What it is
HeatCompass is a personal heat-safety system. It tells you — in real time, by location — how dangerous the heat actually is (the wet-bulb globe temperature and the matching safety flag) and plans your hydration backwards from when your day ends. It’s in active development, shipping as a web and mobile app with offline, on-device coaching, alongside an enterprise console edition at heatcompass.com.
Open the console → www.heatcompass.com
How it works
- WBGT, not just temperature — every reading maps to a heat-safety flag (e.g. White Flag — normal conditions) and a concrete instruction (“White + light work — 16 oz this hour”), the same risk language used in athletics and the military
- Backwards-planned hydration — tell it what you’re doing today and it plans your intake back from when the activity ends, not as a generic daily target
- Offline, on-device coaching — the rule-based “what to do now” guidance runs without a connection; the mobile app adds on-device AI coaching, full offline use, and “Bathroom Sentry”
- Consumer + enterprise — the web/mobile app for individuals, plus an enterprise console edition for organizations managing heat risk across people and sites
Why it matters
Climate is making heat a year-round hazard for a growing number of people. Putting a real risk metric (WBGT) and an offline-capable coach in everyone’s pocket — and a console in front of the organizations responsible for crews and athletes — is one of the most direct ways to put a safety system where it’s actually needed.
Where it led — the heat thread
HeatCompass is where my work on heat started. When the Google I/O hackathon ran a “heat effects” brief, I wanted to enter with it — but HeatCompass as it stood didn’t fit a weekend build, so I started fresh. That sparked Heat Threshold, a Gemini multi-agent heat-safety dashboard (the wrong thing, but a great showcase of Gemini’s Managed Agents), which in turn led to Heat Protein Lab, the molecular-science take I actually wanted. Three angles on the same question — what heat does, and how to stay ahead of it — from your pocket, a route, and a protein.