Assistant and system prompt?

Is there a way to add system prompt in the Assistant API call like we add in the regular call with role: system, because I’ve tried, but it show me that there is only 2 valid roles assistant and user.

I’ve worked plenty with Assistant and I treated the “Instruction” as System Prompt while creating the Assistant. It’s true that there is no direct way of passing the system prompt but you work what you get.

You can also use the “additional_instructions” on a per-run basis if you want to modulate the behavior of an Assistant in the context of a specific Run.