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12 skills · 5 publishers

Claude skills for testing

Test-driven development, end-to-end testing and browser automation skills, so Claude proves its code works instead of claiming it does.

The best Claude skills for testing

  1. 1

    Agent Browser

    Vercel 46k

    Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web…

    npx skills add vercel-labs/agent-browser --skill agent-browser
  2. 2

    TDD

    Matt Pocock 313k

    Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-green-refactor", or wants integration tests.

    npx skills add mattpocock/skills --skill tdd
  3. 3

    Test Driven Development

    Jesse Vincent 312k

    Use when implementing any feature or bugfix, before writing implementation code

    npx skills add obra/superpowers --skill test-driven-development

All 12 testing skills

12 skills

Agent BrowserTop pick

Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots…

Testing & BrowserVercel46k

TDDTop pick

Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-green-refactor", or wants integration tests.

Testing & BrowserMatt Pocock313k

Test Driven Development

Use when implementing any feature or bugfix, before writing implementation code

Testing & BrowserJesse Vincent312k

Webapp Testing

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots…

Testing & BrowserAnthropic187k

Backtesting Frameworks

Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms…

Testing & BrowserSeth Hobson42k

Bats Testing Patterns

Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring test-driven development…

Testing & BrowserSeth Hobson42k

E2E Testing Patterns

Master end-to-end testing with Playwright and Cypress to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E…

Testing & BrowserSeth Hobson42k

Javascript Testing Patterns

Implement comprehensive testing strategies using Jest, Vitest, and Testing Library for unit tests, integration tests, and end-to-end testing with mocking, fixtures, and…

Testing & BrowserSeth Hobson42k

Python Testing Patterns

Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing…

Testing & BrowserSeth Hobson42k

Screen Reader Testing

Test web applications with screen readers including VoiceOver, NVDA, and JAWS. Use when validating screen reader compatibility, debugging accessibility issues, or ensuring…

Testing & BrowserSeth Hobson42k

Temporal Python Testing

Test Temporal workflows with pytest, time-skipping, and mocking strategies. Covers unit testing, integration testing, replay testing, and local development setup. Use when…

Testing & BrowserSeth Hobson42k

Web3 Testing

Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking. Use when testing Solidity contracts, setting up blockchain…

Testing & BrowserSeth Hobson42k

About these testing skills

The quickest way to trust AI-written code is to make it write the tests first. These skills enforce red-green-refactor, set up Playwright, and drive a real browser to check that pages behave.

Pair them with a coding-workflow skill and Claude will test, debug and verify as part of every change.

This page collects every skill in the directory that covers testing: 12 from 5 publishers, including official skills from Vercel and Anthropic. Each one links back to its original GitHub repository, so you always get the author's latest version.

Publishers on this page

Questions about Claude skills for testing

What is the best Claude skill for testing?

Our top pick is Agent Browser by Vercel, from a repository with 46k GitHub stars. TDD and Test Driven Development round out the top three. Skills are ranked by the popularity of their source repository, with hand-picked favorites first, and official skills from Vercel and Anthropic carry a badge.

How do I install a Claude skill for testing?

Open a skill's page and run its install command in your project folder, for example npx skills add vercel-labs/agent-browser --skill agent-browser. You can also download any skill as a ZIP and add it to Claude Code or upload it to the Claude app.

The install guide walks through every method.

Are Claude skills for testing free?

Yes. All 12 skills on this page are open source and free to use, and most are MIT licensed. You need a Claude plan that supports skills, or a coding agent that reads SKILL.md files.

Do these skills work in Claude Code and the Claude app?

Yes. A skill is a folder with a SKILL.md file, and the same folder works in Claude Code, the Claude desktop and web apps (on paid plans with code execution turned on) and the Claude API. Many also work in other agents that support the Agent Skills format, such as Cursor and OpenAI Codex. Skills that ship scripts need somewhere Claude can run code.

How many Claude skills for testing are there?

We list 12 from 5 publishers, last updated November 4, 2026. The list refreshes from GitHub as publishers release new skills.

Related use cases

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