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Codex code review run from Claude Code to find critical issues

March 28, 2026David Marcus, Garry Tan

David Marcus claims Codex reviews triggered from Claude Code consistently surface serious problems, and Garry Tan describes firing “/codex adversarial reviews” for CEO/design/eng feedback loops inside Claude Code.

“It's wild that every time you run a Codex code review from Claude Code, it finds critical issues.”
“Not 95% of the times, 100%.”
“My /codex and /codex adversarial reviews can fire for CEO, design and eng reviews and they sharpen thinking significantly when using Claude Code as your primary agent”
It's wild that every time you run a Codex code review from Claude Code, it finds critical issues.
Not 95% of the times, 100%.
My /codex and /codex adversarial reviews can fire for CEO, design and eng reviews and they sharpen thinking significantly when using Claude Code as your primary agent
David Marcus
Garry Tan
codexcode reviewworkflowcodexclaude codecoding agentssoftware engineering

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