Juan Manuel Fraga
The health system today gets paid when you get sick.
Core trick
Reads lab PDFs, prescription labels, and smartwatch screens as images, and updates a persistent health-state document after each conversation.
Description
The health system today gets paid when you get sick. Hospitals, visits, and pharmacies all run on the engine of illness.
Nobody is paid to keep you well.
I built Health Companion because, sitting at fifty, watching my parents age, I realized the product I needed didn't exist. It
is a wellness companion whose only job is to keep people well, in the language they actually speak. Powered by Opus 4.7 —
extended thinking exposed as an opt-in clinical audit layer any user can open, multimodal reading of lab reports,
prescription labels, and smartwatch screens with no OCR in between, and a living state document that compounds with every
conversation. It never diagnoses, never prescribes, always refers. A practicing physician — me — authors and reviews every
clinical string.
Where care is scarce, the value rises: someone without a family doctor now has a digital one. Especially in places like
México. Most health products live around the visit. This one lives between visits — in the years when nothing is happening
yet, the years that decide everything.
Built in five nights with Opus 4.7 and a coordinated team of Claude Code subagents. Open source, Apache 2.0.
Demo: https://health-companion-five.vercel.app/?demo=1
jmfraga/health-companion★ 00 forksTypeScriptNOASSERTIONCreated Apr 21, 2026 · last push Jun 30, 2026
README excerpt
# Health Companion > Your personal health companion — preventive, personalized, proactive. A wellness companion that helps anyone stay healthier over time, adapted to their history, habits, and age. Built on the idea that the best health tool is the one that knows you — like a family doctor who's seen you for ten years, available to everyone. ## Status **Last updated:** 2026-04-28 — hackathon judging closed; this repository is archived as the submission snapshot. Submission to the **Built with Opus 4.7** hackathon (April 21–26, 2026). The hackathon is closed. The hosted demo URLs that ran during judging have been retired. To explore the product, run it locally — see [Run locally](#run-locally) below. What was working at submission: cold-open chat with welcome card and example chips · streaming Opus 4.7 with visible tool-use animation · live profile panel · screening calendar with guideline citations · opt-in "See reasoning" disclosure · multimodal lab ingestion (PDF or photo) · "3 months later" simulation with the proactive letter · `/trends` longitudinal chart view (with one-click demo-arc seeder) · `/bridge` clinician-side preview (Phase-2 vision, not functional) · `/privacy` · `/how-this-works` · persistent emergency affordance with region-specific numbers. The roadmap — sprints already shipped, what's left before the Sunday submit, and Phase 1 onward — lives in [`ROADMAP.md`](./ROADMAP.md). Not production-ready. Not a medical device. Does not provide medical advic