Open-source Skills

Anthropic’s open-source skills — the substrate any session can extend.

Anthropic publishes a catalogue of skills as open source, each a self-contained SKILL.md plus its scripts and references. They’re worked examples of the format — read them, fork them, or write your own. The four below are the ones most useful in an enterprise build; the full set lives on GitHub.

AnthropicSKILL.mdopen sourcefork & extend

Browse the full catalogue

All skills are public at github.com/anthropics/skills — 17 skills across document, development, enterprise and creative categories, plus the spec and a skill template.

The skills we feature

Skill Creator Build and benchmark skills — draft, eval against a baseline, tune the description for triggering.

MCP Builder Turn an API into tools an agent can use — four phases, typed schemas, a 10-question eval.

Internal Communications Write internal comms in your company's own formats — 3P updates, newsletters, FAQs, incident reports.

Doc Co-Authoring Co-author docs in three stages — gather context, build section by section, reader-test on a fresh Claude.

Read next

anthropics/skills on GitHub The official open-source catalogue, spec, and template.

Back to Skills The section overview.

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