Hey Christen J. - Phoenix itself doesn't natively perform red teaming at inference time but Arize does partner with Guardrails for inference time protections (which can be traced and captured in Phoenix or Arize).
It's not a project I'm super familiar with TBH but happy to intro you to the people running it. https://docs.arize.com/arize/llm-monitoring-and-guardrails/guardrails