import { type SetupBlockedMode } from './setup-telemetry.js';
export type PreflightOutcome = 'ok' | 'blocked';
interface PreflightOptions {
    apiKey?: string;
    mcpUrl: string;
    retryCommand: string;
    mode: SetupBlockedMode;
    attemptId?: string;
}
/**
 * Checks the key every harness would install with, once, before anything is written.
 * A bad key otherwise fails all seven installs the slow way, and Hermes refuses outright.
 */
export declare function gateApiKey(options: PreflightOptions): Promise<PreflightOutcome>;
export {};