diff --git a/.config/sanity.d/readme-old-project-status.sh b/.config/sanity.d/readme-old-project-status.sh
new file mode 100644
index 0000000..e0ec904
--- /dev/null
+++ b/.config/sanity.d/readme-old-project-status.sh
@@ -0,0 +1,14 @@
+function sanity_readme_has_old_project_status() {
+	[[ -f README.md ]] || {
+		report debug "No README found, skipping check"
+		return 0
+	}
+
+	grep -q 'd2o84fseuhwkxk.cloudfront.net' README.md || {
+		report success "No old project status found"
+		return 0
+	}
+
+	report error "README contains old project status"
+	return 1
+}