Spec

The full Folio Spec v1.0 (Draft) lives at SPEC.md in the repo. It defines:

• Source grammar (::: command blocks, @ data blocks, prose)
• Reference engines (insert-table / insert-chart / insert-flow / insert-illustration / insert-interactive)
• HTML output contract (data-folio-* attributes + JSON-LD)
• @foliolang/reader SDK contract
• MIME type, versioning, conformance criteria

Browse it on GitHub for the latest draft. This page is a stable entry point — the canonical source is the repo file.

Spec PRs and discussions: github.com/SilasSolivagus/folio/discussions.