import type { SlackThreadMessage } from "#public/channels/slack/api.js";
import type { SlackInboundContext } from "#public/channels/slack/inbound.js";
/** Renders the triggering inbound Slack message as one attributed block. */
export declare function formatSlackInboundMessage(context: SlackInboundContext, message: {
    readonly text: string;
    readonly ts: string;
}): string;
/**
 * Renders fetched Slack replies as explicitly attributed background context.
 * Returns `undefined` when there are no messages to add to the turn.
 */
export declare function formatSlackThreadContext(messages: readonly SlackThreadMessage[]): string | undefined;