refine desc for arguments

app.py

@@ -11,11 +11,16 @@ from Gradio_UI import GradioUI
 @tool
 def calculator(x:int, y:int, operator:str)-> int: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that calculates math calculations bwteen two integers
+    """A tool that calculates a math operation between two integers.
+
     Args:
-        x: the first int input
-        y: the second int input
-        operator: the operator
+        x (int): The first integer input.
+        y (int): The second integer input.
+        operator (str): The operation to perform. Supported: '+', '-', '*', '/'.
+
+    Returns:
+        int: The result of the calculation.
+
     """
     
     if operator == '+':