The previous round widened path_manifest from the exec bit to full permission
bits, and that made check-plugin-content-sync fail at pre-push on a pristine
tree. hooks/hooks.json is not copied from the bundle -- sync_hooks_json writes
it with printf, i.e. at the runtime umask -- while the real side comes from the
checkout. On a umask-002 clone the two disagree, 664 vs 644, and no commit can
reconcile them because git tracks no non-exec mode.
The rule adopted: record a mode for a path this pipeline copies, never for one
it writes. A copied path's mode traces to the same checkout on both sides, so
comparing it means something; a written path's mode is the writer's umask on
one side and the checkout's on the other, which are independent. That is the
same rationale the directory exclusion already carried -- what broke was the
premise that files are immune. Normalising instead was rejected: pinning the
generated side cannot fix a checked-out side that is already 664.
The unconditional chmod 644 in reinject_mcp_servers goes for the same reason;
writing through the destination inode already closed the original 0600 bug.
The mode coverage added for the two plugin.json manifests is removed rather
than documented, because it measured nothing on any axis. In check mode the
expected side is a cp -a of the real plugin root, so apm rewrites an existing
inode and inherits its mode; and a symlinked manifest is copied as a symlink
and written straight through, so both sides agreed no matter what. That
symlink case is a real hazard -- the re-injection corrupts the link's target --
so it is now asserted directly instead.
Also: an unparseable or non-object per-plugin plugin.json killed the manifest
walk mid-loop; the source-less-entry guard closed only source: null and let
every other malformed value through; the select it backstops was extracted so
a test can exercise it independently, which nothing could before; and two more
`|| pwd` fallbacks now hard-error -- with a decoy marketplace.json in $PWD,
--all derived its plugin list from it.
Tests: 63 -> 77 and 23 -> 31 assertions.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X7GvKuJfy2WrdBmUttV4DT
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