import type { EntityMaskPattern, ParsedPage } from "../types.js";
export interface DeriveOptions {
    /** Only derive from URL-template clusters with at least this many siblings. */
    minClusterSize?: number;
    /** Ignore tokens shorter than this. */
    minTokenLength?: number;
    /** Placeholder substituted for masked entities. */
    placeholder?: string;
    /** Enable URL-slug token derivation. */
    urlSlug?: boolean;
    /** Enable capitalized-content-token derivation. */
    contentDiff?: boolean;
    /** Hard cap on total derived tokens (over-masking guard). */
    maxTokens?: number;
}
type MaskPage = Pick<ParsedPage, "url" | "contentText">;
export declare function deriveEntityPatterns(pages: ReadonlyArray<MaskPage>, opts?: DeriveOptions): EntityMaskPattern[];
export {};
//# sourceMappingURL=auto-entity-mask.d.ts.map