/**
 * core/router.ts — Message routing: message → backend dispatch.
 *
 * Routes incoming messages to the appropriate AI backend.
 * Default: SessionBackend (typeIntoSession via iTerm2).
 */
import type { Backend } from "../types/backend.js";
export declare class MessageRouter {
    private _defaultBackend;
    private readonly sessionBackends;
    get defaultBackend(): Backend | null;
    setDefaultBackend(backend: Backend): void;
    route(sessionId: string): Backend | null;
    setBackend(sessionId: string, backend: Backend): void;
    removeBackend(sessionId: string): void;
    listBackends(): Array<{
        sessionId: string;
        backend: string;
        type: string;
    }>;
}
/** Singleton router instance */
export declare const router: MessageRouter;
//# sourceMappingURL=router.d.ts.map