import type { DescriptionResult, RuleInput } from '../types.js';
export type DescriptionLengthRuleOptions = {
    min?: number;
    max?: number;
};
/**
 * Validates the <meta name="description"> existence and character length.
 *
 * Pass: description exists and length is within [min, max]
 * Fail: description missing/empty, or length out of range
 *
 * Length is measured in Unicode code points (not bytes),
 * so multibyte characters (CJK, emoji) each count as 1.
 */
export declare function checkDescriptionLength(input: RuleInput, options?: DescriptionLengthRuleOptions): DescriptionResult;
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