export declare const visualAuditTools: {
    visualBrowserAudit: import("ai").Tool<{
        url: string;
        viewport: "desktop" | "mobile" | "tablet";
        focus?: string | undefined;
    }, {
        url: string;
        viewport: "desktop" | "mobile" | "tablet";
        focus: string;
        screenshotPath: any;
        nextSteps: string[];
        visionHint: string;
        error?: never;
    } | {
        error: string;
        url?: never;
        viewport?: never;
        focus?: never;
        screenshotPath?: never;
        nextSteps?: never;
        visionHint?: never;
    }>;
};
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