{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.textgears.com/schema/grammar-request",
  "title": "Grammar Check Request",
  "description": "Request body for TextGears grammar and spelling check endpoints",
  "type": "object",
  "required": ["text"],
  "properties": {
    "text": {
      "type": "string",
      "description": "UTF-8 encoded text to analyze",
      "minLength": 1
    },
    "language": {
      "type": "string",
      "description": "Language code in BCP 47 format",
      "default": "en-US",
      "enum": [
        "en-US", "en-GB", "en-ZA", "en-AU", "en-NZ",
        "fr-FR",
        "de-DE", "de-AT", "de-CH",
        "pt-PT", "pt-BR",
        "it-IT",
        "ar-AR",
        "ru-RU",
        "es-ES",
        "ja-JP",
        "zh-CN",
        "el-GR"
      ]
    },
    "key": {
      "type": "string",
      "description": "API authentication key"
    },
    "ai": {
      "type": "boolean",
      "description": "Enable AI-enhanced analysis",
      "default": false
    },
    "whitelist": {
      "type": "array",
      "description": "Words or phrases to exclude from error detection",
      "items": {
        "type": "string"
      }
    },
    "dictionary_id": {
      "type": "string",
      "description": "Custom dictionary identifier"
    },
    "rules": {
      "type": "array",
      "description": "Specific grammar rules to apply or exclude",
      "items": {
        "type": "string"
      }
    }
  },
  "additionalProperties": false
}