docs/api/mods-reference.md lists every capability, world, interface, type,
function and hook of horizon:mods, generated from
crates/horizon-mod-sdk/wit/horizon.wit and the manifest's capabilities by a
test in horizon-mods (feature pack, as CI runs it). The test fails when the
page is out of date (HORIZON_WRITE_DOCS=1 rewrites it), when a function has
no doc comment, or when a capability grants an interface the contract lacks.
The WIT's undocumented functions and fields get doc comments (no change to
the contract itself).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>