Web App Testing

Test and debug your web app in a real browser — screenshots and logs. (For developers.)

Web App Testing is an official Anthropic skill for checking your local web app in a real browser (Playwright). It verifies that features work, captures screenshots, and reads browser logs so you can debug UI behavior — handy while building, but it needs a local dev setup.

What it does

Tests local web apps in a real browser with Playwright.
Captures screenshots and reads browser logs for debugging.
Verifies your frontend actually works as you build.

What's in the download

SKILL.md plus Playwright helper scripts.

How to install (2 minutes)

1Download the .zip and unzip it — you’ll get a folder called webapp-testing.
2In the Claude app: open Settings → Capabilities → Skills, choose Add / Upload, and select the folder (or the .zip).
3In Claude Code: drop the folder into your project’s .claude/skills/ directory, then type /skills to confirm it loaded.
4That’s it — the skill activates on its own when it fits what you’re doing.

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