Be careful about what you hand off to Claude versus another agent. Claude is a vibe project monster, but it will fail at hard things, come up with fake solutions, and then lie to you about them. To the point that it'll add random sleeps and do pointless work to cover up the fact that it's reward hacking. It's also very messy.

For brownfield work, work on hard stuff or work in big complex codebases you'll save yourself a lot of pain if you use Codex instead of CC.