import type { EmbeddingModel } from "ai";
import type { ObservationRepository } from "../db/observations";
import type { ObservationType, SearchResult } from "../types";
interface HybridSearchOptions {
    type?: ObservationType;
    limit?: number;
    projectPath: string;
    hasVectorExtension?: boolean;
    importanceMin?: number;
    importanceMax?: number;
    createdAfter?: string;
    createdBefore?: string;
    concepts?: string[];
    files?: string[];
}
/**
 * Perform hybrid search combining FTS5 text search with vector similarity,
 * merging results via Reciprocal Rank Fusion (RRF).
 */
export declare function hybridSearch(query: string, observations: ObservationRepository, embeddingModel: EmbeddingModel | null, options: HybridSearchOptions): Promise<SearchResult[]>;
export {};
//# sourceMappingURL=hybrid.d.ts.map