The global block runs before the per-project link and the commit, but its
mkdir and link failures returned 1 outright. Global memory is optional and
frequently absent, so a stray file or a permission problem at
~/.claude/memory would abort the per-project memory backup and its commit
for every project, on every agent launch -- a fault in the secondary
feature killing the primary one.
Both failures now warn to stderr and continue, matching the treatment the
agy copy already had; the whole global block is best-effort by design.
Continuing is safe because _agents_repo_ensure_symlink validates and
refuses before mutating anything. $changed is set only when the link
actually succeeded, and nothing is recorded that would make a later run
believe the global memory is linked when it is not.
The live-side test widens from -d to -e so a stray regular file where the
global memory directory belongs is reported on every run instead of being
silently skipped and mistaken for the absent-by-default case.
Also documents that the agy knowledge copy is merge-only: a fact deleted
upstream persists in the vault and a restore brings it back. Whether the
vault should mirror deletions is a retention decision for the repo owner;
the gap is worth stating either way.