/** Returns the absolute path to the current git worktree root. Throws outside a git repo. */
export declare function getWorktreeRoot(): Promise<string>;
/**
 * Returns a filesystem-safe key for the current worktree, unique across
 * worktrees of the same repo. Format: `<basename>-<sha8>` where sha8 is
 * the first 8 hex chars of sha256(toplevel). Falls back to sha8-only if
 * the basename contains characters outside SAFE_SEGMENT.
 */
export declare function getWorktreeKey(): Promise<string>;