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1,452 of these skill files have been read, by 964 distinct authors, and what they tell an agent counted. What Test authors agree on, and what they forbid

  • Formatter

    RudrenduPaul/skillguard/examples/skill-set-clean/formatter Skill

    1★ repo

    Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.

  • Greeter

    RudrenduPaul/skillguard/examples/skill-set-clean/greeter Skill

    1★ repo

    Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.

  • Report uploader

    RudrenduPaul/skillguard/examples/skill-set-cross-privilege/report-uploader Skill

    1★ repo

    Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.

  • Vault reader

    RudrenduPaul/skillguard/examples/skill-set-cross-privilege/vault-reader Skill

    1★ repo

    Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.

  • Typosquat skill

    RudrenduPaul/skillguard/examples/typosquat-skill Skill

    1★ repo

    Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.

  • Bdd acceptance tests

    yigityildiz0/universal-ai-skill-library/skills/common/bdd-acceptance-tests Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Behavior preservation checker

    yigityildiz0/universal-ai-skill-library/skills/common/behavior-preservation-checker Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Browser testing with devtools

    yigityildiz0/universal-ai-skill-library/skills/common/browser-testing-with-devtools Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Bug reproduction test generator

    yigityildiz0/universal-ai-skill-library/skills/common/bug-reproduction-test-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Code coverage

    yigityildiz0/universal-ai-skill-library/skills/common/code-coverage Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Code translation

    yigityildiz0/universal-ai-skill-library/skills/common/code-translation Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Directed test input generator

    yigityildiz0/universal-ai-skill-library/skills/common/directed-test-input-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • E2e testing automation

    yigityildiz0/universal-ai-skill-library/skills/common/e2e-testing-automation Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Edge case generator

    yigityildiz0/universal-ai-skill-library/skills/common/edge-case-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Flaky test detector

    yigityildiz0/universal-ai-skill-library/skills/common/flaky-test-detector Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Fuzzing input generator

    yigityildiz0/universal-ai-skill-library/skills/common/fuzzing-input-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Integration test generator

    yigityildiz0/universal-ai-skill-library/skills/common/integration-test-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Metamorphic test generator

    yigityildiz0/universal-ai-skill-library/skills/common/metamorphic-test-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Mocks fixtures

    yigityildiz0/universal-ai-skill-library/skills/common/mocks-fixtures Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Mutation testing

    yigityildiz0/universal-ai-skill-library/skills/common/mutation-testing Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Performance testing

    yigityildiz0/universal-ai-skill-library/skills/common/performance-testing Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Playwright best practices

    yigityildiz0/universal-ai-skill-library/skills/common/playwright-best-practices Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Playwright

    yigityildiz0/universal-ai-skill-library/skills/common/playwright Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Property based test generator

    yigityildiz0/universal-ai-skill-library/skills/common/property-based-test-generator Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Test cases

    yigityildiz0/universal-ai-skill-library/skills/common/test-cases Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Test driven development

    yigityildiz0/universal-ai-skill-library/skills/common/test-driven-development Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Test structure

    yigityildiz0/universal-ai-skill-library/skills/common/test-structure Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Test suite prioritizer

    yigityildiz0/universal-ai-skill-library/skills/common/test-suite-prioritizer Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Test writer

    yigityildiz0/universal-ai-skill-library/skills/common/test-writer Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Testing review

    yigityildiz0/universal-ai-skill-library/skills/common/testing-review Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Unit tests

    yigityildiz0/universal-ai-skill-library/skills/common/unit-tests Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Webapp testing

    yigityildiz0/universal-ai-skill-library/skills/common/webapp-testing Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Playwright interactive

    yigityildiz0/universal-ai-skill-library/skills/platforms/codex/playwright-interactive Skill

    23 days old1★ repo

    531 searchable AI Agent Skills for Claude Code, OpenAI Codex, and OpenCode — EN/TR catalog, platform and risk notes, direct ZIPs, and curated bundles.

  • Evidence coverage

    Hash-7777/Hash-Medical-Reasearch-Agent-Skills/skills/evidence-coverage Skill

    28 days old1★ repo

    Drop-in agent skills that make an AI appraise medical literature like a reviewer — grade every citation against its source, run reproducible PRISMA searches, pool studies safely, and defend RAG against prompt injection. Framework-agnostic, MIT.

  • Tdd

    M0rtalPhe0nix/dotfiles/.agents/skills/tdd Skill

    24 days old1★ repo

    Opinionated workstation setup for Apple Silicon macOS and Debian or Ubuntu desktops.

  • Agentic refactor

    jpbaking/agentic-tests/skills/shared/agentic-refactor Skill

    25 days old1★ repo

    Lock down your code, refactor without fear: behavior-locking unit tests, mutation checks, and frozen-suite refactoring as portable Agent Skills for any coding agent

  • Agentic test clean

    jpbaking/agentic-tests/skills/shared/agentic-test-clean Skill

    25 days old1★ repo

    Lock down your code, refactor without fear: behavior-locking unit tests, mutation checks, and frozen-suite refactoring as portable Agent Skills for any coding agent

  • Agentic test update

    jpbaking/agentic-tests/skills/shared/agentic-test-update Skill

    25 days old1★ repo

    Lock down your code, refactor without fear: behavior-locking unit tests, mutation checks, and frozen-suite refactoring as portable Agent Skills for any coding agent

  • Agentic unit test

    jpbaking/agentic-tests/skills/shared/agentic-unit-test Skill

    25 days old1★ repo

    Lock down your code, refactor without fear: behavior-locking unit tests, mutation checks, and frozen-suite refactoring as portable Agent Skills for any coding agent

  • Vue testing best practices

    JunfengRan/dev-env/skills/vue-testing-best-practices Skill

    18 days old1★ repo

    Cursor agent workflow pack: Spec state machine, ContextPack, and deterministic gates for deep research.

  • Mcp testing

    batteryshark/skill-tap/skills/development/mcp/mcp-testing Skill

    1★ repo

    Portable, reusable skills for agents and everyday workflows. Clank responsibly.

  • Tdd

    mhrsdev/AI-Agent-Skills-Library/organized-skills/code-quality-testing/mattpocock-skills/skills/engineering/tdd Skill

    1★ repo

    A curated library of 124 AI agent skills organized into 10 categories, with model-specific versions for Claude, GPT-5.5, GPT-5.4 and earlier, GLM, and DeepSeek.

  • Migrate to shoehorn

    mhrsdev/AI-Agent-Skills-Library/organized-skills/code-quality-testing/mattpocock-skills/skills/misc/migrate-to-shoehorn Skill

    1★ repo

    A curated library of 124 AI agent skills organized into 10 categories, with model-specific versions for Claude, GPT-5.5, GPT-5.4 and earlier, GLM, and DeepSeek.

  • Migrate to shoehorn

    mhrsdev/AI-Agent-Skills-Library/organized-skills/code-quality-testing/migrate-to-shoehorn Skill

    1★ repo

    A curated library of 124 AI agent skills organized into 10 categories, with model-specific versions for Claude, GPT-5.5, GPT-5.4 and earlier, GLM, and DeepSeek.

  • Tdd

    mhrsdev/AI-Agent-Skills-Library/organized-skills/code-quality-testing/tdd Skill

    1★ repo

    A curated library of 124 AI agent skills organized into 10 categories, with model-specific versions for Claude, GPT-5.5, GPT-5.4 and earlier, GLM, and DeepSeek.

  • Nestjs testing

    dkmqflx/nestjs-best-practices-plugin/plugins/nestjs-best-practices/skills/nestjs-testing Skill

    1★ repo

    Claude Code plugin: 12 NestJS best-practice skills (90 rules) grounded in the official NestJS docs

  • Add sample data

    LeonardSEO/power-platform-skills-codex/plugins/power-pages/skills/add-sample-data Skill

    18 days old1★ repo

    Unofficial Codex adaptation of Microsoft Power Platform Skills with telemetry hard-disabled and automated upstream sync.

  • Test site

    LeonardSEO/power-platform-skills-codex/plugins/power-pages/skills/test-site Skill

    18 days old1★ repo

    Unofficial Codex adaptation of Microsoft Power Platform Skills with telemetry hard-disabled and automated upstream sync.

  • Skill

    mohamedzhioua/proofguard/deferred/test-quality-guard/skill Skill

    1★ repo

    Kill-tested guard skills for AI coding agents , self-invoking quality gates that catch AI failure modes in security, tests, docs, dependencies, and diffs before the agent says "done." Works with Claude Code, Codex, and Cursor.

  • Docs drift guard

    mohamedzhioua/proofguard/skills/docs-drift-guard Skill

    1★ repo

    Kill-tested guard skills for AI coding agents , self-invoking quality gates that catch AI failure modes in security, tests, docs, dependencies, and diffs before the agent says "done." Works with Claude Code, Codex, and Cursor.

  • Python ci

    Paldom/python-skills/skills/python-ci Skill

    1★ repo

    Agent Skills and hooks for maintaining high-quality open-source Python packages - an agentic engineering setup covering linting, testing, packaging, releases, and CI quality gates.

  • Python testing

    Paldom/python-skills/skills/python-testing Skill

    1★ repo

    Agent Skills and hooks for maintaining high-quality open-source Python packages - an agentic engineering setup covering linting, testing, packaging, releases, and CI quality gates.

  • Cheapest discriminating test

    ralfyishere/piensalo/micro-skills/cheapest-discriminating-test Skill

    29 days old1★ repo

    PIÉNSALO is the open artificial cortex for AI—reduce context tokens, verify response quality, expand when needed, and safely fall back.

  • Analytics

    cskwork/supermarketer-skill/vendor/marketingskills/skills/analytics Skill

    29 days old1★ repo

    Evidence-grounded product marketing and creative production agent skill — spec and starter scaffold

  • Laravel testing

    noppu-labs/ai-toolkit/laravel/skills/laravel-testing Skill

    1★ repo

    Toolkit for agentic development of Laravel & React apps

  • Laravel validation

    noppu-labs/ai-toolkit/laravel/skills/laravel-validation Skill

    1★ repo

    Toolkit for agentic development of Laravel & React apps

  • Rig task

    agent-rig/rig/skills/rig-task Skill

    19 days old1★ repo

    Copy-in kit of config-driven agent skills, agents, and CI templates — native to Claude Code and adaptable to any AGENTS.md-reading agent.

  • Code reviewer

    yinyoudexing/skill-compass/examples/demo-skills/code-reviewer Skill

    19 days old1★ repo

    Local-first personal launchpad and public store for Agent Skills on macOS

  • Assumption mapper

    Abhillashjadhav/PM-agent-OS/.claude/skills/assumption-mapper Skill

    no license1★ repo

    Evidence-aware product-management skills and reviewer agents for discovery, strategy, build, launch, and iteration.

  • Failure to eval capture

    Abhillashjadhav/PM-agent-OS/.claude/skills/failure-to-eval-capture Skill

    no license1★ repo

    Evidence-aware product-management skills and reviewer agents for discovery, strategy, build, launch, and iteration.