/**
 * What the evaluation harness's embedding tier (Tier 2.5) ran with, so a
 * measurement that used it names the exact model files and attack-vector set.
 *
 * transformers.js loads `Xenova/all-MiniLM-L6-v2` at revision `main` and caches
 * the files it downloads; this module hashes the cached files, so the record
 * says what was actually loaded rather than what was requested. When the
 * quantized ONNX file's SHA-256 is one this module knows, it also names the
 * Hub commit that file came from.
 *
 * @module agent-threat-rules/eval/embedding-provenance
 */
/** The files transformers.js reads for a quantized feature-extraction pipeline. */
export declare const EMBEDDING_MODEL_FILES: readonly string[];
/**
 * SHA-256 of onnx/model_quantized.onnx -> the Xenova/all-MiniLM-L6-v2 commit it
 * belongs to. Checked 2026-10-19 against the Hub: the LFS sha256 of that file at
 * 751bff37 (2025-07-22, the head of `main` that day), whose config.json,
 * tokenizer.json and tokenizer_config.json git blob ids also equal the cached
 * files'.
 */
export declare const KNOWN_MODEL_REVISIONS: Readonly<Record<string, string>>;
export interface EmbeddingProvenance {
    readonly model_id: string;
    readonly quantized: true;
    readonly revision_requested: 'main';
    /** Hub commit whose quantized ONNX file has the loaded file's sha256, or null when not known here. */
    readonly revision_resolved: string | null;
    readonly transformers_package: '@xenova/transformers';
    readonly transformers_version: string;
    /** sha256 of each model file as loaded from the transformers.js cache; null if the file is absent. */
    readonly model_files_sha256: Readonly<Record<string, string | null>>;
    readonly attack_embeddings: string;
    readonly attack_embeddings_sha256: string;
    readonly similarity_threshold: number;
}
export declare function describeEmbeddingFiles(cacheDir: string, transformersVersion: string, attackEmbeddingsPath: string, attackEmbeddingsRel: string): EmbeddingProvenance;
/** The record for the installed @xenova/transformers and its cache. */
export declare function embeddingProvenance(attackEmbeddingsPath: string, attackEmbeddingsRel: string): Promise<EmbeddingProvenance>;
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