Chrome CDP

Lightweight Chrome DevTools Protocol CLI. Connects directly via WebSocket, does not need Puppeteer, and works well with large tab counts.

Prerequisites

• Chrome (or Chromium, Brave, Edge, Vivaldi) with remote debugging enabled: open chrome://inspect/#remote-debugging and toggle the switch
• Node.js 22+ (uses built-in WebSocket)
• No Python or pip packages are required
• No npm install step is required
• If your browser's DevToolsActivePort is in a non-standard location, set CDP_PORT_FILE to its full path

Quick setup

1. Open Chrome and keep it running.
2. Open chrome://inspect/#remote-debugging.
3. Turn on remote debugging.
4. Keep the browser open while using this skill.
5. Run {baseDir}/scripts/cdp.mjs list to confirm that tabs are visible.