{
  "kind": "building",
  "id": "thunderbolt-foundry",
  "role": "thunderbolt-industry",
  "name": "Thunderbolt Foundry",
  "footprint": "3.25×2.5 tiles",
  "function": "A two-worker heavy workshop combines Static and prism glass into thunderbolts despite frequent blasts that make nearby households deeply unhappy.",
  "shape_and_silhouette": "A broad armored cloudstone drum is split by a tall central lightning fork and flanked by two stepped blast towers, giving the factory a massive tripartite silhouette with a low protected entrance.",
  "visual_description": "Sooted cloudstone panels wrap a reinforced pumice cage, the +Z doorway sits inside a deep ceramic-lined blast porch, blackened-copper straps radiate from the fork across every wall, side towers carry vent shutters and sacrificial prism-glass burst panels, and the rear opens to a heavy grafted quench platform with blue-ice troughs below.",
  "production_notes": "This is the newest and most feared industrial tradition, deliberately isolated on outer shelves and repaired after each accident with mismatched armor plates, bright staples, and replaceable glass panels.",
  "departure": "It exaggerates the Thunder Fork Joint into a fortress-like machine whose broad armored volumes and paired blast towers contrast with the Static Rake's exposed delicacy.",
  "shared_traits": [
    "Wind-rounded cloudstone masonry around a buoyant pumice frame.",
    "Copper fittings, vapour rope, and visible bands of repaired prism glass.",
    "Deep openings and a stable silhouette shaped for exposed cloud shelves."
  ],
  "constraints": [
    "The protected main entrance faces +Z between the blast towers.",
    "Resolve the rear quench deck, blue-ice troughs, roof vents, side burst panels, conductor straps, and all fork joints.",
    "Use faceted drums, stepped towers, rigid plates, rods, tubes, and ceramic beads rather than melted or twisting forms."
  ],
  "idle_animation": "The roof vents pulse open in sequence and the central fork gives a brief restrained recoil when a thunderbolt is completed.",
  "day_night": "By day soot and repair plates dominate, while at night the ceramic joints glow lightning-white and rare violet flashes illuminate the burst panels from within."
}