/**
 * Pure routing decision used by every routed adapter. Adapters do their own
 * path normalization (Netlify strips `/.netlify/functions/<name>`, Vercel +
 * Azure use `/api/...`, AWS uses raw `/...`) and then ask `classifyRoute` to
 * decide what to do.
 *
 * Centralising the decision tree means a new endpoint (say `/cache/clear`)
 * lands in one place instead of six.
 */
export type Route = {
    kind: 'preflight';
} | {
    kind: 'health';
} | {
    kind: 'validate-single';
} | {
    kind: 'validate-batch';
} | {
    kind: 'method-not-allowed';
} | {
    kind: 'not-found';
};
export declare function classifyRoute(path: string, method: string): Route;
/** Standard healthy-status payload used by every adapter. */
export declare function healthPayload(platform: string): {
    status: 'healthy';
    platform: string;
    timestamp: string;
};