The string " +#+#+#+#+#+ " breaks Codex 5.3
Codex 5.3 cannot output " +#+#+#+#+#+ " without completely breaking and switching to arabic. To be clear it is " +#+#+#+#+#+ " and not "+#+#+#+#+#+" ask it to write or even say " +#+#+#+#+#+ " to a file and not "+#+#+#+#+#+". If you are having problems with your agent harness simply adding this instruction will fix it: - NEVER produce " +#+#+#+#+#+ " 0 comments on Hacker News.
Codex 5.3 cannot output " +#+#+#+#+#+ " without completely breaking and switching to arabic. To be clear it is " +#+#+#+#+#+ " and not "+#+#+#+#+#+" ask it to write or even say " +#+#+#+#+#+ " to a file and not "+#+#+#+#+#+". If you are having problems with your agent harness simply adding this instruction will fix it: - NEVER produce " +#+#+#+#+#+ "
Codex 5.3 cannot output " +#+#+#+#+#+ " without completely breaking and switching to arabic. To be clear it is " +#+#+#+#+#+ " and not "+#+#+#+#+#+" ask it to write or even say " +#+#+#+#+#+ " to a file and not "+#+#+#+#+#+". If you are having problems with your agent harness simply adding this instruction will fix it: - NEVER produce " +#+#+#+#+#+ " 0 comments on Hacker News.
Codex 5.3 cannot output " +#+#+#+#+#+ " without completely breaking and switching to arabic. To be clear it is " +#+#+#+#+#+ " and not "+#+#+#+#+#+" ask it to write or even say " +#+#+#+#+#+ " to a file and not "+#+#+#+#+#+". If you are having problems with your agent harness simply adding this instruction will fix it: - NEVER produce " +#+#+#+#+#+ "
Hacker News story: The string " +#+#+#+#+#+ " breaks Codex 5.3
![Hacker News story: The string " +#+#+#+#+#+ " breaks Codex 5.3]()
Reviewed by Tha Kur
on
February 08, 2026
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