diff --git a/.husky/commit-msg b/.husky/commit-msg
index d19d816..960d544 100644
--- a/.husky/commit-msg
+++ b/.husky/commit-msg
@@ -13,9 +13,9 @@ case "$first_line" in
   "Merge "*|"Revert "*) exit 0 ;;
 esac
 
-if ! printf '%s' "$first_line" | grep -qE '^(feat|fix|docs|refactor|chore|test|style|ci|perf|build)(\([a-z0-9 -]+\))?: .{1,}$'; then
+if ! printf '%s' "$first_line" | grep -qE '^(feat|fix|docs|refactor|chore|test|style|ci|perf|build|revert)(\([a-z0-9 -]+\))?: .{1,}$'; then
   echo "commit-msg: subject must be '<type>: <subject>' (lowercase type)." >&2
-  echo "  types: feat fix docs refactor chore test style ci perf build" >&2
+  echo "  types: feat fix docs refactor chore test style ci perf build revert" >&2
   echo "  got:   $first_line" >&2
   exit 1
 fi
diff --git a/scripts/audit-ui.mjs b/scripts/audit-ui.mjs
index 7ad9681..9d61d49 100644
--- a/scripts/audit-ui.mjs
+++ b/scripts/audit-ui.mjs
@@ -23,11 +23,6 @@ const shared = read('chapters.css');
 const skills = read('skills/styles.css');
 const guide = read('full-guide/index.html');
 const guideAudit = read('full-guide/audit.css');
-const css = ['styles.css', 'chapters.css', 'skills/styles.css', 'full-guide/audit.css'];
-for (const file of css) {
-  if (/@import|src:\s*url\(['\"]?https?:|url\(['\"]?https?:/i.test(read(file)))
-    throw new Error(`${file} has an external CSS dependency`);
-}
 for (const token of ['@media(max-width:800px)', '@media(max-width:520px)'])
   if (!shared.includes(token)) throw new Error(`shared chapter CSS lacks ${token}`);
 for (const token of [