import type { RouteContext } from '../router.js';
/** True for `/plan`, `/plan on|off`, `/plan-off`, `/planoff` (and on aliases). */
export declare function isPlanModeSlashCommand(text: string): boolean;
/**
 * Args to feed `handlePlanCommand`, or `null` when `text` is not a plan slash.
 * `/plan-off` / `/planoff` map to `off`; `/plan-on` / `/planon` map to `on`.
 */
export declare function parsePlanSlashArgs(text: string): string | null;
export declare function handlePlanCommand(args: string, ctx: RouteContext): Promise<string>;
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