# Club Coop

- **Event:** [OpenAI GPT-5 Startup Hackathon](https://cerebralvalley.ai/e/gpt5)
- **When:** Aug 9 at 10:00 AM – Aug 10 at 5:00 PM (PDT)
- **Where:** Location TBA
- **Team:** [Matt R](https://cerebralvalley.ai/u/matthew), [Cait Hammack](https://cerebralvalley.ai/u/caith75)
- **GitHub:** https://github.com/caithammack/cooperr
- **Demo video:** https://www.loom.com/share/5b9709200bf74a218f2cf64fbafa0f29?sid=5734cab3-5f91-427e-adc2-564e3a497e17
- **Gallery:** https://cerebralvalley.ai/e/gpt5/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/gpt5/hackathon/gallery/77

Club Coop is a grocery deal & discount agent for consumers. Our assistant Cooper scans weekly circulars/public discount sources from nearby retailers & generates a personalized savings report based on user preferences (brands, items, stores.)

What we built:
Onboarding & preferences. We used ChatGPT 5 to overhaul the onboarding flow and wire it to our backend so user preferences are captured and stored reliably.


The Cooper agent. We used ChatGPT 5 to create Cooper, which interprets your preferences and queries local deal data to assemble a customized report of best prices and discounts in your area.


Data & storage. All database connections are handled with code we generated and integrated via ChatGPT 5, using Supabase as our primary datastore for users, preferences, deal snapshots, and weekly reports.

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Markdown version of https://cerebralvalley.ai/e/gpt5/hackathon/gallery/77. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt