diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6313b56
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+* text=auto eol=lf
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95477c1..6cba697 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 - **Temporary resources** (`mapbox://temp/...`) are now scoped to the account that created them: a read by a different account returns the standard not-found response. Token resolution mirrors the tools (request auth, then the env token for stdio/single-user), so local reads are unaffected. Adds regression tests.
 
+### Dependencies
+
+- **Normalize line endings to LF**: Added `.gitattributes` (`* text=auto eol=lf`) and `"endOfLine": "lf"` to the Prettier config so Windows contributors no longer hit CRLF/Prettier failures when running `npm run lint`.
+
 ## 0.12.2-dev - 2026-06-10
 
 ### Security
diff --git a/package.json b/package.json
index 7c67c1b..feee27d 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,8 @@
   },
   "prettier": {
     "singleQuote": true,
-    "trailingComma": "none"
+    "trailingComma": "none",
+    "endOfLine": "lf"
   },
   "engines": {
     "node": ">=22"