{
 "schemaVersion": 1,
 "decisionId": "activation-v2-delta-exp-override-20260824",
 "policyVersion": "activation_policy_v2",
 "previousDeltaExp": 0.02,
 "approvedDeltaExp": 0.03,
 "reason": "production completeness semantics exposed cal-0008 prefetch-to-emit violation at 0.02",
 "rollback": "0.02 historical only",
 "evidence": {
  "sampleId": "cal-0008",
  "action": "P",
  "denseTop": 0.654468,
  "margin": 0.029178
 },
 "runId": "label-review-cal20260824-1954",
 "goldDigest": "e74ccdcda998ae51596adf8119c818ac84fc52a4fa657fd687daeda7d14a072d",
 "approvedBy": [
  "user",
  "mainAgent"
 ]
}