{
  "schema": "hasna.comms_message_metadata.v1",
  "id": "msg_announcements_freeze_20260706",
  "createdAt": "2026-07-06T10:00:05.000Z",
  "tag": "FREEZE",
  "envelope": {
    "schema": "hasna.comms_event_envelope.v1",
    "id": "evt_fleet_freeze_20260706",
    "createdAt": "2026-07-06T10:00:00.000Z",
    "type": "fleet.freeze",
    "severity": "critical",
    "scope": "fleet",
    "summary": "Freeze publish, deploy, and shared config apply during the conversations storage cutover",
    "source": {
      "kind": "agent",
      "id": "chief",
      "name": "chief"
    },
    "affected_packages": [],
    "affected_machines": ["spark01", "spark02", "apple01", "apple03", "apple06"],
    "action_required": true,
    "ack_by": "2026-07-06T12:00:00.000Z",
    "dedupe_key": "fleet.freeze:2026-07-06:conversations-storage-cutover",
    "resourceRefs": [],
    "evidenceRefs": []
  }
}