{
  "$id": "https://stella-ops.org/schemas/events/scheduler.rescan.delta@1.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": ["eventId", "kind", "tenant", "ts", "payload"],
  "properties": {
    "eventId": {"type": "string", "format": "uuid"},
    "kind": {"const": "scheduler.rescan.delta"},
    "tenant": {"type": "string"},
    "ts": {"type": "string", "format": "date-time"},
    "payload": {
      "type": "object",
      "required": ["scheduleId", "impactedDigests", "summary"],
      "properties": {
        "scheduleId": {"type": "string"},
        "impactedDigests": {
          "type": "array",
          "items": {"type": "string"}
        },
        "summary": {
          "type": "object",
          "properties": {
            "newCritical": {"type": "integer", "minimum": 0},
            "newHigh": {"type": "integer", "minimum": 0},
            "total": {"type": "integer", "minimum": 0}
          }
        }
      },
      "additionalProperties": true
    },
    "attributes": {
      "type": "object",
      "description": "Optional event attributes for downstream correlation.",
      "additionalProperties": true
    }
  },
  "additionalProperties": false
}