import type { Interface as ReadlineInterface } from "node:readline";
import { UsageError } from "./errors.js";
/**
 * Error thrown when attempting to prompt in a non-interactive context.
 * Extends UsageError because it's a usage issue (user needs --force in non-interactive mode).
 */
export declare class NonInteractiveError extends UsageError {
    constructor(message: string);
}
/**
 * Check if stdin is a TTY (interactive terminal).
 * Returns false when input is piped or redirected.
 */
export declare function isStdinTTY(): boolean;
/**
 * Options for confirmAction, primarily for testing.
 */
export interface ConfirmActionOptions {
    /** Custom readline interface (for testing) */
    rl?: ReadlineInterface;
    /** Skip TTY check (for testing) */
    skipTTYCheck?: boolean;
}
/**
 * Prompt the user for confirmation.
 * Returns true if the user enters 'y', 'yes', 'Y', or 'YES', false otherwise.
 * Returns false if the user sends EOF (Ctrl+D).
 *
 * @throws {NonInteractiveError} if stdin is not a TTY (non-interactive context)
 */
export declare function confirmAction(message: string, options?: ConfirmActionOptions): Promise<boolean>;
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