Update app.py

app.py

@@ -19,7 +19,7 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     return "What magic will you build ?"
     
 @tool
-def draw_rectangle(width: int, length: int) -> str: #it's import to specify the return type
+def draw_rectangle(width: int, length: int) -> str:
     """A tool that draws a hollow rectangle using ASCII characters
     Args:
         width: the horizontal width of the rectangle
@@ -34,15 +34,18 @@ def draw_rectangle(width: int, length: int) -> str: #it's import to specify the
     # Create the middle sections (e.g., |   |)
     middle_line = "|" + " " * (width - 2) + "|"
 
-    # Build the rectangle
+    # Build the rectangle list
     rectangle = [horizontal_line]
     
     for _ in range(length - 2):
         rectangle.append(middle_line)
     
+    # Add the bottom line (Outside the loop)
     rectangle.append(horizontal_line)
 
-    return "\n".join(rectangle)
+    # JOIN WITH NEWLINES AND WRAP IN MARKDOWN CODE BLOCK
+    # This is the magic part that fixes the display:
+    return "```\n" + "\n".join(rectangle) + "\n```"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: