{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/AccessCheck",
  "title": "AccessCheck",
  "type": "object",
  "required": [
    "subject",
    "relation",
    "object"
  ],
  "properties": {
    "subject": {
      "type": "string",
      "description": "The actor (e.g., user@example.com)."
    },
    "relation": {
      "type": "string",
      "description": "The relation to check (e.g., viewer, editor, owner)."
    },
    "object": {
      "type": "string",
      "description": "The object identifier (e.g., file:abc123)."
    }
  }
}