ACF Custom Field Type Builder
Builds, registers, and audits custom Advanced Custom Fields types using the robust acf_field PHP extension API.
The ACF Custom Field Type Builder skill guides developers through creating and auditing custom field types for Advanced Custom Fields Free and PRO using the official acf_field extension API. It provides structured best practices for lifecycle registration, dynamic input naming in nested Repeaters and Flexible Content, data sanitization, custom validation, and REST API visibility. Ideal when built-in ACF controls cannot represent your stored data contract or editor UI, this skill ensures fields persist correctly, format safely with HTML escaping, and maintain leak-free JavaScript lifecycles.
Características Principales
01Proper admin asset enqueuing and dynamic JavaScript lifecycle handling for repeatable rows
02Template-safe HTML escaping implementation using ACF's escaping_html support flag
03Clean field type registration via the acf/include_field_types hook and initialize metadata
04Dynamic input naming to ensure full compatibility with Repeaters, Clones, and Flexible Content
0524 GitHub stars
06Separated lifecycle transformations across validation, update, load, format, and delete stages
Casos de Uso
01Creating bespoke WordPress editor controls such as JSON schema editors, map pickers, or custom sliders
02Fixing custom ACF fields that break or fail to save inside nested repeaters, clone fields, or AJAX modals
03Hardening custom field data pipelines to prevent XSS and ensure consistency across frontend and REST API responses