From f4df80e093dfc433013fde12f52bb1b32b3f7b85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=AF=97=E6=B5=93?= <nyaashino@gmail.com>
Date: Thu, 10 Jul 2025 20:56:45 +0800
Subject: [PATCH] fix(custom_tool): omit optional parameters instead of setting
 them to None (#22171)

---
 api/core/tools/custom_tool/tool.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/api/core/tools/custom_tool/tool.py b/api/core/tools/custom_tool/tool.py
index 2f5cc6d4c..5cba4cf7f 100644
--- a/api/core/tools/custom_tool/tool.py
+++ b/api/core/tools/custom_tool/tool.py
@@ -213,7 +213,8 @@ class ApiTool(Tool):
                         elif "default" in property:
                             body[name] = property["default"]
                         else:
-                            body[name] = None
+                            # omit optional parameters that weren't provided, instead of setting them to None
+                            pass
                     break
 
         # replace path parameters