Control plane playground
Three patterns from the reference architecture, as small toys you can poke: a release that ships only when every gate suite is green, a memory governor that keeps an 8 GB host alive, and a kill switch that only the owner can undo.
1 · Release gate
Click a suite to make it fail. One red suite stops the release (ADR-003).
2 · Memory governor
8 GB host, 2 GB reserved for the system (an invented figure). Non-urgent jobs wait if they would leave less than the free-memory floor.