Live City Air Quality Ranking (Worst-to-Best AQI, Worldwide)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "data": {
      "type": "object",
      "properties": {
        "updatedAt": {
          "type": "string",
          "description": "ISO 8601 timestamp for the overall ranking snapshot."
        },
        "citiesData": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "aqi": {
                "type": "number",
                "description": "Current air quality index for this city."
              },
              "url": {
                "type": "string",
                "description": "Relative url path slug identifying this city on the vendor's site, e.g. '/malaysia/sarawak/kuching'. Its country/state/city segments are reusable as the country/state/city input slugs of a per-city air-quality lookup."
              },
              "city": {
                "type": "string",
                "description": "City display name, e.g. 'Kuching'."
              },
              "rank": {
                "type": "number",
                "description": "1-based position in this ranking; 1 is the worst AQI observed."
              },
              "state": {
                "type": "string",
                "description": "State/region display name."
              },
              "country": {
                "type": "string",
                "description": "Country display name."
              },
              "updatedAt": {
                "type": "string",
                "description": "ISO 8601 timestamp of this city's last reading update. Observed as a plain date-time string on every entry in the one real call -- not a phone number, despite an automated capture heuristic's pattern-match flag on this field (see this tool's verification.notes and the fixture's own notes)."
              },
              "followersCount": {
                "type": "number",
                "description": "Number of IQAir community followers for this city's page -- a platform popularity metric, not an air-quality measurement."
              }
            },
            "additionalProperties": true
          },
          "description": "125 cities on the one real call observed, ordered by `rank` ascending (rank 1 = worst current AQI in the ranking)."
        }
      },
      "additionalProperties": true
    },
    "status": {
      "type": "string",
      "description": "'success' on the one real call observed."
    }
  },
  "description": "The live ranking record, as returned at routing.responseResultPath ($.output). This endpoint takes no input, so every call returns the same kind of full, populated snapshot -- no empty/not-found case was observed or is expected.",
  "additionalProperties": true
}