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 29,139codex 4,760cursor 3,079copilot 978windsurf 55cline 34
CategoryWorkflow & Productivity 4,987AI & Agents 3,033Data & Analytics 2,347Code Review & Quality 1,377Backend & API 1,243Security 1,197Design & Presentation 1,129Documentation 967Content & Marketing 917Testing & QA 777DevOps & Cloud 576Databases 550Frontend 469Business & Finance 328Media & Video 258Other 9,845
1,735 found
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eval-graphicsTurn an eval study's numbers into on-brand, publish-ready figures using the Newsjack chart room (the eval design system), then…elvisunscriptsdnaspFull reimplementation of DnaSP 6 for population genetics analysis of aligned DNA sequences. Covers nucleotide diversity…BioTender-maxscriptshtml-summaryConvert a stakeholder summary markdown file into a single self-contained HTML executive report — bottom line and decision asks up…testdoublewritesscriptsplaywrightUse when the task requires automating a real browser from the terminal (navigation, form filling, snapshots, screenshots, data…Haohao-endscriptsproduct-decision-agent中文产品决策 Agent。用于需求优先级、Roadmap、增长、留存、运营、数据异常、A/B Test、项目延期和跨团队协作；先判断事实、阶段、核心阻塞与主导机制，再给出下一步、停止清单和切换条件。默认中文，不引用原文或讲历史。sickn33scriptsqa-test-plannerGenerate comprehensive test plans, manual test cases, regression test suites, and bug reports for QA engineers. Includes Figma…softaworksscriptsrunning-mutation-testsExecute mutation testing to evaluate test suite effectiveness. Use when performing specialized testing. Trigger with phrases like…jeremylongshorewritesscriptssenior-qaGenerates unit tests, integration tests, and E2E tests for React/Next.js applications. Scans components to create Jest + React…alirezarezvaniscriptssplitting-datasetsSplit datasets into training, validation, and test partitions with the right stratification and temporal rules. Use as a narrow…foryourhealth111-pixelwritesscriptsswe-loopUse when the user has a coding prompt — a feature, bug fix, or refactor — and wants it implemented end to end by a self-checking…gaasherscriptsworkspace-apiCreate, list, update, delete, and clean up workspaces via the daemon HTTP API at $FRIDAYD_URL. Use when the user asks to create…friday-platformscriptsbootstrap-iosBootstrap agents for iOS, iPadOS, macOS, Swift, SwiftUI, SwiftData/Core Data, Swift Testing, Xcode build/test/debug, Simulator…RayFernando1337scriptsbrowser-automationUse when the user asks to automate browser tasks, scrape websites, fill forms, capture screenshots, extract structured data from…alirezarezvaniscriptsiterative-plan-reviewSharpens and stress-tests an existing plan file through multiple codebase-grounded review passes, editing it in place and…testdoublewritesscriptslocal-vaultBuild and query a local Markdown knowledge base ("vault"). TWO functions — (1) CONVERT raw files (PDF, Word/docx…genli-aiscriptsprompt-engineer-toolkitTurns marketing prompts into tested, versioned production assets: A/B prompt evaluation against structured test cases, immutable…alirezarezvaniscriptsproviding-performance-optimization-adviceProduce a prioritized performance-optimization roadmap across frontend, backend, and infrastructure. Use as an explicit/manual…foryourhealth111-pixelwritesscriptsrender-mosaic-grid-revealRender a 'mosaic-grid-reveal' video from a config — a real-DOM FULL-BLEED N×N mosaic of real product tiles that pops in one tile…gooseworks-aiscriptssenior-prompt-engineerUse when the user asks to optimize prompts, design prompt templates, evaluate LLM outputs with an eval set, measure RAG retrieval…alirezarezvaniscriptsstatistical-analysisStatistical analysis toolkit. Hypothesis tests (t-test, ANOVA, chi-square), regression, correlation, Bayesian stats, power…foryourhealth111-pixelscriptsstatistical-analysisGuided statistical analysis for research data - test selection, assumption checking, effect sizes, power analysis, Bayesian…K-Dense-AIscriptsstatistical-analysisGuided statistical analysis with test selection and reporting. Use when you need help choosing appropriate tests for your data…LeonChaoXscriptsvid-motion-graphicsGenerates motion graphics videos (MP4) from a content brief. Multi-scene HTML/CSS animations rendered frame-by-frame in headless…Varnan-Techscriptszotero-obsidian-bridgeUse this skill when papers are collected in Zotero but the user wants detailed reading notes, project-linked literature…brycewang-stanfordscriptsamc-run-sample-calibrationRun end-to-end calibration on the shipped sample dataset (sdg_08_2_sample_data_010926.zip) against a running AMC microservice.…NVIDIAscriptsapi-design-principlesMaster REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers and…sickn33scriptscrabbox-setupScaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to…AI-Builder-Clubscriptsgenerating-test-doublesGenerate mocks, stubs, spies, and fakes for dependency isolation. Use when creating mocks, stubs, or test isolation fixtures.…jeremylongshorewritesscriptshyperframes-video-compositionProvider-independent production workflow for AI agents assembling generated or source media into HyperFrames HTML/CSS/JS videos.…calesthioscriptslanding-page-generatorGenerates high-converting landing pages as complete Next.js/React (TSX) components with Tailwind CSS. Creates hero sections…alirezarezvaniscriptsplan-loopUse when the user has a coding or engineering prompt and wants it refined into a detailed, executable plan before any code is…gaasherscriptsrender-model-comparison-gridRender a 'model comparison grid' video from a config — a fal-style "same prompt, N contenders" showcase — a dark real-DOM stage…gooseworks-aiscriptsrender-photo-grid-cardRender a 'photo-grid promo card' video from a config — a real-DOM card with a FIXED header/footer and a CONTINUOUSLY SCROLLING…gooseworks-aiscriptstddWrite code through a disciplined, BDD-framed Test-Driven Development loop: build a behavior test list, then drive each behavior…testdoublewritesscriptsvid-product-launchGenerates a cinematic product launch video (MP4) from a product description and launch context. 5-section narrative arc — Tease…Varnan-Techscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…anthropicsscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…brycewang-stanfordscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…composio-communityscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…ComposioHQscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…davepoonscriptswebapp-testingToolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality…Prat011scriptswrdsConnect to and query WRDS (Wharton Research Data Services) from any research project. Use this skill whenever the user needs to…kennethkhoocyscriptsblue-teamUse when the user has concrete failing cases in code or a guardrail/classifier/filter/prompt/API they own — a red-team failure…gaasherscriptsgenerating-test-dataGenerate realistic test data including edge cases and boundary conditions. Use when creating realistic fixtures or edge case test…jeremylongshorewritesscriptsidea-refineRefines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still…addyosmaniscriptsidea-refineRefines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still…sickn33scriptsoptimize-loopUse when the user wants to iteratively improve an artifact under a hard correctness bound while minimizing a measured cost —…gaasherscriptsplaywright-skillComplete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms…lackeyjbscripts
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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.