The right way to do this is Google Jules: the boundary is a git repository, the interface is a chat window you can open anywhere (yes, even simultaneously), the output is a diff you can choose to merge.

But, for whatever reason, no one uses Google Jules.

I don't want my phone to have the ability to execute things on my computer. Much less with a LLM in-between!

because you can't rely on anything from them same for Antigravity, feels abandoned

only surprising product that feels non google for me is Google Stitch https://stitch.withgoogle.com/

Google might shut it down soon.

Yes, and there are two entirely unrelated reasons for that:

1. It appears no one's using it.

2. Google.

It makes me sad though. This is how I want agents to work!