How do all these pieces stay in agreement with each other?

In assembled architectures each component maintains its own view of classification and entitlement, and the views drift. Keeping them synchronized becomes an ongoing engineering obligation, and the moment they diverge is the moment an access rule stops being enforced somewhere.

In Centralpoint a record's classification, audience assignment, taxonomy position and version history are set once during ingestion and read by everything downstream — embedding, retrieval scoping, skill loading, metering and logging. There is no synchronization step because there is no second copy of the governance state.