A method for creating single-file HTML demo pages that act as WordPress design prototypes. Each marked section can later become a WordPress template part, and demo content can become editable custom fields.

Use it to create homepage and inner-page demos with embedded CSS, then convert their styles, sections, and content into WordPress theme files and fields.

It lets clients review the complete page before WordPress development and preserves a clear link between the approved design and the final theme structure.

wp-demo — Skill for Claude Code by yojahny55

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 yojahny55/claude-wp-builder --skill wp-demo

Clone the repo

git clone --depth 1 https://github.com/yojahny55/claude-wp-builder

Made for: Claude Code.

Or install claude-wp-builder, the plugin that ships this one along with the rest of its 15 skills, 30 commands, 15 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/yojahny55/claude-wp-builder/wp-demo/github.svg)](https://agentmods.dev/skills/yojahny55/claude-wp-builder/wp-demo)

Your own site

<a href="https://agentmods.dev/skills/yojahny55/claude-wp-builder/wp-demo"><img src="https://agentmods.dev/badge/skills/yojahny55/claude-wp-builder/wp-demo/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/yojahny55/claude-wp-builder/wp-demo"><img src="https://agentmods.dev/badge/skills/yojahny55/claude-wp-builder/wp-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,647 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 5 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Prompt Injection · line 55
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
high Prompt Injection · line 181
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
high Prompt Injection · line 368
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
high Prompt Injection · line 373
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
high Prompt Injection · line 464
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.

Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00022	$0.04647
Opus 5	$0.00011	$0.02323
Sonnet 5	$0.00004	$0.00929
Haiku 4.5	$0.00002	$0.00465

Measured 12d ago against content hash 7b405200bf34, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

wp-demo 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 12d 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.

skills/wp-demo/SKILL.md · 531 lines

How it starts

The opening of the file, as written. The whole thing — 531 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Demo HTML Creation Methodology

This skill defines how to create static HTML demo pages that serve as the design prototype and are later converted 1:1 into WordPress templates. Each demo is a single HTML file with all CSS embedded in a <style> block.

Purpose of Demos

Demos are the design-first step before WordPress development:

Design agreement -- the client reviews a working HTML page in the browser
CSS extraction -- the <style> block is extracted verbatim into the theme's assets/css/styles.css
Section mapping -- each marked section in the demo maps to a template-parts/section-*.php file in WordPress
Field definition -- every piece of content in the demo becomes an ACF/SCF field

File Structure

demo/
├── index.html          # Homepage demo
├── pricing.html        # Pricing page demo
├── about.html          # About page demo
└── ...                 # One file per page

Naming Convention

Homepage: demo/index.html
Other pages: demo/<page-slug>.html (e.g., demo/pricing.html, demo/software.html)

Single-File HTML Structure

Each demo is a single HTML file containing everything: meta tags, embedded CSS, HTML content, and optional inline JS.

Template Skeleton

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Site Name — Page Title</title>

    <!-- Google Fonts -->
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap" rel="stylesheet">

    <style>
        /* ============ Section: Variables ============ */
        :root {
            /* Colors */
            --color-primary: #1a5632;
            --color-primary-light: #2d7a4a;
            --color-primary-dark: #0f3d22;
            --color-secondary: #c9a84c;
            --color-neutral-50: #fafafa;
            --color-neutral-100: #f5f5f5;
            --color-neutral-200: #e5e5e5;
            --color-neutral-500: #737373;
            --color-neutral-800: #262626;
            --color-neutral-900: #171717;
            --color-text: var(--color-neutral-800);
            --color-text-light: var(--color-neutral-500);
            --color-text-inverse: #ffffff;
            --color-background: #ffffff;
            --color-background-alt: var(--color-neutral-50);
            --color-border: var(--color-neutral-200);

            /* Spacing */
            --spacing-xs: 0.25rem;
            --spacing-sm: 0.5rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;

            /* Typography */
            --font-family-primary: 'Inter', sans-serif;
            --font-family-secondary: 'Playfair Display', serif;
            --font-size-xs: 0.75rem;
            --font-size-sm: 0.875rem;
            --font-size-base: 1rem;
            --font-size-md: 1.125rem;
            --font-size-lg: 1.25rem;
            --font-size-xl: 1.5rem;
            --font-size-2xl: 2rem;
            --font-size-3xl: 2.5rem;
            --font-size-4xl: 3rem;

            /* Other tokens */
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
            --radius-sm: 0.25rem;
            --radius-md: 0.5rem;
            --radius-lg: 1rem;
            --radius-full: 9999px;
            --transition-base: all 0.3s ease;
            --container-max: 1280px;
        }

        /* ============ Section: Reset ============ */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family-primary);
            font-size: var(--font-size-base);
            line-height: 1.5;
            color: var(--color-text);
            background: var(--color-background);
        }
        img { display: block; max-width: 100%; height: auto; }
        a { color: inherit; text-decoration: none; }
        ul, ol { list-style: none; }

        /* ============ Section: Layout ============ */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ============ Section: Header ============ */
        .header { ... }

        /* ============ Section: Hero ============ */
        .hero { ... }

        /* ============ Section: Services ============ */
        .services { ... }

        /* ... more sections ... */

        /* ============ Section: Footer ============ */
        .footer { ... }

        /* ============ Section: Responsive ============ */
        @media (max-width: 1024px) { ... }
        @media (max-width: 768px) { ... }
        @media (max-width: 576px) { ... }
    </style>
</head>
<body>

    <!-- ============ SECTION: Header ============ -->
    <header class="header">
        <div class="container">
            <div class="header__inner">
                <a href="/" class="header__logo">
                    <img src="https://placehold.co/180x50?text=Logo" alt="Site Name">
                </a>
                <nav class="header__nav">
                    <a href="#" class="nav__link nav__link--active">Home</a>
                    <a href="#services" class="nav__link">Services</a>
                    <a href="pricing.html" class="nav__link">Pricing</a>
                    <a href="#contact" class="nav__link">Contact</a>
                </nav>
                <a href="#contact" class="btn btn--primary">Get Started</a>
                <button class="header__hamburger" aria-label="Toggle menu">
                    <span></span><span></span><span></span>
                </button>
            </div>
        </div>
    </header>
    <!-- ============ END SECTION: Header ============ -->

    <main>
        <!-- ============ SECTION: Hero ============ -->
        <section class="hero">
            <div class="container">
                <div class="hero__content">
                    <span class="hero__label">Welcome to Site Name</span>
                    <h1 class="hero__title">Your Compelling Headline Here</h1>
                    <p class="hero__subtitle">A brief supporting description that explains the value proposition in one or two sentences.</p>
                    <div class="hero__cta">
                        <a href="#contact" class="btn btn--primary btn--large">Primary Action</a>
                        <a href="#services" class="btn btn--secondary btn--large">Secondary Action</a>
                    </div>
                </div>
                <div class="hero__image">
                    <img src="https://placehold.co/600x400?text=Hero+Image" alt="Hero image description">
                </div>
            </div>
        </section>
        <!-- ============ END SECTION: Hero ============ -->

        <!-- ============ SECTION: Services ============ -->
        <section class="services section section--alt" id="services">
            <div class="container">
                <span class="section__label">What We Do</span>
                <h2 class="section__title">Our Services</h2>
                <div class="services__grid">
                    <!-- Service cards here -->
                </div>
            </div>
        </section>
        <!-- ============ END SECTION: Services ============ -->

        <!-- ... more sections ... -->

        <!-- ============ SECTION: Contact ============ -->
        <section class="contact section" id="contact">
            <div class="container">
                <!-- Contact content -->
            </div>
        </section>
        <!-- ============ END SECTION: Contact ============ -->
    </main>

    <!-- ============ SECTION: Footer ============ -->
    <footer class="footer">
        <div class="container">
            <div class="footer__grid">
                <div class="footer__brand">
                    <img src="https://placehold.co/180x50?text=Logo" alt="Site Name" class="footer__logo">
                    <p class="footer__tagline">Brief company tagline here.</p>
                </div>
                <div class="footer__links">
                    <h3 class="footer__heading">Quick Links</h3>
                    <ul>
                        <li><a href="#">Home</a></li>
                        <li><a href="#">Services</a></li>
                        <li><a href="#">Pricing</a></li>
                        <li><a href="#">Contact</a></li>
                    </ul>
                </div>
                <div class="footer__contact">
                    <h3 class="footer__heading">Contact</h3>
                    <p>[email protected]</p>
                    <p>(555) 123-4567</p>
                </div>
                <div class="footer__social">
                    <h3 class="footer__heading">Follow Us</h3>
                    <!-- Social links -->
                </div>
            </div>
            <div class="footer__bottom">
                <p>&copy; 2025 Site Name. All rights reserved.</p>
                <div class="footer__legal">
                    <a href="#">Privacy Policy</a>
                    <a href="#">Terms & Conditions</a>
                </div>
            </div>
        </div>
    </footer>
    <!-- ============ END SECTION: Footer ============ -->

    <script>
        // Minimal JS for demo interactivity (hamburger toggle, scroll effects)
    </script>

</body>
</html>

Read the full file on GitHub · 531 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.

12d ago First seen · 531 lines · 22 tokens per session scan A 7b405200bf34

Subscribe to this mod's changes

wp-demo is a skill published in the GitHub repository yojahny55/claude-wp-builder (6 stars, last pushed today), licensed MIT. It adds 22 tokens to every session and 4,647 once invoked, about $0.0001 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 2026-08-31.

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