/**
 * Skyvern Vision Fallback
 *
 * Skyvern combines computer vision + LLM reasoning to navigate sites that
 * defeat DOM-based approaches: CAPTCHAs, legacy apps, visual-only login flows,
 * government portals. It's the "break glass" option when Stagehand fails.
 *
 * Production setup (Phase 4+):
 *   1. Self-host: https://github.com/Skyvern-AI/skyvern
 *   2. Or use cloud: https://app.skyvern.com
 *   3. Set SKYVERN_API_URL + SKYVERN_API_KEY in .env
 *
 * Pricing note: vision tasks cost more per step than DOM-based Stagehand.
 * Use only when the fast path fails.
 */
export interface SkyvernTask {
    taskDescription: string;
    url: string;
    credentials?: {
        username: string;
        password: string;
        oneTimeCode?: string;
    };
}
export interface SkyvernConfig {
    apiUrl: string;
    apiKey: string;
    llmKey?: string;
    llmApiKey?: string;
}
export interface SkyvernStep {
    order: number;
    action_type: string;
    element_description?: string;
    reasoning?: string;
    success: boolean;
    screenshot_url?: string;
    duration_ms?: number;
    error?: string;
}
export interface SkyvernNavigateResult {
    screenshotUrls: string[];
    visitedUrls: string[];
    status: 'success' | 'failed' | 'partial';
    steps?: SkyvernStep[];
    taskId?: string;
    durationMs?: number;
    triggerReason?: string;
}
/**
 * Gap 5: Post-login navigation via Skyvern vision for apps where DOM analysis
 * cannot discover screens (canvas, WebGL, legacy Flash-replacement stacks).
 * Skyvern drives the browser via screenshot + LLM, returning visited page list.
 */
export declare function skyvernNavigate(startUrl: string, navigationGoals: string[], tenantConfig?: SkyvernConfig, triggerReason?: string): Promise<SkyvernNavigateResult>;
export declare function skyvernFallback(task: SkyvernTask, tenantConfig?: SkyvernConfig): Promise<'success' | 'failed'>;