What features would you like for a command line work item tracking tool?

One of my team is looking into what a command line tool for Work Item Tracking might look like. We'd like it to be something that you could use without a GUI so that it could be suitable for scripting.

What would you like it to do? What problems would you use it to solve? Does it sound useful to you?

I'd love to have your input - I want to make sure we're creating something that is useful to you. Feel free to post a comment here, or contact me directly.

Thanks!