{
  "kind": "building",
  "id": "02-resource-collector",
  "role": "resource-collector",
  "name": "Harmonic Sieve",
  "function": "A resonance collector concentrates the plateau\u2019s harmonic field in crystal chambers and stores it as usable energy.",
  "shape_and_silhouette": "A tall triangular prism rises from a broad solid plinth, its front-to-back ridge repeated by two smaller nested triangular frames at the intake.",
  "visual_description": "White crystalline ribs carry perforated black ceramic slopes and a Sierpinski intake screen, with deep violet collector chambers, triangular bearing collars, and cyan light concentrated inside the nested apertures.",
  "production_notes": "A later working-district utility, freestanding on flat ground, uses replaceable screen cassettes and heavy vibration-absorbing foundations alongside loading courts.",
  "departure": "Its steep continuous prism and concentrated intake distinguish the collector from lighter market canopies and branching institutional towers.",
  "shared_traits": [
    "Three scales of triangular apertures",
    "Replaceable ceramic cassettes on white crystal structure",
    "Solid black service plinth",
    "Internal cyan energy light"
  ],
  "constraints": [
    "Ridge runs front to rear",
    "Keep triangular ribs continuous and foundation solid",
    "No chimneys, turbines or unrelated machinery",
    "Rear is a closed service elevation with smaller vents"
  ],
  "idle_animation": "A soft cyan pulse moves inward across the three intake frames once per long cycle without moving any structural component.",
  "day_night": "Day exposes the matte cassette surfaces and violet chambers; night makes the recessed intake and narrow base sockets brighter without washing out the triangular ribs.",
  "version": 1
}