Graph engineering came to life this week. For a year the agent discourse has been loops vs graphs. Loops are easy to ship and impossible to audit. Graphs are auditable but nobody wants to hand-author a topology for "investigate this incident", because the shape is only discovered while working. So I built the missing piece: the graph is authored by a model at runtime, and a deterministic admission gate stands between proposing it and running it. The flow, from a real run in the ...