Can it help fix 'Invalid Block' errors in the editor?

Absolutely. The skill provides dedicated procedures for handling block deprecations and attribute migrations to resolve serialization mismatches.

Does it integrate with standard WordPress build tools?

Yes, it is designed to work with @wordpress/scripts, @wordpress/create-block, and wp-env for a standard professional development workflow.

Can I use this for both static and dynamic blocks?

Yes, it supports static blocks with save() functions as well as dynamic blocks using server-side rendering via render.php or PHP callbacks.

Does this skill support the WordPress Interactivity API?

Yes, it includes specific guidance for implementing the Interactivity API and using viewScriptModule for modern, performant frontend behaviors.

Does it require specific WordPress versions?

This skill is optimized for WordPress 6.9 and above, specifically emphasizing apiVersion 3 to ensure compatibility with the modern iframed editor.

WordPress Block Development

Name: WordPress Block Development
Author: MrGKanev

byMrGKanev

0•

Content Management

Streamlines the creation, configuration, and maintenance of modern WordPress Gutenberg blocks using industry best practices and official tooling.

This skill provides a comprehensive framework for developing WordPress blocks within the Claude Code environment. It automates the entire block lifecycle, from scaffolding new components with @wordpress/create-block to managing complex attribute serialization and block deprecations. By enforcing modern standards like apiVersion 3 and the Interactivity API, it ensures developers build performant, future-proof editor experiences while avoiding common pitfalls such as 'Invalid block' errors and style isolation issues in the iframed editor.

Key Features

01Comprehensive support for both static save() patterns and dynamic PHP rendering (render.php).

02Advanced handling of block deprecations and migrations to prevent editor validation errors.

03Seamless integration with @wordpress/scripts and wp-env for build and test workflows.

040 GitHub stars

05Intelligent management of block.json metadata, including apiVersion 3 migration and style isolation.

06Automated block scaffolding and directory structure setup using @wordpress/create-block.

Use Cases

01Resolving 'Block contains unexpected or invalid content' errors after updating block markup.

02Migrating legacy blocks to support the modern iframed editor introduced in WordPress 6.9+.

03Creating a new custom Gutenberg block with Interactivity API support from scratch.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mrgkanev/agent-skills wp-block-development

For use in Claude.ai and ChatGPT

Download Skill