Debug-Catch-Swallows-Error-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 try/catch block catches all errors and returns a hardcoded default value; genuine runtime exceptions that should propagate to the caller are silently swallowed, hiding bugs. Identify the error-swallowing pattern and fix it.

{
  "metrics": {
    "repro": {
      "checks": [
        {
          "contains": [
            "catch"
          ]
        },
        {
          "contains": [
            "swallowed"
          ]
        },
        {
          "contains": [
            "default value"
          ]
        },
        {
          "contains": [
            "exception"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "rethrow"
          ]
        },
        {
          "contains": [
            "throw err"
          ]
        },
        {
          "contains": [
            "propagate"
          ]
        }
      ]
    },
    "diagnose": {
      "checks": [
        {
          "contains": [
            "silent failure"
          ]
        },
        {
          "contains": [
            "error hidden"
          ]
        },
        {
          "contains": [
            "catch all"
          ]
        }
      ]
    }
  }
}