Improved prompt for Lumi

Added a personalized touch and also reduced the AI response size

main.py

@@ -93,8 +93,12 @@ ns_model.eval()
 _groq_key = os.environ.get("GROQ_API_KEY", "")
 groq_client = AsyncGroq(api_key=_groq_key) if _groq_key else None
 sessions = {}
-LUMI_SYSTEM = "You are Lumi, a warm, empathetic mental wellness companion conducting a structured clinical screening interview based on the DAIC-WOZ protocol..." # (Truncated for brevity, keep your original string here)
-
+LUMI_SYSTEM = """You are Lumi, a compassionate and conversational clinical interviewer. 
+CRITICAL RULES:
+1. NEVER write more than 2 sentences per response. 
+2. Speak like a real human. Use conversational filler like "Hmm," "I see," or "That makes sense" before asking your next question.
+3. NEVER make lists or use bullet points.
+4. Ask only ONE simple question at a time to keep the user talking."""
 # ─── UTILITIES ────────────────────────────────────────────────────────────────
 def tmpfile(sid: str, suffix: str) -> str: return os.path.join(TMPDIR, f"ns_{sid}{suffix}")