The implemented subset supports one template operand and -d/--directory.The template must end in at least three X characters. A file is created withmode 0600; a directory is created with mode 0700. The command uses thereleased MoonBit entropy API and CreateNew/mkdir, retrying collisions up to100 times. Unsupported GNU options are rejected before any path is created.
The default template is $TMPDIR/tmp.XXXXXX, falling back to /tmp/tmp.XXXXXX.Platform-specific template and permission behavior remains subject to thepublic async filesystem API and is covered by the command compatibility record.