# The Mentra Glasses Guy

- **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:** [Carl Vincent Kho](https://cerebralvalley.ai/u/Carl_NotANerd)
- **Demo video:** https://youtu.be/xClx55oDZWA
- **Gallery:** https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery/13

Badge Memory is a no-cold-start conference memory agent. Mentra Live glasses capture my real conversations; a checkpointed pipeline (whisper → LLM person cards → 768-d embeddings) lands them in four Atlas collections. Kill the process mid-ingest and it resumes from its Atlas checkpoint. Recall runs Atlas Vector Search and Atlas Search, cites its sources, and logs which strategy actually answered into retrieval_outcomes — future queries reorder their strategy by stored win-rate, so state changes behavior instead of just filling the prompt. Person cards accumulate across meetings ($addToSet), and the agent drafts the follow-ups I promised. Built solo, all inference local (gemma4:12b + nomic), all state in the event sandbox cluster.

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Markdown version of https://cerebralvalley.ai/e/persistent-context-sprint-hackathon/hackathon/gallery/13. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt