{
  "description": "AEGIS deployed gate configuration, frozen before the confirmatory n=700 factorial (arXiv:2606.06660). The conformal threshold itself ships inside probe_artifact.npz.",
  "weak_policy": "smolvla_libero (SmolVLA, 450M)",
  "strong_policy": "pi05_libero_finetuned (pi-0.5, 4.14B)",
  "probe": {
    "hook": "model.vlm_with_expert.lm_expert.layers[15].self_attn.o_proj",
    "feature_dim": 720,
    "pooling": "mean over the 10-token action chunk",
    "head": "standardized logistic regression (mu, sd, w, b in probe_artifact.npz)",
    "trained_on": "early-window steps (t <= 0.30 T) against eventual episode outcome; trajectory-level 70/15/15 split",
    "liveness_check": "std of captured feature over steps must exceed 0.05 (guards against the frozen-cache hook bug)"
  },
  "gate": {
    "conformal_alpha": 0.10,
    "conformal_threshold": "see probe_artifact.npz['conformal_threshold']",
    "early_harm_guard_tmin": "max(0.20 * T, 2)",
    "budget_cap_kmax": "ceil(0.05 * T) gate fires per episode, ranked by score at the boundary",
    "action_chunk_H": 10,
    "handoff": "at the next chunk boundary only",
    "hold_chunks_min": 3,
    "de_escalation": "hysteresis: return to the weak policy only after the score stays below (tau - 0.15) for a full hold window"
  },
  "measured": {
    "duty_cycle_step_weighted": 0.38,
    "rtr_targeted": 0.101,
    "rtr_budget_matched_blind": 0.046,
    "rtr_random_trigger": 0.051,
    "rtr_always_strong_ceiling": 0.319,
    "early_window_auroc": 0.764,
    "auroc_ci95_cluster_bootstrap": [0.70, 0.84]
  }
}