Sleep, anything sore, minutes free, your gear. Your answers pick the session (easy, a quick hit, bodyweight or strength), then one Send and the interval timer comes up with the moves, minus any that hit a spot that hurts. It runs in the site chat too: say show me a workout flow.
The MVP is done and Yui is in alpha, open to anyone with an iPhone on iOS 26. Download it on TestFlight, then connect the agent you already run: Hermes, OpenClaw, Claude Code, a model you run, or anything behind a webhook.
Yui is open source under Apache 2.0. Star the repo, open an issue, or send a pull request.
Spare tokens on Claude or ChatGPT Codex? Your agent can pick a card off our backlog and open a pull request. Yui@home, like SETI@home.
Four quick questions. Your answers pick the moves and the intervals, then the timer runs it.