I like the ease of use of 'git lfs track "*.psd"' and being able to use normal git commands after that. Would it be possible to extend git-annex with a command

I like the ease of use of 'git lfs track "*.psd"' and being able to use normal git commands after that. Would it be possible to extend git-annex with a command that lets you set one or more extensions? By using git hooks you can probably ensure that the normal git commands work reliably.