Signalight/codex-to-dsh-pet#dsh-codex-pet

A DSH web-GUI pet runtime plugin — one plugin that renders any Codex spritesheet-atlas pet (v1 / v2) as a draggable desktop pet in the DeepSeek Harness web GUI.

It is the runtime half of the codex-to-dsh-pet framework: instead of building each pet into its own plugin bundle, you install this plugin once, then add pets as plain data files — no per-pet code.

The plugin ships one built-in example pet nastya (娜斯佳) — an original character (CC BY-NC 4.0, non-commercial) — so the registry is never empty. See assets/nastya/.

Features

• Renders Codex spritesheet atlases (8 columns × 192×208 cells):
  • v1 (1536×1872, 9 rows) — auto-detected;
  • v2 (1536×2288, 11 rows) — adds 16 mouse-tracking "look" cells.
• Draggable (position persists across restarts), wave-on-hover, jump-on-double-click.
• Live activity poses: idle / waiting / running / review, driven by the conversation state.
• Progress bubble showing the running tool name or the live model text tail.
• Zero per-pet code: the browser half is registry-driven from /api/codex-pet/*.

Install

Recommended — one command (needs pnpm):

# from npm
dsh plugin --profile web add @signalight/dsh-codex-pet

# or straight from GitHub
dsh plugin --profile web add github:Signalight/codex-to-dsh-pet#path:/packages/dsh-codex-pet

Manual route (no pnpm): from the repository root run

.\install-runtime.ps1

This copies the package into ~/.dsh/profiles/node_modules/@signalight/dsh-codex-pet and registers the plugin row in ~/.dsh/profiles/web/cordis.patch.yml. Then:

1. Hard-refresh http://127.0.0.1:3080 (Ctrl+Shift+R) — the DSH profile hot-reloads cordis.patch.yml. If the pet still doesn't show, fully quit and relaunch the DSH desktop app (command-line users can restart dsh web).

Rollback: delete ~/.dsh/profiles/node_modules/@signalight/dsh-codex-pet and restore the .bak next to the patch file.

Add a pet

A pet is a folder holding a pet.json manifest plus one atlas image. Drop it into either source (user pets override built-ins on id collision):

• built-in: packages/dsh-codex-pet/assets/<pet>/
• user: ~/.dsh/pets/<pet>/ (survives plugin updates)

pet.json:

{
  "id": "nastya",
  "displayName": "娜斯佳",
  "description": "娜斯佳 Nastya — original character (CC BY-NC 4.0).",
  "spritesheetPath": "spritesheet.webp",
  "spriteVersionNumber": 2,
  "size": 120,
  "pin": "bottom-right"
}

Only id and spritesheetPath are required. spriteVersionNumber is auto-detected from the image dimensions when omitted; size (px width) and pin (top-left / bottom-right / …) default to 120 and bottom-right.

No manual editing needed: in the DSH settings surface open the «桌宠» section and click 导入桌宠 (webp / png / gif) — the plugin writes the file into ~/.dsh/pets/<name>/, auto-detects the atlas version, and selects the new pet. The pet id comes from the filename (my-pet.webp → my-pet); if that id is already taken the plugin appends a -2 / -3 suffix instead of overwriting the earlier pet (all Codex atlases are named spritesheet.webp, so without this every import would clobber the previous one). Re-importing the same id with the same typed display name updates that pet in place.

Architecture

src/
├── index.js     host half: name/inject/apply, mounts service + routes
├── registry.js  scans assets/* + ~/.dsh/pets/*, normalizes Codex atlases
├── service.js   persisted selection + display config (~/.dsh/codex-pet.json)
├── routes.js    /api/codex-pet/* JSON API + /codex-pet/<id>/* assets
└── client.js    browser half: registry-driven overlay renderer

• Host half registers same-origin routes via the DSH web server (ctx.webServer.register), serving the pet list, state and atlas assets.
• Browser half fetches /api/codex-pet/state, renders the selected pet, mirrors drags back via POST /api/codex-pet/set-config, and seats a settings.section entry («桌宠») that edits the pet through the same API.

API

Endpoint	Method	Purpose
/api/codex-pet/pets	GET	pet registry (list of definitions)
/api/codex-pet/state	GET	selected pet + display config
/api/codex-pet/set-pet	POST	{ petId } — switch pet
/api/codex-pet/set-config	POST	{ size?, pin?, left?, top?, visible? }
/api/codex-pet/set-visible	POST	{ visible }
/api/codex-pet/import?id=<filename>&name=<displayName>	POST	raw image body — import a Codex atlas
/codex-pet/<id>/<file>	GET	pet.json + spritesheet assets

Roadmap

• Settings section («桌宠» in the DSH settings surface: pet selector, show/hide, size, corner pin), backed by the plugin's own API.
• In-GUI import button (upload a Codex atlas → auto-detect → install → select).
• In-GUI preview before import (live canvas frame preview).
• Published to npm (@signalight/dsh-codex-pet) + dsh-plugin GitHub topic.

License

MIT — see the repository root LICENSE.