UPDATE 2015-04-29:The extension described here has been removed. For more details please see this post.
As a little helpful supplement to my last post we have released the new extension "NRefactory Issue & Action Templates for Developers" on Visual Studio Gallery:
It's purpose: Allowing developers to quickly start with their own code refactoring or analyzer for NRefactory or NR6Pack. The templates include all the basic glue code for you, so you just need to continue with your logic.
After installing the extension (available for Visual Studio 2013 and 2015), you will see a new directory "NRefactory" in your C# templates, when opening the "Add New Item" dialog:
The template uses the chosen class name as basis for your action/issue:
Please note that these templates are only intended for analyzer implementation based on NRefactory 6!