XSource
claude code and codex are both coding agents, but i use them differently
by sannn ~ (@santiagoo24_) · 2026-07-31
✓ Opened via the X API on 2026-10-15
Read the original ↗Part 1 · What the source did
Use one agent as the builder and the other as a second pair of eyes that hunts bugs and challenges architecture before you accept the result.
- Claude Code explores, plans, builds and handles refactors.
- Codex reviews the changes, looks for edge cases and challenges decisions.
“claude code builds > codex reviews”— sannn ~ (@santiagoo24_), X
Summary written by Agent Cookbook. See the original for the full context.
Part 2 · Our copy-paste version
Adapted by us from what the source described. Fill in the [BRACKETS].
The prompt
(Codex, after Claude Code finishes) Review the diff on this branch against main.
1. Bugs and edge cases, with file:line.
2. Architectural decisions you'd challenge, and the alternative.
3. Anything that looks finished but isn't (TODOs, unhandled errors, missing tests).
Don't edit files. Rank findings by risk.
🛡
Approval ruleThe reviewer is read-only; the builder applies fixes you accept.
Set it up
- Finish the feature in Claude Code and commit.
- Run the review prompt in Codex on the same branch.
- Paste high-risk findings back to Claude Code to fix.
Common failures
⚠
What usually goes wrong
- Reviewer nitpicks bury real issues. Ask it to rank.
- Both agents share the same blind spot when given the same vague spec.
Variations
- Swap roles for bug fixes.
- Add a third agent from a different vendor as tie-breaker.