{
  "status": "passed",
  "checks_passed": 7,
  "checks": [
    "valid input exits 0",
    "baseline spend equals EUR 6000",
    "comparison revenue equals EUR 34880",
    "comparison conversions equal 436",
    "invalid input exits 2",
    "negative revenue rejected",
    "clicks exceeding impressions rejected"
  ],
  "valid_exit_code": 0,
  "invalid_exit_code": 2,
  "execution": "Actual offline Python execution; no model or platform calls"
}