[
  {
    "_note": "Tritower with GatedAdditiveBridge — per-sample sigmoid gates over each stream. 3 reps.",
    "run_name": "experiments/tri_v1/altbridge/gated",
    "reps": 3,
    "stage_overrides": {
      "nt": {
        "module": "v4.classes.bridges.gated_bridge",
        "class":  "GatedAdditiveBridge",
        "args":   { "fusion_dim": 256 }
      }
    }
  }
]