diff --git a/src/chat/focus_chat/hfc_utils.py b/src/chat/focus_chat/hfc_utils.py
index 496239851..0e7fe6a2c 100644
--- a/src/chat/focus_chat/hfc_utils.py
+++ b/src/chat/focus_chat/hfc_utils.py
@@ -5,11 +5,8 @@ from src.chat.message_receive.chat_stream import ChatStream
 from src.chat.message_receive.message import UserInfo
 from src.common.logger import get_logger
 import json
-import time
 import os
-from typing import Optional, Dict, Any
-from src.common.logger import get_logger
-import json
+from typing import Dict, Any
 
 logger = get_logger(__name__)
 
diff --git a/src/chat/planner_actions/action_modifier.py b/src/chat/planner_actions/action_modifier.py
index 426c54657..44acabf9c 100644
--- a/src/chat/planner_actions/action_modifier.py
+++ b/src/chat/planner_actions/action_modifier.py
@@ -2,7 +2,6 @@ from typing import List, Optional, Any, Dict
 from src.chat.focus_chat.observation.observation import Observation
 from src.common.logger import get_logger
 from src.chat.focus_chat.observation.hfcloop_observation import HFCloopObservation
-from src.chat.focus_chat.observation.chatting_observation import ChattingObservation
 from src.chat.message_receive.chat_stream import get_chat_manager
 from src.config.config import global_config
 from src.llm_models.utils_model import LLMRequest