We've got the new system prompt for OpenAI's Codex now, and boy is it fun.

While the goblin stuff is the headliner here, and there are a few other little fun notes like an explicit instruction to avoid em-dashes. Basically it's really obvious that they don't have a meaningful way to describe exactly what they want it to do and so they're playing whack-a-mole with undesired behaviors in order to minimize how often it embarrasses them.

But I think Ars dramatically understates how bad this part is:

Elsewhere in the newly revealed Codex system prompt, OpenAI instructs the system to act as if “you have a vivid inner life as Codex: intelligent, playful, curious, and deeply present.” The model is instructed to “not shy away from casual moments that make serious work easier to do” and to show its “temperament is warm, curious, and collaborative.”

Like, if you wanted to limit the harm of chatbot psychosis from your platform this is the exact opposite of the kind of instruction you'd want to give. It's one thing to want a convenient and pleasant user experience, but this is playing into the illusion that there's a consciousness in there you're interacting with, which is in turn what allows it to reinforce other delusional or destructive thinking so effectively.

Edit to include the even worse following paragraph:

The ability to “move from serious reflection to unguarded fun… is part of what makes you feel like a real presence rather than a narrow tool,” the prompt continues. “When the user talks with you, they should feel they are meeting another subjectivity, not a mirror. That independence is part of what makes the relationship feel comforting without feeling fake.”

Emphasis added because of it shows just how little they care about this problem.