What it is
webapp-testing is an official skill for testing local web applications with Playwright. The source file emphasizes using browser scripts, server lifecycle helpers, screenshots, logs, and real UI assertions.
Why it is useful
Frontend work is easy to fake from source code alone. This skill pushes the agent toward runtime evidence: page loads, selectors, console output, interactions, and screenshots.
Best uses
- Smoke testing a local app after UI changes.
- Debugging broken selectors, forms, layout, or browser console errors.
- Capturing evidence before reporting that a frontend task is done.
Notes
Use it with a clear target URL and expected behavior. For serious flows, include at least one interaction, not just a page load.