The overview
One screen that says where the product stands, and links you to where the detail lives.
A strategist wants one screen that says where the product stands. The overview is that screen, and it is where a project opens.
It shows per-platform delivery gauges, the release pulse, the backlog, the inventory of what exists, platform parity and a quality grade. Each card links into the surface that owns the detail: the maps, the board, the changelog, the library.
No card computes its own numbers. Every one is a straight reading of the graph and its journal, so the overview can never drift from the maps it summarizes.
It is read-only on purpose: you get the global picture one screen deep, then jump somewhere else to act. And every number on it is something an agent can ask for too.