Agent Skill
Web App Testing
Test local web applications with Playwright using rendered-state reconnaissance, browser logs, screenshots, and repeatable interaction scripts.
What is Web App Testing?
Web App Testing is Anthropic's browser QA skill for local applications. It favors small native Playwright scripts, manages development servers through a helper, waits for dynamic rendering, and uses screenshots, DOM inspection, and console evidence before executing assertions or interactions.
Key capabilities
Managed test servers
Runs frontend and backend services around a Playwright script without embedding lifecycle code in every test.
Rendered-state debugging
Waits for the live application, captures screenshots and logs, then acts through selectors discovered from the rendered DOM.
Use cases
Verify frontend workflows
Exercise navigation, forms, controls, and responsive states against a running local application.
Debug UI regressions
Combine screenshots, DOM inspection, and browser logs to locate failures in rendered behavior.
Compatibility
- Python
- Playwright Chromium