import { type Corpus, type CorpusDoc } from './corpus.js';
import type { GoldenPair } from './golden-set.js';
import type { EvalReport } from './harness-types.js';
import type { EvalChunk } from './retrievers.js';
export declare function detectDbDriver(): string;
export declare function buildChunks(docs: CorpusDoc[]): Promise<EvalChunk[]>;
/** Validate each golden pair against the corpus and drop the trivially solvable ones. */
export declare function partitionTrivialPairs(candidatePairs: GoldenPair[], byId: Map<string, CorpusDoc>, textOf: (id: string) => string, scored: GoldenPair[], dropped: EvalReport['droppedPairs']): void;
/** Distinct documents by top-level directory and by extension. */
export declare function corpusComposition(corpus: Corpus): EvalReport['corpusComposition'];
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