miniblog.

Compiler error messages is such a deep topic. Even in rustc, a mature compiler that invests effort in diagnostic quality, I find interesting issues every few months. (The majority have been fixed pretty quickly, so it's really rewarding to file issues.)

I had a third attempt at porting difftastic from Dijkstra to A*, and I've eventually concluded that A* just isn't worth it for the implementation complexity. I had fun writing it up though, and I've even attempted ASCII art for building intuitions:

I asked Hermes Agent to change how it set thread titles, and it patched its own source code! Self modifying code is hard to reason about even in a deterministic environment. I'd already limited Hermes access to the todoist API and web search out of an abundance of caution.