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 " +#+#+#+#+#+ "

8 points | by kachapopopow 1 day ago

3 comments

mrdependable 1 day ago
Curious what you were doing that led to this discovery.
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- kachapopopow 20 hours ago
  https://github.com/can1357/oh-my-pi, looks like prompting to do anything before a tool call makes it break.
andyjohnson0 1 day ago
Some kind of stop symbol used in training, perhaps?
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- kachapopopow 20 hours ago
  no it's their internal tool call syntax it is usually followed by assistant and then the toolcall but it's just broken.
masonercy 8 hours ago
something that simple can break it?!