I’m running a maven proxy locally. All builds happen inside containers. I only use public repos for python, npm, and go. So these builds happen also in containers but don’t need a repository proxy.
I'd suggest both. Cooldown for 1-2 days is very cheap and you likely won't even notice it, so it's quite harmless and from what I've seen even just 24 hours is enough to let security companies pick up malware.
But yeah, isolation is a must-have.
Or as us or companies to wrap the build tools to provide the wrapping for them.
What if it gets compromised?
More of a joke. But was funny after saying that new packages should be delayed.
ALL the agentic orchestrators like codex, claude-code, etc. seem to do this by default.