I'm doing some reading about the pattern, and wondered if Delta Lake has any functionality that supports it? Apache Iceberg has built-in support, and Apache Hudi has Pre-Commit Validators which aren't quite the same thing but in the same kind of ballpark at least. Thanks.

Not yet, but it's in the roadmap

thanks. do you have a issue link I can follow?

https://delta.io/roadmap looks like this is broken. I saw it before