added calculator

app.py

@@ -75,6 +75,20 @@ def get_current_time_in_timezone(timezone: str) -> str:
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
+@tool
+def calculator_tool(expression: str) -> str:
+    """
+    A tool that evaluates a basic arithmetic expression using a safe calculator function.
+    
+    Args:
+        expression: A string containing a basic arithmetic expression (e.g., "2+2", "3*4").
+    
+    Returns:
+        The result of evaluating the expression as a string.
+    """
+    from Gradio_UI import calculator  # ADDED: Import the safe calculator function
+    return calculator(expression)
+
 
 final_answer = FinalAnswerTool()
 
@@ -97,7 +111,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], ## add your tools here (don't remove final answer)
+    tools=[final_answer, wikipedia_search, calculator_tool], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,