/**
 * MCP progress notification helper.
 * Dual-output: sends MCP notifications (resets client timeout) + writes stderr.
 * If client didn't request progress (no progressToken), only writes stderr.
 */
import type { RequestHandlerExtra } from '@modelcontextprotocol/sdk/shared/protocol.js';
import type { ServerRequest, ServerNotification } from '@modelcontextprotocol/sdk/types.js';
type Extra = RequestHandlerExtra<ServerRequest, ServerNotification>;
export declare function createProgressReporter(extra: Extra): {
    onProgress: (message: string) => void;
    step: (progress: number, total?: number, message?: string) => void;
};
export {};
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