import type { GitDelta } from "./types";
export interface UntrackedEntry {
    path: string;
    size: number;
    sha256: string;
}
export interface PreserveResult {
    gitDelta: GitDelta;
    trackedDiff: string;
    trackedDiffSha256: string;
    untrackedManifest: UntrackedEntry[];
    stashRef: string | null;
    snapshotComplete: boolean;
}
/**
 * Capture + snapshot a (possibly dirty) worktree without mutating it. Safe to call on a clean
 * tree (returns empty evidence). Never deletes, resets, or cleans.
 */
export declare function preserveDirtyWorktree(workspace: string): PreserveResult;