This is a Constraint - not a Kata!
Constraints can be applied to any given Kata to focus on specific techniques and / or practices. They are meant as an extreme perspective so you can clearly feel the difference to what you do usually.
Inspired by J.B. Rainsberger
I call a design simple to the extent that it:
- Passes its tests
- Minimizes duplication
- Maximizes clarity
- Has fewer elements