Supercharge your engineering velocity by using Claude Opus 4.6 to rapidly build features and then leveraging GPT-5.3 Codex to perform a rigorous, principal-level code review for production hardening.
with Claire Vo
Once Opus 4.6 has produced a functional first draft, copy the relevant code that you want reviewed and hardened for production.
Switch to the Codex desktop app. Frame your request as a formal code review, asking it to act as a principal engineer and scrutinize the architecture, performance, and scalability of the code written by Opus.
I've redesigned tool usage in this index. It's gone through several rounds of feedback. Can you review the architecture and performance and see if you have any feedback we should consider before shipping. We're looking for something scalable, but customizable and we don't wanna overfit in any direction.Carefully review the feedback from GPT-5.3 Codex. It excels at finding high-impact issues, edge cases, and architectural flaws. It will often prioritize the issues for you.
After discussing the feedback with Codex and asking any clarifying questions, give it the green light to implement the fixes. This hardens the code, making it production-ready to be merged and shipped.
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