diff --git a/backend/service/workflow_rewrite_tools.py b/backend/service/workflow_rewrite_tools.py
index 2afda51..7881ff0 100644
--- a/backend/service/workflow_rewrite_tools.py
+++ b/backend/service/workflow_rewrite_tools.py
@@ -62,6 +62,7 @@ def get_current_workflow() -> str:
         return json.dumps({"error": "No workflow data found for this session"})
     return json.dumps(workflow_data)
 
+@function_tool
 async def get_node_info(node_class: str) -> str:
     """获取节点的详细信息，包括输入输出参数"""
     try:
@@ -80,18 +81,18 @@ async def get_node_info(node_class: str) -> str:
     except Exception as e:
         return json.dumps({"error": f"Failed to get node info: {str(e)}"})
 
-@function_tool
-async def get_node_infos(node_class_list: List[str]) -> str:
-    """获取多个节点的详细信息，包括输入输出参数"""
-    try:
-        node_infos = []
-        for node_class in node_class_list:
-            node_info = await get_node_info(node_class)
-            if node_info:
-                node_infos.append(node_info)
-        return json.dumps(node_infos)
-    except Exception as e:
-        return json.dumps({"error": f"Failed to get node infos of {','.join(node_class_list)}: {str(e)}"})
+# @function_tool
+# async def get_node_infos(node_class_list: List[str]) -> str:
+#     """获取多个节点的详细信息，包括输入输出参数"""
+#     try:
+#         node_infos = []
+#         for node_class in node_class_list:
+#             node_info = await get_node_info(node_class)
+#             if node_info:
+#                 node_infos.append(node_info)
+#         return json.dumps(node_infos)
+#     except Exception as e:
+#         return json.dumps({"error": f"Failed to get node infos of {','.join(node_class_list)}: {str(e)}"})
 
 def save_checkpoint_before_modification(session_id: str, action_description: str) -> Optional[int]:
     """在修改工作流前保存checkpoint，返回checkpoint_id"""