diff --git a/JOURNAL.md b/JOURNAL.md
index 3e667a6..2d996e8 100644
--- a/JOURNAL.md
+++ b/JOURNAL.md
@@ -43,7 +43,9 @@
 - **Final Track**: Initialized 'architecture_boundary_hardening_20260302' to fix the GUI HITL bypass allowing direct AST mutations, patch token bloat in `mma_exec.py`, and implement cascading blockers in `dag_engine.py`.
 - **Testing Consolidation**: Initialized 'testing_consolidation_20260302' track to standardize simulation testing workflows around the pytest `live_gui` fixture and eliminate redundant `subprocess.Popen` wrappers.
 - **Dependency Order**: Added an explicit 'Track Dependency Order' execution guide to `TASKS.md` to ensure safe progression through the accumulated tech debt.
+- **Documentation**: Added guide_meta_boundary.md to explicitly clarify the difference between the Application's strict-HITL environment and the autonomous Meta-Tooling environment, helping future Tiers avoid feature bleed.
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+