export interface ClassifiedError {
    category: "rate_limit" | "context_window" | "auth" | "timeout" | "model_not_found" | "provider_unavailable" | "parse_error" | "unknown";
    title: string;
    description: string;
    hint: string;
    retryable: boolean;
    retryAfterMs?: number;
}
export declare function classifyError(err: unknown, provider?: string): ClassifiedError;