export interface VersionDriftResult {
    drift: boolean;
    message?: string;
}
export declare function checkVersionDrift(spawnedVersion: string, diskVersion: string): VersionDriftResult;
export declare const MAX_DRIFT_DEFERRALS = 12;
export type VersionDriftAction = 'none' | 'exit' | 'defer' | 'force-exit';
export interface VersionDriftDecisionInput {
    drift: VersionDriftResult;
    busyCount: number;
    deferrals: number;
    maxDeferrals?: number;
}
export interface VersionDriftDecision {
    action: VersionDriftAction;
    deferrals: number;
    message?: string;
}
export declare function decideVersionDriftAction(input: VersionDriftDecisionInput): VersionDriftDecision;