diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..d6cc9715
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,6 @@
+# Mark code-generated files from butcher tool as generated
+.butcher/**/*.json linguist-generated=true
+# .butcher/**/*.yml linguist-generated=true
+
+# These files are auto-generated and should be collapsed in PRs
+# .butcher/ linguist-generated=true