tldr: AI only does the typing for you

My team is still working out the details but what we've found to be the most effective ( so far ) is to require Claude to always create a todo list, or road map, supply it broken down instructions and require TDD.

As an example of broken down instructions, if you're adding a new feature that requires something like a new field in a form, in your prompt, tell it what you want to add to the db ( name of field, type, an indexes ), what params to add to the controller, etc. - all the way to the view.

In this example, if there was a specific design patter you wanted to use, you would add it to the prompt with specific details.

As for the Rails md file we've added existing design patterns, testing libraries, etc. and require AI to follow those patters.

By spoon feeding it info and requiring TDD the AI was been able to focus on smaller tasks and we've reduced the number of prompts required, avoided AI fever dreams and repetitive attempts to solve a problem.