{
  "assessment_scope": "headless model, UI contract, and preview artifact",
  "conclusion": "Rayforge's existing workflow model and generated settings UI expose frequency and pulse width, preserve them in project-step serialization, and provide a preview operation stream without transport; packaged GTK interaction remains a manual evidence gap",
  "controller_backend_reachable": false,
  "preview": {
    "available": true,
    "distance_mm": 40.0,
    "machine_code": null,
    "operation_count": 9,
    "time_estimate_s": 0.053
  },
  "rayforge_commit": "c28918c87f8273dd1d244f5a057addc192807fa5",
  "remaining_manual_evidence": [
    "launch the packaged Windows application with the external addon",
    "confirm the Machine section is visible for a synthetic JCZ-capable head",
    "exercise open, edit, preview, save, reload, cancel, and recovery by user input"
  ],
  "round_trip_preserved": {
    "cut_speed": true,
    "frequency": true,
    "power": true,
    "pulse_width": true
  },
  "serialized_step": {
    "cut_speed": 750,
    "frequency": 40000,
    "power": 0.42,
    "pulse_width": 100,
    "type": "ContourStep"
  },
  "transport": null,
  "ui_contract": {
    "machine_section_is_capability_gated": true,
    "machine_section_keys": [
      "frequency",
      "pulse_width"
    ],
    "varset_generated_rows": true
  },
  "workflow_controls": {
    "cut_speed": {
      "label": "Cut Speed",
      "unit_contract": null
    },
    "frequency": {
      "label": "Frequency",
      "unit_contract": "Hz"
    },
    "power": {
      "label": "Power",
      "unit_contract": null
    },
    "pulse_width": {
      "label": "Pulse Width",
      "unit_contract": "ns"
    }
  }
}