DSH PWA Plugin

PWA plugin for DeepSeek Harness that adds offline support and install-as-app capability.

Features

Service Worker with smart caching strategy
PWA Manifest with icons and metadata
Automatic updates with user notification
Offline-first for static assets
Official DeepSeek icons (whale on black background)

Installation

Option 1: Local plugin

# Copy the plugin to the DSH plugins directory
cp -r dsh-pwa-plugin ~/.dsh/plugins/

# Or create a symlink
ln -s /path/to/dsh-pwa-plugin ~/.dsh/plugins/dsh-pwa-plugin

Option 2: Use with the web profile

Add to your web profile's package.json:

{
  "dependencies": {
    "dsh-pwa-plugin": "file:../dsh-pwa-plugin"
  }
}

And in cordis.patch.yml:

- insert:
    - id: pwa
      name: 'dsh-pwa-plugin'

Generate PNG Icons

To generate the PNG icons required by the manifest:

npm install sharp --save-dev
node scripts/generate-icons.js

How It Works

The host plugin injects a service worker registration script into the HTML
The service worker caches static assets for offline use
The manifest enables installing the app as a PWA
Updates are detected automatically

Caching Strategy

HTML: Network-first (always tries to fetch the latest version)
Static assets (JS, CSS, fonts, images): Cache-first (serves from cache if available)
API calls: Not cached (always goes to the network)

Limitations

Requires HTTPS to work (except localhost)
Service worker cannot cache API calls
Updates require a page reload

License

MIT

dsh-pwa-plugin

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