{
  "schema": "sphere-art-agent-index/v1",
  "sphere": "sphere/v1",
  "axis": "art",
  "generated_at": "2026-09-12T16:24:31+09:00",
  "updated": "2026-09-12T16:26:09+09:00",
  "count": 0,
  "cards": [],
  "notes": [
    "v0 empty stack by design under Sphere constitution.",
    "Legacy atlas/pixel/procedural labs removed from registry; Zero Editor only studio.",
    "Labs integrated into Zero Editor; atlas/pixel/procedural removed from registry."
  ],
  "judge": {
    "rubric": "config/value-function.md",
    "required": [
      "world_fit",
      "concreteness"
    ],
    "auto_ingest": false
  },
  "sources_registry": "/sphere-art/data/sources/registry.json",
  "spine": "/data/sphere.json",
  "counts": null
}