{
  "host_payload": {
    "kind": "capability.checked",
    "data": {
      "health": [
        {
          "id": "guidance",
          "name": "guidance delivery",
          "scope": "main",
          "status": "degraded",
          "observed_ms": 1000,
          "valid_until_ms": 5000,
          "origin": "checker",
          "impact": "operator guidance delayed",
          "evidence": "probe timed out after 500ms"
        },
        {
          "id": "context_assembly",
          "name": "context assembly",
          "scope": "retrieval",
          "status": "healthy",
          "observed_ms": 1000,
          "valid_until_ms": 60000,
          "origin": "system"
        }
      ],
      "work_items": [
        {
          "id": "repair1",
          "title": "repair guidance",
          "purpose": "maintenance",
          "status": "pending",
          "origin": "agent",
          "created_ms": 1000,
          "selection_reason": "reliability repair for guidance lane"
        }
      ],
      "candidate": {
        "candidate_id": "c1",
        "base_revision": "old",
        "target_revision": "new",
        "status": "testing",
        "epoch": 2,
        "test_receipts": [
          {
            "suite_id": "suite_smoke",
            "passed": true,
            "duration_ms": 142
          }
        ]
      }
    }
  },
  "v2_event_record": {
    "seq": 10,
    "session_id": "host-wire",
    "lane": "lifecycle",
    "payload": {
      "kind": "capability.checked",
      "data": {
        "health": [
          {
            "id": "guidance",
            "name": "guidance delivery",
            "scope": "main",
            "status": "degraded",
            "observed_ms": 1000,
            "valid_until_ms": 5000,
            "origin": "checker",
            "impact": "operator guidance delayed",
            "evidence": "probe timed out after 500ms"
          }
        ],
        "work_items": [
          {
            "id": "repair1",
            "title": "repair guidance",
            "purpose": "maintenance",
            "status": "pending",
            "origin": "agent",
            "created_ms": 1000,
            "selection_reason": "reliability repair for guidance lane"
          }
        ],
        "candidate": {
          "candidate_id": "c1",
          "base_revision": "old",
          "target_revision": "new",
          "status": "testing"
        }
      }
    },
    "created_ms": 1010
  },
  "v2_server_msg": {
    "type": "event",
    "record": {
      "seq": 10,
      "session_id": "host-wire",
      "lane": "lifecycle",
      "payload": {
        "kind": "capability.checked",
        "data": {
          "health": [
            {
              "id": "guidance",
              "name": "guidance delivery",
              "scope": "main",
              "status": "degraded",
              "observed_ms": 1000,
              "origin": "checker"
            }
          ],
          "work_items": [
            {
              "id": "repair1",
              "title": "repair guidance",
              "purpose": "maintenance",
              "status": "pending",
              "origin": "agent",
              "created_ms": 1000
            }
          ],
          "candidate": {
            "candidate_id": "c1",
            "base_revision": "old",
            "target_revision": "new",
            "status": "testing"
          }
        }
      },
      "created_ms": 1010
    }
  },
  "single_health_event": {
    "seq": 11,
    "session_id": "host-wire",
    "lane": "lifecycle",
    "payload": {
      "kind": "capability.health",
      "data": {
        "id": "db_integrity",
        "name": "database integrity",
        "scope": "storage",
        "status": "healthy",
        "observed_ms": 2000,
        "origin_kind": "system",
        "reporter_id": "integrity_check"
      }
    },
    "created_ms": 2000
  },
  "single_work_event": {
    "seq": 12,
    "session_id": "host-wire",
    "lane": "lifecycle",
    "payload": {
      "kind": "work.updated",
      "data": {
        "id": "maint_vacuum",
        "purpose": "vacuum database",
        "status": "selected",
        "origin_kind": "system",
        "reporter_id": "scheduler",
        "created_ms": 2010,
        "selection_reason": "storage optimization"
      }
    },
    "created_ms": 2010
  },
  "single_candidate_event": {
    "seq": 13,
    "session_id": "host-wire",
    "lane": "lifecycle",
    "payload": {
      "kind": "candidate.updated",
      "data": {
        "candidate": {
          "candidate_id": "cand_v2",
          "base_revision": "rev1",
          "target_revision": "rev2",
          "status": "active"
        }
      }
    },
    "created_ms": 2020
  }
}