# alloy-agent

- **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:** [JongSeok Lee](https://cerebralvalley.ai/u/leetoto)
- **GitHub:** https://github.com/LEE-ok/alloy-agent
- **Demo video:** https://youtu.be/kuGOBx8772k
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/715

alloy-agent is an AI agent for steel alloy design. You state the properties you need, in plain language or as a spec-sheet PDF or photo. A Muse Spark agent turns them into constraints, searches candidate compositions with an uncertainty-aware predictor, explores the strength-ductility trade-off, and returns ranked candidates with calibrated ±2σ bands and a recommendation of which alloys to test next.

The problem: alloy design is a slow guess-test-repeat loop, and LLMs readily invent plausible-looking numbers. alloy-agent is built so it cannot do that. Every number in the answer must come from a tool output, and a code verifier strips anything it cannot trace. Out-of-domain candidates are flagged, never hidden. When a goal is out of reach under the conservative mu-2σ criterion, the agent says which constraint binds and by how much, then offers the Pareto front instead of inventing an alloy.

Results: 20/20 task success on 20 evaluation queries with both Muse Spark Open (Baseten) and Muse Spark 1.3. The predictor's ±2σ bands cover 95% of held-out steels. Everything was built during the hackathon from an empty repository, on open data (MIT).

Live demo: https://lee-ok--alloy-agent-ui.us-east.modal.run (Modal; the first request after idle takes about 30 s).

## More from Meta Global AI Developer Hackathon

- [Muse Studio Lite](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/712)
- [TechLabID](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/713)
- [Pawception](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/714)
- [Lumina](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/716)
- [Reflow](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/717)
- [Forewarn](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/718)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/715. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt