Authoritative metadata
A metadata server gives the AI a structured view of your legacy estate, so it can quote facts rather than guess at them.
What this layer is
At the base of the methodology sits a metadata server: a single source of truth for the structure of your legacy estate, exposed in a form an AI agent can query before it generates anything.
The methodology treats the metadata layer as non-negotiable: an agent that has not consulted the metadata is not yet ready to act. That single rule eliminates the largest class of failures in AI-assisted modernisation work.
Every other layer reads from this one. Without it, the AI is guessing. With it, the AI is quoting.
Failure mode it prevents
Hallucinated structures, invented field sizes, and the runtime errors that follow when generated code meets reality.
A focused walk through the methodology.
A working session covering all five layers and how they would map to the systems you actually have to modernise.