diff --git a/api/core/tools/builtin_tool/tool.py b/api/core/tools/builtin_tool/tool.py
index e3a0811381..abba542b8e 100644
--- a/api/core/tools/builtin_tool/tool.py
+++ b/api/core/tools/builtin_tool/tool.py
@@ -1,4 +1,3 @@
-
 from core.model_runtime.entities.llm_entities import LLMResult
 from core.model_runtime.entities.message_entities import PromptMessage, SystemPromptMessage, UserPromptMessage
 from core.tools.__base.tool import Tool