diff --git a/src/va_agent/notifications.py b/src/va_agent/notifications.py
index fde23a2..0144608 100644
--- a/src/va_agent/notifications.py
+++ b/src/va_agent/notifications.py
@@ -16,9 +16,7 @@ logger = logging.getLogger(__name__)
 class NotificationBackend(Protocol):
     """Backend-agnostic interface for notification storage."""
 
-    async def get_recent_notifications(
-        self, phone_number: str
-    ) -> list[dict[str, Any]]:
+    async def get_recent_notifications(self, phone_number: str) -> list[dict[str, Any]]:
         """Return recent notifications for *phone_number*."""
         ...
 
@@ -51,9 +49,7 @@ class FirestoreNotificationBackend:
         self._max_to_notify = max_to_notify
         self._window_hours = window_hours
 
-    async def get_recent_notifications(
-        self, phone_number: str
-    ) -> list[dict[str, Any]]:
+    async def get_recent_notifications(self, phone_number: str) -> list[dict[str, Any]]:
         """Get recent notifications for a user.
 
         Retrieves notifications created within the configured time window,
@@ -159,9 +155,7 @@ class RedisNotificationBackend:
         self._max_to_notify = max_to_notify
         self._window_hours = window_hours
 
-    async def get_recent_notifications(
-        self, phone_number: str
-    ) -> list[dict[str, Any]]:
+    async def get_recent_notifications(self, phone_number: str) -> list[dict[str, Any]]:
         """Get recent notifications for a user from Redis.
 
         Reads from the ``notification:{phone}`` key, parses the JSON