afew is an initial tagging script for notmuch mail:
Its basic task is to provide automatic tagging each time new mail is registered with notmuch. In a classic setup, you might call it after 'notmuch new' in an offlineimap post sync hook.
It can do basic thing such as adding tags based on email headers or maildir folders, handling killed threads and spam.
In move mode, afew will move mails between maildir folders according to configurable rules that can contain arbitrary notmuch queries to match against any searchable attributes.
fyi: afew plays nicely with alot, a GUI for notmuch mail ;)