/**
 * Ephemeral UI notifications via the toast stack.
 *
 * session.notice also routes here (via composition-root) and no longer
 * appends INFO/WARN rows into the transcript. Prefer `notify` / session.notice
 * for chrome only — never for durable conversation content.
 */
import type { ToastController, ToastLevel } from "./controllers/toast-controller.js";
export interface NotifyTarget {
    readonly toast: ToastController;
}
export interface NotifyOptions {
    readonly level?: ToastLevel | undefined;
    readonly durationMs?: number | undefined;
    readonly key?: string | undefined;
}
/** Show a short toast. Empty messages are no-ops. */
export declare function notify(services: NotifyTarget, message: string, options?: NotifyOptions): void;
export declare function notifySuccess(services: NotifyTarget, message: string, options?: Omit<NotifyOptions, "level">): void;
export declare function notifyWarn(services: NotifyTarget, message: string, options?: Omit<NotifyOptions, "level">): void;
export declare function notifyError(services: NotifyTarget, message: string, options?: Omit<NotifyOptions, "level">): void;