From 138c4cbfcf5734d882c4b6ae27fe596223c25a41 Mon Sep 17 00:00:00 2001
From: Fu-Jie <33599649+Fu-Jie@users.noreply.github.com>
Date: Mon, 9 Mar 2026 05:46:56 +0800
Subject: [PATCH] fix: filter out internal tool methods starting with
 underscore (#22408)

---
 backend/open_webui/utils/tools.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/open_webui/utils/tools.py b/backend/open_webui/utils/tools.py
index 081e2f5fa..e525a8284 100644
--- a/backend/open_webui/utils/tools.py
+++ b/backend/open_webui/utils/tools.py
@@ -707,8 +707,8 @@ def get_functions_from_tool(tool: object) -> list[Callable]:
             getattr(tool, func)
         )  # checks if the attribute is callable (a method or function).
         and not func.startswith(
-            "__"
-        )  # filters out special (dunder) methods like init, str, etc. — these are usually built-in functions of an object that you might not need to use directly.
+            "_"
+        )  # filters out internal methods (starting with _) and special (dunder) methods.
         and not inspect.isclass(
             getattr(tool, func)
         )  # ensures that the callable is not a class itself, just a method or function.