{
  "_build": {
    "authority_effect": "NONE_DRAFT_ONLY",
    "automatic_retry_used": false,
    "brain_mode": "blender_deep",
    "brain_model": "shire-blender-deep:qwen3-8b",
    "build_id": "20260718-152714",
    "elapsed_seconds": 180.89,
    "route_reason": "locked Blender task: modelling_plan",
    "spec_source": "shire-blender-deep",
    "validation_error": null
  },
  "asymmetry": 0.08,
  "eye_socket_scale": 1.1,
  "fang_length_mm": 20,
  "horn_length_mm": 105,
  "horn_spread_mm": 195,
  "jaw_width_scale": 1.1,
  "project_id": "BMP-0001",
  "schema": "shire.blender.sculpt_spec.v1",
  "skull_depth_mm": 110,
  "skull_height_mm": 160,
  "skull_width_mm": 120,
  "style_notes": [
    "Emphasize jagged, angular edges to convey brutality and gothic horror.",
    "Incorporate deep, chiseled grooves and cracks to simulate ancient demonic decay.",
    "Add asymmetrical features to enhance the demonic and chaotic aesthetic."
  ],
  "surface_damage": 0.7,
  "title": "Spawn of Hell Demon Skull"
}