import type { ReplyPayload } from "../auto-reply/types.js";
import type { AgentEvent, BridgeCallbacks } from "./types.js";
/** Options for the delivery adapter. */
export type DeliveryAdapterOptions = {
    /**
     * Maximum characters per message chunk.
     * Different channels have different limits:
     * - Discord: 2000 chars
     * - Telegram: 4096 chars
     * - Slack: ~40000 chars (block-based)
     * Default: 4000 (safe default for most channels)
     */
    chunkLimit?: number | undefined;
};
/**
 * Converts AgentEvent async iterable into channel-deliverable ReplyPayload chunks.
 *
 * Handles:
 * - Text accumulation and chunking at channel limits
 * - Progressive streaming via BridgeCallbacks
 * - Tool result formatting
 * - Error event formatting
 */
export declare class DeliveryAdapter {
    private readonly chunkLimit;
    constructor(options?: DeliveryAdapterOptions);
    /**
     * Process an event stream, invoking callbacks for real-time delivery
     * and returning final payloads for post-execution delivery.
     *
     * @param events - AgentEvent async iterable from runtime.execute()
     * @param callbacks - Optional streaming callbacks for real-time delivery
     * @returns Final ReplyPayload array for post-execution delivery
     */
    process(events: AsyncIterable<AgentEvent>, callbacks?: BridgeCallbacks): Promise<ReplyPayload[]>;
}