/**
 * Query Rewriter Service
 *
 * Provides centralized query rewriting logic for semantic search and discovery.
 * Handles ADR number recognition, query expansion, and synonym recognition.
 */
/**
 * Rewrites a query to improve semantic search results.
 *
 * Features:
 * - ADR number recognition and expansion (e.g., "ADR-0016" → "ADR 0016" + "0016")
 * - Synonym recognition (e.g., "migration" → "migrate", "migrated", "migrating")
 * - Query expansion for better embedding matches
 */
export declare class QueryRewriter {
    /**
     * Rewrites a query to improve semantic search results.
     *
     * @param query The original query string
     * @returns The rewritten query with expanded terms
     */
    rewriteQuery(query: string): string;
    /**
     * Extracts ADR numbers from a query string.
     *
     * Recognizes patterns like:
     * - "ADR-0016"
     * - "ADR 0016"
     * - "0016"
     * - "16" (with context suggesting ADR)
     *
     * @param query The query string
     * @returns Array of extracted ADR numbers (without leading zeros)
     */
    extractAdrNumbers(query: string): string[];
    /**
     * Expands a query with ADR number variants.
     *
     * Adds variants like:
     * - "ADR 0016"
     * - "0016"
     * - "016" (with leading zero)
     *
     * @param query The original query
     * @param adrNumbers Array of ADR numbers to expand
     * @returns Expanded query string
     */
    expandAdrQuery(query: string, adrNumbers: string[]): string;
    /**
     * Expands synonyms in a query.
     *
     * Currently handles common patterns:
     * - "migration" → "migrate", "migrated", "migrating"
     * - Can be extended with more synonym mappings
     *
     * @param query The query string
     * @returns Query with expanded synonyms
     */
    private expandSynonyms;
}
//# sourceMappingURL=query-rewriter.d.ts.map