import type { TocEntry } from '../types.js';
/**
 * Generate a URL-safe heading ID from text.
 * Lowercase, hyphenated, deduped with suffix if needed.
 */
export declare function generateHeadingId(text: string, existing?: Set<string>): string;
/**
 * Extract headings (h2-h6) from markdown content.
 * Returns a list of TocEntry objects for building a table of contents.
 */
export declare function extractHeadings(markdown: string): TocEntry[];
//# sourceMappingURL=headings.d.ts.map