/**
 * PrimeSearchPipeline — Enrichment Layer
 *
 * Multi-query parallel search + scenario routing + session history accumulation.
 * Replaces TaskKnowledgeBridge with full search pipeline integration.
 *
 * @module service/task/PrimeSearchPipeline
 */
import type { SlimSearchResult } from '#service/search/SearchTypes.js';
import type { ExtractedIntent } from './IntentExtractor.js';
/** Slim search result (re-export for external use) */
export type { SlimSearchResult } from '#service/search/SearchTypes.js';
export interface PrimeSearchMeta {
    queries: string[];
    scenario: string;
    language: string | null;
    module: string | null;
    resultCount: number;
    filteredCount: number;
}
export interface PrimeSearchResult {
    relatedKnowledge: SlimSearchResult[];
    guardRules: SlimSearchResult[];
    searchMeta: PrimeSearchMeta;
}
/** Minimal SearchEngine shape — duck-typed for DI flexibility */
interface SearchEngineLike {
    search(query: string, options?: {
        mode?: string;
        limit?: number;
        rank?: boolean;
        context?: {
            sessionHistory?: Array<{
                content?: string;
            }>;
            language?: string;
            intent?: string;
        };
    }): Promise<{
        items?: unknown[];
    }>;
}
export declare class PrimeSearchPipeline {
    #private;
    constructor(searchEngine: SearchEngineLike);
    /**
     * Core method: multi-query search + scenario routing + result merging.
     */
    search(intent: ExtractedIntent): Promise<PrimeSearchResult | null>;
    /**
     * Reset session history (called on new session start).
     */
    resetSession(): void;
}