import type { KnowledgeGraph } from './knowledge-graph.js';
import type { Insight, InsightResult } from './graph-types.js';
import type { ResearchTask } from '../research/research-task-types.js';
export interface GraphInsightEngineOptions {
    isolatedThreshold?: number;
    sparseEdgeRatio?: number;
    minCommunitySize?: number;
    maxBridgeDetectionNodes?: number;
    idGenerator?: () => string;
}
export declare class GraphInsightEngine {
    private readonly isolatedThreshold;
    private readonly sparseEdgeRatio;
    private readonly minCommunitySize;
    private readonly maxBridgeDetectionNodes;
    private readonly idGenerator;
    constructor(options?: GraphInsightEngineOptions);
    analyze(graph: KnowledgeGraph): InsightResult;
    findIsolatedNodes(graph: KnowledgeGraph): Insight[];
    findBridgeNodes(graph: KnowledgeGraph): Insight[];
    findSparseCommunities(graph: KnowledgeGraph): Insight[];
    findUnexpectedLinks(graph: KnowledgeGraph): Insight[];
    triggerResearchFromInsights(insights: Insight[]): ResearchTask[];
    private detectCommunities;
}
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