AI · RAG · Coffee Sensory Evaluation
The Espresso Protocol
AI-assisted sensory evaluation with a RAG-powered chatbot.
Full Stack Developer2024app.tep.coffee
Overview
The Espresso Protocol is an AI-assisted sensory evaluation platform for specialty coffee. I built a Retrieval-Augmented Generation (RAG) system from scratch on OpenAI — a chatbot that retrieves data from the database, answers user questions, and produces structured summaries of evaluation results — backed by a scalable Hono service and delivered to both web and mobile.
What I built
- RAG chatbot built from scratch on OpenAI
- Custom prompt engineering for grounded answers
- Structured summaries of sensory evaluations
- Hono backend (MVC) with Prisma ORM on Azure SQL
- Cross-platform React Native (Expo) app