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Best Testing Skills for AI Agents
1265 Testing skills for AI coding assistants — ranked by popularity.
This collection provides targeted skill definitions for AI agents to automate and streamline software testing. Whether you are building interfaces with React, managing Python backends, or testing mobile apps, these tools help your AI assistant execute specific quality assurance tasks. Each skill file—formatted for tools like Claude Code, Codex, and Cursor—gives the agent clear instructions and access to frameworks like Playwright, Appium, and pytest. Developers can use these to delegate repetitive tasks such as verifying UI components, running cross-platform mobile tests, or performing dependency upgrade analysis. By offloading these technical workflows, you enable your agent to act as a specialized testing partner that understands your project structure. Expect practical, code-focused guidance that helps you maintain system stability without manual intervention. These skills are designed for developers who want to integrate automated testing directly into their agent-assisted development lifecycle.
Top Testing skills
webapp-testing
anthropics
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
ui-ux-expert-skill
fercracix33
Technical workflow for implementing accessible React user interfaces with shadcn/ui, Tailwind CSS, and TanStack Query. Includes 6-phase process with mandatory Style Guide compliance, Context7 best practices consultation, Chrome DevTools validation, and WCAG 2.1 AA accessibility standards. Use after Test Agent, Implementer, and Supabase agents complete their work.
skill-creator
anthropics
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
python-testing-patterns
wshobson
Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing testing best practices.
dependency-upgrade
wshobson
Manage major dependency version upgrades with compatibility analysis, staged rollout, and comprehensive testing. Use when upgrading framework versions, updating major dependencies, or managing breaking changes in libraries.
browser-use
browser-use
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, or extract information from web pages.
playwright-mcp
sfc-gh-dflippo
Browser testing, web scraping, and UI validation using Playwright MCP. Use this skill when you need to test Streamlit apps, validate web interfaces, test responsive design, check accessibility, or automate browser interactions through MCP tools.
dev-browser
SawyerHood
Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "test the website", "log into", or any browser interaction request.
vitest
antfu
Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.
accessibility
tech-leads-club
Audit and improve web accessibility following WCAG 2.1 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible".
ios-simulator-skill
conorluddy
21 production-ready scripts for iOS app testing, building, and automation. Provides semantic UI navigation, build automation, accessibility testing, and simulator lifecycle management. Optimized for AI agents with minimal token output.
chrome-devtools
mrgoonie
Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traffic, web scraping, form automation, and JavaScript debugging.
playwright-browser-automation
lackeyjb
Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use when user wants to test websites, automate browser interactions, validate web functionality, or perform any browser-based testing.
test-cases
cexll
This skill should be used when generating comprehensive test cases from PRD documents or user requirements. Triggers when users request test case generation, QA planning, test scenario creation, or need structured test documentation. Produces detailed test cases covering functional, edge case, error handling, and state transition scenarios.
backtesting-frameworks
wshobson
Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.
windows-ui-automation
martinholovsky
Expert in Windows UI Automation (UIA) and Win32 APIs for desktop automation. Specializes in accessible, secure automation of Windows applications including element discovery, input simulation, and process interaction. HIGH-RISK skill requiring strict security controls for system access.
qa-tester
svilupp
Browser automation QA testing skill. Systematically tests web applications for functionality, security, and usability issues. Reports findings by severity (CRITICAL/HIGH/MEDIUM/LOW) with immediate alerts for critical failures.
playwright
BloomBooks
How to make good playwright (e2e) tests for this project.
claude-mobile-ios-testing
krzemienski
Use when testing iOS apps on simulator, capturing screenshots for validation gates, automating UI testing with expo-mcp and xc-mcp, or verifying visual correctness - combines expo-mcp autonomous testing (React Native level) with xc-mcp simulator management (iOS level)
reviewing-code
CaptainCrouton89
Systematically evaluate code changes for security, correctness, performance, and spec alignment. Use when reviewing PRs, assessing code quality, or verifying implementation against requirements.
web-design-guidelines
vercel
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
svelte-expert
Raudbjorn
Expert Svelte/SvelteKit development assistant for building components, utilities, and applications. Use when creating Svelte components, SvelteKit applications, implementing reactive patterns, handling state management, working with stores, transitions, animations, or any Svelte/SvelteKit development task. Includes comprehensive documentation access, code validation with svelte-autofixer, and playground link generation.
wcag-audit-patterns
wshobson
Conduct WCAG 2.2 accessibility audits with automated testing, manual verification, and remediation guidance. Use when auditing websites for accessibility, fixing WCAG violations, or implementing accessible design patterns.
code-coverage-with-gcov
gadievron
Add gcov code coverage instrumentation to C/C++ projects
How to choose a Testing skill
Start by identifying your primary testing environment, such as mobile, web, or backend Python. Review the specific framework dependencies listed in each skill to ensure they match your current stack, such as Playwright for web or Appium for mobile. Check the provided scope: some skills focus on specific UI tasks like accessible React components, while others handle broad processes like dependency version upgrades. Choose skills that align with your immediate task, and evaluate their documented workflows to confirm they handle the specific test patterns your project requires.
More Testing skills
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