{
  "engagement_id": "WH-ENG-20260821-TENANT-E2",
  "status": "cancelled",
  "cancelled_at": "2026-08-21T22:18:03Z",
  "cancellation_reason": "Session cutoff: E2 attacker-model applicability and target-owner acknowledgement remained unresolved. Zero target requests were sent.",
  "authorization_id": "operator-session-2026-08-21-e2-approval",
  "authorizer": "repository operator and infrastructure owner",
  "approved_at": "2026-08-21T21:56:00Z",
  "expires_at": "2026-08-21T22:35:00Z",
  "target": "http://tenant-engine.tenant-engine.svc.cluster.local:8090",
  "target_owner": "tenant-engine / infrastructure operator",
  "target_owner_acknowledged_at": null,
  "target_owner_acknowledgement_status": "not obtained before cancellation; E2 attacker-model applicability remains unresolved",
  "environment": "production",
  "production_approval": "Explicit user approval of engagements/2026-08-21-e2-proposals.md in the coordinating session",
  "namespace": "tenant-engine",
  "source": "dedicated pod user-engine/whitehat-e2-tenant, labelled and attributed with this engagement id",
  "control_plane_scope": [
    "GET apps/v1 deployment tenant-engine/tenant-engine for target revision only",
    "GET v1 service tenant-engine/tenant-engine for target identity only",
    "CREATE/GET/DELETE v1 pod user-engine/whitehat-e2-tenant only",
    "GET pod log user-engine/whitehat-e2-tenant only"
  ],
  "routes": [
    "GET /health",
    "POST /tenants",
    "GET /tenants/{tenant_id}",
    "GET /tenants/{tenant_id}/roles",
    "GET /tenants/{tenant_id}/roles/live",
    "GET /tenants/{tenant_id}/guardrails",
    "POST /tenants/{tenant_id}/roles/grant",
    "POST /tenants/{tenant_id}/roles/revoke",
    "POST /tenants/{tenant_id}/plan",
    "PATCH /tenants/{tenant_id}",
    "POST /tenants/{tenant_id}/retire",
    "POST /tenants/{tenant_id}/reactivate",
    "POST /tenants/{tenant_id}/grouping",
    "PUT /tenants/{tenant_id}/guardrails/{limit_key}",
    "DELETE /tenants/{tenant_id}/guardrails/{limit_key}"
  ],
  "fixture_ids": [
    "whitehat-e2-a-20260821", "tenant:trial:whitehat-e2-a-20260821",
    "whitehat-e2-b-20260821", "tenant:trial:whitehat-e2-b-20260821",
    "whitehat-e2-absent-20260821"
  ],
  "credential_lane": "projected Kubernetes service identity from the existing user-engine ingress class; no credential value retained",
  "credential_role": "ordinary user-engine caller with target-owner-confirmed flex-auth policy",
  "credential_max_ttl_seconds": 900,
  "techniques": ["e2-differential"],
  "prohibited_techniques": [
    "discovery", "direct-database-access", "saturation", "large-payload",
    "real-data-collection", "adjacent-service-follow-up",
    "any control-plane operation outside control_plane_scope"
  ],
  "rate_limit_per_minute": 10,
  "max_concurrency": 1,
  "maximum_requests": 60,
  "window_start": "2026-08-21T22:20:00Z",
  "window_end": "2026-08-21T22:35:00Z",
  "operator_contact": "repository operator in coordinating session",
  "abort_contact": "repository operator in coordinating session",
  "abort_thresholds": {
    "p95_latency_ms": 500,
    "probe_attributable_5xx": 1,
    "unexpected_or_non_fixture_data": 1,
    "missing_attribution": 1
  },
  "posture_claim": "implemented E2; currently evidenced E1",
  "attacker_model": "E2-authenticated-tenant-a",
  "finding_destination": "risk-nexus"
}