EasySkript allows you to easily install Skripts with the command /skinstall.
If you develop Skripts, you can tell your users to install EasySkript and simply execute /skinstall <Skript URL>. Another advantage is that if Skript is not yet installed, EasySkript will install it!
The source code is available here: https://github.com/IamGalaxias/EasySkript.
If you're a server owner and want to be able to easily install plugins (not Skripts), try EasyInstall!