We've decided that it makes more sense to post our sdk files on github rather than ship with the game. It's easier to find the files and you can use the source to modify the program to your needs. For the workshop tool there is a ./bin folder that contains the built program.
You do have to have a steam_appid.txt file in order to run the program. That file contains the steam app id of the target file. So for GB, you put in one appid, for WL another. We've also included the two sample files, so it should be pretty easy. It's a very basic program and I think it's based on other examples we've seen.
We also are putting our AI source and our other SDK tools here.