There are eighteen phrases of power that can be invoked within a sequence of commands. Points are earned for invoking and repeating these phrases, as described below.
The shortest phrase of power is the three character phrase "Ei!". The longest phrase of power is of length fifty-one. The phrases of power can be found in contest artifacts, tweets, and background literature and media.
So this document isn't complete -- you have to search Twitter and/or other stuff to get all the rules?
Support is available on irc.freenode.net in #icfp-contest, and on Twitter @ICFPContest2015.
Possibly this should be ICFP Programming Contest Problem Specification? I'm sure the International Conference on Functional Programming has different problems.