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browser-harness

browser-use/browser-harnessPlugin

Open-source browser agent driven via CDP — direct browser control, 79K stars, YC W25. browser-harness gives Claude Code direct, low-level control of a real Chrome browser via the Chrome DevTools Protocol. Coordinate-level clicks pass through iframes, shadow DOM, and cross-origin frames at the compositor level — no selector hunting, no Playwright wrappers. Connects to a long-running Browser Use Cloud or local browser session, so logins persist across runs. Highlights: - Screenshot-first workflow: capture → read pixel → click_at_xy → re-capture to verify - Bulk HTTP fetch helper for static pages (no browser overhead) - Raw CDP escape hatch for anything helpers don’t cover - Interaction skills for dialogs, dropdowns, iframes, shadow DOM, file uploads, cross-origin frames - Remote browsers via Browser Use Cloud — share a live URL with a human when login/CAPTCHA blocks the agent

Scanned · 5 to knowPluginSource: Anthropic community marketplace
18,861 stars Updated today License MIT
94popular

Why this score

Stars30/35
Usage (forks)14/15
Upkeep25/25
License15/15
Owner history10/10

Popularity score: 94/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank

Security

Scanned Oct 22, 2026 at commit f5eaf904b221, with Cisco's open-source skill-scanner.

What its code does:

Web addresses in its code:

And 15 more.

These are the sites named in the code, so it's where your data could go. It isn't a complete list: code can build addresses while it runs, and a few of these may be links rather than calls. Whatever you send also goes to the AI model you use.

A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan

Alternatives

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