I was about to write my own tool for this but then I discovered:

   git diff --color-moved=dimmed-zebra

That shows a lot of code that was properly moved/copied in gray (even if it's an insertion). So gray stuff exactly matches something that was there before. Can also be enabled by default in the git config.

Perfect. This is why I visit this website

I used autochrome[0] for Clojure code to do this. (I also made some improvements to show added/removed comments, top-level form moves, and within-string/within-comment edits the way GitHub does.)

At first I didn't like the color scheme and replaced it with something prettier, but then I discovered it's actually nice to have it kinda ugly, makes it easier to detect the diffs.

[0] https://fazzone.github.io/autochrome.html

Thanks:)

I would love if GitHub implemented this in their UI! There’s and issue: https://github.com/orgs/community/discussions/9632

That's a great solution and I'm adding it to my fallback. But also, people might be interested in diff-so-fancy[0]. I also like using batcat as a pager.

[0] https://github.com/so-fancy/diff-so-fancy

I personally agree with you. I think that stacked diffs will be more important as a way of dealing with those larger diffs.

Yep, this pattern of LLMs reviewing LLMs is terrifying to me. It's literally the inmates running the asylum.