At RSAC, there were a ton of agentic security startups converging on ebpf monitors for this reason. Eg, sondera gave a fun talk at graph the planet where they did that + exposed with a policy layer over agent traces via Cedar (used in AWS IAM etc). ABAC and identity were also appearing near here.

One thing I didn't see: are there any OSS solutions appearing here?

We are Open Source… code will be published soon (before launch)

Then you will be open source ;) Not yet open source.

Yes, true ;)