diff --git a/setup b/setup
index 51be8f13a..3758ad1a6 100755
--- a/setup
+++ b/setup
@@ -1053,7 +1053,7 @@ create_opencode_runtime_root() {
     rm -rf "$opencode_gstack"
   fi
 
-  mkdir -p "$opencode_gstack" "$opencode_gstack/browse" "$opencode_gstack/design" "$opencode_gstack/gstack-upgrade" "$opencode_gstack/review" "$opencode_gstack/qa" "$opencode_gstack/plan-devex-review"
+  mkdir -p "$opencode_gstack" "$opencode_gstack/browse" "$opencode_gstack/design" "$opencode_gstack/gstack-upgrade" "$opencode_gstack/lib" "$opencode_gstack/review" "$opencode_gstack/qa" "$opencode_gstack/plan-devex-review"
 
   if [ -f "$opencode_dir/gstack/SKILL.md" ]; then
     _link_or_copy "$opencode_dir/gstack/SKILL.md" "$opencode_gstack/SKILL.md"