fixes

app.py

@@ -11,7 +11,7 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 
 class BasicAgent:
     def __init__(self):
-        # Initialize CodeAgent with an OpenAI model and custom AnswerTool
+        # Initialize CodeAgent with GPT-4o and only the custom AnswerTool
         model = OpenAIServerModel(model_id="gpt-4o")
         answer_tool = AnswerTool()
         self.agent = CodeAgent(
@@ -23,7 +23,7 @@ class BasicAgent:
         )
 
     def __call__(self, question: str) -> str:
-        # Execute a single step to call the AnswerTool
+        # Single-step invocation of AnswerTool
         return self.agent.run(question)
 
 
@@ -119,4 +119,4 @@ with gr.Blocks() as demo:
     test_btn.click(fn=test_random_question, inputs=[username_input], outputs=[question_out, answer_out])
 
 if __name__ == "__main__":
-    demo.launch(debug=True, share=False)
+    demo.launch(debug=True, share=False)