import type { ChatsDeps } from "../types";
/**
 * Generates a concise LLM title for a conversation and, for authenticated
 * users who own the chat, persists it to the `chats.title` column. The
 * generated title is always returned so guest clients can store it locally.
 */
export declare function createChatTitleHandler(deps: ChatsDeps): {
    POST: (req: Request) => Promise<Response>;
};