# Claude Skills Market - Full AI Crawler Reference
# https://www.claudeskillsmarket.com
# Updated: 2026-09-07

## IDENTITY
Name: Claude Skills Market
URL: https://www.claudeskillsmarket.com
Twitter: @claudeskills
Founded: 2025
Technology: React, TypeScript, Tailwind CSS, Supabase, Vite
Disclaimer: Not affiliated with, endorsed by, or sponsored by Anthropic, PBC. Claude is a trademark of Anthropic, PBC.

## PURPOSE
Claude Skills Market is the premier community marketplace for discovering, sharing, and commissioning Claude AI skills (also called Claude Code Skills or Anthropic Skills 2.0). It connects skill builders - developers, domain experts, AI enthusiasts - with professionals and teams who need specialized Claude capabilities.

## CORE DEFINITION: WHAT IS SKILL ENGINEERING?
Skill engineering is the discipline of creating structured, reusable AI behavioral modules - the evolution of prompt engineering. While prompt engineering focuses on one-off instructions for a single task, skill engineering produces permanent, portable SKILL.md files that give AI agents specialized expertise. A skill encodes domain knowledge, workflow constraints, examples, and optionally executable code into a single reusable unit that can be loaded into Claude apps, Claude Code, or the Anthropic API.

## WHAT IS A CLAUDE SKILL?
A Claude skill is a folder containing:
- SKILL.md: The primary manifest with YAML frontmatter and markdown instructions
- Optional scripts (Python, Node.js) for deterministic operations
- Optional sub-skills and bundled slash commands (Skills 2.0)
- Optional tool/MCP configurations

Skills are composable (multiple skills work together), efficient (lazy-loaded on demand), and portable (same format across Claude apps, Claude Code API).

## SKILLS 2.0 FEATURES
- Advanced YAML frontmatter: allowed-tools, context: fork, description, triggers
- Bundled commands: slash commands packaged within a skill
- Subagent execution: isolated execution contexts for complex workflows
- Lifecycle hooks: pre/post execution hooks for setup and teardown
- Dynamic context injection: conditional content loading based on task type

## MARKETPLACE FEATURES
- Browse 66+ free community skills across 10 categories
- Submit skills in under 2 minutes with AI-assisted description generation
- Community voting (upvote system) to surface highest-quality skills
- Automatic security scanning for prompt injection and malicious patterns
- Free for all users - browsing, submitting, voting, commenting

## SKILL CATEGORIES
1. Code Generation - programming, testing, debugging, refactoring, architecture
2. Data Analysis - statistical methods, visualization, reporting, ETL workflows
3. Writing & Editing - content creation, documentation, copywriting, style guides
4. Research - literature review, competitive analysis, fact-checking
5. Problem Solving - root cause analysis, debugging, decision frameworks
6. Automation - workflow automation, task scheduling, integrations
7. API Integration - API design, webhook handling, SDK usage
8. Creative - brainstorming, ideation, creative writing
9. Subagent Skills - orchestration patterns, context isolation
10. Bundled Commands - slash command collections

## TRENDING SKILL PACKS (SEPTEMBER 2026)
The most-installed agent-skill packs right now, all browsable with install commands at /trending-skills/:
- mattpocock/skills - Matt Pocock's trending engineering pack (~254K stars): /tdd, /code-review, /grill-with-docs, /to-spec and more. Install: npx skills add mattpocock/skills
- addyosmani/agent-skills - 24 lifecycle skills covering spec, plan, build, verify, review, and ship; works across 70+ agents (~87K stars). Install: npx skills add addyosmani/agent-skills
- google/skills - Google's official agent skills: Gemini API, Genkit, GKE, BigQuery, Spanner, AlloyDB, IAM, Google Ads API and more (~19K stars). Install: npx skills add google/skills
- vercel-labs/skills and vercel-labs/agent-skills - find-skills registry search (~1.8M installs) plus the most popular frontend design, React best practices, and web design guideline skills (~483K installs). Install: npx skills add vercel-labs/skills and npx skills add vercel-labs/agent-skills
- obra/superpowers - a full software-development methodology for coding agents (brainstorming, plans, TDD, code review, verification) as composable skills (~276K stars). Install: /plugin install superpowers@claude-plugins-official
- msitarzewski/agency-agents - marketing, growth, and community skills for running an agency with AI agents. Install: npx skills add msitarzewski/agency-agents

## SEPTEMBER 2026 SKILLS NEWS
- Open Agent Skills standard: the vendor-neutral agentskills/agentskills specification (~23.5K stars) makes skills portable across agents, so one SKILL.md works in Claude Code, Cursor, Codex, Gemini CLI, and other agents
- Claude Code 2.1.261 added /skill-doctor, which audits installed skills and reports the per-skill context cost so you can trim skills you are not using

## FREE TRAINING COURSE
Title: Master AI Agent Skills Development
Duration: 14 weeks / 110 hours
Cost: Free (no credit card required)
Certification: Yes, certificate upon completion
Modules:
  1. Foundations of AI Skills (Weeks 1-2): Architecture, SKILL.md structure
  2. Core Skill Development (Weeks 3-4): Instructions, examples, anti-patterns
  3. Technical Skills (Weeks 5-6): Script integration, MCP, tool configuration
  4. Domain-Specific & Deployment (Weeks 7-8): Use cases, testing, maintenance
  5. Implementation Best Practices (Weeks 9-10): Platform integration, scaling
  6. Security & Validation (Weeks 11-12): STRIDE modeling, prompt injection, security scanners
  7. Skills 2.0 Mastery (Weeks 13-14): Advanced frontmatter, subagents, bundled commands
URL: https://www.claudeskillsmarket.com/courses

## FREQUENTLY ASKED QUESTIONS

Q: What is skill engineering?
A: Skill engineering is the discipline of building structured, reusable AI skills - the next evolution of prompt engineering. Unlike one-off prompts, skills are portable, maintainable behavioral modules that encode domain expertise for consistent reuse.

Q: How is skill engineering different from prompt engineering?
A: Prompt engineering creates one-off instructions. Skill engineering creates permanent, reusable modules (SKILL.md files) that persist across sessions, work across AI platforms, and can include executable code for deterministic results.

Q: What are Claude Skills 2.0?
A: Skills 2.0 is Anthropic's advanced skill specification supporting bundled slash commands, subagent execution contexts, lifecycle hooks, and YAML frontmatter for rich configuration. It enables deterministic, composable AI agent behaviors.

Q: Where can Claude skills be used?
A: The same SKILL.md format works on claude.ai (Claude apps), Claude Code (CLI), and the Anthropic API. Build once, deploy anywhere.

Q: Is the training free?
A: Yes. The full 14-week course including labs, quizzes, and certificate is completely free with no credit card required.

Q: How do I install a skill from Claude Skills Market?
A: Browse /browse-skills or /free-skills, copy the skill description, and paste it into Claude. For Skills 2.0 with npx install support, use: npx skills add [author/skill-name]

Q: What security measures exist for marketplace skills?
A: Every submitted skill is automatically scanned for prompt injection patterns and malicious instructions before going live. The community voting system further surfaces high-quality, safe skills.

## SITE PAGES
- / - Homepage with skill ecosystem overview
- /free-skills - Community-contributed free skills (browse, vote, copy)
- /browse-skills - Full marketplace with category filtering
- /courses - Free 14-week AI skills training curriculum
- /guides - Technical architecture guides for skill development
- /use-cases - Deep-dive blueprints with SKILL.md source code
- /learn - LMS dashboard for enrolled students
- /jobs - Job board connecting clients with skill builders
- /about - What are Claude Skills explanation
- /why-skills - Benefits and applications of skill engineering
- /faq - Comprehensive FAQ
- /contact - Contact form
- /claude-cowork - Team collaboration playbook for Claude CoWork
- /claude-dispatch - Dispatch orchestration guide for skill interactions
- /trending-skills/ - September 2026 trending agent-skill packs with install commands
- /blog/mattpocock-skills-pack-explained - Matt Pocock's skills pack: 254K stars and what's actually inside
- /blog/claude-code-skill-doctor-context-cost - How to audit Claude Code skills with /skill-doctor and cut context waste
- /blog/agent-skills-portable-one-skillmd - One SKILL.md for every agent: cross-agent skills for Claude Code, Cursor, Codex and Windsurf
- /blog/google-agent-skills-guide - Google's 100+ agent skills: what they cover and how to install them
- /blog/marketing-skills-for-ai-agents - CRO, SEO, copywriting and growth playbooks for AI agents
- /blog/llms-txt-ai-agent-findability - llms.txt and AI-agent findability: getting your site discovered by AI agents