Claude Code Personal Rules

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Since December 2025, I've been fully into jj (see [Working with jujutsu]).

Claude Code defaults to git and doesn't seem to have a good grasp of using jj as a tool.

We've recently brought Claude Code back into reviewing PRs now that Opus 4.5 is effectively a mid-level engineer.

While looking at the docs, I learned about User-level Rules.

I had no idea about this despite using Claude Code daily for 6 months.

More to come on my usage of Claude Code, but in the meantime, a friend shared his use of Claude Code which is pretty similar to mine.