/**
 * Terminal utilities for better rendering control
 * Implements DEC Mode 2026 (Synchronized Output) and other optimizations
 */
import { WriteStream } from 'tty';
/**
 * Check if terminal supports synchronized output (DEC 2026)
 * Modern terminals: Ghostty, iTerm2 3.5+, Kitty, WezTerm, VSCode 1.80+
 */
export declare function supportsSynchronizedOutput(): boolean;
/**
 * Wrap stdout.write to use synchronized output when available
 */
export declare function createSyncWriter(stdout: WriteStream | undefined): {
    startSync: () => void;
    endSync: () => void;
    write: (data: string) => void;
};
/**
 * Hide cursor during heavy rendering operations
 */
export declare function hideCursor(stdout: WriteStream | undefined): void;
/**
 * Show cursor after rendering
 */
export declare function showCursor(stdout: WriteStream | undefined): void;
/**
 * Clear N lines above cursor without scrolling
 * More targeted than full screen clear
 */
export declare function clearLinesAbove(stdout: WriteStream | undefined, lines: number): void;
/**
 * Move cursor to specific line (relative to current position)
 */
export declare function moveCursor(stdout: WriteStream | undefined, lines: number): void;
/**
 * Request terminal size (for responsive layouts)
 */
export declare function getTerminalSize(stdout: WriteStream | undefined): {
    columns: number;
    rows: number;
};