diff --git a/.changeset/odd-planes-know.md b/.changeset/odd-planes-know.md
new file mode 100644
index 000000000..3ca5d82a7
--- /dev/null
+++ b/.changeset/odd-planes-know.md
@@ -0,0 +1,6 @@
+---
+"grafast": patch
+---
+
+Improve debugging message when new steps are created at a time when doing so is
+forbidden.