[oso2k]

When you say, "there is no standard way to list out the available commands", do you mean like a `make help`?

https://gist.github.com/prwhite/8168133#gistcomment-3114855

[lytedev]

While you you could argue that this is a convention -- I'd say this isn't even a common one -- it's still a long way from being "standard".

[jackewiehose]

"make help" is definitely not a standard. For all I know "make help" builds help.exe. But there is a standard way to get available commands: Just look at the README or open the Makefile with a text-editor!

The lack of a standard argument for getting help doesn't make it problematic for use as a command runner. You can't get atomatically all available commands from a Makefile just like you can't get all command-line flags from an executable. The program/Makefile has to provide it by itself.