ReasoningContent

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ReasoningContent",
  "title": "ReasoningContent",
  "properties": {
    "type": {
      "type": "string",
      "const": "reasoning",
      "title": "Type",
      "description": "Indicates this is a reasoning/intermediate step.",
      "default": "reasoning"
    },
    "is_native": {
      "type": "boolean",
      "title": "Is Native",
      "description": "Whether the reasoning content was generated by a reasoner model that processed this step."
    },
    "reasoning": {
      "type": "string",
      "title": "Reasoning",
      "description": "The intermediate reasoning or thought process content."
    },
    "signature": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Signature",
      "description": "A unique identifier for this reasoning step."
    }
  },
  "type": "object",
  "required": [
    "is_native",
    "reasoning"
  ],
  "description": "Sent via the Anthropic Messages API"
}