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JP's avatar

The CLAUDE.md as onboarding doc point is spot on. I have been doing something similar with AGENTS.md in Codex CLI - same concept, different filename.

I have been running both Claude Code and Codex in parallel and the patterns are remarkably similar. The approval workflows, the instruction files, even the slash commands. I wrote up the patterns that work across both tools: https://reading.sh/the-definitive-guide-to-codex-cli-from-first-install-to-production-workflows-a9f1e7c887ab

One thing I have found different is how they handle test iteration. Codex's Rust rewrite made the test-run-fix loop noticeably faster on my machine. Both get to the same place but the feedback speed matters more than I expected.

Also second the point about not starting with code. The best sessions I have had with both tools started with exploration and ended with implementation.

Wolfgang's avatar

The link to the rules files seems to require authorization 😅 I wanted to take a look but I can't access them 🙈

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