Update app.py

Improved the docstring to guide the agent better.

app.py

@@ -21,12 +21,19 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
 
 @tool
 def get_temperature(location: str, temp_scale: str = "celsius") -> tuple[float, str]:
-    """A tool that fetches the current temperature for a given location.
+    """A tool that fetches the current temperature and provides a qualitative description.
     Args:
         location: The name of the city/location
         temp_scale: Temperature scale to use ('celsius' or 'fahrenheit')
-            Returns:
-        tuple: (temperature value as float, unit as string 'C' or 'F', qualitative description)
+    Returns:
+        tuple: A tuple containing:
+            - temperature (float): The numerical temperature value
+            - unit (str): The temperature unit ('C' or 'F')
+            - description (str): How the temperature feels (freezing/cold/mild/warm/hot)
+    Usage:
+        temp, unit, feel = get_temperature("Warsaw", "celsius")
+        Example output: (-2.4, 'C', 'freezing')
+        Formatted: "The current temperature in Warsaw is -2.4°C - it feels freezing"
     """
     def get_description(temp_c: float) -> str:
         """Get qualitative description based on Celsius temperature"""