Debug-Hot-Reload-Module-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 module-level singleton (a connection pool) is not reset during hot reload; each reload adds a new pool instance without closing the old one, causing growing memory consumption, port exhaustion, and stale state observed by some request handlers. Identify the singleton leak and fix it.

{
  "metrics": {
    "repro": {
      "checks": [
        {
          "contains": [
            "hot reload"
          ]
        },
        {
          "contains": [
            "singleton"
          ]
        },
        {
          "contains": [
            "stale"
          ]
        },
        {
          "contains": [
            "accumulate"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "dispose"
          ]
        },
        {
          "contains": [
            "module.hot"
          ]
        },
        {
          "contains": [
            "cleanup"
          ]
        }
      ]
    },
    "diagnose": {
      "checks": [
        {
          "contains": [
            "module-level singleton"
          ]
        },
        {
          "contains": [
            "not reset on reload"
          ]
        },
        {
          "contains": [
            "hot module replacement"
          ]
        }
      ]
    }
  }
}