diff --git a/src/memory_manager/tui/app.py b/src/memory_manager/tui/app.py
index 67ab388..871e515 100644
--- a/src/memory_manager/tui/app.py
+++ b/src/memory_manager/tui/app.py
@@ -1,3 +1,5 @@
+"""Textual TUI application for the memory manager."""
+
 import os
 from datetime import datetime
 from typing import Any