/** Negotiated by the stock ttyd launcher, never inferred from ordinary output.
 * The Bash Readline adapter emits this OSC only at its first input boundary.
 * It is metadata (ignored by older xterm clients), not a prompt string. */
export declare const TERMINAL_INPUT_READY_PREFERENCE = "opengeniInputReady";
export declare const TERMINAL_INPUT_READY_PROTOCOL = "bash-readline-v1";
/** One decoder per WebSocket/PTY generation. Retains at most a partial marker,
 * rather than buffering terminal output while the shell initializes. */
export declare function terminalInputReadyDecoder(): (data: string) => {
    output: string;
    ready: boolean;
};