{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://hushspec.org/schemas/hushspec-engine-profile-experimental.v1.schema.json",
  "title": "Experimental external engine profile 0.1.0",
  "type": "object",
  "additionalProperties": false,
  "required": ["protocol", "implementation", "executable", "args", "error_codes"],
  "properties": {
    "protocol": {"const": "0.1.0"},
    "implementation": {
      "type": "object", "additionalProperties": false,
      "required": ["name", "version", "language"],
      "properties": {
        "name": {"type": "string", "minLength": 1, "maxLength": 256},
        "version": {"type": "string", "minLength": 1, "maxLength": 256},
        "language": {"type": "string", "minLength": 1, "maxLength": 256}
      }
    },
    "executable": {"$ref": "#/$defs/file"},
    "args": {"type": "array", "maxItems": 32, "items": {"type": "string", "maxLength": 4096}},
    "error_codes": {"enum": ["registry", "none"]},
    "materials": {"type": "array", "maxItems": 16, "items": {"$ref": "#/$defs/file"}}
  },
  "$defs": {
    "file": {
      "type": "object", "additionalProperties": false, "required": ["path", "sha256"],
      "properties": {
        "path": {"type": "string", "minLength": 1, "maxLength": 4096},
        "sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"}
      }
    }
  }
}