At this point, should cases like this even be news? Isn't that a fundamental security design issue? Local agent security guardrails appear to always be built around blacklists, which will always be unreliable and leaky. It is left as an exercise to the user to properly sandbox them.

There may be some limited form of whitelisting, but often it is just a facade, as it is very coarse-grained. So, with tools with very broad capabilities (ssh, kubectl, gcloud, etc) you end up with the agent performing unwanted actions.