Speaking of filtering trustworthy URLs, Google is the best option to do that because he has more historical data in search business.

Hope google can do something for preventing prompt injection for AI community.

Maybe if they incorporated this into their Safe Browsing service that could be useful. Otherwise I'm not sure what they're going to do about it. It's not like they can quickly push out updates to Antigravity users, so being able to identify issues in real time isn't useful without users being able to action that data in real time.

I don't think Google get an advantage here, because anyone can spin up a brand new malicious URL on an existing or fresh domain any time they want to.