diff --git a/README.md b/README.md
index 71715eb..75bb232 100644
--- a/README.md
+++ b/README.md
@@ -77,6 +77,11 @@ master-knowledge-genome/              ← Root orchestrator (submodule registry)
 └── AGENTS.md                         ← Global coordination schema (cross-genome rules)
 ```
 
+> The genome names above (`genome-dev`, `genome-finance`, `genome-homelab`) are
+> **illustrative** — they show the kind of multi-domain layout this orchestrator targets.
+> The shipped `registry.sh` defines a single disposable sandbox, **`genome-test`**; you
+> create real genomes yourself with `make add-genome` (see the registry examples below).
+
 Each genome is an independent git repository:
 
 ```text