Are there public examples of "good instruction" and an iteration process? I have tried and have not been very successful at getting Claude Code to generate correct code for medium sized projects or features.

I had Claude write a piano webapp (https://webpiano.jcurcioconsulting.com) as a "let's see how this thing works" project. I was pleasantly surprised by the ease of it.

I actually just put together a write up showing my prompts and explaining what was generated after each, if you're interested at all https://jcurcioconsulting.com/posts/how-i-used-claude-code-t...

Anthropic has a short training course https://www.coursera.org/learn/claude-code-in-action. There isn't really a lot of best practices at this point because the technology has improved significantly in 2025.