/**
 * Error handling utilities for the MCP Finance server
 */
export declare class FinanceError extends Error {
    code: string;
    statusCode: number;
    details?: any | undefined;
    constructor(message: string, code: string, statusCode: number, details?: any | undefined);
}
export declare class ErrorHandler {
    /**
     * Handle and transform errors into FinanceError instances
     */
    static handle(error: unknown): FinanceError;
    /**
     * Handle Zod validation errors
     */
    private static handleZodError;
    /**
     * Handle Yahoo Finance API errors
     */
    private static handleYahooError;
    /**
     * Handle SEC EDGAR API errors
     */
    private static handleSECError;
    /**
     * Handle generic Error instances
     */
    private static handleGenericError;
    /**
     * Check if an error is from Yahoo Finance
     */
    private static isYahooFinanceError;
    /**
     * Check if an error is from SEC EDGAR
     */
    private static isSECError;
    /**
     * Format error for MCP response
     */
    static toMCPError(error: FinanceError): {
        error: string;
        code: string;
        details?: any;
    };
}
/**
 * Retry utility with exponential backoff
 */
export declare function withRetry<T>(fn: () => Promise<T>, options?: {
    maxRetries?: number;
    baseDelay?: number;
    maxDelay?: number;
    shouldRetry?: (error: any) => boolean;
}): Promise<T>;
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