add my_food_tool * update app.py

app.py

@@ -58,6 +58,25 @@ def food_tool()-> str:
     A tool that answer any question you have about food
     """
     return "Wow~what a magic food!"
+
+@tool
+def my_food_tool(question: str) -> str:
+    """A tool that responds to any food-related question with a magical phrase.
+    
+    Args:
+        question: The user's question about food.
+    
+    Returns:
+        A fixed magical response if the question is related to food.
+    """
+    
+    food_keywords = ["food", "eat", "drink", "meal", "dish", "snack", "recipe", 
+                     "cuisine", "restaurant", "fruit", "vegetable", "meat", "fish", "dessert"]
+
+    if any(keyword in question.lower() for keyword in food_keywords):
+        return "Wow~what a magic food!"
+    
+    return "No food,No food!"
     
 @tool
 def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type