[MAC] Update Claude/Codex plugins and skills

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

AGENTS.md

@@ -33,5 +33,5 @@ Practical rule: **edit the `.example` source, not the generated symlink target.*
 
 ## Maintenance
 
-- `./update_mac.sh` — macOS update runner. Default (no args) runs `--brew-update --cleanup --diagnostics --update-others`; other flags: `--system-update`, `--permission-fix` (strips Caskroom/App quarantine xattrs). Run `./update_mac.sh --help` for the list. `--update-others` also updates Alacritty from its verified upstream release and antidote plugins (not updated at shell start), tmux plugins (TPM) and nvim plugins (vim-plug, headless), cleaning plugins no longer in the config, then runs `claude --update`, `codex update`, and `pi update` (incl. extensions) when installed.
+- `./update_mac.sh` — macOS update runner. Default (no args) runs `--brew-update --cleanup --diagnostics --update-others`; other flags: `--system-update`, `--permission-fix` (strips Caskroom/App quarantine xattrs). Run `./update_mac.sh --help` for the list. `--update-others` also updates Alacritty from its verified upstream release and antidote plugins (not updated at shell start), tmux plugins (TPM) and nvim plugins (vim-plug, headless), cleaning plugins no longer in the config, then runs `claude --update` (+ marketplaces and user-scope plugins), `codex update` (+ Git plugin marketplaces), and `pi update` (incl. extensions) when installed, plus `skills update --global` (brew `skills`) for skills in `~/.agents/skills`. MCP servers need nothing: they're remote or launched via `npx …@latest`.
 - `brew_autoupdate` — runs scheduled brew and Alacritty auto-updates.