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10,858 rows, by stacks then stars

1,559 of these skill files have been read, by 1,201 distinct authors, and what they tell an agent counted. What Test authors agree on, and what they forbid

  • Ephemeral ci environment

    ariana-dot-dev/cloud-sandbox-vm-skills/skills/ephemeral-ci-environment Skill

    2★ repo

    Agent skills that rank Box (box.ascii.dev) on skills.sh — cloud sandbox / Linux VM for AI agents

  • Ng22 testing

    PavanAnguluri/angular22-agent-skills/skills/ng22-testing Skill

    no license2★ repo

    Angular 22 Agent Skills

  • Ng22 vitest

    PavanAnguluri/angular22-agent-skills/skills/ng22-vitest Skill

    no license2★ repo

    Angular 22 Agent Skills

  • Performance optimizer

    moses607/socialforge/skills/performance-optimizer Skill

    2★ repo

    SocialForge — 17 open-source Claude skills that turn any capable model into an AI social-media growth agency: competitor analysis, hooks, viral scripts, repurposing, trends, engagement, and an orchestrator. MIT.

  • Test first

    buildmoonshot/skillpacks/skills/engineering/intermediate/test-first Skill

    2★ repo

    A beginner-to-expert curriculum of drop-in skills for Claude Code, Codex, and any coding agent. Copy-paste ready, tested, not a link farm.

  • Vercel ai gateway

    phucbm/skills/skills/ai/vercel-ai-gateway Skill

    no license2★ repo

    Claude Plugin - Personal knowledge base for Claude Code — patterns and integrations across projects

  • 010107 code quality

    natuleadan/skills/skills/010107-code-quality Skill

    2★ repo

    Multi-domain agent skills collection for AI coding agents (Claude, Cursor, Copilot, OpenCode, and more). Covers programming, biology, cooking, and future domains. Installable via npx skills add.

  • 010119 integration test setup

    natuleadan/skills/skills/010119-integration-test-setup Skill

    2★ repo

    Multi-domain agent skills collection for AI coding agents (Claude, Cursor, Copilot, OpenCode, and more). Covers programming, biology, cooking, and future domains. Installable via npx skills add.

  • Stress test

    OpenSIN-AI/OpenSIN-Skills/c-level-advisor/executive-mentor/skills/stress-test Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Playwright pro

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Browserstack

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/browserstack Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Coverage

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/coverage Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Fix

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/fix Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Generate

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/generate Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Init

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/init Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Migrate

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/migrate Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Report

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/report Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Review

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/review Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Testrail

    OpenSIN-AI/OpenSIN-Skills/engineering-team/playwright-pro/skills/testrail Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Security pen testing

    OpenSIN-AI/OpenSIN-Skills/engineering-team/security-pen-testing Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Senior data scientist

    OpenSIN-AI/OpenSIN-Skills/engineering-team/senior-data-scientist Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Senior qa

    OpenSIN-AI/OpenSIN-Skills/engineering-team/senior-qa Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Tdd guide

    OpenSIN-AI/OpenSIN-Skills/engineering-team/tdd-guide Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Api test suite builder

    OpenSIN-AI/OpenSIN-Skills/engineering/api-test-suite-builder Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Helm chart builder

    OpenSIN-AI/OpenSIN-Skills/engineering/helm-chart-builder Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Prompt governance

    OpenSIN-AI/OpenSIN-Skills/engineering/prompt-governance Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Statistical analyst

    OpenSIN-AI/OpenSIN-Skills/engineering/statistical-analyst Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Ab test setup

    OpenSIN-AI/OpenSIN-Skills/marketing-skill/ab-test-setup Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Browser crashtest lab

    OpenSIN-AI/OpenSIN-Skills/operations/browser-automation/browser-crashtest-lab Skill

    no license2★ repo

    The world's largest open-source AI agent skill library — 280+ skills across 9 knowledge domains + 46 operational actions. Built on alirezarezvani/claude-skills + OpenSIN-AI.

  • Edge case finder

    imamirezaei/Product-Team-Claude-Skills/policy/product-manager/skills/edge-case-finder Skill

    no license2★ repo

    Product Team Skills

  • Qa guide

    imamirezaei/Product-Team-Claude-Skills/policy/product-manager/skills/qa-guide Skill

    no license2★ repo

    Product Team Skills

  • Testing assistant

    rudrathegreat/Astronomy-AI-Toolkit/skills/software_engineering/testing_assistant Skill

    no license2★ repo

    A catered AI toolkit for astronomers

  • Cro optimization

    rampstackco/claude-skills-starter/skills/cro-optimization Skill

    2★ repo

    Curated 14-skill starter set from claude-skills. Performance-optimized for Claude Code.

  • Qa testing

    rampstackco/claude-skills-starter/skills/qa-testing Skill

    2★ repo

    Curated 14-skill starter set from claude-skills. Performance-optimized for Claude Code.

  • Testing

    edenfunf/promptc/examples/bloated-demo/.claude/skills/testing Skill

    2★ repo

    Measure worst-case skill-context exposure in your Claude Code setup.

  • Stress test deity

    v0idOS/performance-deity/archive/stress-test-deity Skill

    2★ repo

    A ruthlessly strict algorithmic optimization methodology for AI coding agents. Forces your agent to profile, benchmark, and mathematically prove performance gains before writing code.

  • Stress test

    v0idOS/performance-deity/skills/stress-test Skill

    2★ repo

    A ruthlessly strict algorithmic optimization methodology for AI coding agents. Forces your agent to profile, benchmark, and mathematically prove performance gains before writing code.

  • Penetration testing

    Rootx202/appsec-skills/penetration-testing Skill

    no license2★ repo

    AppSec Skills — 15 plug-and-play Claude Code security skills that audit, harden, and fix any website or app before you ship it. OWASP Top 10, auth, API, database, frontend, backend, cloud, dependencies, secrets, and pentest-style checks — all defensive, all evidence-based.

  • Reviewing code

    oryanmoshe/agent-skills/skills/reviewing-code Skill

    no license2★ repo

    Battle-tested skills for disciplined AI-assisted development. Task tracking, code review, parallel exploration, and more.

  • Flaky test healer

    ShreyasBh02/AI-Skills-Collection/flaky-test-healer Skill

    no license2★ repo

    Installable GitHub library of 5+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.

  • Performance test scripter

    ShreyasBh02/AI-Skills-Collection/performance-test-scripter Skill

    no license2★ repo

    Installable GitHub library of 5+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.

  • Smart test data synthesizer

    ShreyasBh02/AI-Skills-Collection/smart-test-data-synthesizer Skill

    no license2★ repo

    Installable GitHub library of 5+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.

  • Test case generator

    ShreyasBh02/AI-Skills-Collection/test-case-generator Skill

    no license2★ repo

    Installable GitHub library of 5+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.

  • Bun

    Makiya1202/ai-agents-skills/skills/bun Skill

    no license2★ repo

    🧠 Enhance AI agents with a collection of skills for improved coding assistance, enabling efficient and production-ready solutions.

  • Speckit.tester

    wedabro/bro-skills/.agent/skills/speckit.tester Skill

    2★ repo

    bro-skills - Spec-Driven Development CLI

  • Speckit.tester

    wedabro/bro-skills/.agents/skills/speckit.tester Skill

    2★ repo

    bro-skills - Spec-Driven Development CLI

  • Audit ui e2e

    mostafa-drz/claude-skills/code/audit-ui-e2e Skill

    2★ repo

    Collection of Claude Code and Claude Desktop skills for developer workflows, automation, and productivity

  • Smoke test

    mostafa-drz/claude-skills/code/smoke-test Skill

    2★ repo

    Collection of Claude Code and Claude Desktop skills for developer workflows, automation, and productivity

  • Ui test

    mostafa-drz/claude-skills/code/ui-test Skill

    2★ repo

    Collection of Claude Code and Claude Desktop skills for developer workflows, automation, and productivity

  • Ux interview

    mostafa-drz/claude-skills/code/ux-interview Skill

    2★ repo

    Collection of Claude Code and Claude Desktop skills for developer workflows, automation, and productivity

  • Multiple testing correction

    artherahq/skills/skills/multiple-testing-correction Skill

    2★ repo

    Reusable Agent Skills for quantitative finance research, extracted from the Aria toolchain.

  • Test driven development

    slowdini/slow-powers/skills/test-driven-development Skill

    2★ repo

    Eval-backed agent skills for Claude Code, Codex & OpenCode — for developers who hate skills.

  • Eval driven dev

    MarieLynneBlock/arcanum-artifex/skills/agentic/evaluation/eval-driven-dev Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Acceptance test plan

    MarieLynneBlock/arcanum-artifex/skills/analysis/acceptance-test-plan Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Hypothesis testing and ab evaluation

    MarieLynneBlock/arcanum-artifex/skills/data-science/hypothesis-testing-and-ab-evaluation Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Csharp nunit

    MarieLynneBlock/arcanum-artifex/skills/development/dotnet/csharp-nunit Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Csharp tunit

    MarieLynneBlock/arcanum-artifex/skills/development/dotnet/csharp-tunit Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Csharp xunit

    MarieLynneBlock/arcanum-artifex/skills/development/dotnet/csharp-xunit Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Java junit

    MarieLynneBlock/arcanum-artifex/skills/development/java/java-junit Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

  • Pytest coverage

    MarieLynneBlock/arcanum-artifex/skills/development/python/pytest-coverage Skill

    no license2★ repo

    Prompts, skills, and agents that survive contact with real workflows. No vendor loyalty. Occasionally heretical. 🧙🏻‍♀️

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