diff --git a/03-DESIGN/01-to-be/55-the-knowledge-base.md b/03-DESIGN/01-to-be/55-the-knowledge-base.md
index abf36df7..1c179cf5 100644
--- a/03-DESIGN/01-to-be/55-the-knowledge-base.md
+++ b/03-DESIGN/01-to-be/55-the-knowledge-base.md
@@ -1,7 +1,7 @@
 ---
 layer: to-be
 status: in-progress
-code: [mesh-catalog]
+code: [mesh-catalog, hq]
 updated: 2026-10-18
 decisions:
   - "ADR 0290"