Yeah, I’ve seen this happen before. In many cases the phrase isn’t coming from your prompt directly, but from fallback behavior, assistant memory/context, tool preambles, or cached conversation states inside the Vapi flow. If you’re already stripping it at the proxy level and still hearing it, then it’s likely being injected before the response reaches your middleware or through another response path entirely. I can help trace where it’s actually originating from and clean up the flow properly. @David