feat: add Validation mode in FunctionCallingConfig

Google APIs · copybara-github · commit c522f5852155 · 2025-08-28T10:26:34.000-07:00
docs: update the comment for ANY mode in FunctionCallingConfig.
PiperOrigin-RevId: 800520293
diff --git a/google/cloud/aiplatform/v1beta1/tool.proto b/google/cloud/aiplatform/v1beta1/tool.proto
@@ -484,6 +484,8 @@ message ToolConfig {
 message FunctionCallingConfig {
   // Function calling mode.
   enum Mode {
+    reserved 4;
+
     // Unspecified function calling mode. This value should not be used.
     MODE_UNSPECIFIED = 0;
 
@@ -492,14 +494,23 @@ message FunctionCallingConfig {
     AUTO = 1;
 
     // Model is constrained to always predicting function calls only.
-    // If "allowed_function_names" are set, the predicted function calls will be
-    // limited to any one of "allowed_function_names", else the predicted
-    // function calls will be any one of the provided "function_declarations".
+    // If [allowed_function_names][FunctionCallingConfig.allowed_function_names]
+    // are set, the predicted function calls will be limited to any one of
+    // `allowed_function_names`, else the predicted function calls will be any
+    // one of the provided [FunctionDeclaration].
     ANY = 2;
 
     // Model will not predict any function calls. Model behavior is same as when
     // not passing any function declarations.
     NONE = 3;
+
+    // Model is constrained to predict either function calls or natural language
+    // response.
+    // If [allowed_function_names][FunctionCallingConfig.allowed_function_names]
+    // are set, the predicted function calls will be limited to any one of
+    // `allowed_function_names`, else the predicted function calls will be any
+    // one of the provided [FunctionDeclaration].
+    VALIDATED = 5;
   }
 
   // Optional. Function calling mode.
