{
  "schema": "PLN-028-LAB1_FIXTURES_v1",
  "cases": [
    {
      "case_id": "baseline",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_BOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "REP-482-v3",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "release-2026.09.14",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "missing_reproduction",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_BOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "release-2026.09.14",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "missing_rollback",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_BOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "REP-482-v3",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "",
      "rollback_feasibility": "UNKNOWN",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "abort_active",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_BOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "REP-482-v3",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "release-2026.09.14",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": true,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "unrelated_repairs",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_UNBOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "REP-482-v3",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "release-2026.09.14",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 0,
      "unrelated_repairs": true,
      "policy_blocked": false
    },
    {
      "case_id": "stale_evidence",
      "patch_id": "PATCH-482A",
      "incident_id": "INC-482",
      "patch_class": "COMPOSITE_BOUNDED",
      "change_set_hash": "sha256:chg-482a",
      "reproduction_ref": "REP-482-v3",
      "risk_surface": "dependency+routing",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "release-2026.09.14",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "5pct",
      "control_cohort": "stable95pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 10,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED",
      "provenance_ref": "EV-REL-482",
      "evidence_age_days": 90,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "short_delayed_window",
      "patch_id": "PATCH-CFG-90",
      "incident_id": "INC-491",
      "patch_class": "CONFIG",
      "change_set_hash": "sha256:cfg-90",
      "reproduction_ref": "REP-491-v2",
      "risk_surface": "cache-policy",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "config-r88",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "10pct-workers",
      "control_cohort": "stable90pct",
      "observation_window_minutes": 30,
      "minimum_failure_latency_minutes": 120,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "PENDING",
      "provenance_ref": "EV-REL-490",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    },
    {
      "case_id": "transfer_delayed_config",
      "patch_id": "PATCH-CFG-91",
      "incident_id": "INC-491",
      "patch_class": "CONFIG",
      "change_set_hash": "sha256:cfg-91",
      "reproduction_ref": "REP-491-v2",
      "risk_surface": "cache-policy",
      "affected_scope": "agent-orchestrator",
      "rollback_target": "config-r88",
      "rollback_feasibility": "VERIFIED",
      "canary_cohort": "10pct-workers",
      "control_cohort": "stable90pct",
      "observation_window_minutes": 180,
      "minimum_failure_latency_minutes": 120,
      "success_signals_clear": true,
      "abort_signal_active": false,
      "error_budget_guard_clear": true,
      "promotion_gate_defined": true,
      "rollback_trigger_defined": true,
      "post_change_verification": "VERIFIED_DELAYED_180M",
      "provenance_ref": "EV-REL-491",
      "evidence_age_days": 0,
      "unrelated_repairs": false,
      "policy_blocked": false
    }
  ]
}