{
  "baseline": "old",
  "candidate": "proposal",
  "records": [
    {
      "procedure": "old",
      "task": "alpha",
      "run": "one",
      "success": true,
      "cost": 1
    },
    {
      "procedure": "proposal",
      "task": "beta",
      "run": "two",
      "success": false,
      "cost": 3
    }
  ],
  "task_weights": {
    "alpha": 0.5,
    "beta": 0.5
  }
}