dsh-notify

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Windows 11 native toast notifications for DeepSeek Harness.

Work keeps running while you are looking at something else. A turn that is blocked on an approval, has died on an error, or has quietly stopped making progress looks exactly like a turn that is still thinking. This plugin turns each of those transitions into a Windows toast, and clicking a toast brings the DSH window back to the front.

Situation	Toast
A tool call waits for your approval	DSH 需要你的授权 — the tool and its reason, with 打开 DSH / 知道了 buttons
DSH asks you a structured question	DSH 需要你的选择 — the question header and the question itself
A turn or a session fails	DSH 出错了 — the error text
The account needs a sign-in	DSH 账号需要处理
A turn that ran longer than minRunSeconds finishes	DSH 已完成 — how long it took
A running turn shows no progress for stallSeconds	DSH 可能卡住了 — how long it has been silent

Approvals and questions use a long-lived toast that stays in Action Center, so a request you missed is still there when you come back.

The copy above is the shipped default (locale: zh). Set locale: en for English toast text; the table is only illustrating which events raise a toast, not a required language.

Shipped policy: only what needs you

The defaults interrupt you for exactly one class of event — work that is blocked on you: an approval, a question, an account that needs a sign-in, or a failure. The last two rows of the table above are implemented and tested but off by default:

notifyOnIdle: false    # a long turn finished
notifyOnStall: false   # a running turn stopped showing progress

Turn both on if you would rather hear that a long turn completed, or that it went quiet:

notifyOnIdle: true
notifyOnStall: true
minRunSeconds: 20      # shorter turns stay silent
stallSeconds: 240      # silence before the "may be stuck" hint

A blocking toast can also be nudged once if nobody answers it:

escalateAfterSeconds: 90   # 0 disables it, which is the default

The nudge re-draws the same toast with a reminder sound and a "仍未处理" title, so Action Center still holds exactly one entry for that request rather than accumulating reminders.

Commands

/notify mute [分钟]   # 静音；不带分钟数则直到 unmute
/notify unmute
/notify status        # 静音状态 + 传输统计
/notify test          # 立刻发一条自检通知

A mute is a moment rather than a setting, which is why it is a command instead of a config key: it has to start the instant a meeting does and end when it ends. A mute stops new interruptions; it never blocks the redraw that retires a toast you already answered, because leaving a stale one on screen is worse than the interruption it would have caused.

/notify test and /notify status are also how you check the transport without waiting for a real event to occur.

Batching and progress

Two opt-in behaviours change when you are told things, so both are off by default — the shipped policy is to tell you the moment something needs you.

aggregateWindowSeconds: 20   # a burst becomes one toast naming the count
progressAfterSeconds: 120    # a long turn announces that it is still running
progressRefreshSeconds: 60   # ... and keeps the elapsed time current

A burst summarises into the category's tag, so successive bursts replace one another instead of stacking, and the summary carries the freshest detail plus the count. Blocking requests never enter the window: something that needs an answer appears immediately, however many arrive at once.

The progress toast carries an indeterminate bar, because an agent turn has no known completion fraction — the honest signal is "still going", plus how long. It is silent, refreshes under its own tag, and is rewritten as finished when the turn ends rather than being left claiming work is ongoing. Because the focus gate applies to it too, a refresh suppressed while you were watching is retried on the next tick, so the toast appears by the time you look away.

Staying quiet while you are watching

A toast is suppressed while the DSH window owns the foreground, because a notification about the thing already on your screen is noise. The check is asked of Win32 directly (GetForegroundWindow + GetWindowThreadProcessId) by the same PowerShell process that would draw the toast, so it costs no extra spawn.

It is built to fail open. A probe that answered "focused" to everything would silently swallow every notification, which is the one failure this plugin must never have, so the capability is proved once at activation: if the probe cannot name a foreground pid, the gate is switched off and every toast is drawn unconditionally. The plugin logs focus gate on or focus gate off with the reason, and the probe is testable in both directions without drawing anything:

# reports the foreground pid and whether each given pid matches it
$payload = @{ focusCheck = @{ pids = @(1234, 999999) } } | ConvertTo-Json -Compress

Set quietWhenFocused: false to be notified regardless of focus, or focusPid to compare against something other than the Host's parent process.

Action Center behaviour

An approval or question toast is re-drawn as 已处理 / Answered once it has been answered. An entry that keeps asking for a decision you already made is worse than no entry at all.

The redraw is the only mechanism available. ToastNotificationManager.History is scoped to the calling process's package identity, and the Host has none: from here GetHistory reports an empty history and every Remove fails with 0x80070490 Element not found. That was established by probe rather than inferred from the API surface — post a tagged toast, wait, then query the matching group. What an unpackaged process can do is post a toast whose tag and group Action Center already holds, which replaces it. So a settled request is retired by being re-drawn, silent and brief, rather than by being deleted.

Two consequences worth knowing: the settled toast briefly re-appears as a banner, and an unanswered toast is never removed — it stays until you act on it or dismiss it. Set settleResolvedToasts: false to leave the original in place.

There is deliberately no notification-history feature. Reading or clearing Action Center needs ToastNotificationManager.History, which is scoped to the calling process's package identity; from an unpackaged Host GetHistory reports nothing and Remove fails with 0x80070490. Action Center itself is the history, and a blocking toast uses duration: long precisely so it is still there when you come back.

A tag is derived rather than embedded, because Windows caps both Tag and Group at 64 characters and setting a longer one throws before the toast is shown — an over-long tag loses the notification, not merely its identity. A session id is 44 characters on its own, so a tag is an 11-character <category>-<hash> pair: stable per notification, distinct across sessions, and unable to outgrow the ceiling.

What clicking a toast does

The toast body opens openUri, and the Desktop shell resolves that to exactly one thing: raising the primary window — restored if minimized, recreated if it was destroyed. It does not navigate to the session that raised the toast. The shell wires second-instance to a zero-argument callback, so the command line carrying the URI is discarded, and the only URI it recognises anywhere is dsh://open. A toast raised by a background or subagent session therefore brings you back to DSH, not to that session.

Landing on the exact session would need the Desktop shell to accept a session-bearing deep link. No Host plugin can do it: the click arrives from Windows, not from the renderer, so there is nothing for a plugin to intercept.

Which session is asking

Because a click cannot navigate, every toast names its session in the footer: <project directory> · <first 8 characters of the session id> — for example default-workspace · 97217b96. A session whose project directory is not yet known is named 会话 <id tail> instead, so a raw 44-character session id never reaches a toast. Windows already prints the application name above the toast from the AUMID registration, which is why the footer is spent on this rather than repeating it.

Set attribution to override the footer with fixed text.

Install

The bundle installs into the current profile and survives restart:

plugin_manager  action: install_bundle  target: <this directory>

Then confirm the row is live:

cordis_inspect_query  provider: Config  method: listConfigs  input: { name: "dsh-notify" }

The Windows registration it performs

A desktop application may only post toasts under an Application User Model ID the shell recognises, and that takes two halves:

1. a Start Menu shortcut carrying the AUMID — the DeepSeek Harness installer already writes this (com.deepseek.dsh, visible as the shortcut's System.AppUserModel.ID), and
2. HKCU\Software\Classes\AppUserModelId\com.deepseek.dsh — which nothing writes, and without which CreateToastNotifier fails with 0x80073D54: The process has no package identity.

On activation the plugin writes the missing half if it is absent, so the toast carries the DeepSeek Harness name. The write is skipped whenever the recorded values already agree, and it is per-user only.

The icon it records comes from process.execPath, which is the Desktop application only when the Host runs under Electron. Started from a CLI, or from tools/verify-live.mjs, that path is a node binary; the plugin then records no icon at all rather than a wrong one, and Windows keeps using whatever the Start Menu shortcut advertises. Set iconUri to pin it explicitly.

To undo the registration:

Remove-Item 'HKCU:\Software\Classes\AppUserModelId\com.deepseek.dsh' -Recurse

Set registerAppId: false to opt out of the write entirely (toasts will then fail unless you registered the AUMID yourself).

Why Windows PowerShell, and not PowerShell 7

The plugin probes Windows PowerShell first and only then pwsh, on purpose:

• PowerShell 7 runs on .NET (Core), which dropped the built-in WinRT type projection. Windows.Data.Xml.Dom.XmlDocument and Windows.UI.Notifications.* cannot be resolved there at all, so the toast cannot even be built.
• Windows PowerShell 5.1 runs on .NET Framework, whose WinRT projection ships in the box. This is the PowerShell that can post a toast.

shell: auto runs the probe at activation and logs which one won. Point shell: at an absolute pwsh.exe or powershell.exe to choose explicitly; a probe that fails leaves the plugin inert with a logged reason rather than a silently broken notifier.

Settings

The plugin ships its own Settings page, contributed by a browser half. It appears in two places, so the controls are reachable without opening Settings while the Plugins row still carries its own configure entry:

• a sidebar icon (sidebar.panellist) that opens a main-page panel (main, keyed dsh-notify) — the same pairing the token-ledger plugin uses; and
• the plugins.row.config row inside Plugins, keyed dsh-notify#dsh-notify, the seat the Plugins page dispatches for one row of one bundle.

The two surfaces consume different contracts, which matters before editing either. The Plugins row is handed a ConfigPageForm — { state, mutate }, a state value and a write — while the main-page panel has no owner, so it resolves the entry's scope itself (ctx.configForms.get) and adapts it to the shape the row expects. Both render the same component. npm run lint checks that the sidebar row and its panel share one id (the shell refuses a key no main entry claims) and that both halves spell the same settings namespace.

A Config schema alone does not produce a form. dsh-settings documents that forms expose only volatile fields, that ordinary configuration stays file-only, and that the auto-generated form has no shipped client that consumes it. Three things make this page real:

• .volatile() on the editable fields. Only those are projected into a form. The matching live readers are the VOLATILE_SPECS table; npm run lint checks the two agree in both directions, because a declared-but-frozen field promises an edit that never lands and a live reader without the declaration is never offered.
• configure({ auto: false }, ctx.fiber), declared through an optional ctx.inject(['settings'], …) child, so the Host does not also try to generate a page and the plugin still runs in a profile with no Settings service.
• The browser half (lib/client.js + the manifest's dsh.client), which owns the controls. It may not require a Harness Client package — the shared settings form was reimplemented from its behaviour instead — and it styles with --dsw-alias-* theme tokens only, which npm run lint also enforces.

Writes are immediate: one control, one edit, one scope.mutate carrying the revision it read, so a stale write refuses rather than clobbers. The Host is the only authority on acceptance, so the outcome is read back from the scope.

Fields the plugin reads at use time are editable live. Fields decided at activation — focusPid, stallCheckSeconds, maxInFlight, timeoutMs, selfTest — are marked （需重载） in the page and stay file-only, because promising a live edit for them would be a lie.

Two things it depends on:

• A restart is needed the first time, and after any change to the Host half: the Host caches an ES module generation, so toggling the bundle re-applies the row's config but does not re-import the code. The browser half loads on a page refresh — the client-plugin HMR receiver only reloads it without one while pnpm run dev:web is running.
• @deepseek-ai/schemastery resolving from this directory. DSH's own copy lives inside the installation, which a link:-installed bundle cannot reach: Node resolves a linked package from its real path, and neither the profile's node_modules nor the installation is on that path. The package is therefore a real dependency, installed here. It is safe to hold a second copy in the process — schemastery registers its internals under Symbol.for("schemastery") and globalThis.__schemastery_*, which are process-global by design. If the import ever fails, the plugin logs settings page unavailable and keeps notifying: the page is never load-bearing.

Configuration

Every key is optional. Edit them on the Settings page, or directly in the row's config in cordis.patch.yml — the file remains the only way to set the activation-time fields.

Key	Default	Meaning
enabled	true	Master switch.
appId	com.deepseek.dsh	AUMID the toast posts under.
displayName	DeepSeek Harness	Name Windows shows above the toast.
registerAppId	true	Write the missing AUMID registry half.
shell	auto	auto, or an explicit PowerShell executable.
shellArgs	[]	Extra argv placed before -File.
openUri	dsh://open	Opened when a toast body is clicked.
locale	zh	Built-in message language: zh or en.
attribution	session context	Footer line under the body. Defaults to <project> · <short session id>; tools/verify-live.mjs relabels it so self-test toasts are unmistakable.
iconUri	DSH executable	Icon the AUMID advertises, as a file:// URI.
settleResolvedToasts	true	Re-draw an answered approval/question toast as settled.
escalateAfterSeconds	0	Re-draw a blocking toast louder after this long unanswered. Off by default.
escalateSound	reminder	Sound the escalated redraw uses.
quietWhenFocused	true	Stay silent while the DSH window owns the foreground.
focusPid	the Host's parent	Process the focus gate compares against.
aggregateWindowSeconds	0	Collect a non-blocking burst this long into one summary toast.
progressAfterSeconds	0	Show a progress toast once a turn has run this long.
progressRefreshSeconds	60	How often that toast is refreshed.
notifyOnApproval	true	Approval requests.
notifyOnQuestion	true	Structured questions.
notifyOnError	true	agent/error and api-session/error.
notifyOnAccount	true	Sign-in required, session expired.
notifyOnIdle	false	A turn that ran long enough finished. Opt-in.
notifyOnStall	false	A running turn stopped showing progress. Opt-in.
notifyOnWorkflowEnd	false	A workflow run settled.
includeSubagents	false	Also notify for subagent sessions.
minRunSeconds	20	Shorter turns finish without a toast.
stallSeconds	240	Silence on a running turn before the stall hint.
stallCheckSeconds	15	Watchdog sampling period.
sounds	per category	default, silent, alarm, im, mail, reminder.
durations	per category	short or long.
maxInFlight	3	Concurrent toast processes; the rest queue.
timeoutMs	15000	A toast process outliving this is killed.
selfTest	false	Post one probe toast on activation.

What counts as progress

Only relevant while notifyOnStall is on. The watchdog treats three things as proof that a turn is alive: live assistant tokens (agent/assistant-stream), committed session events (session/event), and status transitions. A single long tool call emits none of them, so the hint is worded as no observable progress rather than as a failure. Raise stallSeconds above your longest legitimate tool call or model wait to keep it quiet.

Verifying a change

Layer	Command	What it proves
Unit	npm test	Pure logic (test/pure.test.mjs): tags, labels, durations, config floors, live volatility, registry parsing
Render	npm test	The browser half renders (test/client.test.mjs): the module registers under its slot key, the page renders in real React without throwing, and every string resolves in both locales
Writes	npm test	The browser half edits (test/client-dom.test.mjs): in a real DOM, a control writes the op the scope expects — {op:'set',path:[field],value} or {op:'unset'} — carrying the revision it read, refusing an invalid draft, and reporting a write the Host declined
Consistency	npm run lint	The defaults, the settings schema, the volatile declarations, and the table above all describe the same keys; the page's styles use theme tokens only
Payloads	npm run verify:dry	Every listener fires and every toast is composed — with nothing shown
Delivery	npm run verify:live	The same through real PowerShell and Windows; every toast is labelled a self-test

npm run check runs syntax, unit, render, lint, and dry payloads together. Live delivery is deliberately separate, because it puts toasts on your desktop on purpose.

The render layer exists because a machine without browser control cannot open the page, and a component that throws blanks its slot entry with nothing but a console line to show for it. It loads lib/client.js against a stand-in module loader, drives the registered component through react-dom/server, and asserts the control count, the values, the read-only state, and that no locale key is echoed back — translate returns the key itself when a dictionary lacks it, so an unflattened key would show up in the markup. Rendering this way needs getServerSnapshot, which the component supplies.

The write layer is separate because rendering and editing fail independently: a control that writes nothing looks identical from the outside. It mounts the page in jsdom, dispatches real events, and asserts the op — shape, path, value, and the revision read at edit time — rather than that a callback fired. It also covers the two silent failure modes: an invalid draft must not be written at all, and a write the Host declined must surface rather than disappear.

Two classes of defect appear only in the live layer: a tag over the 64-character platform ceiling, and the resulting Tag-setting exception that loses the toast outright. Dry mode replaces the renderer process, so anything Windows itself rejects stays invisible to it — which is why the payload layer also asserts the platform's own limits (every tag and group fits the 64-character ceiling).

Troubleshooting

• No toast at all. Check Windows Settings → System → Notifications: notifications must be enabled, and Focus Assist must not be filtering them. Then read the activation trace below: it separates "never activated" from "activated and quiet".
• 0x80073D54 in the log. The AUMID registration is missing and registerAppId is false, or the Start Menu shortcut half is gone. Re-run the DeepSeek Harness installer if the shortcut is missing.
• A toast appears but the click does nothing. The click relies on the dsh: protocol handler installed by the Desktop app; check HKCU\Software\Classes\dsh\shell\open\command. Note that the shell deliberately does nothing while the app has not yet entered a workspace.
• Too many notifications. The shipped default is already the quiet policy; if you turned on notifyOnIdle or notifyOnStall, raise minRunSeconds or stallSeconds, or turn them back off.

Why is it not notifying?

The failure mode of a notification plugin is silence, so activation is traced to %TEMP%\dsh-notify-trace.log ($TMPDIR elsewhere). The trace is bounded, synchronous, and cannot throw into the plugin.

Last trace line	Meaning
none at all	the module never activated
stops before apply finished	activation stopped part-way; the last line names the milestone
apply threw before finishing:	the throw, with its message
apply finished but no event … lines	it is live and quiet — no matching event has arrived
event user-questions/request with no toast	the listener fires and the transport is dropping it

Delete the file to start a clean record; it is not recreated until the next activation.

License

MIT — see LICENSE. The plugin is an independent bundle: it ships no DeepSeek Harness code and depends only on @deepseek-ai/schemastery, which it resolves from its own directory.