From Agent Skills for WordPress. Copyright (C) 2026 WordPress Contributors, licensed under GPL-2.0-or-later. Changed from upstream: the compatibility: frontmatter line was dropped when this copy was made in March 2026, and license frontmatter plus this notice were added on 2026-10-24. See NOTICE.md.

WP Plugin Development

When to use

Use this skill for plugin work such as:

• creating or refactoring plugin structure (bootstrap, includes, namespaces/classes)
• adding hooks/actions/filters
• activation/deactivation/uninstall behavior and migrations
• adding settings pages / options / admin UI (Settings API)
• security fixes (nonces, capabilities, sanitization/escaping, SQL safety)
• packaging a release (build artifacts, readme, assets)

Inputs required

• Repo root + target plugin(s) (path to plugin main file if known).
• Where this plugin runs: single site vs multisite; WP.com conventions if applicable.
• Target WordPress + PHP versions (affects available APIs and placeholder support in $wpdb->prepare()).