I've been working on pi-protokoll, an extension for the Pi coding agent. When I ran long sessions on a local model, compaction kept stalling for minutes because the model had to dismiss its cache and read the whole conversation as well as its compacted version. So now it writes a short protocol at the end of each turn, and compaction mostly just assembles those. Started as a quick fix, but by now it's gotten pretty polished: https://github.com/sebion7125/pi-protokoll