{
  "fixture": "infrastructure-edge-host-composition-v1",
  "catalogVersion": "ontology-core-v0.4-pre+infrastructure-domain-0.1.0",
  "host": { "entityId": "infrastructure.host", "sourceId": "host:robot2b-edge-01", "kind": "vps" },
  "endpoint": { "entityId": "infrastructure.endpoint", "sourceId": "endpoint:robot2b-edge-01:https", "visibility": "core-egress-only" },
  "deployment": { "entityId": "infrastructure.deployment", "sourceId": "deployment:device-edge:20260822-001" },
  "serviceInstance": { "entityId": "infrastructure.service_instance", "sourceId": "service-instance:device-edge:robot2b-edge-01" },
  "edgeRegistration": { "entityId": "device.edge_registration", "sourceId": "edge-registration:robot2b-edge-01" },
  "healthObservation": {
    "entityId": "observation.health_observation",
    "subjectSourceId": "service-instance:device-edge:robot2b-edge-01",
    "propertyId": "service.readiness",
    "observedAt": "2026-08-22T10:00:00Z",
    "receivedAt": "2026-08-22T10:00:00Z",
    "freshnessPolicyId": "health:service-readiness:60s"
  },
  "management": {
    "credentialEntityId": "infrastructure.management_credential_reference",
    "secretExposure": "opaque-reference-only",
    "consoleEntityId": "infrastructure.management_session",
    "mode": "privileged-break-glass"
  },
  "assertions": [
    "host, endpoint, deployment, service instance and edge registration use distinct ids",
    "integration.connection is not a host",
    "missing health evidence is not automatically unhealthy",
    "no management secret reaches the browser",
    "map projection requires real spatial evidence"
  ]
}