how to best write a rule that corrects missing space before subcommand e.g. npminstall, gitclone

As far as I can tell thefuck is unable to correct `gitclone http://...` or `npminstall some-long-package...`

I'm sure I could easily create individual rules that work only for `npm` or `git` but I'm curious if anyone has any tips how I could make a generic rule that works for a bunch of programs with subcommands.