From 522c11a7632944aa889252e9a044dea6219475d4 Mon Sep 17 00:00:00 2001
From: Grace <88872231+gr4ceG@users.noreply.github.com>
Date: Wed, 17 Dec 2025 19:06:56 -0800
Subject: [PATCH] Revert "Omit args and params in tool function def and calls
 (#13516)" (#13518)

This reverts commit 0fadeffaee76c50d84f21e81400c606fcc08c4f8.
---
 api/types.go                | 4 ++--
 server/routes_debug_test.go | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/api/types.go b/api/types.go
index d24178d1..3ccf3ce2 100644
--- a/api/types.go
+++ b/api/types.go
@@ -341,7 +341,7 @@ type ToolFunctionParameters struct {
 	Defs       any                     `json:"$defs,omitempty"`
 	Items      any                     `json:"items,omitempty"`
 	Required   []string                `json:"required,omitempty"`
-	Properties map[string]ToolProperty `json:"properties,omitempty"`
+	Properties map[string]ToolProperty `json:"properties"`
 }
 
 func (t *ToolFunctionParameters) String() string {
@@ -352,7 +352,7 @@ func (t *ToolFunctionParameters) String() string {
 type ToolFunction struct {
 	Name        string                 `json:"name"`
 	Description string                 `json:"description,omitempty"`
-	Parameters  ToolFunctionParameters `json:"parameters,omitempty"`
+	Parameters  ToolFunctionParameters `json:"parameters"`
 }
 
 func (t *ToolFunction) String() string {
diff --git a/server/routes_debug_test.go b/server/routes_debug_test.go
index 012125b5..6f9104c3 100644
--- a/server/routes_debug_test.go
+++ b/server/routes_debug_test.go
@@ -363,7 +363,7 @@ func TestChatDebugRenderOnly(t *testing.T) {
 				DebugRenderOnly: true,
 			},
 			expectDebug:    true,
-			expectTemplate: "[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get weather information\",\"parameters\":{\"type\":\"\"}}}]user: Get the weather\n",
+			expectTemplate: "[{\"type\":\"function\",\"function\":{\"name\":\"get_weather\",\"description\":\"Get weather information\",\"parameters\":{\"type\":\"\",\"properties\":null}}}]user: Get the weather\n",
 		},
 	}