import type { RequestHandler } from "express";
/**
 * `/_sb_ai_*` endpoints only exist on the split live-edit AI service. The
 * editor probes them first to detect split mode, so a single-process dev
 * server must answer 404 at once rather than hold the probe until Vite starts
 * (or fails): a held probe is retried as a 5xx for minutes and hides the
 * startup error the editor would otherwise show.
 */
export declare function isAiServicePath(url: string | undefined): boolean;
export declare const rejectAiServicePaths: RequestHandler;
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