{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "busindex.schema.json",
  "title": "Bus directory index (data/busindex.json)",
  "description": "Build-time school list for the Buses view (AM only). Per-route geometry is served separately from public/bus/<code>.geojson.",
  "type": "array",
  "items": {
    "type": "object",
    "required": ["code", "name", "type", "am"],
    "additionalProperties": false,
    "properties": {
      "code": { "type": "string", "description": "3-digit MCPS code" },
      "name": { "type": "string" },
      "type": { "type": "string" },
      "cluster": { "type": "string" },
      "lat": { "type": ["number", "null"] },
      "lon": { "type": ["number", "null"] },
      "am": { "type": "boolean" },
      "routes": { "type": "integer" }
    }
  }
}