Bridging the Gap Between
Human Intent and AI Output
A free educational project to help people get more out of AI by being clearer about what they're asking for.
About the founder
Hi, I'm Marty Ytreberg — a physics professor and the person behind Prompt Foundry. I built this as an educational project, not a product. There's no premium tier, no account to create, and nothing to buy — it's simply free to use.
Why I built this
Both with my students and in my own early use of AI, I kept seeing the same pattern: someone types in a vague request like "explain entropy" or "write a marketing plan," gets a generic answer, and concludes that AI isn't very good yet.
AI is capable, but it needs explicit, structured instructions. The gap isn't in the technology — it's in how we talk to it. It's the same trap a beginning physics student falls into when they try to do a calculation without first writing down what they know, what they want, and what units they're working in.
So I codified the structure I was already teaching by hand. Prompt Foundry walks you through five frameworks — CRAFT, RISE, CO-STAR, CARE, and TAG — and assembles a finished prompt from what you type into each slot.
The mission
Prompt engineering isn't a niche technical skill. Like writing or basic math, it's a way of structuring your thinking — and it can be taught with clear principles and worked examples. That's what Prompt Foundry is for.