Topic on Extension talk:AbuseFilter/Rules format

Can someone explane me how to use "is_proxy" instruction? In the description it show that it returns "true" (boolean), but than it shows that it's an integer data type, which is true?

I've never actually used it, but that probably means that it's 1 when the edit was performed through a proxy, and 0 otherwise.

Thank you @Matma Rex: is this instruction actually supported in Wikimedia projects?

Correct: apparently, AutoProxyBlock is using integers rather than booleans. I've updated the docs.

And no, AutoProxyBlock is not installed on Wikimedia projects.