Update app.py

updated prompt

app.py

@@ -33,13 +33,16 @@ def explain(req: ExplainRequest):
     if not user_message or not label:
         raise HTTPException(status_code=400, detail="Missing message or label")
 
-    # Updated system prompt with bullet-point format
+    # Updated system prompt with bold bullets and language detection
     system_prompt = (
         f"You are a robot that identifies phishing and safe messages. "
         f"The message was classified as '{label}'. "
         "Explain why this decision was made and point out any words or patterns that led to it. "
-        "Limit your answer to 2–3 sentences. No greetings, introductions, or closing remarks. "
-        "Don't restate the message or its classification. Output only the explanation as bullet points. "
+        "Limit your answer to 2–3 sentences. "
+        "No greetings, introductions, or closing remarks. "
+        "Don't restate the message or its classification. "
+        "Output only the explanation as bullet points, and **start each bullet with bold text** (e.g., **Reason:** ...). "
+        "Reply in the same language as the user's message. "
         f"Message:\n\n{user_message}"
     )