# Brandon Dent, MD

- **Event:** [Built with Opus 4.7: a Claude Code hackathon](https://cerebralvalley.ai/e/built-with-4-7-hackathon)
- **When:** Apr 21 at 12:00 PM – Apr 27 at 2:00 AM (EDT)
- **Where:** Online
- **Team:** [Brandon Dent](https://cerebralvalley.ai/u/GOATnote)
- **GitHub:** https://github.com/GOATnote-Inc/prism42
- **Demo video:** https://youtu.be/VIGRD6-1k8c
- **Gallery:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/191

Speak into the mic at https://prism42-app.thegoatnote.com/prism42/livekit
 and you reach a real-time 911 voice dispatcher that responds in under 1.5 seconds and walks a full emergency protocol: address verification, complaint-specific triage, and T-CPR pre-arrival instructions.

This project began by stress-testing Claude Opus 4.7 on HealthBench Hard and MedAgentBench, then building a custom evaluation harness to exceed native model behavior—turning a general-purpose LLM into a safety-constrained, real-time clinical decision system.

Prism42 developed out of a need for 911 call centers to have AI assistance during downtime. A deterministic finite-state machine owns every safety-critical decision and template — CPR instructions, repositioning, breathing verification — delivered verbatim.

A parallel Opus 4.7 critic scores intent agreement across a 100-fixture evaluation. Naive LLM dispatchers drift and improvise; Prism42 supervises with an LLM and dispatches with an FSM.

A cloud demo (https://prism42-console.vercel.app/prism42-v3
) uses ElevenLabs + Claude for smooth playback; the full system runs self-hosted on a Brev B300 (https://prism42-app.thegoatnote.com/prism42/livekit ).

Every life-safety path is physician-reviewed and traceable to NHTSA EMD, AHA T-CPR, and NHS Pathways. 83/83 tests pass. MIT licensed.

When most AI systems go silent, Prism42 keeps responding.

---

Markdown version of https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/191. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt