/**
 * `knowledge compact` — deduplicate and normalize the YAML source files.
 *
 * After long append-only accumulation, files can carry superseded duplicate
 * documents. Compaction keeps the latest version of each id (by lastVerified),
 * drops orphaned relationships, sorts documents by id, and rewrites each file
 * with normalized formatting. This is the one sanctioned exception to the
 * append-only rule (KG Req 12.5, 12.6) and the deliberate deletion path for
 * merge leftovers. It also folds the one-file-per-record layout back into the
 * per-type files and removes the record files it folded
 * (autopilot-merge-lane-stalls-on-conflicts/AC-6).
 *
 * Requirements: KG 12.6
 *
 * @module
 */
import type { YamlSourceStore } from './yaml-source.js';
import type { KnowledgeIndex } from './index/knowledge-index.js';
export interface CompactResult {
    duplicatesRemoved: number;
    orphanRelationshipsRemoved: number;
    filesRewritten: string[];
    warnings: string[];
}
export declare function compactKnowledge(source: YamlSourceStore, index: KnowledgeIndex): CompactResult;
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