Under a module's own record (its manifest's, or its irreplaceable data's), every
move waited for a person's push, even one that only changed a tools bundle: the
database server stayed behind on ace on 2026-10-15 although its walk said it
recreated none of its containers. ADR 0377 lets such a move roll out.
A move is judged per machine against the build that machine was last sent: it
goes when no container, mounted file, data path, data declaration, provider or
(for a module with data) long-running process changes. A person's record, the
bus and any move that cannot be judged still wait. The walk keeps per machine
which way each recorded module went and why, says it in its note and log, and
status names a machine behind with `push <node>` only for a move that waits.
A build that reported applied was sent everywhere; one that then did nothing, served
no tools or broke its machine's word reached every machine. Now the first machine is
judged by the component's health (the core's definitions, as doctor probes H-*, or a
module's own) three times over two minutes within ten; a failing gate puts the previous
build back there once, marks the build, and says it as a condition and an event.
Upgrades roll out by default; the bus is a planned step; a module deleted at its
source is not built (the public-acme plan failure).
A named push flushed every other machine whose declaration differed from
what it was last sent (hq ADR 0083). Under an upgrade policy of `record`,
or a plan still waiting on its first machine (ADR 0218), every machine
running the module differs, so `push <one>` sent the held build to all of
them (hq issue 259).
Each send now records which build of each module it carried
(node.sent_builds, migration 0061). The cascade, and the bus holder added
to a named push, skip a machine any of whose modules would move to a
build its policy records or an open plan has not sent it, and say which
module, which build, why, and that `push <node>` sends it. A machine
whose last send was not recorded is held until it is named. The named
machine itself, a whole-mesh push and `push --behind` are unchanged.
jochen