Recursive Self-Improvement for Skills (Skill RSI)

Building on an earlier project from earlier this year called SkillEval (procedural rigorous evaluations AB one version of a skill vs another) I built Skill RSI, which is free and can do these evals in a loop with a research agent who intelligently decides what to try next. I might be biased but I think it's pretty cool. You can run it standalone or as a codex plugin (there's a copy-pastable line on top of the repo you can give to Codex and it'll set everything up for you! pretty cool) and you can do a set number of iterations, use it on a schedule, or via hooks. You can put a skill file into codex, @ skill RSI, and say improve this skill, for example. It does ablation-style experiments so changes are focused and rigorous. It's free, just costs API tokens, and natively OAI-only for now (if someone wants to contribute to the repo and add a Claude version or whatever else, please do). Let me know what you think and star the repo if you don't mind! Link in comment.