--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_xmllang_check/README.md	Mon Feb 09 18:34:40 2026 -0500
@@ -0,0 +1,13 @@
+# mod_xmllang_check
+
+This module strips invalid `xml:lang` values from S2S outgoing stanzas. This is to avoid issues with ejabberd validating these values.
+
+See notes on ejabberd in `xml-lang-enforcement-findings.md`.
+
+## Configuration
+
+```lua
+modules_enabled = {
+	"xmllang_check";
+}
+```