{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "array",
  "items": {
    "type": "object",
    "additionalProperties": false,
    "required": ["id", "severity", "title", "message", "seen_at", "resolved_at", "created_at"],
    "properties": {
      "id": { "type": "string", "format": "uuid" },
      "severity": { "type": "string", "enum": ["info", "warning", "error"] },
      "title": { "type": "string" },
      "message": { "type": "string" },
      "seen_at": { "type": ["string", "null"], "format": "date-time" },
      "resolved_at": { "type": ["string", "null"], "format": "date-time" },
      "created_at": { "type": "string", "format": "date-time" }
    }
  }
}