export declare function assertKernelId(value: unknown, label: string): string;
export declare function newOperationId(prefix: string, ...parts: readonly string[]): string;
export declare function contentDigest(value: unknown): string;
export declare function contentHash(value: unknown): {
    algorithm: "sha256";
    hex: string;
};
export declare function sha256Hex(text: string): string;
export declare function repositoryPathHash(workspaceRoot: string): string;
/** Deterministic JSON for digests; sorts object keys recursively. */
export declare function stableStringify(value: unknown): string;