gistfile1.cs

// <Name>Static fields should be prefixed with a 's_'</Name>
warnif count > 0 from f in Application.Fields where 
  !f.NameLike (@"^s_") && 
   f.IsStatic && 
  !f.IsLiteral && 
  !f.IsGeneratedByCompiler && 
  !f.IsSpecialName && 
  !f.IsEventDelegateObject
select new { f, f.SizeOfInst }  

// This naming convention provokes debate.
// Don't hesitate to customize the regex of 
// NameLike to your preference.