One engine, any Virtual Workspace. The Director walks a lattice of typed atoms joined by typed connections (the 7 verbs in the legend).
Unlike a one-step walker, this Director keeps a trail (its working memory). It never re-takes the edge it just arrived on, it detects a mirror-trap (bouncing in a tiny loop), and it backs out by switching connector type — or jumps to fresh ground if cornered. Watch the HUD bottom-left: that's it thinking.
The walk policy is a versioned contract (vw.walk/1.0.0) shared with a
headless walker that records every walk as a second lattice. Same Director, two endpoints.