I use Claude Code, primarily writing web applications and JavaScript. I'll have it use various frameworks. It's built apps for me using React, Ember, Astro, etc. I don't restrict myself to frameworks I'm particularly familiar with, since it's easy for the AI to teach me the basics whenever I would like to dig in.

As for specific practices, these are my main ones:

- I have a gotchas-log.md file that acts as a log of gotchas likely to trip up future runs. I have the AI write to this occasionally when things go haywire in the same way multiple times. And I have it read it as part of its iterative reviews, described below.

- I have a good-code-guidelines.md file where I write my preferences for code. I have the AI read this as part of iterative reviews, described below.

- I have a plan-and-execute.md file that prompts the LLM to make a plan, and then to review and iterate on that plan repeatedly (while reading gotchas-log.md and good-code-guidelines.md) until its reviews stop finding issues. I tag this file to implement almost every non-trivial change.

- I have other various helper prompts. For example, I can simply tag @make-a-git-commit.md and it tells the LLM to make a commit and write the message the way I like it. I have @simplify.md, which I can tag to have the LLM explain whatever it just did to me using simple language that makes it easier for me to understand, and using concentric circles of explanation that go from broad to specific so I'll repeatedly encounter important topics; this makes it much more bearable for me to read its responses.

- Occasionally, whenever a particular system of my codebase starts to get hairy, I spawn a Claude Code session to read through and trace all the relevant code paths, then write a short guide to that system in a markdown file that lives in the codebase. IT's useful for me to read and also useful to tag for future prompts to get the LLM up to speed quickly. Only challenge here is that these guides go stale and require updating, so it's important to prompt the AI to write them at the appropriate level (not to specific) that prevents them from being overly brittle and getting out of date with every little change. They're mostly high-level guides.