I've been using this pattern quite a bit recently for API design, and I really like it.

The big challenge with designing an API is that the only way to be confident in the design is to build a bunch of different things on top of it. But why invest all that effort in an API that you don't think is ready yet?

With coding agents the cost of building those prototypes drops to almost nothing. I can exercise a proposed API design five different ways before I commit to the shape.