# Best agent skills for testing and QA > The best agent skills for testing and QA are Systematic Debugging, TDD and Golang Testing, ranked by GitHub stars; Systematic Debugging leads with 296,071 stars. The list covers 162 agent skills in the appsgit catalog, one entry per repository. ## Key facts | Fact | Value | |---|---| | Question | What are the best agent skills for testing and QA? | | Picks | 10 | | Top pick | Systematic Debugging (296,071 stars) | | Data as of | Oct 7, 2026 | | Canonical URL | https://appsgit.com/best/agent-skills-for-testing-qa | ## Ranked picks - [Systematic Debugging](https://appsgit.com/skills/obra-systematic-debugging) (296,071 stars, MIT, Shell): Systematic Debugging has 296,071 GitHub stars, has 280,800 installs on skills.sh, runs without an API key, works with Claude Code, Codex and Cursor, is written in Shell and was last updated in September 2026. - [TDD](https://appsgit.com/skills/mattpocock-tdd) (278,361 stars, MIT, Shell): TDD has 278,361 GitHub stars, has 1,028,752 installs on skills.sh, runs without an API key, works with Claude Code and Codex, is written in Shell and was last updated in October 2026. - [Golang Testing](https://appsgit.com/skills/affaan-m-golang-testing) (274,402 stars, MIT, JavaScript): Golang Testing has 274,402 GitHub stars, has 3 installs on skills.sh, runs without an API key, works with Claude Code, Codex and Cursor, is written in JavaScript and was last updated in October 2026. - [Skill Creator](https://appsgit.com/skills/anthropics-skill-creator) (179,945 stars, Apache-2.0, Python): Skill Creator has 179,945 GitHub stars, is published by the vendor itself, has 398,688 installs on skills.sh, runs without an API key, works with Claude Code, is written in Python and was last updated in October 2026. - [Next Cache Components Optimizer](https://appsgit.com/skills/vercel-next-cache-components-optimizer) (143,231 stars, MIT, JavaScript): Next Cache Components Optimizer has 143,231 GitHub stars, is published by the vendor itself, runs without an API key, works with Claude Code, is written in JavaScript and was last updated in October 2026. - [iOS Clean](https://appsgit.com/skills/garrytan-ios-clean) (135,577 stars, MIT, TypeScript): iOS Clean has 135,577 GitHub stars, runs without an API key, works with Claude Code, Codex and Cursor, is written in TypeScript and was last updated in October 2026. - [Browser Use](https://appsgit.com/skills/browser-use) (117,307 stars, MIT, Python): Browser Use has 117,307 GitHub stars, is published by the vendor itself, has 96,300 installs on skills.sh, needs an API key or token, works with Claude Code, Codex and Cursor, is written in Python and was last updated in October 2026. - [Surgical Patch](https://appsgit.com/skills/juliusbrussee-surgical-patch) (110,252 stars, Apache-2.0, Go): Surgical Patch has 110,252 GitHub stars, has 84,964 installs on skills.sh, runs without an API key, works with Claude Code, Codex and Cursor, is written in Go and was last updated in October 2026. - [Debugging And Error Recovery](https://appsgit.com/skills/addyosmani-debugging-and-error-recovery) (102,166 stars, MIT, JavaScript): Debugging And Error Recovery has 102,166 GitHub stars, has 825 installs on skills.sh, runs without an API key, works with Claude Code, Codex and Cursor, is written in JavaScript and was last updated in October 2026. - [Mode Creator](https://appsgit.com/skills/thedotmack-mode-creator) (97,272 stars, Apache-2.0, TypeScript): Mode Creator has 97,272 GitHub stars, runs without an API key, works with Claude Code, Codex and Cursor, is written in TypeScript and was last updated in October 2026. ## How this list was made - Candidates: the 162 agent skills in the Testing & QA category on appsgit. - Ranked by GitHub stars (installs on skills.sh break ties), at most one entry per repository so one project cannot fill the list. - The catalog itself only lists skills with a valid SKILL.md, a license and a commit in the last six months, from repositories with 100+ stars or a skills.sh listing. ## FAQ ### Do these agent skills need an API key? 1 of the 10 picks need an API key or token, for example Browser Use; 9 run without one. Each page on appsgit lists the environment variables a agent skill expects. ### Which coding agents work with these skills? Claude Code (all), Codex (8 of 10), Cursor (7 of 10) and OpenCode (6 of 10). The client list comes from each project's published compatibility data; appsgit does not guess it. ### Are any of these agent skills official? Yes: Skill Creator, Next Cache Components Optimizer and Browser Use are published by the vendor themselves. ### How do I install an agent skill? A skill is a folder with a SKILL.md file that you copy into your agent's skills directory, or install from a plugin marketplace when the repository is one. Every skill page on appsgit shows the install command. ## Related questions - [What are the best agent skills for docs and writing?](https://appsgit.com/best/agent-skills-for-docs-writing) - [What are the best agent skills for data analysis?](https://appsgit.com/best/agent-skills-for-data-analysis) - [What are the best agent skills for DevOps and cloud?](https://appsgit.com/best/agent-skills-for-devops-cloud) - [What are the best agent skills for design and frontend?](https://appsgit.com/best/agent-skills-for-design-frontend) - [What are the best agent skills for security?](https://appsgit.com/best/agent-skills-for-security) - [What are the best MCP servers?](https://appsgit.com/best/mcp-servers) - [What are the best MCP servers for Claude Code?](https://appsgit.com/best/mcp-servers-for-claude-code) - [What are the best MCP servers for Cursor?](https://appsgit.com/best/mcp-servers-for-cursor) ## See also - [Testing & QA agent skills](https://appsgit.com/skills/category/testing-qa) - [All agent skills](https://appsgit.com/skills) - [Trending agent skills](https://appsgit.com/skills/trending) - [Official agent skills](https://appsgit.com/skills/official) --- Canonical page: https://appsgit.com/best/agent-skills-for-testing-qa Source: appsgit (https://appsgit.com), the app store for github. 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