let oci = import "schemas/lib/integration/oci_artifact_format.ncl" in

{
  artifact = {
    media_type  = "application/vnd.ontoref.domain.v1",
    id          = "event-emission",
    version     = "0.1.0",
    description = "Async event emission protocol. Participants publish lifecycle events (requested/progress/completed/failed) to NATS subjects. Subject prefix is injected via cabling to avoid cross-Mode collisions.",
    layers = [
      {
        media_type  = "application/vnd.ontoref.domain.contract.v1",
        description = "contract.ncl — EventEnvelope schema + EventEmissionInputs (subject_prefix requirement)",
        required    = true,
      },
    ],
    uses_registry = "primary",
  } | oci.DomainArtifact,
}