/**
 * Shared version utilities for AgentFactory CLI commands.
 *
 * Provides current version detection and npm update checking with
 * file-based caching to avoid excessive network requests.
 */
/**
 * Read the current package version from the CLI's package.json.
 */
export declare function getVersion(): string;
export interface UpdateCheckResult {
    currentVersion: string;
    latestVersion: string;
    updateAvailable: boolean;
}
/**
 * Check whether a newer version is available on npm.
 *
 * Uses a file-based cache (4-hour TTL) to avoid hitting the registry
 * on every CLI invocation. Returns null if the check is skipped or fails.
 *
 * Disabled when:
 *   - `AF_NO_UPDATE_CHECK=1` env var is set
 *   - `--no-update-check` was passed
 *   - Current version is 'unknown'
 */
export declare function checkForUpdate(opts?: {
    noUpdateCheck?: boolean;
}): Promise<UpdateCheckResult | null>;
/**
 * Print an update notification to stderr if a newer version is available.
 * Designed to be non-intrusive — just a single line after the startup banner.
 */
export declare function printUpdateNotification(result: UpdateCheckResult | null): void;
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