Rysh AI — Chrome Extension

A browser-integrated AI chat assistant powered by the Anthropic API. Talk to Claude directly from your browser toolbar.

Features

• Dark, polished chat UI accessible from the browser toolbar
• Direct Anthropic API calls (no server proxy)
• Conversation history maintained for the session
• Page context injection (title, URL, selected text)
• Firebase-ready auth stub — swap one file to add Google sign-in

Getting Started

1. Generate icons

cd rysh-chrome-plugin/icons
node generate-icons.js

2. Load the extension in Chrome

1. Open Chrome and navigate to chrome://extensions
2. Enable Developer mode (toggle in the top-right)
3. Click Load unpacked
4. Select the rysh-chrome-plugin/ directory

3. Authorize

On first install, a tab opens automatically asking for your Anthropic API key. Get a key from console.anthropic.com.

Project Structure

rysh-chrome-plugin/
├── manifest.json        Chrome extension manifest (MV3)
├── background.js        Service worker — install handler, message bus
├── popup.html/css/js    Chat interface (380×600px dark UI)
├── auth.html/css/js     API key authorization page
├── authService.js       Firebase-ready auth stub
├── api.js               Anthropic Messages API client
├── storage.js           chrome.storage.local wrapper
└── icons/
    ├── generate-icons.js  Node.js PNG generator (no deps)
    ├── icon16.png
    ├── icon48.png
    └── icon128.png

Auth Architecture

authService.js mirrors the Firebase Auth interface (onAuthStateChanged, signOut, getToken, getCurrentUser). When Firebase is ready:

1. Replace authService.js with a Firebase implementation
2. popup.js and auth.js require no changes

Development

No build step required — the extension runs directly from source using ES modules.

For bundled production builds, add esbuild or Rollup targeting "chrome".

Privacy

• Your API key is stored only in chrome.storage.local on your device
• API calls go directly from your browser to api.anthropic.com
• No data is routed through Rysh servers

License

Proprietary — All rights reserved © Rysh AI