diff --git a/.gitattributes b/.gitattributes
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+# Enforce LF line endings repo-wide. Commands here run on Linux; commits originate on
+# Windows (Git Bash / GitHub Desktop). Git stores text as LF and checks out LF on every
+# platform, preventing CRLF drift from Windows-side edits.
+* text=auto eol=lf
+
+# Shell scripts MUST be LF -- a CRLF shebang or command line breaks execution.
+*.sh text eol=lf
+*.py text eol=lf