export declare enum ErrorCode {
    VALIDATION_ERROR = "VALIDATION_ERROR",
    AUTH_ERROR = "AUTH_ERROR",
    NOT_FOUND = "NOT_FOUND",
    RATE_LIMITED = "RATE_LIMITED",
    API_ERROR = "API_ERROR",
    TIMEOUT = "TIMEOUT"
}
export declare class ToolError extends Error {
    readonly code: ErrorCode;
    readonly retryable: boolean;
    readonly details?: Record<string, unknown>;
    constructor(code: ErrorCode, message: string, retryable?: boolean, details?: Record<string, unknown>);
}
export declare function classifyHttpError(status: number, body: string): ToolError;
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