diff --git a/llmkira/receiver/function.py b/llmkira/receiver/function.py
index 9898ad2f1..45f65a7cf 100644
--- a/llmkira/receiver/function.py
+++ b/llmkira/receiver/function.py
@@ -208,8 +208,8 @@ async def run_pending_task(task: TaskHeader, pending_task: TaskBatch):
         _env_dict = await EnvManager.from_uid(uid=task.receiver.uid).get_env_list(name_list=_tool_obj.env_list)
         assert isinstance(_env_dict, dict), "unexpected env dict? it should be dict..."
         # Resign Chain
-        if (task.task_meta.resign_next_step or task.task_meta.is_complete(
-                num_end=1)) and not _tool_obj.repeatable:
+        if ((task.task_meta.resign_next_step or task.task_meta.is_complete(num_end=1))
+                and not _tool_obj.repeatable):
             logger.debug(f"Function {pending_task.get_batch_name()} need resign chain")
             await chain_func.resign_chain(
                 task=task,
@@ -248,7 +248,7 @@ async def process_function_call(self, message: AbstractIncomingMessage
             logger.trace("No Function Call")
             return None
         pending_task: TaskBatch
-        logger.debug(f"Received A Batch FunctionRequest")
+        logger.debug("Received A Batch FunctionRequest")
         try:
             await self.run_pending_task(task=task, pending_task=pending_task)
         except Exception as e:
diff --git a/llmkira/receiver/receiver_client.py b/llmkira/receiver/receiver_client.py
index f56f243cf..d6c055c44 100644
--- a/llmkira/receiver/receiver_client.py
+++ b/llmkira/receiver/receiver_client.py
@@ -202,7 +202,7 @@ async def llm_request(
             raise Exception(e)
         except httpx.RemoteProtocolError as e:
             logger.error(f"[Network RemoteProtocolError] {e}")
-            raise ReplyNeededError(message=f"Server disconnected without sending a response.")
+            raise ReplyNeededError(message="Server disconnected without sending a response.")
         except ServiceUnavailableError as e:
             logger.error(f"[Service Unavailable Error] {e}")
             raise ReplyNeededError(message=f"[551721]Service Unavailable {e}")
@@ -214,7 +214,7 @@ async def llm_request(
             raise ReplyNeededError(message=f"[551183]Service Provider Error {e}")
         except PydanticValidationError as e:
             logger.exception(e)
-            raise ReplyNeededError(message=f"[551684]Request Data ValidationError")
+            raise ReplyNeededError(message="[551684]Request Data ValidationError")
         except Exception as e:
             logger.exception(e)
             raise e