Standard

The normative text is spec/ in the repository, format 0.1.0. Schemas are beside it in schemas/.

The specification and those schemas are CC0. The checker in this repository is MIT. Pinned copies of child xFacts schemas keep their own MIT license.

This website is not the specification. llms.txt in the repository points at the specification. It does not embed the specification.

An openly published specification is not certification by a standards body.