{
  "$schema": "https://json-schema.org/draft/2020-12",
  "$id": "https://schema.api-evangelist.com/actor-model/actor-model-actormessage-schema.json",
  "title": "ActorMessage",
  "description": "A message to be placed in an actor's mailbox",
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "description": "Message type discriminator",
      "example": "UpdateProfile"
    },
    "payload": {
      "type": "object",
      "description": "Message payload",
      "additionalProperties": true
    },
    "replyTo": {
      "type": "string",
      "description": "Actor ID to send reply to (optional)",
      "example": "caller-actor-456"
    },
    "correlationId": {
      "type": "string",
      "description": "Correlation ID for tracing",
      "example": "trace-xyz-789"
    },
    "priority": {
      "type": "string",
      "enum": [
        "high",
        "normal",
        "low"
      ],
      "description": "Message priority in mailbox",
      "example": "normal"
    }
  }
}