# Tio Cumbana

- **Event:** [Built with Opus 4.7: a Claude Code hackathon](https://cerebralvalley.ai/e/built-with-4-7-hackathon)
- **When:** Apr 21 at 12:00 PM – Apr 27 at 2:00 AM (EDT)
- **Where:** Online
- **Team:** [Elton Laice](https://cerebralvalley.ai/u/Elton)
- **GitHub:** https://github.com/eltonlaice/tio-cumbana
- **Demo video:** https://www.loom.com/share/4658a6db42994bc39c212d1c2759aea9
- **Gallery:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/218

Tio Cumbana is a digital agronomist for smallholder farmers — 500 million globally, 3.2 million households in Mozambique alone, feeding 2.5 billion people but invisible to agronomy.

Most AI waits to be asked. Tio Cumbana doesn't. A long-running Claude Managed Agent watches each parcel, cross-references the farmer's photos, weather (via an MCP server), phenological stage, and Zimpeto market prices, and decides autonomously when to interrupt — sending a voice note in Portuguese with Changana code-switching. Two farmers asking the same question receive different answers because they are two different people with two different parcels and two different histories.

I am the user. I run a 54-row farm in Maluana with my mother. The nearest agronomist is 40 km away. Today I came back to find a pest destroying our crop. This is the use case.

The same Memory layer also gives supermarkets a live harvest-pipeline view, lowering waste and enabling pre-purchase contracts. One agent, every node of the value chain — only viable now, on Opus 4.7 + Managed Agents, at cents per farmer per day.

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Markdown version of https://cerebralvalley.ai/e/built-with-4-7-hackathon/hackathon/gallery/218. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt