There's a beautiful build going around: wire your ring, your labs and your food log into an AI, and fire your longevity coach. It's right — you should build it. But a coach reading data you already own is orientation, not medicine. It can recommend the CGM. It can't make it pre-tax. That step needs a licensed human's name on it.
Connect the sources you already own to an AI agent and ask for a weekly read. For sleep, HRV, macros and trend-spotting, this genuinely replaces the expensive part of a concierge clinic — reading data back to you. We'd never tell you not to build it. We build things like it too.
Your coach says you'd benefit from the CGM, the standing desk, the therapy, the sauna. Good advice. Now try to make any of it pre-tax. Here's where the DIY stack stops — and it isn't a bug you can patch.
An AI recommendation is an opinion. A Letter of Medical Necessity is a legal document under IRS §213(d) — and only a licensed physician can write one. No prompt turns "you'd benefit from this" into eligible spend. The model can draft the letter; it cannot be the signature.
Un-attested advice is a citation, not accountability. The moment it matters — a plan administrator, an audit, a real clinical fork — someone has to have stood behind it. "The AI said so" is not a defense. A physician's attestation is. AI drafts; a human is accountable.
The coach is getting cheap because reading your data got cheap — and cheaper still as it moves on-device. So the scarce thing isn't the read. It's the licensed human standing behind the plan: the one dependency you can't self-host.
You already connected your card, your labs, your Apple Health. AgenticHSA is designed to plug into the exact same sources — and add the one thing an AI agent can't: a licensed physician who reviews each letter and signs or declines it. You approve before a dollar moves. None of this is live yet; here is the design.
We're not competing with your AI coach. We're building the step after it.
If you were comfortable piping Plaid, your labs and your Apple Health into an agent, you already did the hard part — and you self-selected into exactly who this is for: a builder with cash, no HR department, and a stack of "wellness" purchases that should be pre-tax.
The DIY stack tells you what to fix. A physician's signature is what documents it, when a letter is warranted; what that saves depends on your tax bracket. AgenticHSA isn't live yet. Ask about a spend scan and we'll follow up by email on what may already qualify. Nothing is charged here.
Early access is open. AgenticHSA isn't live yet: join the list and we'll email you when it opens. Nothing is charged to join.
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