Browser + QA agent · Open source

Bug-hunting browser agents.

Fagun gives any AI a real browser — to click, crawl, and find real bugs: broken links, console errors, failed requests, form flaws, a11y gaps, security misconfigs.

Works in Claude, Cursor, Codex & more. Chrome installs itself. Token-lean by default.

★ Star on GitHub

fagun — audit live

Install in one line

Nothing to configure.

No Python, no pip — uv brings its own. Chrome auto-installs on first run.

$ uvx fagun install claude-code
// or, inside Claude Code:
/plugin marketplace add mejbaurbahar/fagun
/plugin install fagun@fagun

What it finds

Every crack a real user could fall through.

Broken links

Console / JS errors

Failed requests

Form & validation flaws

Accessibility

Performance

Exposed files & secrets

CORS / headers

Reflected XSS & redirect

Self-healing helpers

Works everywhere

Claude Code Claude Desktop Cursor Codex Antigravity Windsurf Cline VS Code

See it in action

Setup to first bug, on any OS.

Terminal — macOS

One command sets up every AI tool on your machine. Then just type fagun + what to test.