If you're talking about regressions, then yea that's definitely a problem. Currently I'm thinking the AI improves the scripts for its use case locally, being mindful of not breaking other languages. The improvements are submitted by AI, and then I need to use AI again to regression test the improvements.

I've already done it once now with a PR that adds Chinese support, but I think it will need to become more automated with a standard set of videos to test against to catch regressions.