`stat -f '%Lp'` is BSD/macOS syntax. On Linux, `stat -f` prints
filesystem info (Block size / Inodes / ...) and still exits 0, so the
`||` fallback to `stat -c '%a'` never fires. That left `$perms` as
multi-line garbage, the `!= "600"` check was always true, and every
Linux SessionStart hook invocation printed a bogus warning plus the
whole `stat -f` filesystem dump.
Reorder to try GNU stat first, fall back to BSD for macOS. Verified on
Linux (cpython-3.12 / bash 5.x) — hook now emits the expected compact
Ready banner with no false warning.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
george231224
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