I can see this being useful if only for the fact I can search all my conversations with my 50 different agents on different providers easier. I spend so much time looking through my cc/codex session or the desktop app or Hermes agent or antigravity session (back when I used that). Hopefully having a layer above will abstract that away.
If I understand it correctly the meta harness will help me scan across all sessions and not have to drop into individual ones.
I think companies are slowly starting to realize that setting up machine learning at scale isn't as simple as deploying poorly written code by research scientists to managed platforms.