/**
 * prefixes.ts — the input-prefix convention table.
 *
 * Mirrors resources/embeddings-provider.ts's Phase 2 behavior (flair#504):
 * HFE 0.3.0's engine prepends a literal `"search_document: "` /
 * `"search_query: "` string ahead of the text it hands to the model, for
 * nomic-family models trained on that asymmetric-prefix convention. flair-
 * bench talks to node-llama-cpp directly (no HFE in the loop — see the
 * package README for why), so it has to replicate that string-prepend
 * itself rather than pass an `inputType` option through to a wrapper that
 * does it.
 *
 * KEYED ON MODEL FILENAME, for now — nomic is the only convention flair
 * ships today, and there's exactly one production model family to match.
 * This table is the seam for adding more: a future entry keys on another
 * filename pattern (or, if a GGUF ever carries a documented convention-id
 * in its own metadata, that becomes the preferred match — filename is a
 * pragmatic fallback, not a design commitment). Nomic upstream has a request
 * to carry this in the GGUF/HFE registration surface itself rather than
 * every consumer re-deriving it from a filename convention — see
 * harper-fabric-embeddings#4 (upstream proposal, not yet merged as of this
 * writing).
 *
 * A model whose filename matches no entry gets `undefined` from
 * `resolvePrefixConvention()` — texts are embedded unprefixed, and the
 * result is labeled accordingly rather than silently guessing.
 */
export interface PrefixConvention {
    /** Human-readable id, surfaced in output so a reader knows which convention (if any) applied. */
    id: string;
    documentPrefix: string;
    queryPrefix: string;
}
/** Resolve the prefix convention for a GGUF file, by basename. `undefined` = no known convention (embed unprefixed). */
export declare function resolvePrefixConvention(fileName: string): PrefixConvention | undefined;
export declare function applyDocumentPrefix(text: string, convention: PrefixConvention | undefined): string;
export declare function applyQueryPrefix(text: string, convention: PrefixConvention | undefined): string;