# SpatialSentry

- **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:** [Yash Raj Choudhary](https://cerebralvalley.ai/u/YashRajChoudhary)
- **GitHub:** https://github.com/YashRaj1240/spatialsentry
- **Demo video:** https://drive.google.com/file/d/1G1gPY7SGrBfabRbbwX7H5L77_iml23oK/view?usp=sharing
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2872

SpatialSentry is the world’s first 24/7 ephemeral AI smartphone bodyguard and spatial memory sentinel, designed to give users ambient peace of mind without compromising their privacy.

The Problems It Solves:
Misplaced Everyday Essentials: Humans waste over 15 minutes daily looking for keys, chargers, earbuds, wallets, and mice. Existing Bluetooth trackers require buying and remembering to tag every single object.
Silent Pickpocketing & Snatch Theft: In cafes and transit, thieves silently slide phones out of pockets or bags without making a sound. Loud alarms cause panic and let thieves sprint away.
The Privacy Dilemma: Users refuse continuous camera surveillance because traditional systems stream and store private bedroom and office footage onto cloud servers.
How SpatialSentry Works:
Continuous Relational Perception: When Camera Guard is active, on-device neural vision automatically identifies items in view and records their real-time spatial relationships relative to surfaces and landmarks (e.g., "mouse on desk beside laptop", "keys on counter beside mug").
Zero-Surveillance Ephemeral RAM Purge: Raw visual frames are held in a rolling 10-second RAM buffer and systematically destroyed every 10 seconds. Only structured text knowledge graph coordinates are preserved. Visual privacy is 100% guaranteed.
TARA Conversational Voice Sentinel: Powered by Meta Muse AI, TARA is a hands-free conversational agent following a strict 6-state goal completion machine (FIND OBJECT -> SHARE LOCATION -> OFFER FURTHER HELP -> PROCESS USER RESPONSE -> CLOSE OR CONTINUE). She answers clearly, asks if you need anything else, and gracefully closes with zero awkward silence.
The Dark-to-Light Silent Thief Trap: Instead of annoying sirens, users choose a pleasant sound they love (water drop, velvet chime, marimba, or pop sparkle). Every time the phone is taken from dark (pocket/bag) into light, this pleasant sound plays. The user becomes conditioned to it. If a silent pickpocket extracts the phone, the sound plays naturally. The thief thinks it's harmless, but the owner instantly notices because their hands are empty—catching the thief red-handed in the act!
Forensic Audit Vault: If an unauthorized grab occurs, Meta SAM 3.1 segments the intercepted valuable and locks a verifiable forensic timestamped report.

## More from Meta Global AI Developer Hackathon

- [London Pipeline](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2869)
- [Témoin](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2870)
- [Quietlog](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2871)
- [Lunes](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2873)
- [Md Rubayet Islam](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2874)
- [tablefortwo](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2875)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2872. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt