Phase 2 of to-be 45 met questions its paragraphs do not answer: a strict
node-engine refuses an unknown key, a lease bucket can be raised again from
nothing, a command at a shell sends declarations too, and the bus's grant
is composed by the controller that needs it. The answers, the wire contract
and the withdrawal brake go into to-be 45 with issue 270's Phase 1
decisions; issue 272 records that the SDK's provider loop says nothing on
the bus.