diff --git a/src/chat/utils/utils.py b/src/chat/utils/utils.py
index 18542f9f..32664ec9 100644
--- a/src/chat/utils/utils.py
+++ b/src/chat/utils/utils.py
@@ -263,7 +263,8 @@ def split_into_sentences_w_remove_punctuation(text: str) -> list[str]:
     len_text = len(text)
     if len_text < 3:
         stripped_text = text.strip()
-        if not stripped_text: return []
+        if not stripped_text:
+            return []
         if len(stripped_text) == 1 and stripped_text in SEPARATORS:
             return []
         return [stripped_text]
diff --git a/src/config/config.py b/src/config/config.py
index ff21404c..a4dedcc2 100644
--- a/src/config/config.py
+++ b/src/config/config.py
@@ -1,7 +1,6 @@
 # TODO: 更多的可配置项
 # TODO: 所有模型单独分离，温度可配置
 # TODO: 原生多模态支持
-from importlib.util import spec_from_file_location
 import os
 import re
 from dataclasses import dataclass, field
diff --git a/src/experimental/PFC/actions.py b/src/experimental/PFC/actions.py
index 45510e86..9978e0a3 100644
--- a/src/experimental/PFC/actions.py
+++ b/src/experimental/PFC/actions.py
@@ -3,7 +3,6 @@ import asyncio
 import datetime
 import traceback
 import json
-import os
 from typing import Optional, Set, TYPE_CHECKING
 from src.chat.emoji_system.emoji_manager import emoji_manager
 from src.common.logger_manager import get_logger
@@ -12,7 +11,6 @@ from src.chat.utils.chat_message_builder import build_readable_messages
 from .pfc_types import ConversationState
 from .observation_info import ObservationInfo
 from .conversation_info import ConversationInfo
-from src.chat.emoji_system.emoji_manager import emoji_manager
 from src.chat.utils.utils_image import image_path_to_base64 # 假设路径正确
 from maim_message import Seg, UserInfo # 从 maim_message 导入 Seg 和 UserInfo
 from src.chat.message_receive.message import MessageSending, MessageSet # PFC 的发送器依赖这些
@@ -747,7 +745,7 @@ async def handle_action(
                                     "user_info": bot_user_info.to_dict(),
                                     "processed_plain_text": f"[表情包: {emoji_description}]",
                                     "detailed_plain_text": f"[表情包: {emoji_path} - {emoji_description}]",
-                                    "raw_message": f"[CQ:image,file=base64://...]" # 示例
+                                    "raw_message": "[CQ:image,file=base64://...]" # 示例
                                 }
                                 observation_info.chat_history.append(bot_meme_message_dict)
                                 observation_info.chat_history_count = len(observation_info.chat_history)
diff --git a/src/experimental/PFC/conversation.py b/src/experimental/PFC/conversation.py
index bc421a2d..59ba3870 100644
--- a/src/experimental/PFC/conversation.py
+++ b/src/experimental/PFC/conversation.py
@@ -1,10 +1,7 @@
 import time
 import asyncio
 import traceback
-import os
 from typing import Dict, Any, Optional
-from src.chat.emoji_system.emoji_manager import emoji_manager
-from maim_message import Seg
 from src.common.logger_manager import get_logger
 from maim_message import UserInfo
 from src.chat.message_receive.chat_stream import chat_manager, ChatStream
diff --git a/src/experimental/PFC/pfc_utils.py b/src/experimental/PFC/pfc_utils.py
index 32ad995a..adcf03b2 100644
--- a/src/experimental/PFC/pfc_utils.py
+++ b/src/experimental/PFC/pfc_utils.py
@@ -473,7 +473,7 @@ def get_items_from_json(
         Tuple[bool, Union[Dict[str, Any], List[Dict[str, Any]]]]: (是否成功, 提取的字段字典或字典列表)
     """
     cleaned_content = content.strip()
-    result: Union[Dict[str, Any], List[Dict[str, Any]]] = {}
+    _result: Union[Dict[str, Any], List[Dict[str, Any]]] = {}
     markdown_match = re.search(r"```(?:json)?\s*([\s\S]*?)\s*```", cleaned_content, re.IGNORECASE)
     if markdown_match:
         cleaned_content = markdown_match.group(1).strip()
@@ -605,7 +605,8 @@ def get_items_from_json(
             valid_single_object = False
             break
     
-    if not valid_single_object: return False, default_result.copy() # 如果字段缺失，则校验失败
+    if not valid_single_object:
+        return False, default_result.copy() # 如果字段缺失，则校验失败
 
     if required_types:
         for field, expected_type in required_types.items():
@@ -616,7 +617,8 @@ def get_items_from_json(
                 valid_single_object = False
                 break
     
-    if not valid_single_object: return False, default_result.copy() # 如果类型错误，则校验失败
+    if not valid_single_object:
+        return False, default_result.copy() # 如果类型错误，则校验失败
 
     for field in items:
         if field in current_single_result and \