diff --git a/bin/is-tmux-attached b/bin/is-tmux-attached
new file mode 100755
index 00000000..44114018
--- /dev/null
+++ b/bin/is-tmux-attached
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+[[ $(tmux display-message -p "#{?session_attached,1,0}") == "1" ]]