/**
 * Reader for the error bodies a Personal Server (or the gateway) answers
 * with. Protocol errors use `{ error: { code, errorCode, message, details? } }`;
 * contract-level rejections use `{ error: "CODE", message }`; the gateway
 * uses `{ success: false, error: "<message>", code: "CODE" }` with lineage
 * detail fields (`unknown`, `scope`, `sourceScope`) at the top level; older
 * clients saw `{ code, message }`. All four are accepted.
 *
 * @internal
 */
export interface PersonalServerErrorBody {
    errorCode: string | null;
    message: string | null;
    details?: Record<string, unknown>;
}
export declare function isRecord(value: unknown): value is Record<string, unknown>;
/** Read a non-2xx response body; never throws. */
export declare function readPersonalServerErrorBody(response: Response): Promise<PersonalServerErrorBody>;