/**
 * Terminal prompts on `node:readline/promises` — the replacement for
 * `@inquirer/prompts` (06-ONESHOT.md §4). Streams are injectable so every
 * prompt is testable without a real TTY, and EOF resolves instead of hanging.
 */
export interface PromptStream extends NodeJS.ReadableStream {
    isTTY?: boolean | undefined;
    isRaw?: boolean | undefined;
    setRawMode?(mode: boolean): unknown;
}
export interface PromptIO {
    readonly input?: PromptStream | undefined;
    readonly output?: NodeJS.WritableStream | undefined;
}
/** Message used when a confirmation is impossible on a non-TTY stdin. */
export declare const CONFIRMATION_REQUIRED_MESSAGE = "confirmation required; re-run with -y or --permissions allow-all";
export declare function isInteractiveStdin(io?: PromptIO): boolean;
/**
 * Re-assert raw mode AND resume stdin after a readline prompt. readline pauses
 * stdin and switches it to cooked mode when it closes; leaving it paused means
 * no `keypress`/`data` events reach the REPL's ESC/Ctrl+C abort handler, so a
 * tool launched right after a confirmation could no longer be aborted.
 */
export declare function restoreInteractiveStdin(io?: PromptIO): void;
export declare function releaseInteractiveStdin(io?: PromptIO): void;
export declare function askLine(prompt: string, io?: PromptIO): Promise<string | undefined>;
/** Read a value without displaying it; echo is suppressed only on a TTY. */
export declare function askSecret(prompt: string, io?: PromptIO): Promise<string | undefined>;
export declare function parseYesNo(answer: string): boolean | undefined;
/**
 * y/n question. Empty input takes `defaultValue`; unparseable input re-asks.
 * EOF answers "no" rather than hanging.
 */
export declare function askYesNo(prompt: string, options?: PromptIO & {
    readonly defaultValue?: boolean;
}): Promise<boolean>;
export interface PromptChoice<T> {
    readonly name: string;
    readonly value: T;
}
/**
 * Numbered picker. Empty input takes the default choice; EOF or an invalid
 * selection after three tries resolves `undefined` so callers can cancel.
 */
export declare function askChoice<T>(prompt: string, choices: readonly PromptChoice<T>[], options?: PromptIO & {
    readonly defaultIndex?: number;
}): Promise<T | undefined>;