/**
 * v1.3.6 §3.2 — originality gate (anti-reskin).
 *
 * Ported from agency-agents `check-agent-originality.sh`: detect when a new
 * asset's prose is largely a copy of an existing one (a "re-skin" — same role
 * rewritten under a new name). We do this statically, without behavioural eval:
 * neutralize entity names, slice text into N-word shingles, and measure how
 * much of each asset's shingle set also appears in *another* asset.
 *
 *   overlap(A) = max over B≠A of |shingles(A) ∩ shingles(B)| / |shingles(A)|
 *
 * FAIL ≥ 0.40 (likely re-skin / role overlap), WARN ≥ 0.20. Used for both
 * skills and agents (260618 Part D/G2). Pure — no fs, no domain types.
 */
export interface OriginalityItem {
    /** Asset id, e.g. "skill-manager" or "product/product-manager". */
    id: string;
    /** Prose to compare — typically description + SKILL.md body. */
    text: string;
}
export interface OriginalityFinding {
    /** The asset whose text is largely duplicated. */
    id: string;
    /** The other asset it most overlaps with. */
    against: string;
    /** Fraction of `id`'s shingles also present in `against` (0..1). */
    overlap: number;
    level: "fail" | "warn";
}
export interface OriginalityOptions {
    /** Shingle window in words. Default 8 (agency-agents). */
    shingleSize?: number;
    /** ≥ this fraction → fail. Default 0.40. */
    failThreshold?: number;
    /** ≥ this fraction → warn. Default 0.20. */
    warnThreshold?: number;
}
/**
 * Neutralize entity-specific tokens so a pure re-skin (identical text except
 * the asset name) reads as near-total overlap. Lowercases, drops the asset's
 * own name segments, strips markdown/punctuation, collapses whitespace.
 */
export declare function neutralize(text: string, id: string): string;
/** Word shingles (sliding window of `size`) for a neutralized string. */
export declare function shingles(neutralized: string, size: number): Set<string>;
/**
 * Run the originality gate across a corpus. Returns one finding per asset that
 * crosses the warn threshold (its single worst overlap), highest overlap first.
 */
export declare function checkOriginality(items: OriginalityItem[], opts?: OriginalityOptions): OriginalityFinding[];