{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/regal-ai/refs/heads/main/json-schema/regal-message-schema.json",
  "title": "RegalMessage",
  "description": "An outbound SMS message sent via the Regal Messages API.",
  "type": "object",
  "required": ["to", "channel"],
  "properties": {
    "to": {
      "type": "object",
      "required": ["phoneNumber"],
      "properties": {
        "phoneNumber": { "type": "string" },
        "contactId": { "type": "string" }
      }
    },
    "from": {
      "type": "object",
      "properties": {
        "phoneNumber": { "type": "string" }
      }
    },
    "channel": { "type": "string", "enum": ["sms"] },
    "content": {
      "type": "object",
      "properties": {
        "body": { "type": "string" },
        "mediaUrl": { "type": "string", "format": "uri" }
      }
    },
    "campaignId": { "type": "integer" }
  }
}