Build better AI products with loop engineering

Building an AI feature and unsure what to improve next? This brain helps you move from a small working prototype to useful feedback: check the AI’s behavior, review the result as a developer, and learn whether it solves a real user’s problem. It also explains the AI foundations behind those choices.

• What is a sensible first prototype for my idea?
• Should I improve the prompt, add retrieval, or consider fine-tuning?
• My app runs, but its answers are unreliable. What should I evaluate first?

Start with your goal, your experience level, and one example of what is working or failing. You can work toward a practical next experiment and a way to judge its result.

An independent, unofficial guide based on Andrew Ng’s public teaching and writing, including accounts of prototypes and user feedback. Published examples are distinguished from suggested applications; no affiliation or endorsement is implied.