import type { ParsedPage, RuleResult } from "../../types.js";
export declare const THIN_BODY_THRESHOLD = 50;
export declare const SOFT_404_PATTERNS: RegExp;
/**
 * Confidence model for soft-404 detection:
 *
 *   Signal A — thin body (wordCount < THIN_BODY_THRESHOLD)
 *   Signal B — soft-404 pattern in title, h1, or opening content
 *
 *   A AND B  → warning / high  (strong: both signals agree)
 *   B only   → info / low      (weak: substantive body, pattern might be
 *                                editorial, e.g. "How we handle 404 errors")
 *   A only   → no finding      (stub/coming-soon pages are legit)
 */
export declare function soft404Rule(pages: ParsedPage[]): RuleResult[];
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