import type { EntityMaskPattern, ParsedPage, RuleResult } from "../../types.js";
export interface SummaryBaitOptions {
    /** Words considered "the opener" for fact-distribution analysis. Default: 150. */
    openerWordCount?: number;
    /** Fraction of citable facts that, when packed into the opener, triggers the rule. Default: 0.7. */
    openerFactConcentrationThreshold?: number;
    /** Minimum distinct facts on the page before the distribution check runs. Default: 3. */
    minFactsToAnalyze?: number;
}
/**
 * Composite rule — fires when a page is "optimized for summarization, not retention":
 *   1. Has a strong answer-first opener (AI Overviews will cite it), AND
 *   2. Has no interactive / downloadable / gated value below the fold, AND
 *   3. Has its citable facts concentrated in the opener (nothing deeper to scroll for).
 *
 * The overlap of these three is the worst-case zero-click page: readers (and AI engines)
 * get everything they need from the summary, and the click-through never happens.
 */
export declare function summaryBaitRule(pages: ParsedPage[], entityPatterns: EntityMaskPattern[], options?: SummaryBaitOptions): RuleResult[];
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