wp-block-themes

wp-block-themes is a skill for Claude Code from dr-robert-li/cowork-wordpress-expert. It costs 42 tokens per session (882 once invoked), scanned A, original, MIT.

A guide to building WordPress block themes, which use the WordPress Site Editor and reusable content blocks to control a site's layout and design.

In plain words
What is it for?
Use it to edit global design settings, create templates and reusable sections, add patterns and style variations, and troubleshoot style hierarchy and caching.
Why use it?
It helps explain why theme settings, templates, patterns, or style changes are not appearing consistently in the editor or on the site.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the wordpress-expert plugin — 54 skills shipped together

Good fit Use it to edit global design settings, create templates and reusable sections, add patterns and style variations, and troubleshoot style hierarchy and caching.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dr-robert-li/cowork-wordpress-expert --skill wp-block-themes
Clone the repo
git clone --depth 1 https://github.com/dr-robert-li/cowork-wordpress-expert

Made for: Claude Code.

Or install wordpress-expert, the plugin that ships this one along with the rest of its 54 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for wp-block-themes

README.md
[![agentmods](https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes/github.svg)](https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes)
Your own site
<a href="https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes"><img src="https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for wp-block-themes

Your own site · 80×15
<a href="https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes"><img src="https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-block-themes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 882 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.00882
Opus 5 $0.00021 $0.00441
Sonnet 5 $0.00008 $0.00176
Haiku 4.5 $0.00004 $0.00088

Measured 11d ago against content hash f62355257cfd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

wp-block-themes scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

references/wp-block-themes/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WP Block Themes

When to use

Use this skill for block theme work such as:

  • editing theme.json (presets, settings, styles, per-block styles)
  • adding or changing templates (templates/*.html) and template parts (parts/*.html)
  • adding patterns (patterns/*.php) and controlling what appears in the inserter
  • adding style variations (styles/*.json)
  • debugging “styles not applying” / “editor doesn’t reflect theme.json”

Inputs required

  • Repo root and which theme is targeted (theme directory if multiple exist).
  • Target WordPress version range (theme.json version and features vary by core version).
  • Where the issue manifests: Site Editor, post editor, frontend, or all.

Procedure

0) Triage and locate block theme roots

  1. Run triage:
    • node skills/wp-project-triage/scripts/detect_wp_project.mjs
  2. Detect theme roots + key folders:
    • node skills/wp-block-themes/scripts/detect_block_themes.mjs

If multiple themes exist, pick one and scope all changes to that theme root.

1) Create a new block theme (if needed)

If you are creating a new block theme from scratch (or converting a classic theme):

  • Prefer starting from a known-good scaffold (or exporting from a WP environment) rather than guessing file layout.
  • Be explicit about the minimum supported WordPress version because theme.json schema versions differ.

Read:

  • references/creating-new-block-theme.md

After creating the theme root, re-run detect_block_themes and continue below.

2) Confirm theme type and override expectations

  • Block theme indicators:
    • theme.json present
    • templates/ and/or parts/ present
  • Remember the style hierarchy:
    • core defaults → theme.json → child theme → user customizations
    • user customizations can make theme.json edits appear “ignored”

Read:

  • references/debugging.md (style hierarchy + fastest checks)

3) Make theme.json changes safely

Decide whether you are changing:

  • settings (what the UI allows): presets, typography scale, colors, layout, spacing
  • styles (how it looks by default): CSS-like rules for elements/blocks

Read the full file on GitHub · 117 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 117 lines · 42 tokens per session scan A f62355257cfd

Subscribe to this mod's changes

wp-block-themes is a skill published in the GitHub repository dr-robert-li/cowork-wordpress-expert (28 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 882 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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