Debug-Retry-Thundering-Herd-V2

The model receives the prompt (and optional system message). The run uses scorer rubric_json_metrics with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Return JSON only with keys diagnosis, fix, tests. All retrying clients use the same fixed delay between attempts; when the server recovers after an outage, every client fires its next retry simultaneously, re-saturating the server and preventing stable recovery. Identify the thundering herd bug and fix it.

{
  "metrics": {
    "repro": {
      "checks": [
        {
          "contains": [
            "synchronized"
          ]
        },
        {
          "contains": [
            "simultaneous"
          ]
        },
        {
          "contains": [
            "retry"
          ]
        },
        {
          "contains": [
            "overload"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "jitter"
          ]
        },
        {
          "contains": [
            "exponential backoff"
          ]
        },
        {
          "contains": [
            "randomized delay"
          ]
        }
      ]
    },
    "diagnose": {
      "checks": [
        {
          "contains": [
            "thundering herd"
          ]
        },
        {
          "contains": [
            "fixed delay"
          ]
        },
        {
          "contains": [
            "retry storm"
          ]
        }
      ]
    }
  }
}