LAYER 1 · SKILL.MD LIBRARY

Skills library

Anthropic shipped Agent Skills in October 2025. Seven months later every major coding agent reads the SKILL.md format. We index them here — the procedural-knowledge layer above MCP and Tools. Read the explainer →

1,080 SKILL.md files indexed Skill taxonomy (Layer 0 labels) → MCP servers (Layer 2) →
affaan-m/everything-claude-code SKILL.md ★ 186742
Everything Claude Code

The ultimate Claude Code optimization system with 86+ skills, rules, hooks, and agent configurations

The ultimate Claude Code optimization system with 86+ skills, rules, hooks, and agent configurations
claude-code skills rules hooks q 100%
anthropics/skills SKILL.md ★ 137187
Anthropic Official Skills

16 official skills from Anthropic, the creators of Claude — frontend design, PDF, DOCX, XLSX, MCP builder, and more

16 official skills from Anthropic, the creators of Claude — frontend design, PDF, DOCX, XLSX, MCP builder, and more
anthropic claude official frontend-design q 100%
anthropics/skills/tree/main/skills/doc-coauthoring SKILL.md ★ 137187
Doc Co-Authoring Workflow

Structured workflow for collaboratively writing documentation, proposals, and technical specs with Claude through three stages: context gathering, iterative refinement, and reader testing

Structured workflow for collaboratively writing documentation, proposals, and technical specs with Claude through three stages: context gathering, iterative refinement, and reader testing
documentation writing collaboration technical-writing q 100%
anthropics/skills/tree/main/skills/frontend-design SKILL.md ★ 137187
Frontend Design

Guides Claude to create distinctive, production-grade frontend interfaces with high design quality, covering typography, color, motion, spatial composition, and background treatments

Guides Claude to create distinctive, production-grade frontend interfaces with high design quality, covering typography, color, motion, spatial composition, and background treatments
frontend ui-design css web-development q 100%
composiohq/awesome-claude-skills/tree/main/developer-growth-analysis SKILL.md ★ 60547
Developer Growth Analysis

Analyzes recent Claude Code chat history to identify coding patterns and development gaps, curates learning resources from HackerNews, and delivers growth reports to Slack

Analyzes recent Claude Code chat history to identify coding patterns and development gaps, curates learning resources from HackerNews, and delivers growth reports to Slack
developer-growth code-analysis self-improvement learning-resources q 100%
composiohq/awesome-claude-skills/tree/main/document-skills SKILL.md ★ 60547
Document Skills Suite

Comprehensive document processing collection covering Word (.docx), PDF, PowerPoint (.pptx), and Excel (.xlsx) creation, editing, and analysis with professional-grade workflows

Comprehensive document processing collection covering Word (.docx), PDF, PowerPoint (.pptx), and Excel (.xlsx) creation, editing, and analysis with professional-grade workflows
documents word pdf powerpoint q 100%
composiohq/awesome-claude-skills/tree/main/langsmith-fetch SKILL.md ★ 60547
LangSmith Fetch

Debug LangChain and LangGraph agents by fetching execution traces from LangSmith Studio with 4 workflows: quick debug, deep dive, export, and error pattern detection

Debug LangChain and LangGraph agents by fetching execution traces from LangSmith Studio with 4 workflows: quick debug, deep dive, export, and error pattern detection
langchain langsmith debugging agent-debugging q 100%
composiohq/awesome-claude-skills/tree/main/tailored-resume-generator SKILL.md ★ 60547
Tailored Resume Generator

Analyzes job descriptions and generates tailored resumes with ATS optimization, covering career transitions, senior executives, and recent graduates

Analyzes job descriptions and generates tailored resumes with ATS optimization, covering career transitions, senior executives, and recent graduates
resume job-search career ats-optimization q 100%
github/awesome-copilot SKILL.md ★ 33313
GitHub Copilot Skills

324 official GitHub Copilot plugin skills across Azure, .NET, Docker, and more

324 official GitHub Copilot plugin skills across Azure, .NET, Docker, and more
copilot github azure dotnet q 100%
vercel-labs/agent-skills SKILL.md ★ 26791
Vercel Skills

8 official Vercel skills for Next.js, React, and edge deployment

8 official Vercel skills for Next.js, React, and edge deployment
vercel nextjs react edge q 100%
openai/skills SKILL.md ★ 19534
OpenAI Official Skills

37 official skills from OpenAI for Codex CLI and multi-agent development

37 official skills from OpenAI for Codex CLI and multi-agent development
openai codex official agents q 100%
muratcankoylan/agent-skills-for-context-engineering SKILL.md ★ 15764
Context Engineering

Context engineering techniques

Context engineering techniques
debugging dev q 100%
phuryn/pm-skills SKILL.md ★ 11381
PM Skills Marketplace

63 product management skills from discovery to strategy, execution, launch, and growth

63 product management skills from discovery to strategy, execution, launch, and growth
product-management roadmap gtm strategy q 100%
huggingface/skills SKILL.md ★ 10520
Hugging Face Skills

13 official Hugging Face skills for transformers, model hub, and ML pipelines

13 official Hugging Face skills for transformers, model hub, and ML pipelines
huggingface transformers ml models q 100%
mukul975/anthropic-cybersecurity-skills SKILL.md ★ 6440
Cybersecurity Skills

734+ structured cybersecurity skills mapped to MITRE ATT&CK framework for AI agents

734+ structured cybersecurity skills mapped to MITRE ATT&CK framework for AI agents
cybersecurity mitre-attack pentesting incident-response q 100%
sawyerhood/dev-browser SKILL.md ★ 6121
Dev Browser

Web browser capability for agents

Web browser capability for agents
web dev q 100%
google-labs-code/stitch-skills SKILL.md ★ 5481
Google AI Skills

11 official skills from Google Labs and Gemini for AI-powered development

11 official skills from Google Labs and Gemini for AI-powered development
google gemini stitch ai q 100%
trailofbits/skills SKILL.md ★ 3602
Trail of Bits Security Research

45 security research and vulnerability detection skills from Trail of Bits

45 security research and vulnerability detection skills from Trail of Bits
security-research fuzzing static-analysis vulnerability q 100%
snyk/agent-scan SKILL.md ★ 2427
Snyk Security Skills

15 Snyk skills for vulnerability scanning, dependency auditing, and supply chain security

15 Snyk skills for vulnerability scanning, dependency auditing, and supply chain security
snyk security vulnerability dependency-audit q 100%
microsoft/skills SKILL.md ★ 2343
Microsoft Skills

333 skills across Azure, .NET, AI Foundry — the largest enterprise skills collection

333 skills across Azure, .NET, AI Foundry — the largest enterprise skills collection
microsoft azure dotnet csharp q 100%
expo/skills SKILL.md ★ 1941
Expo Skills

11 official Expo skills for React Native and cross-platform mobile development

11 official Expo skills for React Native and cross-platform mobile development
expo react-native mobile ios q 100%
cloudflare/skills SKILL.md ★ 1578
Cloudflare Skills

9 official Cloudflare skills for Workers, Pages, R2, and edge computing

9 official Cloudflare skills for Workers, Pages, R2, and edge computing
cloudflare workers pages r2 q 100%
cisco-ai-defense/skill-scanner SKILL.md ★ 1418
Cisco AI Defense Skills

12 Cisco skills for AI agent security scanning and threat detection

12 Cisco skills for AI agent security scanning and threat detection
cisco security scanner prompt-injection q 100%
neolabhq/context-engineering-kit/tree/master/plugins/kaizen/skills/analyse-problem SKILL.md ★ 1013
A3 Problem Analysis

Toyota A3 problem analysis template covering 7 stages: background, current state, goals, root cause analysis, countermeasures, implementation plan, and follow-up

Toyota A3 problem analysis template covering 7 stages: background, current state, goals, root cause analysis, countermeasures, implementation plan, and follow-up
a3-analysis problem-solving root-cause lean q 100%
neolabhq/context-engineering-kit/tree/master/plugins/customaize-agent/skills/agent-evaluation SKILL.md ★ 1013
Agent Evaluation Framework

Comprehensive Claude Code agent evaluation framework with multi-dimensional scoring, LLM-as-Judge mode, and research-backed performance variance analysis

Comprehensive Claude Code agent evaluation framework with multi-dimensional scoring, LLM-as-Judge mode, and research-backed performance variance analysis
agent-evaluation llm-as-judge benchmarking context-engineering q 100%
neolabhq/context-engineering-kit/tree/master/plugins/git/skills/analyze-issue SKILL.md ★ 1013
Analyze GitHub Issue

Analyzes GitHub issues and creates technical spec documents with problem statement, technical approach, implementation plan, and testing strategy

Analyzes GitHub issues and creates technical spec documents with problem statement, technical approach, implementation plan, and testing strategy
github-issues technical-spec project-management documentation q 100%
neolabhq/context-engineering-kit/tree/master/plugins/tdd/skills/fix-tests SKILL.md ★ 1013
Auto Fix Tests

Systematic failing test repair orchestration with auto-discovery, parallel agent fixes, and full verification, emphasizing fixing tests without modifying business logic

Systematic failing test repair orchestration with auto-discovery, parallel agent fixes, and full verification, emphasizing fixing tests without modifying business logic
test-fixing debugging automation multi-agent q 100%
neolabhq/context-engineering-kit/tree/master/plugins/docs/skills/update-docs SKILL.md ★ 1013
Auto Update Docs

Multi-agent workflow for automatically updating documentation based on code changes, covering docs/, README, JSDoc, and API docs with complexity-based routing

Multi-agent workflow for automatically updating documentation based on code changes, covering docs/, README, JSDoc, and API docs with complexity-based routing
documentation auto-update multi-agent api-docs q 100%
neolabhq/context-engineering-kit/tree/master/plugins/tdd/skills/write-tests SKILL.md ★ 1013
Auto Write Tests

Automated test writing orchestration system that discovers test infrastructure, analyzes code changes, and dispatches parallel agents to write comprehensive test coverage

Automated test writing orchestration system that discovers test infrastructure, analyzes code changes, and dispatches parallel agents to write comprehensive test coverage
test-writing test-coverage automation multi-agent q 100%
neolabhq/context-engineering-kit/tree/master/plugins/mcp/skills/build-mcp SKILL.md ★ 1013
Build MCP Server

MCP server development guide with agent-centric design principles, workflow-first approach, and dual Python (FastMCP) / TypeScript implementation support

MCP server development guide with agent-centric design principles, workflow-first approach, and dual Python (FastMCP) / TypeScript implementation support
mcp model-context-protocol api-design agent-tools q 100%
neolabhq/context-engineering-kit/tree/master/plugins/customaize-agent/skills/context-engineering SKILL.md ★ 1013
Context Engineering Guide

Comprehensive context engineering tutorial covering attention mechanics, progressive disclosure, context budget management, and quality vs quantity trade-offs for AI agent development

Comprehensive context engineering tutorial covering attention mechanics, progressive disclosure, context budget management, and quality vs quantity trade-offs for AI agent development
context-engineering attention-mechanics progressive-disclosure llm-fundamentals q 100%
neolabhq/context-engineering-kit/tree/master/plugins/git/skills/commit SKILL.md ★ 1013
Conventional Commit Helper

Conventional commit format guide with auto-staging, diff analysis, multi-change split suggestions, and 30+ emoji mappings for commit types

Conventional commit format guide with auto-staging, diff analysis, multi-change split suggestions, and 30+ emoji mappings for commit types
git-commit conventional-commits emoji automation q 100%
neolabhq/context-engineering-kit/tree/master/plugins/customaize-agent/skills/create-agent SKILL.md ★ 1013
Create Claude Code Agent

Complete guide for creating Claude Code agents with YAML frontmatter structure, agent file format, trigger condition design, and system prompt writing

Complete guide for creating Claude Code agents with YAML frontmatter structure, agent file format, trigger condition design, and system prompt writing
agent-creation claude-code system-prompts context-engineering q 100%
neolabhq/context-engineering-kit/tree/master/plugins/customaize-agent/skills/create-hook SKILL.md ★ 1013
Create Git Hook

Claude Code git hook creation workflow with project analysis, intelligent suggestions for TypeScript/Prettier/ESLint/security, auto-configuration, and testing

Claude Code git hook creation workflow with project analysis, intelligent suggestions for TypeScript/Prettier/ESLint/security, auto-configuration, and testing
git-hooks automation developer-experience claude-code q 100%
neolabhq/context-engineering-kit/tree/master/plugins/git/skills/create-worktree SKILL.md ★ 1013
Create Git Worktree

Automated git worktree creation with branch type prefix detection, dependency installation for Node/Python/Rust/Go/Ruby/PHP, and package manager detection

Automated git worktree creation with branch type prefix detection, dependency installation for Node/Python/Rust/Go/Ruby/PHP, and package manager detection
git-worktree parallel-development automation multi-language q 100%
neolabhq/context-engineering-kit/tree/master/plugins/git/skills/create-pr SKILL.md ★ 1013
Create PR Workflow

GitHub CLI-based PR creation workflow with pre-checks for uncommitted code, conventional commit formatting, and emoji title conventions

GitHub CLI-based PR creation workflow with pre-checks for uncommitted code, conventional commit formatting, and emoji title conventions
pull-request github-cli conventional-commits workflow q 100%
neolabhq/context-engineering-kit/tree/master/plugins/customaize-agent/skills/create-skill SKILL.md ★ 1013
Create Skill (TDD Method)

TDD methodology for skill creation — test with subagents first, write skill to address failures, iterate until bulletproof against rationalization

TDD methodology for skill creation — test with subagents first, write skill to address failures, iterate until bulletproof against rationalization
skill-creation tdd context-engineering documentation q 100%
neolabhq/context-engineering-kit/tree/master/plugins/sadd/skills/do-and-judge SKILL.md ★ 1013
Execute and Judge Loop

Single-task execution with LLM-as-Judge verification in an iterative loop, supporting auto-retry and strict orchestrator role separation

Single-task execution with LLM-as-Judge verification in an iterative loop, supporting auto-retry and strict orchestrator role separation
execute-verify llm-as-judge retry-loop quality-gate q 100%
neolabhq/context-engineering-kit/tree/master/plugins/fpf/skills/propose-hypotheses SKILL.md ★ 1013
First Principles Hypothesis Framework

First Principles reasoning framework with hypothesis generation, logical and evidence validation, layered trust audit (L0/L1/L2), and reliability scoring

First Principles reasoning framework with hypothesis generation, logical and evidence validation, layered trust audit (L0/L1/L2), and reliability scoring
first-principles hypothesis decision-framework evidence-based q 100%
neolabhq/context-engineering-kit/tree/master/plugins/git/skills/worktrees SKILL.md ★ 1013
Git Worktrees Reference

Complete reference for git worktree concepts and commands: create, manage, list, move, lock, and remove operations with practical examples

Complete reference for git worktree concepts and commands: create, manage, list, move, lock, and remove operations with practical examples
git-worktree reference parallel-development branching q 100%
neolabhq/context-engineering-kit/tree/master/plugins/sadd/skills/judge SKILL.md ★ 1013
LLM-as-Judge Evaluator

Standalone LLM-as-Judge evaluation tool with context isolation, Chain-of-Thought scoring, multi-dimensional weighted rubric, and evidence-backed assessments

Standalone LLM-as-Judge evaluation tool with context isolation, Chain-of-Thought scoring, multi-dimensional weighted rubric, and evidence-backed assessments
llm-as-judge evaluation context-isolation multi-dimensional-scoring q 100%
neolabhq/context-engineering-kit/tree/master/plugins/reflexion/skills/memorize SKILL.md ★ 1013
Memory Curation System

Agentic Context Engineering memory system that extracts insights from reflections and critiques, curates them, and updates CLAUDE.md as an evolving knowledge base

Agentic Context Engineering memory system that extracts insights from reflections and critiques, curates them, and updates CLAUDE.md as an evolving knowledge base
memory context-engineering knowledge-curation claude-md q 100%
neolabhq/context-engineering-kit/tree/master/plugins/sadd/skills/multi-agent-patterns SKILL.md ★ 1013
Multi-Agent Architecture Patterns

Reference guide for multi-agent architecture patterns including Supervisor/Orchestrator, Peer-to-Peer/Swarm, and Hierarchical, with context isolation principles and Claude Code implementation

Reference guide for multi-agent architecture patterns including Supervisor/Orchestrator, Peer-to-Peer/Swarm, and Hierarchical, with context isolation principles and Claude Code implementation
multi-agent architecture-patterns supervisor swarm q 100%
neolabhq/context-engineering-kit/tree/master/plugins/reflexion/skills/critique SKILL.md ★ 1013
Multi-Perspective Critique

Multi-perspective review system using Multi-Agent Debate and LLM-as-Judge patterns with 3 specialized judges, debate rounds, and consensus building

Multi-perspective review system using Multi-Agent Debate and LLM-as-Judge patterns with 3 specialized judges, debate rounds, and consensus building
critique multi-agent-debate llm-as-judge quality-review q 100%
neolabhq/context-engineering-kit/tree/master/plugins/sadd/skills/do-in-parallel SKILL.md ★ 1013
Parallel Agent Dispatch

Launch multiple sub-agents in parallel with intelligent model selection, Zero-shot CoT reasoning, independence verification, and batch operation scheduling

Launch multiple sub-agents in parallel with intelligent model selection, Zero-shot CoT reasoning, independence verification, and batch operation scheduling
parallel-execution sub-agent orchestration batch-processing q 100%
neolabhq/context-engineering-kit/tree/master/plugins/code-review/skills/review-local-changes SKILL.md ★ 1013
Review Local Changes

Multi-agent code review system for uncommitted changes with 6 specialized reviewer roles (security, bug, quality, contract, testing, history), confidence scoring and false positive filtering

Multi-agent code review system for uncommitted changes with 6 specialized reviewer roles (security, bug, quality, contract, testing, history), confidence scoring and false positive filtering
code-review multi-agent quality-assurance static-analysis q 100%
neolabhq/context-engineering-kit/tree/master/plugins/code-review/skills/review-pr SKILL.md ★ 1013
Review Pull Request

Multi-agent PR review system with specialized reviewers, inline comments, and automatic PR description generation using GitHub CLI

Multi-agent PR review system with specialized reviewers, inline comments, and automatic PR description generation using GitHub CLI
code-review pull-request multi-agent github q 100%
neolabhq/context-engineering-kit/tree/master/plugins/kaizen/skills/root-cause-tracing SKILL.md ★ 1013
Root Cause Tracing

Backward debugging methodology tracing from error symptoms through call chains to find the original trigger point, with 5-step systematic process

Backward debugging methodology tracing from error symptoms through call chains to find the original trigger point, with 5-step systematic process
debugging root-cause call-stack tracing q 100%
neolabhq/context-engineering-kit/tree/master/plugins/reflexion/skills/reflect SKILL.md ★ 1013
Self-Reflection Framework

Iterative self-improvement system with task complexity grading, strict quality gatekeeper role, confidence thresholds, and verification checklists

Iterative self-improvement system with task complexity grading, strict quality gatekeeper role, confidence thresholds, and verification checklists
self-reflection quality-gate iterative-improvement confidence-scoring q 100%
neolabhq/context-engineering-kit/tree/master/plugins/sdd/skills/brainstorm SKILL.md ★ 1013
Spec-Driven Brainstorm

Collaborative brainstorming that refines ideas into designs through progressive questioning, generating 6 solutions (3 high-probability + 3 exploratory) with validation

Collaborative brainstorming that refines ideas into designs through progressive questioning, generating 6 solutions (3 high-probability + 3 exploratory) with validation
brainstorming design ideation collaborative q 100%

Showing top 50 by quality. 1,030 more in the index.