XSource
Codex did it again
by Sujee (@sujee) · 2026-01-28
✓ Opened via the X API on 2026-10-15
Read the original ↗Part 1 · What the source did
When one agent loops on a bug for hours, hand it to a different agent; this developer settled on Claude Code for features and Codex for bug fixes and review.
- Saw Codex fix a SwiftUI bug Claude Code had struggled with for hours.
- Adopted a split: features in Claude Code, bug fixes and review in Codex.
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
Fresh eyes: another agent has tried to fix this for a while without success.
Bug: [SYMPTOM]. Repro: [STEPS]. What was tried: [SUMMARY OF ATTEMPTS].
Don't repeat those approaches. State 3 different hypotheses, test the cheapest first, and show evidence before changing code.
🛡
Approval ruleRevert the stuck agent's partial edits before the second agent starts.
Set it up
- Set a rule: after 30 minutes of looping, switch agents.
- Summarize what was tried (the stuck agent can write it).
- Paste into the other agent.
Common failures
⚠
What usually goes wrong
- Passing along a wrong diagnosis biases the second agent; list attempts, not conclusions.
Variations
- Ask both for hypotheses in parallel and compare.