st-fallback-journal-is-runtime-only-no-disk-presence
memory/st-fallback-journal.md is referenced in MEMORY.md but intentionally does NOT exist on disk during normal operation. It is created on-demand only when Sequential Thinking MCP is unavailable, used to persist inline-rigor decisions, and deleted when reconciled after ST is restored. A missing file at that path is not drift — it is correct steady state. Clarify this in any MEMORY.md reference to prevent false-positive drift alerts.