{
  "algorithm": "deterministic bounded beam search with verifier feedback",
  "metrics": {
    "test": {
      "improved": 1,
      "improvement_rate": 1.0,
      "max_steps": 4,
      "mean_final_score": 4.0,
      "problems": 1
    },
    "train": {
      "improved": 4,
      "improvement_rate": 1.0,
      "max_steps": 4,
      "mean_final_score": 4.0,
      "problems": 4
    },
    "validation": {
      "improved": 1,
      "improvement_rate": 1.0,
      "max_steps": 4,
      "mean_final_score": 4.0,
      "problems": 1
    }
  },
  "model_type": "construction_mutator",
  "no_external_execution": true,
  "synthetic_only": true,
  "train_problem_ids": [
    "CYCLE-00",
    "CYCLE-01",
    "CYCLE-02",
    "CYCLE-03"
  ],
  "training_data": "douvras-evolution-lab-constructions train split only"
}