AI agent tools (experimental). Let an agent on your computer — Claude Code, Cursor, Codex, VS Code and other MCP clients — manage your rules. Off by default; enable in Settings → MCP. The connection is local only: the extension connects to ws://127.0.0.1:8767, served by the user-js-css-mcp server your agent starts. Nothing leaves your machine; both sides verify a shared secret. Turn it off with the same switch. Server: https://www.npmjs.com/package/user-js-css-mcp