export interface StructuralChange {
    file: string;
    changeType: 'added' | 'deleted' | 'modified' | 'renamed';
    isStructural: boolean;
}
export interface DiffResult {
    changes: StructuralChange[];
    currentSha: string;
    summary: string;
}
export declare function isStructuralFile(filepath: string): boolean;
export declare function getCurrentSha(repoRoot: string): Promise<string>;
export declare function getChangedFiles(repoRoot: string, sinceSha: string): Promise<DiffResult>;
export declare function getGitLogSummary(repoRoot: string, sinceSha: string): Promise<string>;
export interface ArchSnapshot {
    commitSha: string;
    date: string;
    summary: string;
    moduleCount: number;
}
export declare function getArchHistory(repoRoot: string, limit?: number, outputDir?: string): Promise<ArchSnapshot[]>;
export declare function getSnapshotContent(repoRoot: string, commitSha: string, outputDir?: string): Promise<{
    overview: string;
    modules: {
        name: string;
        slug: string;
        content: string;
    }[];
}>;