tbh this feels like overengineering the wrong pain. devs aren't begging for more metadata in diffs .. they're begging for tooling that doesn't explode when someone renames a file or changes line endings. most teams can't even agree on commit message formats, and now we're gonna throw structured diff metadata into the mix? cool idea, but feels like a clean spec solving a messy human problem. the chaos isn't in the diff format/, it's in the humans using it.