import type { Api } from "../../../api.js";
/**
 * The earlier turns of a chat, rendered for a Claude Code session that has
 * never seen them.
 *
 * Local Ask starts a fresh harness session on every CLI run — the harness can
 * only resume Claude Code by rerunning it, and a rerun cancels whatever tool
 * approval is in flight, which Claude Code then records as the user refusing
 * the tool. Continuity therefore comes from the chat history the API already
 * has, replayed into the first prompt.
 *
 * Best effort: a chat whose history cannot be read is answered without it
 * rather than not at all.
 */
export declare function loadChatHistoryPreamble(input: {
    api: Api;
    chatUuid: string;
}): Promise<string | undefined>;
type HistoryMessage = {
    type: string;
    status?: string;
    parts: Array<{
        type: string;
    }>;
};
/**
 * Exported for tests. Takes the API's messages oldest-first and returns the
 * preamble, or `undefined` when there is nothing worth replaying.
 */
export declare function renderHistoryPreamble(messages: readonly HistoryMessage[]): string | undefined;
export {};
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