I also vote for "do what gitignore does". My plan is to add support for the new file name, deprecate .agignore, and update docs everywhere. But it'd be a while before I removed .agignore completely.

I really like .ignore, and I like it because it's generic. The information I want it to convey is:

> Dear programs,

> If you are traversing this directory, please ignore these things.

Of course, some programs could still benefit from having application-specific ignore files, but it'd cut down on a lot of cruft and repetition.