Notes on data, graphs and the questions in between.

Nobody sets out to maintain forty dashboards. They arrive one urgent question at a time.

Not a database, not an index, and definitely not a vector store on its own.

Row-level permissions, read-only credentials and a hard rule about training data.

Active users, and the four incompatible versions of it living in one company.

Naming conventions, undeclared keys and the folklore that never made it into a doc.

Where does the data go, whose permissions apply, and what happens when it is wrong.