I like this but would think "Semantic" is pushing it a bit as it relies on function names and changes therein having a direct mapping to meaning with standard text processing.

In fact, I fully expected a use of LLM to derive those meaningful descriptions before I checked the repo.

Anyway I definitely see this as a useful thing to try out as a potential addition to the armoury, but as we go further along the route to AI-coding I expect the diffs to be abstracted even further (derived using AI), for use by both agentic and human contributors.