StyleCop

To install:

1. In MonoDevelop in the menubar click Tools and then Add-in Manager.
2. Click Gallery.
3. In the search box in the upper right type StyleCop.
4. Should be one hit, select it and click Install.

To use:

1. In MonoDevelop in the menubar click Tools and then Run StyleCop.
2. You should see errors highlighted in your current file, if any.
3. Errors are also presented as compiler warnings.
4. Run like this it scans the entire project, you can also start it by right clicking a file tab to run on just that file.