/**
 * QueryRewriterAgent - Rewrite and optimize queries
 */
export type RewriteStrategy = 'expand' | 'simplify' | 'decompose' | 'rephrase' | 'auto';
export interface RewriteResult {
    original: string;
    rewritten: string[];
    strategy: RewriteStrategy;
    confidence: number;
}
export interface QueryRewriterConfig {
    name?: string;
    llm?: string;
    defaultStrategy?: RewriteStrategy;
    verbose?: boolean;
}
/**
 * QueryRewriterAgent - Optimize and rewrite queries
 */
export declare class QueryRewriterAgent {
    readonly name: string;
    private provider;
    private providerPromise;
    private llmModel;
    private defaultStrategy;
    private verbose;
    constructor(config?: QueryRewriterConfig);
    private getProvider;
    /**
     * Rewrite a query
     */
    rewrite(query: string, strategy?: RewriteStrategy): Promise<RewriteResult>;
    private detectStrategy;
    private getSystemPrompt;
    private buildPrompt;
    private parseRewrittenQueries;
}
/**
 * Create a QueryRewriterAgent
 */
export declare function createQueryRewriterAgent(config?: QueryRewriterConfig): QueryRewriterAgent;