import type { RepositoryGraphCoverageAuthority, RepositoryGraphFreshness, RepositoryGraphLimits, RepositoryGraphSnapshot } from '@neurcode-ai/contracts';
export declare const REPOSITORY_GRAPH_METADATA_SCHEMA_VERSION: "neurcode.repository-graph-metadata.v1";
export interface RepositoryGraphMetadata {
    schemaVersion: typeof REPOSITORY_GRAPH_METADATA_SCHEMA_VERSION;
    graphId: string;
    generation: number;
    updatedAt: string;
    storageFormat: RepositoryGraphSnapshot['storage']['format'];
    graphBytes: number;
    nodeCount: number;
    edgeCount: number;
    limits: RepositoryGraphLimits;
    coverage: RepositoryGraphSnapshot['coverage'];
    coverageAuthority?: RepositoryGraphCoverageAuthority;
    freshness: RepositoryGraphFreshness;
}
export declare function repositoryGraphMetadataPath(repoRoot: string): string;
export declare function metadataFromGraph(graph: RepositoryGraphSnapshot, graphBytes: number, counts?: {
    nodeCount: number;
    edgeCount: number;
}): RepositoryGraphMetadata;
export declare function writeRepositoryGraphMetadata(repoRoot: string, graph: RepositoryGraphSnapshot, graphBytes: number, counts?: {
    nodeCount: number;
    edgeCount: number;
}): void;
export declare function readRepositoryGraphMetadata(repoRoot: string): RepositoryGraphMetadata | null;
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