I dunno, I'm working on a TUI for a Claude Code like UI in Clojure right now, and after examining all of the available libraries and tools, just had Opus work with me to generate a new library (with tests) that does what I want.

Works great, and it's easy to add features to (as evidenced by the dozen or stuff I've added already).

Is that a "new library"? It certainly doesn't show up in any statistic the OP could point to.