{
  "case_id": "UPGRADE-06",
  "skill_id": "istio-upgrade-readiness",
  "prompt": "Is the upgrade fully isolated because we use a canary control-plane revision?",
  "execution_context": {
    "tier": "static-review",
    "live_adapter_authorized": false,
    "network_authorized": false,
    "environment_note": "Synthetic fixture; no real cluster, current release support or actual observations are asserted. Evaluate the stated distinction and preserve all missing context."
  },
  "supplied_evidence": {
    "strategy": "canary",
    "shared_CRDs": true,
    "extensions": "unreviewed",
    "rollback": "switch revision label"
  }
}