fix(api): add thought signature

Author: stainless-app[bot]

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 10
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/dedalus-labs%2Fdedalus-sdk-82e4c6e626deaf04751afb3b1839b94d69f82906c2b2faba3ddd093e234e8606.yml
-openapi_spec_hash: a86124a17daab9fbb87877dc8c4e2db7
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/dedalus-labs%2Fdedalus-sdk-b71302caf844b08fb78d395acad710e8c65b99b5fad4a5d5b9ae6227d69fbe19.yml
+openapi_spec_hash: 709f0ef9fc5715e20f6b92bd03fce622
 config_hash: d3c873668ecaf594cf79b699a7a2d43a

src/resources/chat/completions.ts

@@ -324,6 +324,7 @@ export namespace ChatCompletionAssistantMessageParam {
    * - id (required): str
    * - type (required): Literal["function"]
    * - function (required): ChatCompletionMessageToolCallFunction
+   * - thought_signature (optional): str
    */
   export interface ChatCompletionMessageToolCallInput {
     /**
@@ -340,6 +341,12 @@ export namespace ChatCompletionAssistantMessageParam {
      * The type of the tool. Currently, only `function` is supported.
      */
     type: 'function';
+
+    /**
+     * Opaque signature for thought continuity in multi-turn tool use (Google-specific,
+     * base64 encoded)
+     */
+    thought_signature?: string | null;
   }
 
   /**
@@ -1410,6 +1417,7 @@ export interface ChatCompletionMessageCustomToolCall {
  * - id (required): str
  * - type (required): Literal["function"]
  * - function (required): Function
+ * - thought_signature (optional): str
  */
 export interface ChatCompletionMessageToolCall {
   /**
@@ -1426,6 +1434,12 @@ export interface ChatCompletionMessageToolCall {
    * The type of the tool. Currently, only `function` is supported.
    */
   type: 'function';
+
+  /**
+   * Opaque signature for thought continuity in multi-turn tool use (Google-specific,
+   * base64 encoded)
+   */
+  thought_signature?: string | null;
 }
 
 /**