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. 79 354 files from 1 739 authors, of which 61 713 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.

61 713

unique skills

out of 79 354 files found on GitHub

17 641

are copies

same content, someone else's repository

1 738

tokens, median

what a typical skill costs you in context

7 879

name collisions

two skills with one name cannot sit side by side

55 681–55 740 of 61 713

page 929 of 1 029

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Azure Diagnostics

by ComeOnOliver

700 tokens

Azure Eventgrid Dotnet

Azure Eventhub Dotnet

Azure Identity Dotnet

Azure Keyvault Certificates Rust

by ComeOnOliver

1k tokens

Azure Keyvault Keys Rust

by ComeOnOliver

911 tokens

Azure Keyvault Keys Ts

Azure Keyvault Secrets Rust

by ComeOnOliver

814 tokens

Azure Keyvault Secrets Ts

Azure Maps Search Dotnet

by ComeOnOliver

4k tokens

Azure Messaging Webpubsub Java

by ComeOnOliver

2k tokens

Azure Messaging Webpubsubservice Py

by ComeOnOliver

1k tokens

Azure Mgmt Apicenter Dotnet

by ComeOnOliver

3k tokens

Azure Mgmt Apicenter Py

by ComeOnOliver

2k tokens

Azure Mgmt Apimanagement Dotnet

by ComeOnOliver

2k tokens

Azure Mgmt Apimanagement Py

by ComeOnOliver

2k tokens

Azure Mgmt Applicationinsights Dotnet

by ComeOnOliver

4k tokens

Azure Mgmt Arizeaiobservabilityeval Dotnet

by ComeOnOliver

2k tokens

Azure Mgmt Botservice Dotnet

by ComeOnOliver

2k tokens

Azure Mgmt Botservice Py

by ComeOnOliver

2k tokens

Azure Mgmt Fabric Dotnet

Azure Mgmt Mongodbatlas Dotnet

by ComeOnOliver

3k tokens

Azure Mgmt Weightsandbiases Dotnet

by ComeOnOliver

3k tokens

Azure Microsoft Playwright Testing Ts

by ComeOnOliver

2k tokens

Azure Monitor Ingestion Java

by ComeOnOliver

2k tokens

Azure Monitor Ingestion Py

by ComeOnOliver

1k tokens

Azure Monitor Opentelemetry Exporter Java

by ComeOnOliver

2k tokens

Azure Monitor Opentelemetry Exporter Py

by ComeOnOliver

1k tokens

Azure Monitor Opentelemetry Py

by ComeOnOliver

1k tokens

Azure Monitor Opentelemetry Ts

by ComeOnOliver

2k tokens

Azure Monitor Query Java

by ComeOnOliver

3k tokens

Azure Monitor Query Py

Azure Resource Lookup

by ComeOnOliver

1k tokens

Azure Resource Manager Cosmosdb Dotnet

by ComeOnOliver

2k tokens

Azure Resource Manager Durabletask Dotnet

by ComeOnOliver

3k tokens

Azure Resource Manager Mysql Dotnet

by ComeOnOliver

3k tokens

Azure Resource Manager Playwright Dotnet

by ComeOnOliver

2k tokens

Azure Resource Manager Postgresql Dotnet

by ComeOnOliver

4k tokens

Azure Resource Manager Redis Dotnet

by ComeOnOliver

3k tokens

Azure Resource Manager SQL Dotnet

by ComeOnOliver

2k tokens

Azure Search Documents Dotnet

by ComeOnOliver

2k tokens

Azure Search Documents Py

by ComeOnOliver

3k tokens

Azure Search Documents Ts

by ComeOnOliver

2k 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: 11 329 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 79 354 files found on GitHub, 61 713 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 into the model's context when it is used, so its size is a running cost on every request that touches it. We measure the whole folder, not just SKILL.md: one official skill is 377 tokens, another drags 83 files of fonts behind it.

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: 7 879 skills here share a name with another skill, and two of them cannot sit side by side.