import { ToolResponse } from '../types/index.js';
export interface FilterStats {
    itemsFiltered: number;
    unauthorizedImos: string[];
    processingTimeMs: number;
}
/**
 * Main function to filter tool responses by company IMO authorization
 * @param response - Tool response to filter
 * @returns Filtered tool response
 */
export declare function filterResponseByCompanyImos(response: ToolResponse): Promise<ToolResponse>;
/**
 * Filter search results before artifact creation to prevent unauthorized data leakage
 * This is critical for tools like universal_voyage_search that create persistent snapshots
 * @param searchResults - Array of search result objects
 * @returns Object with filtered results and statistics
 */
export declare function filterSearchResultsByCompanyImo(searchResults: any[]): {
    filtered: any[];
    stats: FilterStats;
};
/**
 * Get filtering statistics for monitoring
 * @returns Object with current filtering configuration
 */
export declare function getFilteringStats(): {
    companyName: string;
    isFilteringEnabled: boolean;
    companyImoCount: number;
    isAdminCompany: boolean;
};