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

• 481

  Data analysis

  Marazii/research-co-pilot/skills/data-analysis · Skill

  9★ repo

  Comprehensive research co-pilot for Claude Code and claude.ai — 14 skills covering literature review, methodology, ethics review, data analysis, qualitative coding, brainstorming, manuscript drafting, replication design, grant writing, talk building, citations, survey design, and peer review. A peer collaborator, not a subservient assistant.

• 482

  Dup a

  netresearch/composer-agent-skill-plugin/tests/Fixtures/direct-skills/dup-a · Skill

  9★ repo

  Composer plugin enabling universal Agent Skill distribution and management for PHP projects

• 483

  E2e reviewer

  voidmatcha/e2e-skills/skills/e2e-reviewer · Skill

  9★ repo

  AI agent testing toolkit for Playwright and Cypress: generate E2E tests from scratch, review existing specs against 24 anti-patterns (P0/P1/P2 silent-always-pass smells), and debug flaky failures from playwright-report/ or cypress/reports/. Agent Skills for Claude Code and Codex.

• 484

  Assertion patterns

  QBall-Inc/the-bulwark/skills/assertion-patterns · Skill

  8★ repo

  Development workflow enforcement plugin for Claude Code

• 485

  Spec graph

  tyeongkim/spec-graph/skills/spec-graph · Skill

  no license8★ repo

  CLI tool for managing software specifications as a typed graph

• 486

  Test helper

  devrimcavusoglu/skern/tests/manual/scenarios/09-template-skills/templates/test-helper · Skill

  7★ repo

  Mass Skills Manager for Agents on AI Driven Development

• 487

  Playwright core

  hzijad/playwright-agent-skills/skills/playwright-core · Skill

  6★ repo

  Playwright skills for writing, reviewing, and debugging reliable end-to-end tests.

• 488

  Infosec engineer

  CrashBytes/claude-role-skills/skills/infosec-engineer · Skill

  6★ repo

  Claude Code plugin with 7 role-based professional skills for software teams — Scrum Master, Product Owner, Product Manager, UX/UI Developer, InfoSec Engineer, DevOps Engineer, and Software Migration Engineer

• 489

  Evil skill

  huajielong/skill-evaluator/evals/fixtures/evil-skill · Skill

  6★ repo

  Your AI agent skill doctor - 5-dimension scoring + security gate + leaderboard

• 490

  Create test cases

  katalon-labs/true-skills/plugins/katalon-true-platform/skills/create-test-cases · Skill

  6★ repo
• 491

  Pitlane test

  pitlane-ai/pitlane/tests/e2e/fixtures/skills/pitlane-test · Skill

  no license6★ repo

  Race a baseline vs a skill or MCP on real tasks. Hard checks show if it got better, faster, or cheaper. Numbers, not vibes.

• 492

  Android emulator mask testing

  simiancraft/simiancraft-skills/skills/android-emulator-mask-testing · Skill

  6★ repo

  Public Claude Code skills and agents from simiancraft. Marketplace-installable.

• 493

  Ai feature eval harness

  Mozurok/fhorja.dev/.claude/skills/ai-feature-eval-harness · Skill

  6★ repo

  A workflow operating system for AI-assisted engineering. Task state, decisions, and plans live on disk as files, not in chat history, so context survives across sessions, tools, and restarts.

• 494

  Drift testing

  pactflow/pactflow-agent-skills/plugins/swagger-contract-testing/skills/drift-testing · Skill

  6★ repo

  Plugins & Agent Skills for Pactflow, Pact & Drift

• 495

  Maestro flutter

  aleksandr-chaika/flutter-clean-arch-skills/skills/maestro-flutter · Skill

  5★ repo

  Complete Flutter development pipeline — Clean Architecture + BLoC + Maestro QE. Autonomous agents for PM, dev, review, testing

• 496

  Ab test analyzer

  SkillMedev/skills/skills/ab-test-analyzer · Skill

  5★ repo

  The open Skill Me catalog — every hosted skill as a portable, MIT-licensed SKILL.md

• 497

  Maieutic

  Shogo1222/socratic/skills/maieutic · Skill

  5★ repo
• 498

  Complete test code

  shyuan/skills/skills/complete-test-code · Skill

  5★ repo

  A curated collection of Agent Skills for Claude Code and compatible agents.

• 499

  Ab test generator

  Gingg7260/affiliate-skills/skills/analytics/ab-test-generator · Skill

  5★ repo

  Automate affiliate marketing with 45 AI skills for research, content, pages, tracking, and optimization across any AI agent

• 500

  Skills

  ryne2010/harness-engineering-audit/plugins/harness-engineering-audit/skills/harness-engineering-audit/assets/templates/skills · Skill

  5★ repo
• 501

  Api mocking

  christopherlouet/claude-base/.claude/skills/api-mocking · Skill

  5★ repo

  Opinionated Claude Code foundation — Explore → TDD → Audit workflow, auto-detected stack presets (nextjs, fastapi, astro, ...), curl | bash install. MIT.

• 502

  Ci cd generator

  Bruno-Cunha-Souza/ValarMindSkills/skills/ci-cd-generator · Skill

  5★ repo

  A library of reusable skills for AI agents. Each skill/plugin is a Markdown file with YAML frontmatter that can be invoked as a slash command within Claude Code CLI or Antigravity IDE.

• 503

  Cli audit doc

  Destynova2/cli-code-skills/cli-audit-doc · Skill

  5★ repo

  Production-ready Claude Code skills — audit code quality, forge design docs, generate documentation, automate infrastructure. CLI = Command Line Interface + Clement Liard Initials.

• 504

  Bughunt

  robzilla1738/roberts-skills/plugins/bughunt-suite/skills/bughunt · Skill

  5★ repo

  Provider-agnostic agent skills and plugins for AI coding assistants. By Robert Courson.

• 505

  Generate unit tests

  basteez/java-skills/.claude/skills/generate-unit-tests · Skill

  no license4★ repo

  A collection of java skills for claude code

• 506

  Skill testing

  wangwei1237/agent-skills/skill-testing · Skill

  4★ repo

  Agent Skills

• 507

  Autogen promql tests

  conallob/o11y-analysis-tools/skills/autogen-promql-tests · Skill

  4★ repo

  Various static analysis and testing tools for managing PromQL compatible monitoring stacks

• 508

  Benchmark e2e

  build-with-dhiraj/ai-workflow-framework-portability-kit/Plugins/vercel-marketplace-source/.claude/skills/benchmark-e2e · Skill

  4★ repo

  Portable, self-contained snapshot of a complete Claude Code setup — 36 specialist agents, 134 skills, plugins, MCP servers & host tooling. Clone, claude login, run one script, restore the whole orchestration stack in ~20 min.

• 509

  Debugging diagnosis

  stark-ai-de/agent-skills/incubator/skills/engineering-workflows/debugging-diagnosis · Skill

  4★ repo

  Public Agent Skills for Codex operations, Cursor operations, Claude operations, repo maintenance, skill maintenance, productivity, and engineering workflows.

• 510

  Owndiff

  owndiff/own-your-diff/skills/owndiff · Skill

  4★ repo

  Own Your Diff is a local human review gate for AI-assisted code changes. It generates grounded multiple choice questions before agents can push or open pull requests.

• 511

  Microcks local server

  emmanuelperu/microcks-skills/skills/microcks-local-server · Skill

  4★ repo

  Agent skills for Microcks : API mocking and testing from OpenAPI specifications

• 512

  New test

  OleksiiDotsenko/test-builder/plugins/test-builder/skills/new-test · Skill

  4★ repo

  Claude Code plugin for educators: evidence-based test construction — blueprints, Bloom matrices, item writing by format rules, review checklists, and classroom psychometrics (P-value, D-index, Rit, distractor analysis).

• 513

  Valid skill

  Sagargupta16/skillcheck/fixtures/valid-skill · Skill

  4★ repo

  Conformance suite for Agent Skills: lint SKILL.md against the spec, run against real agent runtimes, publish a compatibility matrix

• 514

  Run parity test c

  gustavo-meilus/superpipelines/.agents/antigravity/skills/superpipelines/parity-test-c/run-parity-test-c · Skill

  4★ repo

  Loop Engineering for AI coding agents, with real review boundaries. Your AI reviewer cannot edit code. Structurally.

• 515

  Browse tests

  tmuskal/arc-agi-benchmarker/plugins/arc-agi-benchmarker/skills/browse-tests · Skill

  no license3★ repo

  Prove you achieved AGI at home by testing your claude-code setup against arc-agi-3 benchmarks

• 516

  Supreme ai engineering

  davccavalcante/supreme-coding-guidelines-skill.ah/skills/supreme-ai-engineering · Skill

  no license3★ repo

  The .ah (Teleological Semantic Format) skill bundle for Claude Code, Cursor, Trae, Zed & Kiro by David C. Cavalcante. 9 gematria-checksummed skills: coding guidelines, project audit, problem-solving, AI engineering, NPM/Node, content craft, deliberation council & research-grade benchmarking. Token-efficient, always-on after one load.

• 517

  Clean tests

  OmarSaleh506/skills/skills/ai-os-init/templates/.claude/skills/clean-tests · Skill

  3★ repo

  Portable, install-once agent skills for Claude Code, Cursor, Codex & more — a price-comparison shopper, a SQLAlchemy 2.0 reference, a codebase flow-mapper, and an AI-OS scaffolder.

• 518

  Agent browser

  nbialk/quiver-cli/template/.agents/skills/agent-browser · Skill

  3★ repo

  Compose skills, slash commands & MCP servers from a central catalog into any repo as native configs for opencode, Claude Code and Codex - with lockfile-based drift detection.

• 519

  Api testing

  ironbee-ai/ironbee-devtools-skills/skills/api-testing · Skill

  3★ repo

  Skills for IronBee DevTools MCP/CLI

• 520

  Browser testing

  bhaumikmaan/claude-code-master-skills/skills/browser-testing · Skill

  3★ repo

  Advanced and deterministic skills built specifically for the Claude Code agent environment extending extends Claude's native capabilities to autonomously handle complex development tasks

• 521

  Ab test analyzer

  JayRHa/AgentSkills/ab-test-analyzer · Skill

  3★ repo

  The largest community-driven library of Agent Skills (SKILL.md + scripts/references/examples) for Claude, Codex, Gemini CLI, Cursor and friends.

• 522

  Ci testing

  gerph/riscos-agent-skills/skills/ci-testing · Skill

  3★ repo

  Skills repository for RISC OS agents

• 523

  Danger tool

  RsLuna7/skillhub/tests/fixtures/skills/danger-tool · Skill

  3★ repo

  A lightweight local SkillHub and MCP bridge for sharing agent skills across AI agents.

• 524

  Browser testing with devtools

  LLl0k0laD/agent-skills/skills/browser-testing-with-devtools · Skill

  2★ repo

  Enhance AI coding agents with structured workflows and best practices for building reliable web applications through production-grade engineering skills.

• 525

  Lesson quiz

  spideynolove/claude-code-in-action/00-materials/claude-howto/.claude/skills/lesson-quiz · Skill

  2★ repo

  The process I experienced firsthand through the https://anthropic.skilljar.com/claude-code-in-action course using real-world daily projects

• 526

  Add feature

  2389-research/firebase-development/skills/add-feature · Skill

  2★ repo

  Firebase project workflows including setup, features, debugging, and validation

• 527

  Ab test setup

  multiplex-ai/muggle-ai-teams/skills/ab-test-setup · Skill

  2★ repo

  AI workflow for Claude Code — describe what you want, get production-grade results. Code, content, design, planning. Built by MuggleTest.

• 528

  Specmint tdd

  ngvoicu/specmint-tdd/skills/specmint-tdd · Skill

  2★ repo

  TDD-first spec workflow for AI coding agents. Strict red-green-refactor enforcement, alternating TEST-IMPL task pairs, TDD Log audit trail. Everything in Spec Mint Core plus test-driven discipline. Claude Code plugin + universal skill.

• 529

  Counterintuitive tests

  meikocho1/alchemy-marketing-skills/skills/counterintuitive-tests · Skill

  2★ repo

  Rory Sutherland's psycho-logic as Claude skills — solve the human perception, not the metric. Reframing, costly signaling, counterintuitive tests, experience design.

• 530

  Agent browser

  magnusrodseth/dotfiles/.claude/skills/agent-browser · Skill

  no license2★ repo

  ⚙️ There are many like them, but these dotfiles are mine. A stow-managed macOS setup: Zsh, Neovim, tmux, Ghostty, and a pile of Claude Code tooling.

• 531

  Dev coding

  calneymgp/solodev/skills/dev-coding · Skill

  2★ repo

  Solo-dev Claude Code skills: brainstorm → plan → code. No ceremony, no vibes. Fusion of Matt Pocock, OpenSpec, get-shit-done.

• 532

  Ratemycode

  AmsonntagChow/ratemycode/skills/ratemycode · Skill

  2★ repo

  RateMyCode: Staff-level product audits for vibe-coded apps, with evidence, release vetoes, fix prompts, and same-rubric retests.

• 533

  Awesome bug fix

  khasky/awesome-agent-skills/skills/awesome-bug-fix · Skill

  2★ repo

  Skills for AI coding agents: code review, debugging, security audits, refactoring, cleaning up AI-written code and text, and more.

• 534

  Android app submission

  alfredang/skills/android-app-submission · Skill

  no license2★ repo

  Claude Code skills: auto-detect & start any app, README generator, Docker Hub push, LinkedIn posts, NotebookLM slides, secret scanner, mobile responsiveness testing | Install with npx skills add

• 535

  Tcr

  xpepper/tcr-skill/tcr · Skill

  2★ repo

  A collection of Agent Skills for TCR (Test && Commit || Revert) workflows.

• 536

  Test skill a

  LittlePeter52012/skill-router/testdata/skills/test-skill-a · Skill

  2★ repo

  ⚡ Blazing-fast skill routing engine for AI coding agents. Discovers, indexes, and routes 300+ agent skills in <50ms. Supports Gemini/OpenAI embedding reranking.

• 537

  Spring boot dev

  arconia-io/agent-skills/skills/spring-boot-dev · Skill

  2★ repo

  Agent Skills for the Java, Spring Boot, and Arconia ecosystem, published as OCI artifacts and consumable via the Arconia CLI or any tool supporting the Agent Skills OCI Artifacts Specification.

• 538

  Test driven development

  RbBtSn0w/adg/test/fixtures/superpowers/skills/test-driven-development · Skill

  2★ repo

  One CLI to manage AI agent plugins and skills — author once in a single manifest, adapt to Claude Code, Codex & Antigravity. Versioned & reproducible.

• 539

  Ue angelscript tests

  osseous/skills/skills/ue-angelscript-tests · Skill

  2★ repo

  Agent skills for Unreal Engine + AngelScript workflows. Drop-in skills.sh-compatible monorepo.

• 540

  Test init

  knowhowlab/agent-testkit/skills/test-init · Skill

  2★ repo

  Universal E2E & manual acceptance testing skills for Claude Code — every run writes a protocol