runCommand -package:wai-app-static -package:graphviz -package:pandoc-plot -package:xmonad-contrib -package:shake-plus -package:github-release -package:options -package:quickcheck-state-machine -package:process -package:cabal-install -package:structured-cli -package:hledger -package:shake package:beam-migrate -is:exact

Called before a command is about to run. The first argument is the step index and the second is a string representing the command about to be run.