export interface RendexRestError {
    code: string;
    message: string;
    details?: unknown;
    /**
     * Present on plan-wall responses (the API's upgradeError() + the over-quota
     * 429). The actionable upgrade link — surfaced to the agent, never dropped.
     */
    upgrade_url?: string;
}
export declare function translateError(error: RendexRestError): string;
export declare function httpStatusToContext(status: number): string;
export declare function formatApiError(status: number, error: RendexRestError, retryAfter?: string | null): string;
export declare function nonJsonError(response: {
    status: number;
}): string;
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