Web Application Testing

by anthropics

Web Application Testing is a Quality skill for Claude Code, published by anthropics in skills.

168.6K stars20.1K forkson anthropics/skillsAdded 2026/08/13Repository updated 2026/08/07

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agent-skills

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Install Web Application Testing

Copy Web Application Testing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/anthropics/skills/tree/main/skills/webapp-testing ~/.claude/skills/webapp-testing

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/anthropics/skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/webapp-testing/SKILL.md in anthropics/skills
Installs to: ~/.claude/skills/webapp-testing
Collection: One of 18 skills cataloged from this repository
Category: Quality — 1354 skills

What Web Application Testing does

Web Application Testing verifies and debugs local web applications using Playwright. It supports frontend functional testing, screenshot capture, browser log viewing, and UI automation.

Web Application Testing is cataloged under Quality on DirSkills. Web Application Testing comes from a repository tagged agent-skills.

Documentation

README

Excerpt

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.

Decision Tree: Choosing Your Approach

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Web Application Testing

What else does anthropics publish alongside Web Application Testing?
Web Application Testing is one of 18 skills that DirSkills catalogs from anthropics/skills, the repository it ships in. Its siblings there include Algorithmic Art, Brand Guidelines and Canvas Design. Each one is a separate skill with its own page in this directory, installs the same way Web Application Testing does, and is maintained by anthropics in that same repository. The rest of the collection is listed on the anthropics/skills page.
How does Web Application Testing compare to other Quality skills?
Web Application Testing ranks #6 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Web Application Testing against them. Open each page to compare what they document and how they install.