async function captureShellSnapshot(opts: ShellSnapshotWrapOptions): Promise<string | null> {

const shellName = path.basename(opts.shell);

const captureOutputDir = await fs.mkdtemp(

path.join(os.tmpdir(), `openclaw-shell-snapshot-${process.pid}-`),

);

const captureOutputDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-shell-snapshot-"));

await fs.chmod(captureOutputDir, 0o700);

const captureOutputPath = path.join(captureOutputDir, "snapshot.out");

const captureOutputFile = await fs.open(captureOutputPath, "wx", 0o600);