manage_wp_site

Get a WordPress site's status or run a site-wide maintenance action over WP-CLI. action=status (needs only read:hosting) returns status {version, updateAvailable, latestVersion, home, siteUrl, theme, plugins: {active, inactive, updates}, pages, posts, permalinkStructure, phpVersion}. The writes require write:hosting and return {changed, message} in WP-CLI's own words: update_core (WordPress itself, then its database), update_plugins and update_themes (all of them — one plugin is manage_wp_plugins, one theme manage_wp_themes), flush_cache (object cache and transients; the LiteSpeed page cache is purge_litespeed_cache), flush_rewrites (fixes permalink 404s), verify_checksums (compares the core files with WordPress.org), reinstall_core (re-downloads the same WordPress version's core files over the site after verify_checksums reports modified or missing files, or after a malware clean-up — keeps wp-content and wp-config.php, same language; answers {version, locale, checksumsVerified}). set_custom_css (css, ≤ 80 KB) replaces the customizer's Additional css — use it to give a built site a real design: fonts via @import, colours, spacing, a hero layout, responsive rules; the classes and ids you reference must exist in the block html you wrote with manage_wp_content.