browser-harness

About

Connect an LLM directly to your real browser with a thin, editable CDP harness. For browser tasks where you need complete freedom.

One websocket to Chrome, nothing between. The agent writes what's missing during execution. The harness improves itself every run.

Try browser-harness in Browser Use Cloud or paste the setup prompt into your coding agent.

The agent will open chrome://inspect/#remote-debugging. Tick the checkbox so the agent can connect to your browser:

Click Allow when the per-attach popup appears (Chrome 144+):

See agent-workspace/domain-skills/ for example tasks.

Stealth, sub-agents, or headless deployment. Browser Use Cloud free tier: 3 concurrent browsers, proxies,…