[
  {
    "id": "eng-001",
    "level": "L1 Single-file",
    "task": "Fix an off-by-one error in a pagination helper.",
    "success": true,
    "firstPass": 1,
    "finalPass": 1,
    "regressionRate": 0,
    "humanInterventions": 0,
    "toolCalls": 12,
    "repairCount": 0,
    "failureRecoveryRate": 1
  },
  {
    "id": "eng-002",
    "level": "L3 Small feature",
    "task": "Add a user-facing refund endpoint with idempotency.",
    "success": true,
    "firstPass": 0,
    "finalPass": 1,
    "regressionRate": 0,
    "humanInterventions": 1,
    "toolCalls": 45,
    "repairCount": 1,
    "failureRecoveryRate": 0.8
  },
  {
    "id": "eng-003",
    "level": "L7 Migration",
    "task": "Migrate a payment table schema with rollback.",
    "success": false,
    "firstPass": 0,
    "finalPass": 0,
    "regressionRate": 0.2,
    "humanInterventions": 4,
    "toolCalls": 120,
    "repairCount": 3,
    "failureRecoveryRate": 0.5
  }
]