CSE498, Collaborative Design, Fall 2025
Computer Science and Engineering
Michigan State University

Health Alliance Plan is a health insurer based in Detroit, Michigan that provides coverage for both individuals and businesses of all sizes. HAP serves over 430,000 members across the state of Michigan. By sponsoring innovative projects, HAP supports the development of tools that make technology more accessible.

Artificial intelligence is a technology sector that is rapidly evolving and is becoming an essential tool in the workplace. However, many users struggle to write effective prompts. Without clear guidance, they risk vague or low-quality results from artificial intelligence systems.

HAP seeks way to improve users’ prompt engineering skills by creating technology that is accessible to anyone.

Our HAP Prompt Yielder (HAPpy) software is an automatic prompt generation tool usable by anyone. By breaking down the components of a strong prompt, our system helps users craft better instructions for large language models like ChatGPT, Claude, Gemini Pro, and more.

The system provides a live, prompt quality scorecard which contains three different categories on how a prompt is evaluated. Based on the user’s role, they can interact with the system in a chat-like manner and receive a final prompt. From there, the user is redirected to a page recommending top large language models. Their outputs are displayed and easily viewable for comparison. Users can give feedback to improve the scoring model, making the tool smarter over time.

Our software speeds up prompt generation, improving productivity and saving time, resulting in happy users.

HAPpy is built with a React and Next.js front end hosted on Vercel, a Python FastAPI back end deployed on Render with a database layer, and Supabase managing PostgreSQL storage for data and user feedback.