Makes sense. I think supporting it by version is overkill.
OPCUA companion spec is the way to go and it's really mapping the path correctly.
Section 8.3 describes the mapping naming convention. Implementation of our relay component follows this convention. The code interfaces MTConnect Agent and TimescaleDB. ladder99/services/relay/src at main · Ladder99/ladder99 · GitHub
@Kevin.Herron The Agent meetings are every other Friday morning. Open to all and a helpful bunch.
Yeah I've read through it at this point.
Building an XML stream parser seems like the solution, but once I realized that, and how much work it would be to map it according to the companion spec, this went from from "fun weekend hack" where I could have an OPC UA server showing a value by now, to extremely tedious chore 
lol