[Oarch]

Just tried this in Opus 5:

"Looks like your message came through empty, just a dash. What did you want to ask?"

[Insanity]

I couldn’t replicate it either. Not sure if the user who discovered it, accidentally did this in an environment with “memory” like an OpenClaw.

[toastau]

To the API, without any instructions / user settable "system" prompt?

[minraws]

You can use pi and empty out context and system prompt for it that I think should be a fair comparison too.