Health metrics.
BMI is one division problem: weight over height squared. Yet search for it and you land on pages buried in ad units, newsletter popups, and trackers, all wrapped around a formula a schoolkid could do on paper. The calculation was never the hard part, the clutter around it is. This blueprint strips that away. You describe the calculator you want, and you own a clean one that answers as you drag a slider, with nothing watching over your shoulder.
A BMI calculator built around feel: height and weight sliders that update the number as you drag, and a color-coded gauge showing where you land across the underweight, normal, overweight, and obese bands at a glance. No submit button, no reload, the result moves with the input. The math is the standard formula done right, and every band is labeled so the number actually means something.
You watch it happen in the task workspace: the agent scaffolds the project, wires the sliders to the gauge, starts the dev server, and confirms the page renders before handing you a live preview. The code lands on a branch in your repository with a pull request ready.
The first version is a base you steer with plain follow-up messages:
Each follow-up wakes the same repository and the agent continues on its own code.
Do I need to know how to code? No. You describe the calculator; the agent writes it, checks it renders, and ships the code to your repository.
Is my health data sent anywhere? No. The math runs in your app, in your browser. Nothing about your weight or height leaves the page.
Can I add more health metrics? Yes. Ask for BMR, a body-fat estimate, or a metric of your own, and the agent extends the same code.