ToastNotification   │
└──────────────────────────────────────┘            └─────────────────────────────┘

1. DSH emits agent/status with { agent, status } on every idle ⇄ running transition. idle = the task is done. The running edge opens a per-agent stats window (start time, tool-call snapshot).
2. The plugin keeps only transitions from root agents (agents.roots()), so subagent/workflow completions stay quiet. While the task runs it gathers stats from DSH events: tools/result (per-agent tool-call count), agent/turn-stopping (turn number), and agent/error (outcome + immediate error toast).
3. A PowerShell script is built that loads the WinRT Windows.UI.Notifications types, wraps the session title (from the sessionTitle service) and the stats line (XML-escaped) in a ToastGeneric toast XML with a protocol-activation launch/button pointing at the DSH web UI, then calls Show().
4. The script is encoded as base64 of UTF-16LE (what -EncodedCommand expects — note the builtin btoa is UTF-8, so the plugin ships a tiny byte-level base64 encoder) and spawned via DSH's subprocess service: powershell.exe -NoProfile -NonInteractive -EncodedCommand ....
5. WSL interop translates the call onto Windows; the toast lands in the notification center with the default (or IM, for errors) sound.

Requirements

Installation

Two ways to install: a dynamic plugin for the current process (Options A/B), or a persistent mount in an agent preset that survives DSH restarts (Option C, recommended).

This plugin is a dynamic Cordis plugin for a running DSH process. Paste host.js as the Host code and activate it.

Option A — Web GUI

1. In your DSH session, open the dynamic plugin panel (Cordis plugins).
2. Create a new plugin with any 3–6 letter id prefix (e.g. winntf).
3. Paste the body of host.js (everything after the comment block, starting at return {) into the Host code field. Leave Client empty.
4. Activate the package.

Option B — cordis_define tool

cordis_define:
  plugin:  { kind: "new", idPrefix: "winntf" }
  name:    win-task-notify
  code:    { host: <content of host.js after the comments> }
→ then cordis_run with the returned pluginId + packageId

The plugin is Host-only, so it activates without any Client approval step. On startup it logs which powershell.exe it resolved:

[win-task-notify] powershell.exe resolved to /mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe

Option C — Persistent host mount via profile patch layer (survives restart, recommended)

win-task-notify.mjs is the same plugin as a proper ESM module for composition rows. Mount it through your profile's user patch layer — no agent preset involved, one host-level instance for the whole process, loaded automatically on every boot:

1. Copy the file into your profile directory:

   ${DSH_HOME:-~/.dsh}/profiles/<profile>/plugins/win-task-notify.mjs
   

2. Append one insert block to the profile's cordis.patch.yml (relative row names resolve against the profile directory):

   # 宿主级插件：消费 subprocess/agents/sessionTitle，不发布服务 → 无需 isolate realm
   - insert:
       - id: plugin-win-task-notify
         name: ./plugins/win-task-notify.mjs
   

3. Validate the composed tree offline, then restart DSH:

   dsh --profile <profile> --dump-config   # the row must appear at the root
   

   The profile patch layer is also hot-reloaded on long-lived surfaces, so a restart may not even be needed.

Alternative: mount the same file inside an agent preset (${DSH_HOME}/.agent-presets/<preset-id>/plugins/ + a row in its agent.cordis.yml) — one instance per session. To change what a shipped preset does, copy the preset first (never edit the shipped install) and edit the copy.

Note: dynamic plugins (Options A/B) live only in the current process; after a DSH restart they are gone, while the profile patch row loads again automatically.

Verification

The quickest check is to simply finish a task — the toast fires at the end of the turn that activates it. To test the notification channel independently of DSH:

chmod +x scripts/test-toast.sh
./scripts/test-toast.sh "DSH 通知测试" "来自 WSL 的测试通知"

If a toast appears, the channel works and DSH will notify you on every task completion.

Automated tests

The event logic of both variants (host.js and win-task-notify.mjs) is covered by a dependency-free Node test suite that mocks the DSH services:

npm test            # node --test test/plugin.test.mjs
npm run check       # syntax check for both JS files + the shell script

Behavior notes

• Completion toast: title = the session's auto-generated title (fallback DeepSeek Harness); body = 任务已完成 · 第 N 轮 · 耗时 X 分 Y 秒 · 工具调用 N 次 · <model> — each segment appears only when known.
• Error toast: a separate alert fires immediately on agent/error (deduplicated to one per agent per 30 s). If the task ends in error, the completion toast says 任务结束（有错误） and uses the IM sound instead of the default.
• Click-through: both the toast body and its 打开 DSH button open http://127.0.0.1:3080 via protocol activation — edit DSH_URL in host.js if your DSH web UI listens on another port.
• Sender identity: toasts are attributed to Windows PowerShell (the PowerShell 5.1 AUMID). To rebrand, register a dedicated AUMID (e.g. via a Start-menu shortcut) and replace $appId in the script.
• One per goal round: each autonomous goal continuation round also ends in idle, so you get one toast per round (with that round's own stats) — intentional, but easy to throttle if you prefer.
• Robust text handling: titles/error messages are XML-escaped, invalid XML 1.0 control characters are replaced, and apostrophes are doubled for the PowerShell single-quoted string — so It's done, <tags> and &-signs all toast correctly.
• No stuck child processes: each powershell.exe spawn is aborted after 15 s, so a hung WSL interop call cannot leak a managed child forever. Per-agent state is cleaned up on agent/disposed.
• Turn accuracy: the completion toast only reports a turn number that actually completed during that run; a run that failed before agent/turn-stopping no longer reuses the previous run's number.
• Process-local lifetime: like every dynamic plugin, it lives in the current DSH process. After a restart, activate it again — or mount it permanently in your agent preset composition.

Troubleshooting

License

MIT © 2026 yang040709

中文说明

这是什么

一个 DeepSeek Harness (DSH) 动态 Cordis 插件：每次 agent 任务完成后，在你的 Windows 桌面弹出原生 Toast 通知。专为 WSL2 下运行 DSH 的场景设计。

特性

• 监听 DSH 的 agent/status 事件，idle（任务结束、驱动静默）时触发通知，每轮任务恰好一次
• 丰富统计：每条完成通知包含会话标题、轮次、耗时、工具调用次数、模型名
• 错误即时通知：agent/error 触发时立刻弹独立通知（含错误信息，30 秒去重），任务结束时正文显示"任务结束（有错误）"并改用 IM 提示音
• 点击跳转：点击通知本体或"打开 DSH"按钮，直接浏览器打开 DSH 页面（protocol 激活）
• 通过 agents.roots() 过滤子代理/工作流子任务，后台委托不会刷屏
• 原生 Windows Toast（进通知中心、带提示音），Windows 侧零依赖：只用自带的 PowerShell 5.1 + WinRT
• 自动探测 powershell.exe，非 WSL 环境静默降级
• 仅 Host 端，激活无需浏览器审批

工作原理

DSH（WSL2 内）监听 agent/status → 根 agent 进入 idle → 构造 PowerShell WinRT 脚本 → 编码为 UTF-16LE base64（-EncodedCommand 要求的格式）→ 通过 subprocess 服务 spawn powershell.exe → WSL 互操作转发到 Windows → Toast 弹出。

安装（DSH 内）

两种方式：动态插件（仅当前进程有效）或 profile 补丁层持久化挂载（宿主级，随 DSH 重启自动生效，不依赖预设，推荐）。

1. 打开 DSH 的动态插件面板（或使用 cordis_define 工具）
2. 新建插件（id 前缀如 winntf），把 host.js 中注释块之后的函数体粘贴到 Host 代码框（Client 留空）
3. 激活即可；本轮任务结束时你就会收到第一条通知

持久化挂载（profile 补丁层，重启后依然自动生效）：

1. 把 win-task-notify.mjs 复制到你的 profile 目录：

   ${DSH_HOME:-~/.dsh}/profiles/<profile>/plugins/win-task-notify.mjs
   

2. 在该 profile 的 cordis.patch.yml 中追加（相对路径相对 profile 目录解析）：

   # 宿主级插件：消费 subprocess/agents/sessionTitle，不发布服务 → 无需 isolate realm
   - insert:
       - id: plugin-win-task-notify
         name: ./plugins/win-task-notify.mjs
   

3. 用 dsh --profile <profile> --dump-config 校验组合树（该行必须出现在根级），然后重启 DSH（profile 补丁层在长驻进程上支持热重载，可能无需重启）。

备选：agent preset 挂载（每个会话一份实例）——同文件放进 ${DSH_HOME}/.agent-presets/<preset-id>/plugins/ 并在该 preset 的 agent.cordis.yml 末尾加同名行；修改内置 preset 前请先复制副本再改副本。

验证

chmod +x scripts/test-toast.sh
./scripts/test-toast.sh "DSH 通知测试" "来自 WSL 的测试通知"

注意事项

• 通知来源显示为 "Windows PowerShell"；想改名需注册专用 AUMID
• 目标续跑（goal round）每轮结束也会各弹一次
• 动态插件只在当前 DSH 进程内生效，重启后需重新激活；如需永久挂载，可把它写进 agent preset 的 composition

许可证

MIT