Update app.py

app.py

@@ -513,30 +513,25 @@ print("=" * 50)
 # -----------------------------
 
 def rag_respond(message, history):
-    """Handle chat messages for chatbot UI (messages format)"""
     if history is None:
         history = []
 
-    if not message or not str(message).strip():
-        return "", history
-
     user_msg = str(message)
 
-    history.append({
-        "role": "user",
-        "content": user_msg,
-    })
+    # Append to UI history ONLY
+    history.append({"role": "user", "content": user_msg})
 
+    # ❗ Do NOT pass history to rag_index.answer()
     bot_reply = rag_index.answer(user_msg)
 
-    history.append({
-        "role": "assistant",
-        "content": bot_reply,
-    })
+    # Append assistant reply for UI display
+    history.append({"role": "assistant", "content": bot_reply})
 
+    # Return blank input + updated UI history
     return "", history
 
 
+
 def upload_to_kb(files):
     """Save uploaded files into the KB directory"""
     if not files: