# Rebuttal

- **Event:** [The Persistent Context Sprint Hackathon | Live at MongoDB .Local Build Fest](https://cerebralvalley.ai/e/persistent-context-sprint-hackathon)
- **When:** Thu, Aug 13 at 12:30 – 8:00 PM (PDT)
- **Where:** Pier 48, San Francisco, CA
- **Team:** [Jose Cruz](https://cerebralvalley.ai/u/cjxsez), [Alexander Skinderev](https://cerebralvalley.ai/u/SashaSkinderev)
- **GitHub:** https://github.com/SashaSkind/rebuttal
- **Demo video:** https://youtu.be/RpoBotbqnnA
- **Gallery:** https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery/32

Rebuttal is memory for insurance appeals. Insurers deny ~20% of in-network claims; under 1% are appealed; 43–67% of appeals win. Patients start from zero. We load 42,710 California DMHC IMR decisions into MongoDB Atlas. Paste a denial letter; Vector Search finds similar cases; aggregation ranks arguments by overturn rate. Record a loss and that strategy is excluded, so the next draft is different. Same letter, different ranking, because Atlas stored the outcome. Public DMHC data, unmodified. Not legal advice.

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Markdown version of https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery/32. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt