# Interlock: Aditi Kumari, Austin Zhao, Arnav Sacheti, Shun-Hsun Liang.

- **Event:** [The Harness Engineering & Model Wrangling Hackathon](https://cerebralvalley.ai/e/mongodb-nyc-hackathon)
- **When:** Sat, Sep 26 at 9:00 AM – 10:00 PM (EDT)
- **Where:** New York, NY
- **Team:** [Austin Zhao](https://cerebralvalley.ai/u/austinzhao), [Shun-Hsun Liang](https://cerebralvalley.ai/u/Hannibal_Liang), [Aditi Kumari](https://cerebralvalley.ai/u/KRIaditi), [Arnav Sacheti](https://cerebralvalley.ai/u/arnavsacheti)
- **GitHub:** https://github.com/asacheti/mongodb-hackathon
- **Demo video:** https://youtu.be/Yi0isi4nyLU
- **Gallery:** https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/51

Two companies, two private playbooks, one signed joint procedure. Neither side reads the other's. Interlock merges them on MongoDB Atlas: Vector Search aligns the steps, deterministic code checks the join, people are asked only where a rule can't decide, and both sign a certificate. Each company gets back its own slice with the partner as one sealed box. A refused handoff triggers self-repair through a change stream. When a rule changes, $graphLookup over the derivation index rebuilds only what was built from it.

## More from The Harness Engineering & Model Wrangling Hackathon

- [3pt (Three Point Harness)](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/48)
- [Ripple](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/49)
- [Relay](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/50)
- [AI Lobang](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/52)
- [MF Goalkeeper](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/53)
- [Alter](https://cerebralvalley.ai/e/mongodb-nyc-hackathon/hackathon/gallery/54)

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