Update app.py

app.py

@@ -58,7 +58,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[image_generation_tool,get_current_time_in_timezone,final_answer,DuckDuckGoSearchTool()], ## add or remove tools here
+    tools=[image_generation_tool,get_current_time_in_timezone,final_answer,DuckDuckGoSearchTool(), tell_a_joke], ## add or remove tools here
     max_steps=6,
     verbosity_level=1,
     grammar=None,