Update game/gamemaster.py

game/gamemaster.py

@@ -25,10 +25,13 @@ import uuid
 
 from game.engine import ALL_CARD_IDS, ALL_PATTERN_IDS, BLESSINGS, MINION_TYPES
 from game import skills as skillmod
+from game import trace_store
 
 MODEL_ID = "nvidia/Nemotron-Mini-4B-Instruct"
 TRACE_DIR = os.path.join(os.path.dirname(os.path.dirname(__file__)), "traces")
 os.makedirs(TRACE_DIR, exist_ok=True)
+# Background sync of every trace file to a HF dataset repo (no-op if not configured).
+trace_store.start(TRACE_DIR)
 
 # Lazily-initialised globals (loaded once, on first GPU call).
 _tokenizer = None
@@ -482,7 +485,8 @@ def _persist(trace: dict):
         rnd = trace.get("round")
         prefix = f"round_{rnd:03d}" if isinstance(rnd, int) else "skill"
         path = os.path.join(TRACE_DIR, f"{prefix}_{trace['trace_id']}.json")
-        with open(path, "w", encoding="utf-8") as f:
-            json.dump(trace, f, indent=2)
+        with trace_store.lock():
+            with open(path, "w", encoding="utf-8") as f:
+                json.dump(trace, f, indent=2)
     except Exception as e:  # pragma: no cover
         print(f"[gamemaster] failed to write trace: {e}")