import type { HistoryMessage } from './tui-backend.js';
import { ChatLog } from './components/chat-log.js';
export declare function historyMessageKey(message: HistoryMessage, index: number): string;
export declare function historyKeysHaveAppendOnlyPrefix(previousKeys: readonly string[], nextKeys: readonly string[]): boolean;
/** Replay persisted transcript into the scroll log (synthetic run ids per assistant row). */
export declare function appendHistoryToChatLog(chatLog: ChatLog, messages: HistoryMessage[], toolsExpanded: boolean, showThinking?: boolean, opts?: {
    startIndex?: number;
}): void;