Update app.py

app.py

@@ -20,7 +20,7 @@ agent = CodeAgent(
     model=model,
     tools=[],
     managed_agents=[],
-    agent_class='CodeAgent',  # ✅ Renamed from "class"
+    # ❌ Removed 'class' or 'agent_class' entirely — not valid
     max_steps=20,
     verbosity_level=1,
     grammar=None,