{
  "status": "block",
  "reference_window_id": "reference_2026_w23",
  "current_window_id": "current_2026_w24_bad",
  "policy_candidate_version": "policy_candidate_v4",
  "reward_card_version": "1.0.0",
  "diagnostics": {
    "slice_population_stability_index": 0.402894,
    "action_population_stability_index": 0.867753,
    "blocked_slices": 4,
    "blocked_rollout_stages": 3,
    "plan_status": "block"
  },
  "drift_failures": [
    "slice_population_stability_index",
    "action_population_stability_index"
  ],
  "plan_report": {
    "status": "block",
    "failures": [
      "missing_fallback_policy_version",
      "rollback_not_ready",
      "restore_too_slow",
      "rollback_conditions_too_weak",
      "missing_trace_field:action_probability",
      "missing_trace_field:fallback_policy_version"
    ],
    "missing_trace_fields": [
      "action_probability",
      "fallback_policy_version"
    ]
  },
  "slice_rows": [
    {
      "slice": "herramientas",
      "status": "block",
      "reason": "reward_delta;reward_mean;case_pass_rate;evidence_pass_rate;p95_latency_ms;tool_error_rate;fallback_rate",
      "requests": 260,
      "reward_mean": 0.55,
      "reward_delta": -0.11,
      "case_pass_rate": 0.82,
      "evidence_pass_rate": 0.84,
      "p95_latency_ms": 3300,
      "tool_error_rate": 0.09,
      "fallback_rate": 0.18
    },
    {
      "slice": "privacidad",
      "status": "block",
      "reason": "reward_delta;reward_mean;case_pass_rate;evidence_pass_rate;p95_latency_ms;fallback_rate",
      "requests": 20,
      "reward_mean": 0.61,
      "reward_delta": -0.13,
      "case_pass_rate": 0.88,
      "evidence_pass_rate": 0.89,
      "p95_latency_ms": 2600,
      "tool_error_rate": 0.03,
      "fallback_rate": 0.09
    },
    {
      "slice": "rag",
      "status": "block",
      "reason": "reward_delta;reward_mean;case_pass_rate;evidence_pass_rate;p95_latency_ms;tool_error_rate;fallback_rate",
      "requests": 250,
      "reward_mean": 0.59,
      "reward_delta": -0.13,
      "case_pass_rate": 0.84,
      "evidence_pass_rate": 0.82,
      "p95_latency_ms": 3100,
      "tool_error_rate": 0.06,
      "fallback_rate": 0.13
    },
    {
      "slice": "sql",
      "status": "block",
      "reason": "reward_delta;reward_mean;case_pass_rate;evidence_pass_rate;p95_latency_ms;tool_error_rate;fallback_rate",
      "requests": 260,
      "reward_mean": 0.58,
      "reward_delta": -0.11,
      "case_pass_rate": 0.86,
      "evidence_pass_rate": 0.87,
      "p95_latency_ms": 2850,
      "tool_error_rate": 0.055,
      "fallback_rate": 0.11
    }
  ],
  "rollout_rows": [
    {
      "stage": "pilot_25",
      "traffic_pct": 25,
      "min_duration_minutes": 60,
      "exit_criteria_count": 1,
      "status": "block",
      "reason": "duration_too_short;exit_criteria_too_weak"
    },
    {
      "stage": "pilot_5",
      "traffic_pct": "",
      "min_duration_minutes": "",
      "exit_criteria_count": 0,
      "status": "block",
      "reason": "missing_required_stage"
    },
    {
      "stage": "shadow",
      "traffic_pct": "",
      "min_duration_minutes": "",
      "exit_criteria_count": 0,
      "status": "block",
      "reason": "missing_required_stage"
    }
  ]
}