import { type ProductDeliveryEnvelope } from '@xopcai/gateway-contract';
import type { ClientHistoryMessage } from './client-history.js';
export declare function conciseProgress(text: string): string;
export declare function productDeliveries(result: unknown): ProductDeliveryEnvelope[];
/** Transport-only projection: stored transcripts and default clients remain unchanged. */
export declare function compactHistory(messages: ClientHistoryMessage[]): ClientHistoryMessage[];