The script is currently very useful since its well maintained, does the job and is extremely simple to integrate.

You could add this to the installation
1- Place the file inside your project folder directory
2- Call it via $SRCROOT/unused.rb xcode

Given that there are a lot of false positives like mentioning the word protocol in a comment or others, it would be nice to have a way like swift-lint to disable specific warnings.

ex unused-disable-this which would disable the warning on the specific line
unused-disable-all which would disable warnings for all the class

What do you think about it ?

Awesome project btw