{
  "id": "procedural_tier4",
  "kind": "procedural",
  "tier": 4,
  "category_weights": {
    "inn": 0.15,
    "shop": 0.20,
    "house": 0.55,
    "infrastructure": 0.10
  },
  "target_building_count": 5,
  "plaza_radius_tiles": 12
}