Let Claude Code, Codex or Cursor use your real Chrome, logged in as you. One prompt to set up. Open source, MIT.
Browser Harness connects a language model to a real browser through an editable CDP WebSocket, allowing the agent to perform browser tasks and create reusable helpers when needed. Developers and browser agents use it for browser automation, with an MCP server available for compatible clients. The catalogue entries provide setup instructions and teach coding agents its browser workflow.
Latest release v0.1.13 · 4 Sept 2026
2 files for Codex, OpenCode and Claude Code: browser-harness AGENTS.md, browser-harness CLAUDE.md — 545 tokens loaded in every session.
AGENTS.md A 506 tok CLAUDE.md A 39 tok These files are browser-use/browser-harness's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.