Claude · Schema

ThinkingBlockParam

A thinking content block in a request (for multi-turn with extended thinking).

Artificial IntelligenceChatbotsConversational AIGenerative AILarge Language ModelsMachine-LearningNatural Language Processing

Properties

Name	Type	Description
type	string
thinking	string	The thinking text from a previous response.
signature	string	The signature from the previous thinking block.

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ThinkingBlockParam",
  "title": "ThinkingBlockParam",
  "type": "object",
  "description": "A thinking content block in a request (for multi-turn with extended thinking).",
  "required": [
    "type",
    "thinking",
    "signature"
  ],
  "properties": {
    "type": {
      "type": "string",
      "const": "thinking",
      "example": "example_value"
    },
    "thinking": {
      "type": "string",
      "description": "The thinking text from a previous response.",
      "example": "example_value"
    },
    "signature": {
      "type": "string",
      "description": "The signature from the previous thinking block.",
      "example": "example_value"
    }
  }
}