/**
 * MCP Server Error Types and Utilities
 */
export declare enum ErrorCode {
    AUTH_REQUIRED = "AUTH_REQUIRED",
    AUTH_FAILED = "AUTH_FAILED",
    NOT_FOUND = "NOT_FOUND",
    PERMISSION_DENIED = "PERMISSION_DENIED",
    VALIDATION_ERROR = "VALIDATION_ERROR",
    API_ERROR = "API_ERROR",
    NETWORK_ERROR = "NETWORK_ERROR",
    NOT_IMPLEMENTED = "NOT_IMPLEMENTED",
    INTERNAL_ERROR = "INTERNAL_ERROR"
}
interface MCPErrorDetails {
    vikunjaError?: unknown;
    statusCode?: number;
    endpoint?: string;
}
export declare class MCPError extends Error {
    code: ErrorCode;
    details?: MCPErrorDetails;
    constructor(code: ErrorCode, message: string, details?: MCPErrorDetails);
    toJSON(): {
        error: {
            code: string;
            message: string;
            details?: unknown;
        };
    };
}
export interface MCPResponse<T = unknown> {
    success: boolean;
    data?: T;
    error?: {
        code: string;
        message: string;
        details?: unknown;
    };
}
export {};
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