/**
 * gog_auth_start tool - Start non-blocking Google OAuth flow
 *
 * Delegates URL building and scope resolution to GoogleAuthProvider.
 * Tool name kept as "gog_auth_start" for backward compatibility.
 */
import type { AnyAgentTool } from "../common.js";
export declare function createGogAuthStartTool(opts?: {
    agentId?: string;
    agentDir?: string;
    sessionKey?: string;
}): AnyAgentTool;
