So, updated the description. Hopefully, that will make it clearer.

Thanks again for adding a new requirement! :-)

Welcome to a profession where requirements are changing all the time. :-)

Jokes aside, the kata is designed to be somewhat vague to encourage a more test-driven way of working.

I added the last sentence about "figuring things out from the test cases" to emphasize this, but I realize that the final colon may be interpreted as the "test cases" are in the example that follows. I'm not sure if I can change this after the kata has been published, but I'll try.

Thanks for your input! :-)