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.