diff --git a/src/fabledassistant/services/tools.py b/src/fabledassistant/services/tools.py
index 22f7b02..f9b28da 100644
--- a/src/fabledassistant/services/tools.py
+++ b/src/fabledassistant/services/tools.py
@@ -1238,7 +1238,7 @@ async def execute_tool(user_id: int, tool_name: str, arguments: dict) -> dict:
                 all_day = True
                 start_str = f"{start_str}T00:00:00"
             try:
-                start_dt = datetime.fromisoformat(start_str)  # noqa: F823 (false positive — datetime is imported at module level)
+                start_dt = datetime.fromisoformat(start_str)
             except (ValueError, TypeError):
                 return {"success": False, "error": f"Invalid start datetime: {start_str!r}"}
             end_dt = None
@@ -1705,7 +1705,7 @@ async def execute_tool(user_id: int, tool_name: str, arguments: dict) -> dict:
             from fabledassistant.services.weather import (
                 get_cached_weather, geocode, _fetch_open_meteo, parse_forecast
             )
-            from datetime import datetime, timezone as _tz
+            from datetime import timezone as _tz
             location = (arguments.get("location") or "").strip()
             _known = {"home", "work", "all", ""}
             if location.lower() not in _known: