[MAC] Update Claude/Codex plugins and skills

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

update_mac.sh

@@ -66,11 +66,28 @@ function update_others {
     if [ -x "$(command -v claude)" ]; then
         echo "-- CLAUDE"
         claude --update
+        echo "-- CLAUDE PLUGINS"
+        claude plugin marketplace update
+        # No pipe into the loop: update must keep the terminal as stdin for its
+        # confirm prompt (bun's kqueue rejects a `< /dev/tty` redirect)
+        plugins=$(claude plugin list --json \
+            | python3 -c 'import json, sys; print(*(p["id"] for p in json.load(sys.stdin) if p["scope"] == "user"))')
+        for plugin in $plugins; do
+            claude plugin update --scope user "$plugin"
+        done
     fi
 
     if [ -x "$(command -v codex)" ]; then
         echo "-- CODEX"
         codex update
+        echo "-- CODEX PLUGINS"
+        codex plugin marketplace upgrade
+    fi
+
+    # Skills installed via the skills CLI (shared by Claude, Codex, ...)
+    if [ -f "$HOME/.agents/.skill-lock.json" ] && [ -x "$(command -v skills)" ]; then
+        echo "-- SKILLS"
+        skills update --global --yes
     fi
 
     if [ -x "$(command -v pi)" ]; then