# Fault Line

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Brock Strehle](https://cerebralvalley.ai/u/BrockDawg)
- **GitHub:** https://github.com/BrockDawg/faultline
- **Demo video:** https://youtu.be/TXLqlfvc9AM
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3076

Faultline takes video and structured event data and turns it into rule-based rulings. It's designed for scenarios where you review footage and check it against a rulebook. Good examples include forklift safety rules in a warehouse, the rules of a sim-racing league, airport tarmac safety rules, or monitoring safe use of press machines.

A rules pack defines what you're looking at. For forklift footage it's deterministic code measuring position, motion, zones and proximity. For racing the adapter takes the driver's protest and combines it with the simulator's event data and replay. Faultline then links the result to the rule, relevant people or vehicles, the review window and the evidence. It can state it can't rule if the required evidence is missing. Adapters can then be built around Faultline to add new domains.

The live demo starts with a forklift case. In the test set, we correctly identified 12 of 14 breach clips and found 0 false breaches in the 10 compliant clips. Those are the actual measured results from that set, not a statement of general accuracy. Racing is an experimental adapter with known limitations. Faultline is set up so each domain has its own rules pack with a common record/replay format.

## More from Meta Global AI Developer Hackathon

- [Sahil](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3073)
- [Elsewhere by Roszhan](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3074)
- [Team TUQO](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3075)
- [AXIOMH](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3077)
- [Ayé](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3078)
- [Osee11](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3079)

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