deferred-queue-writer-is-utility-not-hook

deferred-queue-writer.py at /root/.claude/hooks/ is a shared utility library consumed by other hooks (e.g., omnigraph-auto-upload), not a standalone hook itself. It should not appear in the hooks inventory in MEMORY.md. Distinguish between hook scripts (registered in settings.json) and utility libraries (imported by hooks) to avoid false undocumented-hook alerts.