Sitting a plugin out after a fetch failure left the recorded stamp stale on
purpose, so every launch resynced, and the spawned-process guard in
prepare_launch raised "dependency sync left this install out of date".
One retry covers a blip; after that the plugin is disabled with the reason,
and hermes plugins enable restores it. Only requires_hermes still sits out,
which boot skips the same way.
An update disabled any plugin that failed a trial build or its
requires_hermes check. Both can be about us, not the plugin: an untagged
source checkout reads as an older release (#122054), so requires_hermes
misjudges a fine plugin, and a download failure says nothing about the
plugin's code. Those now sit the plugin out of the build: config stays
untouched and it rejoins once the cause clears.
Disabling still happens on evidence about the plugin: requires-python vs
the pinned interpreter, manifest_version, an invalid declaration, a uv
resolution conflict, or its own build backend failing (new BuildFailure,
keyed on uv's 'The build backend returned an error').
enabled_member_dirs now skips a requires_hermes misfit instead of
raising. Boot's currency check raised on it before any sync could run, so
the launch path never reached the update sync. The loader skips such a
plugin anyway; admission still refuses enabling one.
Venv.apply refused the whole graph when any secondary profile's
config.yaml was unreadable, so one broken sibling config failed every
update. Update syncs now leave that profile's plugins out of the union,
report it (stderr + receipt warning), and build the rest; the profile's
plugins rejoin on the next sync once its config is fixed. Boot currency
already skips broken secondaries, so the result reads as current.
Ordinary syncs keep refusing to shrink the recorded graph.
An update resolves the enabled plugin union against the NEW core. A plugin
admitted against the old core can stop fitting when core moves (managed
Python 3.13 -> 3.14 vs a member's requires-python <3.14, a requires_hermes
upper bound, a bumped pin), and the whole update then died after the
source swap with a non-resolver InstallError whose 'retry' hint failed the
same way every time.
Update syncs now pass evict_incompatible_plugins=True (update completion,
historical takeover, launch-time completion, venv_sync, post-update
drift). PM screens statically first (requires-python vs the target
interpreter, manifest/requires_hermes), then, if the rest still fails,
builds core alone to prove the plugins are the cause and re-adds members
in config order, disabling each one that breaks the build. Misfits land in
plugins.disabled (memory.provider cleared) in every home that enables
them, published through the existing journaled change hook (the journal
now carries several configs), and are reported on stderr + receipt
warnings. Admission and ordinary syncs still refuse; only a core that
cannot build on its own fails an update.
