export interface AuthorOwnership {
    directory: string;
    ownershipPercentage: number;
    commits: number;
    totalCommits: number;
    busFactor: number;
}
export interface KnowledgeLossRiskResult {
    author: string;
    totalOwnedDirectories: number;
    soleOwnerDirectories: number;
    highRiskDirectories: AuthorOwnership[];
    mediumRiskDirectories: AuthorOwnership[];
    lowRiskDirectories: AuthorOwnership[];
    recoveryCost: "HIGH" | "MEDIUM" | "LOW";
}
export interface KnowledgeLossRiskOptions {
    targetAuthor?: string;
    depth?: number;
    since?: string;
    maxCommits?: number;
    minOwnershipPct?: number;
    timeoutMs?: number;
}
/**
 * Analyze knowledge loss risk: what happens when a contributor leaves.
 *
 * Combines knowledge map (bus factor per directory) with contributor analysis
 * to identify directories where a specific author (or any author) represents
 * a single point of failure.
 */
export declare function analyzeKnowledgeLossRisk(repoPath: string, options?: KnowledgeLossRiskOptions): Promise<KnowledgeLossRiskResult[]>;