diff --git a/instructions/tanstack-start-shadcn-tailwind.md b/instructions/tanstack-start-shadcn-tailwind.md
index a44093c..c5a939c 100644
--- a/instructions/tanstack-start-shadcn-tailwind.md
+++ b/instructions/tanstack-start-shadcn-tailwind.md
@@ -1,5 +1,6 @@
 ---
 description: 'Guidelines for building TanStack Start applications'
+applyTo: '**/*.ts, **/*.tsx, **/*.js, **/*.jsx, **/*.css, **/*.scss, **/*.json'
 ---
 
 # TanStack Start with Shadcn/ui Development Guide