Anthropic publishes Agent Skills as an open standard
Anthropic has published its skill mechanism under the banner of an open standard called Agent Skills. The specification is available online and the project repository exposes the source material used to generate the published documentation.
Where the specification lives
The formal specification is hosted at **https://agentskills.io/specification** and the canonical source for that page in the repository is docs/specification.mdx. The repository location for the source file is available on GitHub, providing direct access to the specification's source markdown.
- Specification: https://agentskills.io/specification
- Repo source: docs/specification.mdx
Adoption and ecosystem signals
The Agent Skills homepage lists several projects and companies as adopters or participants in the initiative. These include OpenCode, Cursor, Amp, Letta, goose, GitHub, VS Code and OpenAI. The homepage frames these names as part of the broader effort to encourage uptake of the specification across tooling and platforms.
Original source: Agent Skills