Update app.py

app.py

@@ -26,6 +26,8 @@ cache= {}
 web_search = DuckDuckGoSearchTool()
 python_interpreter = PythonInterpreterTool()
 visit_webpage_tool = VisitWebpageTool()
+wiki_tool = WikiTool()
+
 #model_math_tool = ModelMathTool()
 
 # If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder: