This is the best AI coding setup ever: Codex 5.2 xhigh on the left, Claude Code Opus 4.5 on the right 1. Start building with Claude Code in plan mode 2. Copy and paste every plan into Codex. Validate the plan. If they have any critical feedback, give it back to CC 3. Any time CC messes up, go back to Codex and have it fix the issue 4. Every change either agent makes, ask the other agent to review it 5. Primarily use whichever agent that is the last one to clean up the other's mess Not only…