R2 adversarial review surfaced 3 issues, all addressed:
#1 cli/client.py:572-577 outer try/except wrapped both _get_shared_client()
AND the actual download. A 401/403/404/5xx from the server triggered a
full second download attempt with a fresh client — wasted bandwidth on
hard failures, no fail-fast on revoked PAT. Narrowed the try to only
the shared-client construction; the download itself is no longer
retried under the fallback except.
#2 concurrent agnes pull invocations (e.g. SessionStart hook + manual
run) collided on bare <target>.tmp / <target>.partN paths — one process's
in-progress write got yanked by the other's cleanup, manifest hash
check then failed spuriously. Per-process suffix (<target>.{pid}.tmp,
<target>.{pid}.partN) makes intermediate files disjoint; the final
os.replace to the bare target is atomic so last-writer-wins.
#3 _looks_like_bq_rewrite_parse_error patterns 'Syntax error' could
false-positive on a query like WHERE log_msg = 'Syntax error in foo'
that fails for an unrelated reason (quota, network) and has the
literal substring echoed in the error text. Anchored to 'Syntax error: '
(with trailing colon) — BQ always emits the colon in this error
format, user SQL string literals normally don't.