export interface SnapshotPaths {
    gitDir: string;
    workTree: string;
}
/** Idempotent init. Creates the bare repo + .gitignore-like inclusion gate. */
export declare function ensureSnapshotRepo(workspace: string, orgSlug: string): void;
/**
 * Commit the current state of `<org>/memory/` and `<org>/workflows/`. Returns
 * the new commit SHA (or null if there was nothing to commit).
 */
export declare function commitSnapshot(workspace: string, orgSlug: string, message: string): string | null;
export interface SnapshotEntry {
    sha: string;
    ts: string;
    subject: string;
}
/** Return the most recent N commits, newest first. */
export declare function listSnapshots(workspace: string, orgSlug: string, limit?: number): SnapshotEntry[];
/**
 * Revert the snapshot tree to a specific commit. Affects only the tracked
 * trees (memory/, workflows/, artifacts/), leaving the user's actual repos
 * untouched.
 *
 * Implementation: `git checkout <sha> -- <tree>` per tracked tree then a
 * follow-up commit recording the revert.
 */
export declare function revertToSnapshot(workspace: string, orgSlug: string, targetSha: string, reason?: string): {
    ok: boolean;
    newSha?: string;
    error?: string;
};