/**
 * Perplexity Search Tool
 *
 * Web search with real-time results powered by Perplexity.
 * Package: @perplexity-ai/ai-sdk
 */
import type { ToolMetadata, PraisonTool } from '../registry/types';
export declare const PERPLEXITY_METADATA: ToolMetadata;
export interface PerplexitySearchConfig {
    maxResults?: number;
    recencyFilter?: 'hour' | 'day' | 'week' | 'month' | 'year';
    domainFilter?: string[];
}
export interface PerplexitySearchInput {
    query: string;
}
export interface PerplexitySearchResult {
    results: Array<{
        title: string;
        url: string;
        snippet: string;
    }>;
    answer?: string;
}
/**
 * Create a Perplexity Search tool
 */
export declare function perplexitySearch(config?: PerplexitySearchConfig): PraisonTool<PerplexitySearchInput, PerplexitySearchResult>;
/**
 * Factory function for registry
 */
export declare function createPerplexitySearchTool(config?: PerplexitySearchConfig): PraisonTool<unknown, unknown>;