Webapp Testing

composiohq/awesome-claude-skillsOfficial

This is a practical wrapper around Playwright for testing local webapps without wrestling with server lifecycle management yourself. The with_server.py helper starts your dev servers, waits for them to be ready, runs your test script, then tears everything down. It handles multi-server setups too, like when you need both a backend and frontend running. The documentation emphasizes a reconnaissance-then-action pattern: navigate, wait for networkidle, screenshot or inspect the DOM, then act on what you found. The scripts are intentionally designed as black boxes you call with help flags rather than reading their source, which keeps your context window clean. Good for anyone who writes Playwright tests and is tired of the boilerplate around starting servers.

skills.sh installs: 4.9K
GitHub stars: 79.2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add composiohq/awesome-claude-skills --skill webapp-testing --agent claude-code

Installs into .claude/skills of the current project.

Files

Web Application Testing

To test local web applications, write native Python Playwright scripts.

Helper Scripts Available:

scripts/with_server.py - Manages server lifecycle (supports multiple servers)

Always run scripts with --help first to see usage. DO NOT read the source until you try running the script first and find that a customized solution is abslutely necessary. These scripts can be very large and thus pollute your context window. They exist to be called directly as black-box scripts rather than ingested into your context window.