Debug-Promise-Chain-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. A batch promise chain resolves before async writes finish because callbacks are not returned from map/then. Diagnose and fix the async timing bug.

{
  "metrics": {
    "repro": {
      "checks": [
        {
          "contains": [
            "resolves early"
          ]
        },
        {
          "contains": [
            "async writes"
          ]
        },
        {
          "contains": [
            "Promise.all"
          ]
        },
        {
          "contains": [
            "not returned"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "await"
          ]
        },
        {
          "contains": [
            "return promise"
          ]
        },
        {
          "contains": [
            "map"
          ]
        }
      ]
    },
    "diagnose": {
      "checks": [
        {
          "contains": [
            "promise chain"
          ]
        },
        {
          "contains": [
            "timing"
          ]
        },
        {
          "contains": [
            "then"
          ]
        }
      ]
    }
  }
}