Compatibility Testing

This one automates cross-browser and cross-device testing, running your tests in parallel across Chrome, Firefox, Safari, and Edge, plus mobile viewports. It uses Playwright for local testing and integrates with BrowserStack or Sauce Labs when you need real devices. The qe-visual-tester agent catches visual differences across platforms automatically. Use it before releases, after layout changes, or when validating responsive design. The real value is cutting 10 hours of manual cross-browser checking down to 15 minutes of parallel execution. Focus your matrix on the browsers your analytics show people actually use, not every possible combination.

Install to Claude Code

npx -y skills add proffesor-for-testing/agentic-qe --skill compatibility-testing --agent claude-code