# Tether

- **Event:** [Intelligence at Work Hackathon](https://cerebralvalley.ai/e/intelligence-at-work-hackathon)
- **When:** Fri, Oct 23 at 8:30 AM – 8:00 PM (PDT)
- **Where:** Menlo Park, CA
- **Team:** [Faiz Francis](https://cerebralvalley.ai/u/FFrancis), [Alex Yang](https://cerebralvalley.ai/u/aumenza)
- **GitHub:** https://github.com/kaze-ai-yhz/tether
- **Demo video:** https://youtu.be/vWSPbjpfDJs
- **Gallery:** https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/14

Tether turns a missed follow-up into a phone call instead of a hospital bed.

Chronic disease is managed at home, and almost no one is checking in. A primary care doctor would need 26.7 hours a day to deliver all recommended care, so follow-up calls are the first thing to go, and 3.5 million adult hospital stays a year are potentially preventable.

Tether keeps patients with hypertension, COPD and type 2 diabetes tethered to their care plan. It does the follow-up a practice cannot staff, and hands the clinician only the decisions. It watches home readings, labs and refills in Snowflake, applies guideline rules (2025 AHA/ACC, GOLD 2026, ADA 2026) plus the doctor's signed AI Plan from the visit note, and uses Claude through Cortex to draft the next step: a patient check-in, an AI follow-up call, or a request to the prescriber or pharmacy. Missed check-ins climb a follow-up ladder, and red flags go straight to the top of the queue. A clinician approves every outbound action in one click. Tether does not diagnose and does not choose drugs or doses.

Built on Snowflake (a SQL rules engine, role-separated approval, Cortex AI_COMPLETE with Claude, and a Cortex Agent over a semantic view for plain-language questions). All data is synthetic.

## More from Intelligence at Work Hackathon

- [Data Detective](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/11)
- [Data Contract Governance Agent](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/12)
- [Open Loops](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/13)
- [Wayfinder](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/15)
- [Daisy](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/16)
- [Blast Radius](https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/17)

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Markdown version of https://cerebralvalley.ai/e/intelligence-at-work-hackathon/hackathon/gallery/14. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt