Agent skills

Testing & QA skills

Read straight from the source repositories, not from submitted listings. Every skill shows what it does, what is inside, where it came from — and whether attention around its source is actually growing.

Toolclaude-code 28,838codex 6,583cursor 4,244copilot 1,341windsurf 73cline 44
CategoryAI & Agents 4,188Data & Analytics 3,152Code Review & Quality 1,857Backend & API 1,737Security 1,624Workflow & Productivity 1,614Documentation 1,361Design & Presentation 1,327Content & Marketing 1,213Testing & QA 1,074DevOps & Cloud 783Databases 735Frontend 623Business & Finance 447Media & Video 349Other 7,916
1,709 found
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revenue-operationsAnalyzes sales pipeline health, revenue forecasting accuracy, and go-to-market efficiency metrics for SaaS revenue optimization.…alirezarezvaniscriptssystematic-debuggingUse when encountering a bug, test failure, or unexpected behavior, before proposing fixesGanyuanRanscriptstooluniverse-image-analysisProduction-ready microscopy image analysis and quantitative imaging data skill for colony morphometry, cell counting…BioTender-maxscriptsuncertainty-and-unitsTrack physical units and propagate measurement uncertainty in scientific calculations using pint and uncertainties. Use for unit…K-Dense-AIwritesscriptsagent-browserBrowser automation CLI for AI agents. Requires Node.js with agent-browser. Use when the user needs to interact with websites…EXboysscriptselevenlabs-agentsBuild conversational AI voice agents on the ElevenLabs platform. Configure agent + tools + knowledge base, integrate SDK (React /…jezwebscriptspaper2htmlConvert an academic paper PDF into a publish-ready, self-contained single-page **project homepage** (a self-contained index.html)…QuZhan51496writesscriptsevent-study-carsComplete methodology for computing publication-quality cumulative abnormal returns with proper event-study test statistics…kennethkhoocyscriptsgoose-graphicsPortable visual skill pack for the Agent Skills ecosystem (Claude Code, Claude Desktop, Claude Cowork, Claude Design, Goose…gooseworks-aiscriptssales-engineerAnalyzes RFP/RFI responses for coverage gaps, builds competitive feature comparison matrices, and plans proof-of-concept (POC)…alirezarezvaniscriptsskillhone-synthesisUse this skill to synthesize closed-form, automatically verifiable benchmark Q/A by exploring a tool environment, building a…Tencentscriptswjs-x-increasing-followerUse when 王建硕 wants to systematically grow his X (Twitter) followers by running numbered, A/B-testable growth experiments and…jianshuoscriptsagent-browserBrowser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling…brycewang-stanfordscriptsagent-browserBrowser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling…countbot-aiscriptsagent-browserBrowser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling…ECNU-ICALKscriptsagent-browserBrowser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling…hAcKlycscriptsplan-a-featureBuilds a feature specification from scratch through a relentless, evidence-based interview that walks the design tree…testdoublewritesscriptsproduct-researchUse when planning and synthesizing product/user research as a method-and-repository discipline — selecting the right method for…alirezarezvaniscriptsrender-brand-identity-revealRender a 'brand identity reveal' video from a config — a single poster frame in a real, softly-lit space (real wall, soft-focus…gooseworks-aiscriptssystematic-debuggingUse when encountering any bug, test failure, or unexpected behavior, before proposing fixesECNU-ICALKscriptssystematic-debuggingRoot-cause route for actual bugs, failing tests, build errors, crashes, stack traces, and unexpected behavior. Do not use for…foryourhealth111-pixelscriptssystematic-debuggingUse when encountering any bug, test failure, or unexpected behavior, before proposing fixesFreedomIntelligencescriptssystematic-debuggingUse when encountering any bug, test failure, or unexpected behavior, before proposing fixesguanyangscriptssystematic-debuggingUse when encountering any bug, test failure, or unexpected behavior, before proposing fixessickn33scriptstesting-visual-regressionDetect visual changes in UI components using screenshot comparison. Use when detecting unintended UI changes or pixel…jeremylongshorewritesscriptschaos-engineeringUse when planning, running, or learning from chaos engineering experiments. Triggers on "chaos experiment", "fault injection"…alirezarezvaniscriptsgenerating-test-reportsGenerate structured test reports with pass/fail rollups, coverage summaries, and test artifacts. Use when the user is asking for…foryourhealth111-pixelwritesscriptsrun-automation-suiteRun local Appium test scripts against Kobiton devices. Guides through app upload, device selection, capability parsing, and local…jeremylongshorewritesscriptsrunning-performance-testsExecute load testing, stress testing, and performance benchmarking. Use when performing specialized testing. Trigger with phrases…jeremylongshorewritesscriptstao-generate-video-reasoning-annotationsMulti-step video annotation pipeline that turns raw videos into Chain-of-Thought training data — multi-level captions, structured…NVIDIAwritesscriptstracking-regression-testsTrack and manage regression test suites across releases. Use when performing specialized testing. Trigger with phrases like…jeremylongshorewritesscriptsx-dm-auto-chatX (Twitter) DM automated chat end-to-end Skill: scan DM inbox to identify pending-reply conversations, read message history…browser-actscriptsagent-browserBrowser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling…melandlabsscriptsanalyzing-test-coverageAnalyze code coverage metrics and identify untested code paths. Use when analyzing untested code or coverage gaps. Trigger with…jeremylongshorewritesscriptsgenerating-test-reportsGenerate comprehensive test reports with metrics, coverage, and visualizations. Use when performing specialized testing. Trigger…jeremylongshorewritesscriptsmanaging-database-testsTest database testing including fixtures, transactions, and rollback management. Use when performing specialized testing. Trigger…jeremylongshorewritesscriptsmanaging-test-environmentsTest provision and manage isolated test environments with configuration and data. Use when performing specialized testing.…jeremylongshorewritesscriptsplan-implementationBuilds a feature implementation plan from an existing feature specification (or equivalent context) through a facilitated team…testdoublewritesscriptsplaywrightUse when the task requires automating a real browser from the terminal (navigation, form filling, snapshots, screenshots, data…foryourhealth111-pixelscriptsrender-3d-product-showcaseAssemble a premium 3D product-showcase ad from a config — four beat clips (an orbiting hero rotation, a macro push-in, a physics…gooseworks-aiscriptsactionbook-web-testRun browser-based web tests against websites using Actionbook CLI. Activate when the user wants to test a website workflow, run…actionbookscriptsautomating-api-testingTest automate API endpoint testing including request generation, validation, and comprehensive test coverage for REST and GraphQL…jeremylongshorewritesscriptsbuild-scenario-testsInspect an unfamiliar repository, turn a focused Markdown behavior scenario into a deterministic test in the repository's native…tamdogoodscriptscapacity-plannerUse when an ops leader (Director of CX, Head of Support, VP Ops, Head of BizOps, Head of IT ops, Head of Finance ops) is sizing…alirezarezvaniscriptschief-customer-officer-advisorChief Customer Officer advisory for startups: retention decomposition (gross retention vs NRR honesty, churn root-cause…alirezarezvaniscriptscompetitor-pr-finderGive it your product URL or description. It finds your top 5 competitors, runs three-track PR research across all of them…Varnan-Techscriptsdeep-researchMulti-round research with explicit methodology, evidence tracking, and citation-tagged synthesis. Trigger on 'deep dive'…opensquillascriptseval-graphicsTurn an eval study's numbers into on-brand, publish-ready figures using the Newsjack chart room (the eval design system), then…elvisunscripts
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How the catalog works
What is an agent skill?

A folder with a SKILL.md inside — instructions, and often scripts and assets, that an AI agent loads when the task matches. Claude Code, Codex, Cursor and Copilot all read the same format, so one skill usually works across them.

Where does this catalog come from?

We read 660 source repositories straight from their file trees rather than from submitted listings — what you see is what is actually published. 98 repositories were rejected because they advertise skills but contain none: link lists, not folders.

Why is there no install counter?

Because install counts live in the registry that serves `npx skills add`, and that is not ours — publishing a number we cannot verify would be worse than showing none. Instead we show where a skill comes from and whether attention around its source is actually growing, measured from our own weekly snapshots.

Do you deduplicate?

Yes, and it matters more than expected. Aggregator repositories republish the same skill in several places — one source carried 6,317 SKILL.md files for 2,001 actual skills. We collapse by folder name and keep the canonical copy, so the catalog counts things, not copies.

Keep going
Collections, ranked →
Which skill collections are moving this week, from our own snapshots.
Open Source Radar →
The repositories behind these skills, watched daily.
The makers →
Who publishes the skills you install.
Startup rankings →
The companies building in the same ecosystem.