diff --git a/.cnb.yml b/.cnb.yml
index 00085ec2f..773c4c0bf 100644
--- a/.cnb.yml
+++ b/.cnb.yml
@@ -2,6 +2,9 @@ $:
   vscode:
     - runner:
         cpus: 2
+      stages:
+        - name: ls
+          script: ls -al
 
 main:
   push: