export declare function stableStringify(value: unknown): string;
export declare function valueHash(value: unknown): string;
export declare function logicalRunId(runId: string, runEpoch: number | undefined): string;
export declare function idempotencyKey(runId: string, callsite: string, payload: unknown): string;
export declare function toolEffectKey(runId: string, callsite: string, name: string, args: unknown): string;
export declare function pauseEffectKey(runId: string, callsite: string, name: string): string;
export declare function approvalEffectKey(runId: string, effectKey: string, name: string, args: unknown): string;
export declare function clockEffectKey(runId: string, callsite: string, kind: 'now' | 'uuid'): string;