{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://tradecat.local/contracts/tradecat-command-envelope.schema.json",
  "title": "TradeCat Command Envelope",
  "type": "object",
  "required": ["schema", "schema_version"],
  "properties": {
    "schema": {
      "type": "string",
      "pattern": "^tradecat\\.[a-z0-9_]+\\.v[0-9]+$"
    },
    "schema_version": {
      "type": "string",
      "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$"
    },
    "command": {
      "type": "string"
    },
    "ok": {
      "type": "boolean"
    },
    "error": {
      "$ref": "tradecat-error.schema.json"
    }
  },
  "additionalProperties": true
}