Claude Skills

The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.

Every Agent Skill we could find on GitHub, deduplicated by content. 86 961 files from 2 125 authors, of which 68 678 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.

68 678

unique skills

out of 86 961 files found on GitHub

18 283

are copies

same content, someone else's repository

1 749

tokens, median

what a typical skill costs you in context

8 467

name collisions

two skills with one name cannot sit side by side

63 361–63 420 of 68 678

page 1057 of 1 145

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Observability Engineer

by ComeOnOliver

3.2k tokens

Observability Monitoring Monitor Setup

by ComeOnOliver

483 tokens

Observability Monitoring Slo Implement

by ComeOnOliver

382 tokens

On Call Handoff Patterns

by ComeOnOliver

2.8k tokens

Openapi Spec Generation

Performance Testing Review AI Review

Prometheus Configuration

Protocol Reverse Engineering

by ComeOnOliver

207 tokens

Python Development Python Scaffold

Python Performance Optimization

Python Testing Patterns

React State Management

Risk Metrics Calculation

Screen Reader Testing

Security Compliance Compliance Check

by ComeOnOliver

528 tokens

Security Requirement Extraction

by ComeOnOliver

208 tokens

Security Scanning Security Dependencies

by ComeOnOliver

385 tokens

Security Scanning Security Hardening

by ComeOnOliver

2.7k tokens

Security Scanning Security Sast

by ComeOnOliver

3.5k tokens

SEO Authority Builder

by ComeOnOliver

817 tokens

SEO Cannibalization Detector

SEO Content Refresher

SEO Keyword Strategist

SEO Structure Architect

Service Mesh Observability

by ComeOnOliver

2.6k tokens

Shellcheck Configuration

by ComeOnOliver

2.4k tokens

Similarity Search Patterns

by ComeOnOliver

204 tokens

Claude Skills — questions

Answers built from the skills we actually parsed.

What is a Claude Skill?

A folder with a SKILL.md file: instructions that teach an agent to do one thing well, optionally with scripts and reference files alongside. The format is open and called Agent Skills — Claude Code, Codex and other agents read the same files. It is not a program you run; it is knowledge the agent loads when the task calls for it.

How is a skill different from an MCP server?

A server gives the agent new abilities — it connects to something and exposes tools. A skill gives the agent knowledge: how to use what it already has. They combine, and often literally: 13 478 of the skills here declare which MCP servers they need to work.

Why are there fewer skills here than in other catalogues?

Because we deduplicate by content. Of 86 961 files found on GitHub, 68 678 are unique — the rest is the same skill copied into someone else's repository, word for word. Catalogues that count files rather than skills show every copy as a separate entry.

What does the token count mean?

A skill is loaded in stages. Its name and description stay in the model's context all the time; the body of SKILL.md is read when the skill is used; other files in the folder, such as references, scripts and fonts, are opened only when the skill asks for them. The number we show is SKILL.md, the part every use pays for. A big folder is not a big cost: one official skill ships 83 font files, and none of them ever enters the context.

How do I install a skill?

Copy the skill folder into ~/.claude/skills for personal use, or into .claude/skills inside a project. The agent picks it up by the name in the SKILL.md header — which is worth checking: 8 467 skills here share a name with another skill, and two of them cannot sit side by side.

Claude Skills

63 361–63 420 of 68 678

Claude Skills — questions

63 361–63 420 of 68 678