Update api.py

utils/api.py

@@ -321,7 +321,7 @@ def record_profit_puzzler_play(user_id: int, scenario_id: str, title: str,
     return _json_or_raise(_req("POST", "/games/profit_puzzler/record", json=payload))
 
 # ---------- RAG passthrough ----------
-def retrieve(query: str, lesson_id: int, level_slug: str = "beginner", k: int = 5) -> str:
+def retrieve(query: str, lesson_id: int, level_slug: str = "beginner", k: int = 3) -> str:
     try:
         d = _json_or_raise(_req("GET", "/retrieve",
                                 params={"query": query, "lesson_id": lesson_id, "level_slug": level_slug, "k": k}))