Heat Threshold

Heat Threshold answers one question: should I go outside, and when? You type (or speak) a location, an activity, and a time. A primary Gemini 3.5 Flash agent dispatches a graph of ten sub-agents — three uploaded as persistent Managed Agent definitions, one weather cascade (NWS → Open- Meteo), and six deterministic sub-agents for routing, sun-shade math, refuge scheduling, and Street View. It returns a go / delay / alternate verdict grounded in Stull (2011) wet-bulb math and USMC 6200.1E flag thresholds. Same plan, three surfaces: a 2D bento dashboard, a playable WebXR HUD over Google Photorealistic 3D Tiles, and a Gemini Live voice mode that calls our Managed Agents pipeline as a tool — bridging the two newest Gemini APIs through function calling. Every run is traced by PlatAtlas, recorded to Vercel Blob by McpTape, and replayable via McpReplay (?replay=<runId>) — the demo safety net. Built today, 10:30 AM – 5:00 PM PT. MIT. Environmental scheduling tool, not medical advice.