/**
 * wikipedia-paraphrase.ts
 *
 * Loads the prebuilt Wikipedia trigram bloom filter and provides a
 * paraphrase-rate estimator. Used by content/wikipedia-paraphrase rule.
 *
 * v0.6.2 — bloom filter inlined as base64 to remove filesystem dependency.
 * Production hotfix: Vercel serverless deployments couldn't resolve the
 * relative file path. Inlining the 8 KB binary into the JS source removes
 * deployment-config dependencies and makes the rule work in any runtime
 * (Node, Bun, Cloudflare Workers, Vercel serverless, etc.).
 *
 * Bloom filter layout:
 *   m = 65536 bits  (8192 bytes)
 *   k = 3 FNV-1a-32 hash functions with distinct seeds
 *
 * FP rate ~5% for the curated corpus of ~10 k unique trigrams.
 *
 * If the underlying corpus is regenerated via `bun run build-wikipedia-bloom`,
 * also re-run the inline script that produced BLOOM_BASE64 below — see
 * `scripts/inline-wikipedia-bloom.ts` (or regenerate manually):
 *   node -e "console.log(require(node:fs).readFileSync(packages/core/data/wikipedia-trigrams.bin).toString(base64))"
 */
/** Decode and cache the bloom filter from the inlined base64 string. */
export declare function loadWikipediaBloomFilter(): Uint8Array;
/**
 * Compute the paraphrase rate of `text` against the Wikipedia reference
 * corpus. Returns a value in [0, 1] — the fraction of trigrams that are
 * present in the bloom filter. Returns 0 for text shorter than 3 tokens.
 */
export declare function wikipediaParaphraseRate(text: string): number;
/** Test-only: reset the bloom-filter cache so loadWikipediaBloomFilter
 *  re-decodes the inlined base64 on next call. Used by unit tests. */
export declare function _resetBloomCache(): void;
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