{
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    "step_written": true,
    "stl_written": true
  },
  "classification": "AUTONOMOUS_PRACTICE_PASS",
  "exercise_id": "gothic.quatrefoil-recess",
  "exercise_title": "Quatrefoil Recess",
  "generated_at": "2026-07-28T08:25:26.515310+00:00",
  "metrics": {
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      "y": 82.0,
      "z": 7.0
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    "production_release": false,
    "protected_academy_state_modified": false,
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  },
  "skills_practised": [
    "circle composition",
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    "boolean union"
  ],
  "variant": 2
}
