Trust me, I love FDB, but that's not the same thing. The FDB team IIRC had to write their own programming language to do this. It's not a agnostic layer above the application.
The problem with coupled tooling is that no one will use it. That's what is cool about antithesis. If they're able to complete their goal, that's basically what will be achieved.
Fiar point. I was thinking about antithesis, but it's not open source (yet?). Turns out I also didn't read your comment well enough. Back to lurking I go.
I guess you meant to say "only the people working on the software coupled to the tooling will use it". It's not just FDB & Amazon that are using something like this, and it is a ridiculously powerful type of tool for debugging distributed systems.