Adult Age Check (18+, as of Today)

{
  "type": "object",
  "required": [
    "date_of_birth"
  ],
  "properties": {
    "minimum_age": {
      "enum": [
        18
      ],
      "type": "integer",
      "default": 18,
      "description": "The minimum age to check; only 18, the default, is offered."
    },
    "date_of_birth": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "The date of birth to check, in YYYY-MM-DD format."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "age_days": {
      "type": "number",
      "description": "Days past the last whole month after that birthday."
    },
    "age_years": {
      "type": "number",
      "description": "Age in whole years on the reference date."
    },
    "age_months": {
      "type": "number",
      "description": "Whole months past the last birthday."
    },
    "meets_minimum": {
      "type": "boolean",
      "description": "Whether the age is at least the minimum age checked."
    },
    "reference_date": {
      "type": "string",
      "description": "The date the age was computed against (the day of the call, YYYY-MM-DD)."
    },
    "minimum_age_checked": {
      "type": "number",
      "description": "The minimum age the check used (18)."
    }
  },
  "description": "The adult age check, as returned after shaping."
}