import { type RetrofitInitPlan } from './cli-init-types.js';
/**
 * Apply the previewed retrofit init plan to disk.
 *
 * The command snapshots package.json and generated helper targets before
 * writing, then rolls those files back automatically if any write fails.
 *
 * @param projectDir Project root that should receive the retrofit surface.
 * @param options Optional package-manager override used for emitted scripts and
 * follow-up guidance.
 * @returns The applied retrofit init plan describing the persisted changes.
 */
export declare function applyInitPlan(projectDir: string, options?: {
    packageManager?: string;
}): Promise<RetrofitInitPlan>;