diff --git "a/claudetool/onstart/testdata/caf\303\251.js" "b/claudetool/onstart/testdata/caf\303\251.js"
new file mode 100644
index 0000000..6cd53e3
--- /dev/null
+++ "b/claudetool/onstart/testdata/caf\303\251.js"
@@ -0,0 +1,2 @@
+// JavaScript file with French accent in filename
+console.log('Hello from café.js');