{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://docs.stella-ops.org/events/scheduler.rescan.delta@1.json",
  "title": "Scheduler Rescan Delta Event",
  "description": "Emitted when a scheduled rescan detects vulnerability changes",
  "type": "object",
  "required": ["eventId", "kind", "version", "tenant", "ts", "payload"],
  "properties": {
    "eventId": {
      "type": "string",
      "format": "uuid",
      "description": "Unique event identifier"
    },
    "kind": {
      "const": "scheduler.rescan.delta",
      "description": "Event kind"
    },
    "version": {
      "const": "1",
      "description": "Schema version"
    },
    "tenant": {
      "type": "string",
      "description": "Tenant identifier"
    },
    "ts": {
      "type": "string",
      "format": "date-time",
      "description": "Event timestamp in ISO 8601 format"
    },
    "actor": {
      "type": "string",
      "description": "Service or user that triggered the event"
    },
    "payload": {
      "type": "object",
      "required": ["scheduleId", "deltaId"],
      "properties": {
        "scheduleId": {
          "type": "string",
          "description": "Schedule identifier"
        },
        "deltaId": {
          "type": "string",
          "description": "Delta report identifier"
        },
        "imagesAffected": {
          "type": "integer",
          "description": "Number of images affected"
        },
        "newVulnerabilities": {
          "type": "integer",
          "description": "Number of new vulnerabilities detected"
        },
        "resolvedVulnerabilities": {
          "type": "integer",
          "description": "Number of resolved vulnerabilities"
        },
        "links": {
          "type": "object",
          "properties": {
            "schedule": { "type": "string", "format": "uri" },
            "delta": { "type": "string", "format": "uri" }
          }
        }
      }
    },
    "attributes": {
      "type": "object",
      "additionalProperties": { "type": "string" }
    }
  }
}