Get it
npx skills add https://github.com/anthropics/skills --skill webapp-testing
Run it in your project folder. Needs Node.js. Installs for Claude Code, Cursor, Codex and other tools that read skills.
How to use it
- Download the skill.
- Put its folder (with SKILL.md inside) in .claude/skills/my-skill/ for just this project, or in ~/.claude/skills/ for every project.
- Restart your tool and ask for what the skill does. It loads on its own when it fits.
Test local web apps with Playwright: screenshots, logs and UI checks.