{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://dina.ai/protocol/schemas/response-envelope.json",
  "title": "Dina Response Envelope",
  "description": "Portable typed response contract used across Dinas, agents, bridges, and clients.",
  "type": "object",
  "required": [
    "schema_version",
    "type",
    "text",
    "data"
  ],
  "properties": {
    "schema_version": {
      "const": "1"
    },
    "type": {
      "type": "string",
      "enum": ["summary", "list", "table", "comparison", "status", "error", "raw"]
    },
    "title": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "data": {
      "type": "object",
      "additionalProperties": true
    },
    "meta": {
      "type": "object",
      "additionalProperties": true
    },
    "annotations": {
      "$ref": "#/$defs/named_items"
    },
    "disclosures": {
      "$ref": "#/$defs/named_items"
    },
    "extensions": {
      "$ref": "#/$defs/extensions"
    }
  },
  "additionalProperties": false,
  "$defs": {
    "named_items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["name"],
        "properties": {
          "name": {
            "type": "string",
            "minLength": 1
          },
          "value": {
            "type": ["string", "number", "integer", "boolean", "object", "array", "null"]
          }
        },
        "additionalProperties": true
      }
    },
    "extensions": {
      "type": "object",
      "propertyNames": {
        "pattern": "^[A-Za-z0-9._:-]+$"
      },
      "additionalProperties": true
    }
  }
}