You'll notice
New message tells the model not to repeat content stopped by a safety classifier, except for already-running tool calls
What
A new piece of text is shown when a response is stopped by a safety classifier (an automated system that flags unsafe content), explicitly telling the model not to reproduce that content. An exception is carved out for tool calls that were already running when the stop happened; those are instead marked as "Interrupted."
Why
This prevents the model from retrying or repeating content that was blocked for safety reasons, while still letting already-in-flight tool calls end cleanly rather than being treated as if they repeated the blocked content.