[leonmoonen]

This seems to be a wrapper around LangAgents that can be linked to iMessage. I would not say the agents "live in iMessage," rather that they interface through iMesssage.

You can find a bit more on what's (likely) behind this in the github repo: https://github.com/photon-hq/flux

(NB: the deployed version may not be exactly the same as the code in the repo)