# LangObs

- **Event:** [Zero to Agent: Vercel x Deepmind Hackathon NYC](https://cerebralvalley.ai/e/zero-to-agent-nyc)
- **When:** Sat, Mar 21 at 9:00 AM – 10:00 PM (EDT)
- **Where:** 220 W 26th St, New York, NY
- **Team:** [Aarya Shah](https://cerebralvalley.ai/u/Arkfelix7), [Harshini Vijayakumar](https://cerebralvalley.ai/u/harsh22)
- **GitHub:** https://github.com/ArkFelix7/langobs
- **Demo video:** https://youtu.be/TdoTQfPnQZk
- **Gallery:** https://cerebralvalley.ai/e/zero-to-agent-nyc/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/zero-to-agent-nyc/hackathon/gallery/55

LangObs is a collaborative observability platform for multi-agent AI systems —
Loom for what your agent did, Figma comments for what your team thinks about it,
and a budget alarm for what it cost.

You describe a task in plain English. Gemini 2.5 Pro generates a typed multi-agent
workflow graph. The Vercel AI SDK 6 runner executes each agent and streams every
token, tool call, cost, and guardrail event into Supabase as a structured span in
real time. The result is a shareable, commentable, voice-narrated session replay
that any teammate can open in a browser — no SDK changes, no vendor lock-in, no
proprietary collector required.

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Markdown version of https://cerebralvalley.ai/e/zero-to-agent-nyc/hackathon/gallery/55. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt