diff --git a/scripts/interest_monitor_gui.py b/scripts/interest_monitor_gui.py
index fb61eefde..4e688a301 100644
--- a/scripts/interest_monitor_gui.py
+++ b/scripts/interest_monitor_gui.py
@@ -192,7 +192,7 @@ class InterestMonitorApp:
             main_mind_entries.sort(key=lambda x: x[0])
             recent_entries = main_mind_entries[-MAX_QUEUE_SIZE:]
             self.main_mind_history.clear()
-            for ts, entry in recent_entries:
+            for _ts, entry in recent_entries:
                 self.main_mind_history.append(entry)
             if recent_entries:
                 self.last_main_mind_timestamp = recent_entries[-1][0]
diff --git a/src/heart_flow/mai_state_manager.py b/src/heart_flow/mai_state_manager.py
index 4d92d7fd8..a3ff34e1d 100644
--- a/src/heart_flow/mai_state_manager.py
+++ b/src/heart_flow/mai_state_manager.py
@@ -144,7 +144,7 @@ class MaiStateManager:
         # 辅助函数：根据 prevent_offline_state 标志调整目标状态
         def _resolve_offline(candidate_state: MaiState) -> MaiState:
             if prevent_offline_state and candidate_state == MaiState.OFFLINE:
-                logger.debug(f"阻止进入 OFFLINE，改为 PEEKING")
+                logger.debug("阻止进入 OFFLINE，改为 PEEKING")
                 return MaiState.PEEKING
             return candidate_state