I have a personal writing app that uses the OpenAI models and this post is bang on. One of my learnings related to "Lesson 1: When it comes to prompts, less is more":
I was trying to build an intelligent search feature for my notes and asking ChatGPT to return structured JSON data. For example, I wanted to ask "give me all my notes that mention Haskell in the last 2 years that are marked as draft", and let Chat GPT figure out what to return. This only worked some of the time. Instead, I put my data in a SQLite database, sent ChatGPT the schema, and asked it to write a query to return what I wanted. That has worked much better.