Top 20 NuGet recordable Packages
INotifyPropertyChanged, Recordable (undo/redo) and Weak Event patterns. An official PostSharp pattern library.
Command, Dependency Property and Attached Property patterns. Also contains WPF controls for PostSharp.Patterns.Model. An official PostSharp pattern library.
Redistributable components for package 'PostSharp.Patterns.Xaml'. This package should only be installed as a dependency. (This is not the package you are looking for).