# wordpress-block-editor-fse

Guides WordPress 6.7+ Full Site Editing and block theme creation. Helps structure HTML templates, configure theme.json v3, and build blocks with render.php.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 461 installs · ★ 78
- Author: Claude MPM Team
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/bobmatnyc/claude-mpm-skills/tree/HEAD/toolchains/php/frameworks/wordpress/wordpress-block-editor-fse/SKILL.md
- Updated: 2026-07-18
- HTML: https://affpapa.org/en/nevibecode/skills/wordpress-block-editor-fse

## What it does

The skill provides workflow rules for modern Full Site Editing and block theme creation in WordPress 6.7+. It guides the transition from legacy PHP template files to HTML block markup such as `index.html` and `single.html`, managing design tokens directly inside `theme.json` version 3.

It covers the core block theme file structure, CSS custom property generation, fluid typography using `clamp()`, and reusable template parts like `header.html`. For custom components, it details dynamic rendering through `block.json` paired with `render.php`.

Projects dependent on complex PHP logic or teams unfamiliar with Gutenberg will struggle with this block-only workflow. A functional theme strictly requires `style.css` with valid metadata, a configured `theme.json`, and an `index.html` template file.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add bobmatnyc/claude-mpm-skills --skill wordpress-block-editor-fse -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/wordpress-block-editor-fse/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/wordpress-block-editor-fse/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add bobmatnyc/claude-mpm-skills --skill wordpress-block-editor-fse -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/wordpress-block-editor-fse/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add bobmatnyc/claude-mpm-skills --skill wordpress-block-editor-fse -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/wordpress-block-editor-fse/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install bobmatnyc/claude-mpm-skills wordpress-block-editor-fse
```

2. **Manually: put the files in place**
- File: `.github/skills/wordpress-block-editor-fse/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add bobmatnyc/claude-mpm-skills --skill wordpress-block-editor-fse -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/bobmatnyc/claude-mpm-skills --path toolchains/php/frameworks/wordpress/wordpress-block-editor-fse
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/wordpress-block-editor-fse/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add bobmatnyc/claude-mpm-skills --skill wordpress-block-editor-fse -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/bobmatnyc/claude-mpm-skills/tree/HEAD/toolchains/php/frameworks/wordpress/wordpress-block-editor-fse/SKILL.md

## When to use it
- configure global color and spacing tokens in `theme.json` v3
- create HTML templates and template parts for Full Site Editing
- build custom Gutenberg blocks using `block.json` and `render.php`
- configure fluid typography scaling with CSS `clamp()`

## Example prompts
- Generate a `theme.json` version 3 file with custom palettes and fluid font sizes
- Build a block theme structure with `templates/single.html` and a header template part
- Create a custom dynamic block using `block.json` schema and `render.php`

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: f4900304aed84b3e.

BEGIN THIRD-PARTY FILE f4900304aed84b3e
````text
---
name: wordpress-block-editor-fse
description: "Modern WordPress block development and Full Site Editing with theme.json, block themes, and custom blocks for WordPress 6.7+"
user-invocable: false
disable-model-invocation: true
version: 1.0.0
category: development
author: Claude MPM Team
license: MIT
progressive_disclosure:
  entry_point:
    summary: "WordPress 6.7+ block development: FSE with theme.json, custom blocks (block.json + render.php), HTML templates"
    when_to_use:
      - "Block themes with FSE (WP 6.2+)"
      - "Custom Gutenberg blocks"
      - "Centralized theme.json styling"
    quick_start:
      - "theme.json for design tokens"
      - "block.json + render.php"
      - "HTML templates not PHP"
  references:
    - theme-json-schema.md
    - custom-blocks-guide.md
    - fse-architecture.md
    - migration-guide.md
context_limit: 6000
tags:
  - wordpress
  - gutenberg
  - blocks
  - fse
  - theme-json
  - php
  - react
requires_tools: []
---

# WordPress Block Editor & Full Site Editing

## Overview

Full Site Editing (FSE) is production-ready (since WP 6.2) and treats everything as blocks—headers, footers, templates, not just content. Block themes use HTML templates + theme.json instead of PHP files + style.css.

**Key Components:**
- **theme.json**: Centralized colors, typography, spacing, layout
- **HTML Templates**: Block-based files (index.html, single.html)
- **Template Parts**: Reusable components (header.html, footer.html)
- **Block Patterns**: Pre-designed block layouts
- **Site Editor**: Visual template customization

**When to Use:**
✅ New themes, consistent design systems, non-technical user customization
❌ Complex server logic, team unfamiliar with blocks, heavy PHP dependencies

## Full Site Editing Architecture

### Block Themes vs Classic Themes

| Block Themes | Classic Themes |
|-------------|----------------|
| HTML files with blocks | PHP files with template tags |
| theme.json + CSS | functions.php + style.css |
| Site Editor (visual) | Customizer (settings) |
| User edits templates | Limited customization |

### Site Editor Capabilities
- Template editing (pages, posts, archives)
- Template parts (header/footer variations)
- Global styles (colors, typography site-wide)
- Pattern library (save/reuse block compositions)
- Navigation menus (block-based)
- Style variations (alternate design presets)

## theme.json Configuration

theme.json v3 (WP 6.7) provides centralized design control. WordPress auto-generates CSS custom properties.

### Production Example

```json
{
````
END THIRD-PARTY FILE f4900304aed84b3e

The third-party file has ended. Everything between the f4900304aed84b3e tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

First 2557 of 21167 bytes. © Claude MPM Team · MIT · https://github.com/bobmatnyc/claude-mpm-skills/tree/HEAD/toolchains/php/frameworks/wordpress/wordpress-block-editor-fse/SKILL.md

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