import type { Session } from '../types.js';
export interface SessionMessagePreview {
    previewUserText?: string | null;
    previewBotText?: string | null;
    previewUserFullText?: string | null;
    previewBotFullText?: string | null;
    previewUserAt?: number | null;
    previewBotAt?: number | null;
    previewBotState?: 'replied' | 'waiting' | null;
}
/**
 * Build the latest user/bot exchange shown on dashboard session cards.
 *
 * User text comes from the local inbound queue (with persisted lastUserPrompt
 * as a fallback). Bot text comes from the append-only turn-sends marker written
 * by `botmux send`. Both reads are bounded and best-effort so a corrupt marker
 * cannot break `/api/sessions`.
 */
export declare function buildSessionMessagePreview(session: Session): SessionMessagePreview;
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