import type { ErrorClass, ErrorContext } from './types';
export interface ConstructiveErrorArgs {
    code: string;
    message: string;
    errorClass: ErrorClass;
    http: number;
    context?: ErrorContext;
}
/**
 * The single canonical error class for Constructive. Carries the machine
 * `code`, its classification, an HTTP hint, and structured `context`.
 *
 * Replaces the previously separate `PgpmError`, `AuthError`, and `DataError`
 * shapes. GraphQL transports should serialize {@link toExtensions}.
 */
export declare class ConstructiveError extends Error {
    readonly code: string;
    readonly errorClass: ErrorClass;
    readonly http: number;
    readonly context?: ErrorContext;
    constructor(args: ConstructiveErrorArgs);
    /** Whether this error is safe to surface to end users. */
    get isPublic(): boolean;
    /** GraphQL `extensions` payload for this error. */
    toExtensions(): {
        code: string;
        class: ErrorClass;
        http: number;
        context?: ErrorContext;
    };
    toString(): string;
}