/**
 * Attach/read the classified `DeploymentFailure` on a terminal error WITHOUT
 * wrapping it in a new class — consumers branch on error identity
 * (`instanceof DriftRepairAvailableError` drives the CLI repair offer), so a
 * wrapper would silently break them. This is the Result-side twin of the
 * `onDeploymentFailure` callback.
 */
import { type DeploymentFailure } from "@fjall/util";
/**
 * Attach the record to the error, non-enumerably so serialisers and message
 * formatters do not double-ship it. Returns the same error instance.
 */
export declare function attachDeploymentFailure<E extends Error>(error: E, failure: DeploymentFailure): E;
/**
 * Read a previously attached record; undefined when absent or malformed
 * (validated via the schema, never cast).
 */
export declare function getDeploymentFailure(error: unknown): DeploymentFailure | undefined;