{
  "artifact": {
    "description": "Build cache access policy. Declares which cache namespaces a mode may read, write, or append-only access, enabling CI/session namespace isolation for build caches stored in an OCI registry.",
    "id": "cache-management",
    "layers": [
      {
        "description": "contract.ncl — CacheManagementContext, CacheEntry, CacheAccessMode",
        "media_type": "application/vnd.ontoref.domain.contract.v1",
        "required": true
      },
      {
        "description": "example.json — sample context for a lian-build CI run",
        "media_type": "application/vnd.ontoref.domain.example.v1",
        "required": false
      }
    ],
    "media_type": "application/vnd.ontoref.domain.v1",
    "uses_registry": "primary",
    "version": "0.1.0"
  }
}