{
  "holdout_db": "rel-stack",
  "split": "val",
  "max_hops": 3,
  "alpha": 0.3,
  "note": "This artifact stores raw local subgraphs (all nodes reachable within max_hops=3 hops from each seed). Seeds are temperature-mixed with alpha=0.3 (seed_count^alpha). The BFS heuristic is applied at training/eval time, not stored here. Training table_info keys are namespaced as '{source_db}/{table}:{split}'."
}