Fixing system promt ? - What wind.surf will do ?

app.py

@@ -50,7 +50,10 @@ def respond(
     if current_model is None or model_name not in str(current_model.model_path):
         current_model = load_model(model_name)
     
-    messages = [{"role": "system", "content": system_message}]
+    # Start with system message
+    messages = []
+    if system_message and system_message.strip():
+        messages.append({"role": "system", "content": system_message})
 
     # Convert history to messages format
     for msg in history:
@@ -62,21 +65,22 @@ def respond(
         else:
             messages.append(msg)
 
+    # Add current message
     messages.append({"role": "user", "content": message})
 
-    response = ""
+    # Generate response
     response = current_model.create_chat_completion(
-            messages=messages,
-            stream=True,
-            max_tokens=max_tokens,
-            temperature=temperature,
-            top_p=top_p
-        )
+        messages=messages,
+        stream=True,
+        max_tokens=max_tokens,
+        temperature=temperature,
+        top_p=top_p
+    )
+    
     message_repl = ""
     for chunk in response:
         if len(chunk['choices'][0]["delta"]) != 0 and "content" in chunk['choices'][0]["delta"]:
-            message_repl = message_repl + \
-                chunk['choices'][0]["delta"]["content"]
+            message_repl = message_repl + chunk['choices'][0]["delta"]["content"]
         yield message_repl
 
 def get_chat_title(model_name):