Comment by digital_ghoul

I’m not sure if this will work for you (with Claude), but I was trying to get luna to get a handle on verbosity and the only thing that worked was setting a strict < 500 words response (or less) unless expressly given permission to do otherwise. This is the only thing that worked, any other request for conciseness, or requesting the omission of details from the periphery of the topic at hand, didn’t do a single thing.

I also have no idea how useful a system prompt instruction like this will be for codex.