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Health & Body

The highest-stakes room, and the one that makes minimal disclosure vivid.

What is it?​

Allergies and restrictions, conditions and medications, fitness history, sleep patterns, injuries, measurements, what your body responds to and what it doesn't. The context that the most consequential services need a piece of, and that the wrong holder can hurt you with most.

Why store it?​

Health context is scattered across more silos than any other category: one portal per provider, one app per wearable, memory for the rest. Gathered in your castle, it works for you: a meal service that never has to be reminded about the allergy, a trainer agent that knows the old injury, a doctor visit where you hand over the relevant history in one page instead of reconstructing it in an exam room under time pressure.

What does a service legitimately need?​

The narrowest sliver in the whole taxonomy. The meal planner needs your allergies. It does not need your diagnosis history. The fitness app needs the injury that limits the movement, never the medication list. The sleep coach needs the sleep data, nothing upstream of it. If any category proves that excellent service runs on slivers, it's this one: the allergy line alone makes the meal service excellent, and everything else you could have shared was pure downside.

What never leaves home?​

Diagnoses, medications, mental-health history, reproductive matters, genetics. Anything an insurer, employer, or data broker could ever price you with. Health slivers should be shared as facts a job needs ("no shellfish", "knee can't do impact") rather than as records that explain the facts. The records stay in the castle; where they shade into the tender, they belong in the keep.

Further Reading​