diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..c351b35
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+# Generated references are compared byte-for-byte with the Rust renderer.
+# Keep their checkout representation stable even with core.autocrlf=true.
+skills/vibeshell/references/*.md text eol=lf
+.claude/skills/vibeshell/references/*.md text eol=lf
+.codex/skills/vibeshell/references/*.md text eol=lf
diff --git a/src-tauri/src/ssh_import/putty.rs b/src-tauri/src/ssh_import/putty.rs
index 1b767ba..41d862d 100644
--- a/src-tauri/src/ssh_import/putty.rs
+++ b/src-tauri/src/ssh_import/putty.rs
@@ -275,16 +275,20 @@ fn read_text_file(path: &Path) -> Result<String> {
     let bytes = fs::read(path).with_context(|| format!("Failed to read {}", path.display()))?;
     if bytes.starts_with(&[0xff, 0xfe]) {
         let units: Vec<u16> = bytes[2..]
-            .chunks_exact(2)
-            .map(|chunk| u16::from_le_bytes([chunk[0], chunk[1]]))
+            .as_chunks::<2>()
+            .0
+            .iter()
+            .map(|chunk| u16::from_le_bytes(*chunk))
             .collect();
         return String::from_utf16(&units)
             .with_context(|| format!("Invalid UTF-16 text in {}", path.display()));
     }
     if bytes.starts_with(&[0xfe, 0xff]) {
         let units: Vec<u16> = bytes[2..]
-            .chunks_exact(2)
-            .map(|chunk| u16::from_be_bytes([chunk[0], chunk[1]]))
+            .as_chunks::<2>()
+            .0
+            .iter()
+            .map(|chunk| u16::from_be_bytes(*chunk))
             .collect();
         return String::from_utf16(&units)
             .with_context(|| format!("Invalid UTF-16 text in {}", path.display()));