{
  "type": "object",
  "properties": {
    "shots": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "shot_index": {
            "type": "integer"
          },
          "visible_entity_ids": {
            "type": "array",
            "items": {"type": "string"},
            "description": "This shot's physically visible entity short IDs"
          },
          "variant_resolved": {
            "type": ["object", "null"],
            "description": "base_short_id → actual visible form short_id (null when no variant resolution applies for this shot).",
            "additionalProperties": {"type": "string"}
          }
        },
        "required": ["shot_index", "visible_entity_ids", "variant_resolved"],
        "additionalProperties": false
      }
    }
  },
  "required": ["shots"],
  "additionalProperties": false
}