AI Catalog Manifest
The publishing half of the standard — the JSON manifest a domain serves at /.well-known/ai-catalog.json declaring who the host is and what agentic resources it offers, each entry typed by media type, identified by a domain-anchored urn:air: URN, and carrying an optional trustManifest for identity, compliance attestations, provenance and a detached JWS signature. Defined upstream by the ai-catalog project and extended here with discovery attributes. This is the artifact an API provider actually has to write.