HarnessHealthStart a pilot
A friendly amendment to the DIY longevity stack

Fire your $15k coach. Don’t fire the doctor.

The DIY guides going around are right about almost everything: connect your ring, your food log, and your labs to Claude, and skip the concierge markup. Do it. We use the same connectors.

They’re wrong about one thing — and it’s the one that matters. The moment your AI interprets a lab, that’s a clinical act with no doctor and no privacy. Here’s the same build, with the one layer it skips.

The one line it crosses

“Here’s what your labs mean and what to ask your doctor” is not a wellness tip. It’s a clinical interpretation.

When a model reads your panel and tells you what’s wrong, a clinical act just happened — with no licensed physician, no NPI attached, and nobody accountable if it’s wrong. And to do it, you handed your full bloodwork to a general AI that never signed an agreement to protect it.

You may be the only one in that conversation who thinks it’s private — and the only one who thinks a doctor was involved. Who owns the conversation? →

The same build, one layer added

Keep every connector the DIY guide gives you. We only change what happens the moment it turns clinical.

Your ring & watch
DIY stack

Claude reads your sleep, HRV, and recovery. Great — keep this exactly as the guides describe.

With the harness

No change needed. This is wellness data; on-device or in your own chat is fine. The harness doesn’t touch what doesn’t need touching.

See the on-device layer →
Your food log
DIY stack

Claude reads your macros and trends. Also fine — nutrition tracking is not a clinical act.

With the harness

Still fine. The line hasn’t been crossed yet. Convenience layer, no doctor required.

Why wellness data is safe to keep →
Your blood workwhere the line is crossed
DIY stack

You paste a lab PDF and Claude flags what’s out of range and “what to ask your doctor.” This is where the guide goes quiet: a model just interpreted a clinical result, with no licensed physician and no NPI on it — and your full panel just went to a cloud AI with no BAA.

With the harness

The governed version (not live yet): a licensed physician reviews the interpretation before you read it, NPI-bound and auditable, with the PHI handled where it is safe. Today you can check any AI summary against your original at the Fidelity Gate.

Check an AI summary today →
Your weekly review
DIY stack

Claude summarizes the week and names one change. Genuinely useful — automate it.

With the harness

Automate it too. But when the review touches a medication, a symptom, or a flagged marker, that branch routes to a physician instead of a chatbot. Wellness stays instant; medicine gets a name behind it.

Why the line matters →

Keep your own build. Add the doctor.

Same connectors, same speed, same skipped $15k. Plus a physician on anything clinical, and your data where it belongs — with you. Where this stands today: the attestation engine is a working demonstration and the physician directory is live; a patient lab-review product is not live yet.