/**
 * Reader Mode - Mozilla Readability Integration
 *
 * Extracts clean article content from web pages using Mozilla's Readability.js.
 * This module strips navigation, ads, and boilerplate to return main article content.
 *
 * CRITICAL: Content extraction happens BEFORE sanitization. The pipeline is:
 * Playwright renders → Readability extracts → Sanitizer runs → Token ceiling applied
 */
import type { Result } from '../types.js';
/**
 * Result from reader mode extraction
 */
export interface ReaderResult {
    title: string;
    byline: string | null;
    publishedTime: string | null;
    content: string;
    excerpt: string | null;
    wordCount: number;
    readerModeAvailable: boolean;
}
/**
 * Extract clean article content using Mozilla Readability
 *
 * @param html - Rendered HTML from Playwright
 * @param url - Original URL (required for relative link resolution)
 * @returns Result containing extracted article or fallback to full HTML
 */
export declare function extractArticle(html: string, url: string): Result<ReaderResult, Error>;
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