The documentation is very sparse for the C# linter. In fact, the only place I've been able to find any information is this [[ http://stackoverflow.com/questions/27830918/how-to-get-a-c-sharp-arcanist-linter-working | stack overflow question]]. This also does not cover what the discovery map is, why it's necessary, and how to build one. Please add details in the documentation as how to install this linter properly and create its .arclint entry.