Update app.py

app.py

@@ -44,14 +44,17 @@ def chat_fn(message, history):
 
     context = get_context(message)
 
-    # No valid context? Respond with fallback message
     if not context.strip():
         return "❌ Sorry, I can't answer that."
 
     messages = [
         {
             "role": "system",
-            "content": "You are a helpful assistant. Only use the context below to answer. If you can't find an answer in it, reply: 'Sorry, I can't answer that.'\n\nContext:\n" + context
+            "content": (
+                "You are a concise and helpful assistant. Use only the context below to answer. "
+                "Respond clearly and briefly. Avoid unnecessary details. If the context doesn't contain the answer, reply: "
+                "'Sorry, I can't answer that.'\n\nContext:\n" + context
+            )
         }
     ]
 
@@ -61,7 +64,11 @@ def chat_fn(message, history):
 
     messages.append({"role": "user", "content": message})
 
-    payload = {"model": MODEL, "messages": messages}
+    payload = {
+        "model": MODEL,
+        "messages": messages,
+        "max_tokens": 200  # Optional: limit response length
+    }
 
     try:
         response = requests.post("https://openrouter.ai/api/v1/chat/completions", headers=headers, json=payload)