/**
 * MECE Governance — 知识去重与覆盖度审计核心逻辑 (FR-N01)
 *
 * AC1: 入库前 BGE 向量语义查重
 * AC2: 全库语义去重扫描
 * AC3: 去重报告含合并建议
 * AC4: --auto 模式自动合并
 * AC5: 覆盖度审计
 * AC6: 语义相似度必须用 BGE 向量 embedding
 * AC7: --domain 按域限定扫描范围
 */
export interface DuplicatePair {
    entryA: {
        id: string;
        title: string;
        content: string;
        domain: string | null;
    };
    entryB: {
        id: string;
        title: string;
        content: string;
        domain: string | null;
    };
    similarity: number;
}
export interface MergeSuggestion {
    pair: DuplicatePair;
    keepId: string;
    removeId: string;
    strategy: 'keep_longer' | 'keep_newer' | 'merge_content';
    mergedContentPreview: string;
}
export interface DeduplicateReport {
    totalEntries: number;
    scannedEntries: number;
    duplicatePairs: DuplicatePair[];
    mergeSuggestions: MergeSuggestion[];
    autoMerged: number;
    domain?: string;
}
export interface CoverageGap {
    keyQuestion: string;
    covered: boolean;
    coveringEntryIds: string[];
    explanation: string;
}
export interface CoverageReport {
    domainId: string;
    purpose: string;
    totalQuestions: number;
    coveredQuestions: number;
    gaps: CoverageGap[];
}
export interface PreIngestCheckResult {
    isDuplicate: boolean;
    similarity: number;
    matchedEntryId?: string;
    matchedEntryTitle?: string;
    matchedEntryContent?: string;
}
/**
 * Check if a new entry's embedding is a near-duplicate of existing entries.
 * Returns the best match if similarity > threshold (from kivo.config.json).
 */
export declare function checkPreIngestDuplicate(newVector: number[], dbPath?: string, threshold?: number): PreIngestCheckResult;
export interface DeduplicateOptions {
    /** Similarity threshold for flagging duplicates (reads from kivo.config.json by default) */
    threshold?: number;
    /** Auto-merge entries with similarity > 0.95 */
    auto?: boolean;
    /** Limit scan to a specific domain */
    domain?: string;
}
/**
 * Scan the entire knowledge base for semantic duplicates using BGE embeddings.
 * Returns a report with duplicate pairs and merge suggestions.
 */
export declare function runDeduplicateScan(options?: DeduplicateOptions): Promise<DeduplicateReport>;
export interface CoverageAuditOptions {
    domain: string;
}
/**
 * Audit knowledge coverage against a domain's keyQuestions.
 * Uses LLM to judge whether each keyQuestion is covered by existing entries.
 */
export declare function runCoverageAudit(options: CoverageAuditOptions): Promise<CoverageReport>;
/**
 * checkDuplicate — convenience wrapper for cmd-learn-from-badcase (FR-N02 AC6).
 * Embeds the content with BGE and checks against existing entries.
 */
export declare function checkDuplicate(content: string, options?: {
    cwd?: string;
}): Promise<{
    isDuplicate: boolean;
    matchId?: string;
    similarity?: number;
}>;
export declare function formatDeduplicateReport(report: DeduplicateReport): string;
export declare function formatCoverageReport(report: CoverageReport): string;
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