UPDATE: always use “# YourClassName::manifest some-text” in the comments, or the task will not be found

If you have rake tasks and you work TDD then your doing it wrong!
Use TAP! Its like rake but auto-documenting + testable + awesome!

See the presentation!
See the slides.
See the website!
See the repo!

gem install tap

(If you really want to go crazy with sequenced task and all kinds of logic-task-chaining, this is possible too.)