export interface FetchError extends Error {
    response?: {
        status: number;
        statusText: string;
        data: any;
        headers: Record<string, string>;
    } | undefined;
    config?: {
        url: string;
        method?: string;
    } | undefined;
}
export declare const isFetchError: (error: any) => error is FetchError;
export declare const isAuthFailureStatus: (status: number | undefined) => boolean;
/**
 * Guidance shown when a request fails with 401/403 and the CLI/client did not
 * attach an Authorization header. Environments may still inject auth into
 * outbound requests; this message covers both "token missing" and "injection
 * failed / invalid".
 */
export declare const MISSING_AUTH_GUIDANCE: string;
export declare const maybeEnrichFetchError: <T = unknown>(error: T) => T;
/**
 * When a request was made without an Authorization header and the server
 * responded 401/403, rewrite the error message with missing-auth guidance.
 * Returns the original error unchanged otherwise.
 */
export declare const maybeEnrichMissingAuthFetchError: <T = unknown>(error: T, hadAuthorizationHeader: boolean) => T;
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