{
  "kind": "building",
  "id": "seven-weather-crown",
  "role": "weather-monument",
  "name": "Crown of Seven Weathers",
  "footprint": "4.5×4 tiles",
  "function": "The city's great civic instrument combines sunshine, rainwater, prism glass, and thunderbolts to stabilise a complete weather cycle for the world below.",
  "shape_and_silhouette": "Seven unequal instrument towers stand on a broad ring-shaped cloudstone dais around an open sky well, their rigid inward-leaning tips forming a crown visible across the archipelago.",
  "visual_description": "A ceremonial +Z stair passes through a deep oval gate into the central well, heavy cloudstone ring segments alternate with open prism-screen loggias, copper ribs and pumice buttresses support seven distinct towers capped respectively by a sun petal, rain basin, rainbow fin, lightning fork, vapour vane, blue-ice lens, and calm-air bell, while the rear exposes a stepped service arcade and every side carries deliberate glass-stitched scars from the city's contributing wards.",
  "production_notes": "This is a singular civic commission assembled from all four traditions, with the finest workmanship on the public ring and visibly grafted older weather instruments preserved within the rear service structure.",
  "departure": "Rather than scaling up one workshop, the Crown composes seven legible machines around a void so its monumental identity comes from rhythm, openness, and a complete circular silhouette.",
  "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 main ceremonial entrance faces +Z through the oval gate and stair.",
    "Resolve the inner sky well, outer ring, rear service arcade, tower backs, open loggia depths, and full underside of projecting platforms.",
    "Build the seven towers from distinct combinations of simple rings, tapered prisms, panels, tubes, basins, and rigid frames with no freeform sculpted crown."
  ],
  "idle_animation": "The seven tower instruments move in a slow staggered cycle—petal tilt, cup tip, fin turn, fork pulse, vane yaw, lens rise, and bell nod—while the ring and overall crown silhouette remain fixed.",
  "day_night": "In daylight the prism loggias cast a rotating spectrum into the sky well, while at night a lightning-white current passes tower to tower and ends in a soft full-circle rainbow glow."
}