{
  "schema_version": 1,
  "sample_id": "aishell4_test_m_r003s01c01",
  "contamination_type": "external_cpu_test_suite_contention",
  "observed_at_approx": "2026-07-21T18:36:00+08:00/2026-07-21T18:37:00+08:00",
  "duration_seconds_approx": 20,
  "workload": "project-wide ruff and pytest invoked outside the inference orchestrator",
  "impact": {
    "accuracy_artifacts_valid": true,
    "runtime_metrics_valid": false,
    "runtime_comparability_valid": false,
    "rerun_for_speed_authorized": false
  },
  "handling": "Keep the original inference for accuracy; exclude M timing and RTF from runtime rankings."
}