anthropics/skills
Anthropic's public repository of Agent Skills — the reference examples, the format specification, a skill template, and the document skills that power Claude's file capabilities.
The reference collection. If you are writing your first Agent Skill, this is where to look before inventing your own conventions.
What is in it
| Path | Contents |
|---|---|
./skills/ |
Example skills, grouped into Creative & Design, Development & Technical, Enterprise & Communication, and Document Skills |
./spec/ |
The Agent Skills specification |
./template/ |
A starting template for a new skill |
The document skills — docx, pdf, pptx, xlsx — are the ones that power Claude’s own
document creation and editing. Reading them is the most direct way to see how a non-trivial skill is
actually structured.
Licensing is mixed
Most skills are Apache 2.0. The four document skills are source-available, not open source. If you plan to fork or redistribute, check the licence on the specific skill rather than assuming the repository-level one applies.
Related
The format itself is documented as an open standard at agentskills.io, which is the better reference if you are implementing skill support rather than writing skills.
Related concepts
Agent Skills
GAFolders of instructions, scripts and resources that Claude loads on demand when a task calls for them — packaged, portable expertise rather than a longer prompt.
Agent Stack
Plugins
GADistributable bundles that install skills, commands, hooks, MCP servers and agents together, discovered through marketplaces.
Agent Stack
Sources
- 01anthropics/skills on GitHubOfficialgithub.com