/**
 * profile-communities — co-author community detection (#1501).
 *
 * Label-propagation communities (deterministic variant: sorted node order,
 * lexicographic tie-break — no python-louvain dependency, the graceful fallback
 * the issue calls for) + modularity Q + bridge-node detection (high betweenness).
 *
 * @source historical: profiles/community_detection.py
 */
export interface Community {
    label: string;
    members: string[];
}
export interface CommunityResult {
    communities: Community[];
    modularity: number;
    bridges: {
        node: string;
        betweenness: number;
    }[];
}
/** Detect co-author communities + modularity + bridge nodes. */
export declare function detectCommunities(corpusRoot: string, minModularity?: number): CommunityResult & {
    warning?: string;
};
/** Render communities + modularity + bridges as markdown. */
export declare function renderCommunities(r: CommunityResult & {
    warning?: string;
}): string;
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