Update app.py

app.py

@@ -68,7 +68,10 @@ def get_current_time(
         return f"Invalid timezone or format: {e}"
 @tool
 def validate_final_answer(answer: str) -> str:
-    """Checks final answer for clarity and completeness."""
+    """Checks the final answer for clarity and completeness.
+    Args:
+        answer: The proposed final response generated by the agent
+    """
     issues = []
     if len(answer) < 20:
         issues.append("Answer too short")