/**
 * KnowledgeReader — query interface over the index (KG Req 5.1–5.7).
 *
 * Reads never touch the YAML sources; everything is served from the
 * KnowledgeIndex. Subgraph traversal is breadth-first in application code —
 * adequate for the target scale of ≤1000 entities (design DD1).
 *
 * @module
 */
import type { Entity, Relationship, GraphQueryResult } from './types.js';
import type { KnowledgeIndex } from './index/knowledge-index.js';
export interface QueryOptions {
    type?: string;
    minConfidence?: number;
    limit?: number;
}
export interface EntityDetail {
    entity: Entity;
    inbound: Relationship[];
    outbound: Relationship[];
}
export declare class KnowledgeReader {
    private readonly index;
    constructor(index: KnowledgeIndex);
    /** Full-text search with relationships for the matched set (KG Req 5.1). */
    search(term: string, options?: QueryOptions): GraphQueryResult;
    /** Single entity with inbound and outbound relationships (KG Req 5.2). */
    get(entityId: string): EntityDetail | undefined;
    /** Subgraph of all entities within `depth` hops (KG Req 5.3). */
    subgraph(entityId: string, depth: number): GraphQueryResult;
}
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