The agent module asks the seat's current which licence it holds and its key,
then the vault's get for that licence's access secret sealed to its own key:
at its start, on a binding.changed with a newer generation than it applied,
and on the vault's secret-changed for the licence it holds. The applied
binding keeps the licence's key, so the vault's event is matched by the
carried key, never one formed here.
Builds: design 39 bus-and-switch §19, §18, B7, B9, B11
Claude-Session: https://claude.ai/code/session_01NcbgfHb9d4T9nq5Q6WqdiJ
jschoubben
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