/**
 * Parse a `<bundle>/<KEY>` reference (optionally `secret:<bundle>/<KEY>`) used by
 * `agents browser type --secret` to feed a credential from an `agents secrets`
 * bundle into a page WITHOUT the value ever crossing stdout or the transcript.
 * Returns null on a malformed ref.
 */
export declare function parseSecretRef(ref: string): {
    bundle: string;
    key: string;
} | null;
