# Agent Andy

- **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:** [Tony Jagodka](https://cerebralvalley.ai/u/DrVelvetFog)
- **GitHub:** https://github.com/DrVelvetFog/agent-andy
- **Demo video:** https://www.youtube.com/watch?v=jH7AXl9KXJo
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/815

Agent Andy is an agent that checks a local rule before you act, and proves its answer.

The problem: agents act first and explain later. For a question like "Can I detect at Myrtle Beach?", a confident wrong answer is not just unhelpful, it can lead to a fine. I run wheretodetect.org, a metal-detecting spot-rules site, so this is a real failure mode I care about.

Andy answers only with a cited verdict, or it stages instead of answering. It checks the rule first, then shows its work: every action leaves a hash-chained, signed receipt, and verification names the exact receipt if one byte is changed. A staged answer is not a refusal, it is the honest state when the evidence is not there.

Verified results, all built Oct 26 to Nov 4, 2026: 16/16 hostile inputs blocked or staged, 12/12 attacks caught, 8/8 legitimate requests allowed, and a 33-receipt recorded live chain that anyone can verify without installing anything at https://drvelvetfog.github.io/agent-andy/

The demo shows Myrtle Beach answered ALLOWED with a cited source, Tybee Island staged as UNVERIFIED when no primary rule was found, and a Witness packing check (book, cable, charger) that ships only if every item is seen in a photo.

Plummy and aee-e2 inspired Andy and are not part of this submission. Andy is a solo entry: Tony Jagodka, Director, with Cosmo (Muse) as Build Manager and Claude (Claude Code) as Builder.

## More from Meta Global AI Developer Hackathon

- [AdiSaan - TBWIM](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/812)
- [Dealmatch](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/813)
- [StateShift](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/814)
- [Tcpcore- Cptlight](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/816)
- [AgentGuardRequestGuard](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/817)
- [Foad Team](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/818)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/815. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt