import type { Message } from "../types/index.js";
import { ChatCompletionMessageParam } from "openai/resources.js";
/**
 * Options for converting messages to API format.
 */
export interface ConvertMessagesOptions {
    /** When false, images are stripped and replaced with text placeholders. */
    supportsVision?: boolean;
}
/**
 * Convert message format to API call format, stopping when a compacted message is encountered.
 * Messages with no meaningful content or tool calls are filtered out.
 * @param messages Message list
 * @param options Optional conversion options (e.g. supportsVision)
 * @returns Converted API message format list
 */
export declare function convertMessagesForAPI(messages: Message[], options?: ConvertMessagesOptions): ChatCompletionMessageParam[];