import type { KeyPlanData } from './key-rewriter.js';
export interface ImportState {
    lastProcessedAt?: number | string;
    source: string;
    sourceWorkspaceId?: string;
}
export declare class CrossSourceError extends Error {
    readonly requestedSource: string;
    readonly storedSource: string;
    constructor(storedSource: string, requestedSource: string);
}
export declare function writeImportState(outputDir: string, state: ImportState): void;
export declare function readImportState(outputDir: string): ImportState | null;
export declare function writeKeyPlan(outputDir: string, plan: KeyPlanData): void;
/** The persisted plan, or null when absent/unreadable (treat as first run). */
export declare function readKeyPlan(outputDir: string): KeyPlanData | null;
export declare function assertSourceMatches(outputDir: string, requestedSource: string): void;
export declare function removeQfFromGitignore(outputDir: string): void;