Claude · Schema

ContentBlock

A content block in a message response.

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JSON Schema

claude-contentblock-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ContentBlock",
  "title": "ContentBlock",
  "description": "A content block in a message response.",
  "oneOf": [
    {
      "$ref": "#/components/schemas/TextBlock"
    },
    {
      "$ref": "#/components/schemas/ToolUseBlock"
    },
    {
      "$ref": "#/components/schemas/ThinkingBlock"
    }
  ],
  "discriminator": {
    "propertyName": "type",
    "mapping": {
      "text": "#/components/schemas/TextBlock",
      "tool_use": "#/components/schemas/ToolUseBlock",
      "thinking": "#/components/schemas/ThinkingBlock"
    }
  }
}