Reason-State-Session-Expiry

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 answer, evidence, constraints. A session starts 10:00, expires after 45 minutes idle, refreshes on activity. Activity at 10:20 and 10:50. Is it valid at 11:30?

{
  "metrics": {
    "accuracy": {
      "checks": [
        {
          "contains": [
            "valid"
          ]
        },
        {
          "contains": [
            "11:35"
          ]
        },
        {
          "contains": [
            "10:50"
          ]
        }
      ]
    },
    "evidence": {
      "checks": [
        {
          "contains": [
            "45 minutes"
          ]
        },
        {
          "contains": [
            "refreshes"
          ]
        },
        {
          "contains": [
            "activity"
          ]
        }
      ]
    },
    "constraint": {
      "checks": [
        {
          "contains": [
            "stateful"
          ]
        },
        {
          "contains": [
            "expiry"
          ]
        },
        {
          "contains": [
            "idle"
          ]
        }
      ]
    }
  }
}