{
  "schema":"hella.exp019.summary.v1",
  "policy_lock_commit":"7ce4794e8",
  "harness_preregister_commit":"81cbea2be",
  "trials":{"benign":32,"incident":30},
  "metrics":{
    "benign_hard_freeze_rate":0.125,
    "benign_pacing_rate":0.34375,
    "incident_premature_freeze_rate":0.066667,
    "incident_first_freeze_at_or_after_compromise_rate":0.933333,
    "detection_delay_median_nonpremature":0.0,
    "detection_delay_max_nonpremature":1,
    "clean_recovery_rate":1.0,
    "checkpoint0_rate":0.033333
  },
  "finding":"Adding a one-phase bounded grace state sharply reduced premature freezes compared with the prior intent-lease policy, while preserving clean recovery. The remaining benign hard freezes were entirely unscheduled cache-refresh trials.",
  "truth_boundary":"Prospective generated lab challenge on a real disposable iSCSI path. Provenance is lab metadata, not a production authorization system."
}