The first node of a Texinfo file is the Top node, except in an included file (see Include Files). The Top node should contain a short summary, copying permissions, and a master menu. See The Top Node, for more information on the Top node contents and examples.
Here is a description of the node pointers to be used in the Top node:
Usually, all Info files are installed in one system-wide Info tree (often constructed from multiple directories). In this case, use ‘(dir)’ as the parent of the Top node; this specifies the top-level node in the dir file, which contains the main menu for the Info system as a whole.
See Installing an Info File, for more information about installing an Info file in the info directory.
It is usually best to leave the pointers off entirely and let the tools implicitly define them, with this simple result: