/**
 * Native OS Dialog Fallback
 *
 * Provides native OS dialog boxes for when MCP elicitation is not supported.
 * Works independently of the MCP stdio protocol.
 *
 * Timeout Strategy:
 * - Short timeout (45s) for AI responsiveness
 * - Cached responses for retry support
 * - Clear user feedback on timeout
 */
export interface DialogOptions {
    title: string;
    message: string;
    buttons?: string[];
    defaultButton?: number;
    icon?: 'warning' | 'info' | 'error' | 'question';
    timeoutSeconds?: number;
}
export interface DialogResult {
    button: string;
    cancelled: boolean;
    timedOut?: boolean;
    stillPending?: boolean;
}
/**
 * Show a native OS dialog box with retry support
 *
 * Falls back through different methods based on OS:
 * - macOS: AppleScript display dialog
 * - Windows: PowerShell dialogs
 * - Linux: zenity or kdialog
 *
 * Retry Mechanism:
 * 1. First call: Shows dialog with short timeout (45s), caches promise
 * 2. If timeout before user responds: Returns timedOut=true, stillPending=true
 * 3. Retry call: Checks cache, returns result if user already responded
 *
 * @param options Dialog configuration
 * @returns Which button was clicked and whether user cancelled/timed out
 */
export declare function showNativeDialog(options: DialogOptions): Promise<DialogResult>;
/**
 * Show a confirmation dialog with Approve/Cancel buttons
 *
 * Convenience wrapper around showNativeDialog with retry support
 *
 * @returns Object with approved flag and retry information
 */
export declare function showConfirmDialog(title: string, message: string, approveText?: string, cancelText?: string): Promise<{
    approved: boolean;
    timedOut?: boolean;
    stillPending?: boolean;
}>;
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