/** Field-aware BM25 retrieval over immutable tool documents. @module dsh-tool-retriever/retrieval/bm25f */
import type { ResolvedConfig } from '../config.ts';
import type { ToolDocument, ToolSearchHit } from './types.ts';
/**
 * Rank one live catalog with strict canonical-name matching followed by BM25F.
 * @param query - Raw model-supplied query.
 * @param documents - Deterministic projections of currently visible tools.
 * @param config - Resolved scoring and result-count configuration.
 * @returns Stable candidates ordered by exact match, BM25F score, then name.
 */
export declare function retrieveTools(query: string, documents: readonly ToolDocument[], config: ResolvedConfig): ToolSearchHit[];
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