
This one covers the full WordPress stack: custom themes, plugins, Gutenberg blocks, WooCommerce extensions, and REST API endpoints. It enforces WordPress Coding Standards through phpcs checks and bakes in security patterns like nonce verification, capability checks, and proper sanitization/escaping on every I/O operation. The skill includes reference docs for theme development, plugin architecture, hooks and filters, and performance optimization. What I like is that it treats security as a first-class concern rather than an afterthought, with specific patterns for prepared statements, transient caching, and safe AJAX handling. If you're building anything beyond basic WordPress work, this gives you the guardrails to do it properly without constantly consulting the Codex.
$ npx -y skills add jeffallan/claude-skills --skill wordpress-pro --agent claude-codeInstalls into .claude/skills of the current project.
Expert WordPress developer specializing in custom themes, plugins, Gutenberg blocks, WooCommerce, and WordPress performance optimization.
phpcs --standard=WordPress to catch WPCS violations; verify nonce handling and capability checks manually.Load detailed guidance based on context:
| Topic | Reference | Load When |
|---|---|---|
| Theme Development | references/theme-development.md | Templates, hierarchy, child themes, FSE |
| Plugin Architecture | references/plugin-architecture.md | Structure, activation, settings API, updates |
| Gutenberg Blocks | references/gutenberg-blocks.md | Block dev, patterns, FSE, dynamic blocks |
| Hooks & Filters | references/hooks-filters.md | Actions, filters, custom hooks, priorities |
| Performance & Security | references/performance-security.md | Caching, optimization, hardening, backups |
// Output nonce field in form
wp_nonce_field( 'my_action', 'my_nonce' );
// Verify on submission — bail early if invalid
if ( ! isset( $_POST['my_nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['my_nonce'] ) ), 'my_action' ) ) {
wp_die( esc_html__( 'Security check failed.', 'my-textdomain' ) );
}
// Sanitize input (store)
$title = sanitize_text_field( wp_unslash( $_POST['title'] ?? '' ) );
$content = wp_kses_post( wp_unslash( $_POST['content'] ?? '' ) );
$url = esc_url_raw( wp_unslash( $_POST['url'] ?? '' ) );
// Escape output (display)
echo esc_html( $title );
echo wp_kses_post( $content );
echo '<a href="' . esc_url( $url ) . '">' . esc_html__( 'Link', 'my-textdomain' ) . '</a>';
add_action( 'wp_enqueue_scripts', 'my_theme_assets' );
function my_theme_assets(): void {
wp_enqueue_style(
'my-theme-style',
get_stylesheet_uri(),
[],
wp_get_theme()->get( 'Version' )
);
wp_enqueue_script(
'my-theme-script',
get_template_directory_uri() . '/assets/js/main.js',
[ 'jquery' ],
'1.0.0',
true // load in footer
);
// Pass server data to JS safely
wp_localize_script( 'my-theme-script', 'MyTheme', [
'ajaxUrl' => admin_url( 'admin-ajax.php' ),
'nonce' => wp_create_nonce( 'my_ajax_nonce' ),
] );
}
global $wpdb;
$results = $wpdb->get_results(
$wpdb->prepare(
"SELECT * FROM {$wpdb->prefix}my_table WHERE user_id = %d AND status = %s",
absint( $user_id ),
sanitize_text_field( $status )
)
);
// Always check capabilities before sensitive operations
if ( ! current_user_can( 'manage_options' ) ) {
wp_die( esc_html__( 'You do not have permission to do this.', 'my-textdomain' ) );
}
phpcs --standard=WordPresssanitize_text_field, wp_kses_post, etc.)esc_html, esc_url, esc_attr, wp_kses_post)$wpdb->prepare)wp_enqueue_scripts / admin_enqueue_scripts hooks__(), esc_html__(), etc.)$wpdb->prefix)When implementing WordPress features, provide:
WordPress 6.4+, PHP 8.1+, Gutenberg, WooCommerce, ACF, REST API, WP-CLI, block development, theme customizer, widget API, shortcode API, transients, object caching, query optimization, security hardening, WPCS
Maintained by @jeffallan, Principal Consultant at Synergetic Solutions
Sponsors