import { rename as fsRename } from 'node:fs/promises';
export type ProcessStatus = 'alive' | 'absent' | 'ambiguous';
export interface OperationLockOptions {
    readonly timeoutMs?: number;
    readonly retryDelayMs?: number;
    readonly processStatus?: (pid: number) => ProcessStatus;
    readonly rename?: typeof fsRename;
    readonly now?: () => string;
    /** Internal deterministic fault injection; never exposed by application composition. */
    readonly fault?: (phase: 'after-create' | 'after-write' | 'after-sync') => void;
}
export interface OperationLock {
    readonly path: string;
    readonly token: string;
    readonly rootIdentity: string;
    readonly forensicArtifacts: readonly string[];
    assertOwnership(): Promise<void>;
    release(): Promise<void>;
    abandonForTest(): Promise<void>;
}
export declare function verifyLockedRoot(stateRootValue: string, expectedIdentity: string): Promise<void>;
export declare function acquireOperationLock(stateRootValue: string, options?: OperationLockOptions): Promise<OperationLock>;