{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://example.org/schema/v1/declaration.schema.json",
  "title": "AI Usage Declaration",
  "type": "object",
  "additionalProperties": false,
  "required": ["@context", "@type", "schemaVersion", "language", "components", "assurance"],
  "properties": {
    "@context": {"type": "string"},
    "@type": {"const": "AIUsageDeclaration"},
    "schemaVersion": {"const": "1.1"},
    "subject": {"type": "string", "format": "uri"},
    "declaredAt": {"type": "string", "format": "date-time"},
    "language": {"enum": ["de", "en", "fr", "es", "it", "nl", "pt", "pl"]},
    "components": {"type": "object", "minProperties": 1, "additionalProperties": {"$ref": "#/$defs/component"}},
    "editorialResponsibility": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "name": {"type": "string"},
        "url": {"type": "string", "format": "uri"}
      }
    },
    "assurance": {"enum": ["selfDeclared", "technicallyRecorded", "signed", "verified"]},
    "presentation": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "title": {"type": "string", "maxLength": 120},
        "description": {"type": "string", "maxLength": 500},
        "badgeLabel": {"type": "string", "maxLength": 40},
        "badgeMessage": {"type": "string", "maxLength": 80},
        "leftColor": {"type": "string", "pattern": "^#[0-9A-Fa-f]{6}$"},
        "rightColor": {"type": "string", "pattern": "^#[0-9A-Fa-f]{6}$"}
      }
    }
  },
  "$defs": {
    "component": {
      "type": "object",
      "additionalProperties": false,
      "required": ["aiExtent", "humanReview"],
      "properties": {
        "aiExtent": {"enum": ["none", "assisted", "partial", "mostly", "full"]},
        "activities": {
          "type": "array",
          "uniqueItems": true,
          "items": {"enum": ["research", "summarisation", "drafting", "generation", "translation", "editing", "imageGeneration", "codeGeneration", "transcription", "classification"]}
        },
        "humanReview": {"enum": ["none", "basic", "editorial", "expert"]},
        "note": {"type": "string", "maxLength": 500}
      }
    }
  }
}