WHAT IS ARCANIST? Arcanist is the command-line tool for Phabricator. It allows you to interact with Phabricator installs to send code for review, download patches, transfer files, view status, make API calls, and various other things. You can find a complete user guide here: http://www.phabricator.com/docs/phabricator/article/Arcanist_User_Guide.html For more information about Phabricator, see: http://phabricator.org/