{
  "schema_version": "1.0",
  "request": "生成一个28齿、厚度4毫米的齿轮",
  "route": {
    "selected_backend": "simplecadapi",
    "runner_skill": "simplecadapi",
    "project": "SimpleCADAPI",
    "fallback_order": [
      "build123d",
      "cadam"
    ],
    "workflow_profiles": [
      "caddesigner_ecip"
    ],
    "downstream_skills": [
      "cad-viewer"
    ]
  },
  "source": {
    "path": "gear_28t_4mm.py",
    "format": "python",
    "backend": "simplecadapi"
  },
  "artifacts": [
    {
      "path": "gear_28t_4mm.model.json",
      "role": "replayable_model"
    },
    {
      "path": "gear_28t_4mm.step",
      "role": "primary"
    },
    {
      "path": "gear_28t_4mm.stl",
      "role": "secondary"
    }
  ],
  "parameters": {
    "n_teeth": 28,
    "module_mm": 1.0,
    "pressure_angle_deg": 20.0,
    "thickness_mm": 4.0,
    "bore_diameter_mm": 5.0,
    "addendum_factor": 1.0,
    "clearance_factor": 0.25,
    "backlash_mm": 0.0
  },
  "assumptions": [
    "未指定模数，V1采用1.0毫米。",
    "未指定压力角，采用标准20度。",
    "未指定中心孔，采用5.0毫米通孔。",
    "未指定齿轮类型，采用直齿渐开线外齿轮。"
  ],
  "validation": [
    {
      "path": "validation.json",
      "status": "passed",
      "checks": {
        "step_valid": true,
        "solid_count": 1,
        "bounds_mm": [
          30.0,
          30.0,
          4.0
        ],
        "pitch_diameter_mm": 28.0,
        "outside_diameter_mm": 30.0,
        "visual_review": "passed_iso_top_front"
      }
    }
  ],
  "viewer_links": [
    "http://127.0.0.1:4178/?dir=%2FUsers%2Fjerry%2Flinkhand%2FCadSet%2Ftext-to-cad%2Fmodels%2Fcad-router-v1%2Fgear_28t_4mm&file=gear_28t_4mm.step"
  ]
}