/**
 * Backend routing for CLI-side image hosting.
 *
 * `uploadImage()` (see `./generated-images.ts`) needs the backend base url
 * and the machine JWT. Those are exactly the credentials `agent-bridge.ts`
 * receives for text models, so anything in the CLI that wants to host an
 * image (generated images, tool screenshots, ...) resolves them the same way.
 *
 * Returns `null` when the CLI is not logged in / the JWT expired — callers
 * then keep the image local (inline base64 / file on disk) instead of
 * failing the turn.
 *
 * @module @spectral/backend/machine-routing
 */
export interface BackendRouting {
    backendUrl: string;
    machineJwt: string;
}
/**
 * Resolve `backendUrl` + `machineJwt`, mirroring how `agent-bridge.ts` obtains
 * them (`serve.ts` → `registration.record`). `SPECTRAL_BACKEND_URL` wins over
 * the configured api url so dev/staging overrides keep working.
 */
export declare function resolveBackendRouting(): Promise<BackendRouting | null>;
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