How readiness should shape the way you move today

Plans are useful. They are also written in advance by someone who cannot know how you will feel on the day. Most people notice this the first time they open an app on four hours of sleep and are told to do the same session they would have done fully rested.

Readiness is a way of describing that difference. It can draw on sleep, resting heart rate, heart-rate variability, recent activity, and — importantly — what you say about how you feel. Numbers are not the whole picture, and a check-in that says "stiff back" carries information no wearable captures.

No single metric should be read as a verdict. Heart-rate variability moves for many reasons, some of them as mundane as when you went to bed or what you drank last night. A readiness figure is a summary of context. It is not a diagnosis, and it does not detect illness.

Lower readiness rarely means doing nothing. More often it means changing the shape of the session: mobility rather than load, shorter holds, a narrower range, a slower pace. Doing something appropriate beats both forcing the original plan and skipping entirely — and skipping entirely is the option most people actually take when the only choice offered is all or nothing.

Higher readiness is not permission to abandon control either. Feeling good is a fine reason to add a little load or range. It is not a reason to stop paying attention to how the movement is going, which is exactly when people get careless.

Your own feedback outranks the metrics. If a session feels wrong, that is data — and it is better data than an overnight average. Say so, and the session should change.

This is why Jinni treats readiness as one input among several, alongside your goals, your movement history, and what the camera sees while you move. Apple Health is optional; readiness still works from your own check-in if you would rather not connect it.

The real value is not optimisation. It is consistency. A routine that bends on the hard days is a routine you are still doing in three months, and that matters far more than any individual session.