DeepSeek Harness Desktop Pro

A Cordis plugin and a Tauri desktop shell for DeepSeek Harness (dsh). The plugin adds desktop notifications for pending interactions, an opt-in screen_capture model tool, a multi-agent tiling canvas, a desk-pet companion window, and a desktop settings section. The shell runs dsh --profile web natively with tray controls.

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What it does

Capability	Side	Notes
Interaction notifications	client	Subscribes to the sessions store; fires a browser desktop notification when a session waits on an approval, question, or plan review. Click opens that session.
screen_capture model tool	host	Captures the primary display and commits the screenshot into the conversation as an image attachment. Disabled by default — see Consent.
Multi-agent tiling canvas	client	A conversation.view tab rendering a live, read-only grid of sessions and sub-agents from the sessions store.
Desk pet	client	A floating companion window (cat / robot / whale) driven by a state engine that derives pet state (idle / thinking / working / alert / success) from live sessions. Ships a custom navigation icon in the dsh nav bar.
Desktop settings	client	A settings section for pet preferences, window skins (frosted / anime / cyberpunk / space presets, custom uploads, blur & dim tuning), and about / update info.
Native shell	app	Tauri 2.0 app that starts dsh --profile web, embeds the local Web UI, pins in-app directory browsing, and provides tray controls with a recent-sessions menu and update checks.

How it plugs in

• The package declares a dsh.bundle manifest (object form: { "patch": "./cordis.patch.yml" }) — this is what dsh recognizes as an installable plugin. dsh.client declares the web platform and the @deepseek-ai/* runtime packages it injects.
• Host side registers the screen_capture model tool only.
• Client side reads the sessions store and the question/requested interaction stream (via the PendingWait.answer channel) — it never registers a second ctx.userQuestions provider, so it works against the published runtime with no slot conflicts.
• The client bundle is a single file wrapped in the window.__ModuleLoader__.load({ id, factory }) handshake (see build.mjs).

Install

The plugin ships as @mixian/dsh-desktop-plugin with a dual-face Cordis bundle (dsh.bundle + dsh.client). Mount it with either mechanism:

# via a profile (recommended)
dsh plugin --profile web add @mixian/dsh-desktop-plugin

# from a source checkout
dsh plugin --profile web add ./packages/dsh-desktop-plugin

# or as a one-off overlay (no install)
dsh web --patch ./packages/dsh-desktop-plugin/cordis.patch.yml

Consent

screen_capture exposes the operator's whole display. It is not registered unless screenCapture: true is set explicitly in the profile patch:

# ~/.dsh/profiles/web/cordis.patch.yml
- id: dsh-desktop-plugin
  config:
    screenCapture: true   # opt in: registers the screen_capture tool

The captured image is always surfaced back into the conversation for transparency — it is never silently injected.

Run the desktop app

pnpm install
pnpm dev:app        # tauri dev
pnpm tauri build    # production bundles

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