import type { PromptDefinition } from '../types/prompts.js';
/**
 * JSON with object keys sorted, so the same content always encodes the same way. `undefined` fields
 * are dropped, as `JSON.stringify` drops them.
 */
export declare function canonicalJson(value: unknown): string;
/**
 * The content version of a definition: `p` and the first 12 hex digits of a SHA-256 over its name,
 * messages, partials, configuration, and defaults.
 *
 * Metadata is left out, so describing a prompt differently does not make it a new version. Hashing
 * uses Web Crypto, which Node, browsers, and edge runtimes all provide, so a version computed in one
 * matches the version computed in another.
 */
export declare function promptVersion(definition: PromptDefinition): Promise<string>;