Update app.py

app.py

@@ -14,7 +14,9 @@ st.write("Get recommendations for optimizing your AWS architecture.")
 
 # Session state to store messages (conversation history)
 if "messages" not in st.session_state:
-    st.session_state.messages = []
+    st.session_state.messages = [
+        {"role": "system", "content": "You are an assistant that provides recommendations based on AWS Well-Architected Review best practices. Focus on the 5 pillars: Operational Excellence, Security, Reliability, Performance Efficiency, and Cost Optimization."}
+    ]
 
 # User input for AWS architecture description
 architecture_input = st.text_area("Describe your AWS architecture:")