diff --git a/app/chat_service.py b/app/chat_service.py
index 48fecfb..de738a0 100644
--- a/app/chat_service.py
+++ b/app/chat_service.py
@@ -143,7 +143,6 @@ async def create_universe_conversation(universe_id: str, title: Optional[str] =
         conv = save_conversation(universe_id, session_key, title=title or "Nouvelle conversation")
         return conv
     elif universe_id == "nabil":
-        # Create session explicitly on hermes-nabil backend via session.create RPC
         cookie = await get_nabil_session_cookie()
         ticket = await get_nabil_ws_ticket()
         session_title = title or "Nouvelle conversation"
@@ -157,6 +156,7 @@ async def create_universe_conversation(universe_id: str, title: Optional[str] =
                 ping_interval=20,
                 ping_timeout=20
             ) as ws:
+                # 1. session.create
                 req_id = f"create-{uuid.uuid4().hex[:8]}"
                 await ws.send(json.dumps({
                     "jsonrpc": "2.0",
@@ -165,17 +165,32 @@ async def create_universe_conversation(universe_id: str, title: Optional[str] =
                     "params": {"title": session_title}
                 }))
                 
-                # Wait for session.create result frame
+                short_id = None
                 while True:
                     raw = await asyncio.wait_for(ws.recv(), timeout=6.0)
                     data = json.loads(raw)
                     if data.get("id") == req_id and "result" in data:
                         res = data["result"]
-                        # Prioritize durable stored_session_id (format YYYYMMDD_HHMMSS_xxxxxx) over ephemeral handle
-                        session_key = res.get("stored_session_id") or res.get("session_id")
+                        short_id = res.get("session_id")
+                        session_key = res.get("stored_session_id") or short_id
                         break
+                
+                # 2. session.title (persists the row immediately to state.db under stored_session_id)
+                if short_id:
+                    req_t_id = f"title-{uuid.uuid4().hex[:8]}"
+                    await ws.send(json.dumps({
+                        "jsonrpc": "2.0",
+                        "id": req_t_id,
+                        "method": "session.title",
+                        "params": {"session_id": short_id, "title": session_title}
+                    }))
+                    while True:
+                        raw_t = await asyncio.wait_for(ws.recv(), timeout=6.0)
+                        data_t = json.loads(raw_t)
+                        if data_t.get("id") == req_t_id:
+                            break
+                            
         except Exception:
-            # Fallback if WS fails
             session_key = f"nabil_{uuid.uuid4().hex[:12]}"
             
         conv = save_conversation(universe_id, session_key, title=session_title)
@@ -282,16 +297,13 @@ async def stream_chat_messages(universe_id: str, session_key: str, message: str)
                 }))
                 
                 active_sid = session_key
-                try:
-                    while True:
-                        raw_res = await asyncio.wait_for(ws.recv(), timeout=4.0)
-                        data_res = json.loads(raw_res)
-                        if data_res.get("id") == resume_req_id:
-                            if "result" in data_res:
-                                active_sid = data_res["result"].get("session_id") or session_key
-                            break
-                except Exception:
-                    pass
+                while True:
+                    raw_res = await asyncio.wait_for(ws.recv(), timeout=6.0)
+                    data_res = json.loads(raw_res)
+                    if data_res.get("id") == resume_req_id:
+                        if "result" in data_res:
+                            active_sid = data_res["result"].get("session_id") or session_key
+                        break
                 
                 # 2. Submit prompt with active_sid
                 req_id = f"prompt-{uuid.uuid4().hex[:8]}"