version: "1.0.2" name: hyva-cms-component description: Create custom Hyvä CMS component. This skill should be used when the user wants to create a new Hyvä CMS component, build a Hyvä component, or needs help with components.json and PHTML templates for Hyvä CMS. Trigger phrases include "create hyva cms component", "add cms component", "new hyva component", "build page hyva cms element", "custom cms element". requires: hyva-exec-shell-cmd, hyva-create-module, hyva-cms-components-dump, hyva-render-media-image

Hyvä CMS Component Creator

Overview

This skill guides the interactive creation of custom Hyvä CMS components for Magento 2. It supports creating components in new or existing modules, with field presets for common patterns and automatic setup:upgrade execution.

Command execution: For commands that need to run inside the development environment (e.g., bin/magento), use the hyva-exec-shell-cmd skill to detect the environment and determine the appropriate command wrapper.

Workflow

Step 1: Module Selection

If not already specified in the prompt, ask the user where to create the component:

Option A: New Module

Ask for both values (do not assume defaults without asking):

1. Vendor name (e.g., Acme) - Required, no default. Do not suggest a Vendor name, prompt for user input.
2. Module name - Suggest CmsComponents as default so user can press Enter to accept

Then use the hyva-create-module skill with:

• dependencies: ["Hyva_CmsBase"]
• composer_require: {"hyva-themes/commerce-module-cms": "^1.0"}

Option B: Existing Module

• Request the module path (can be in app/code/, vendor/, or custom location)
• Verify the module has Hyva_CmsBase as a dependency in etc/module.xml. If not present, add it.
• Verify the module has hyva-themes/commerce-module-cms as a dependency in composer.json. If not present, add it.

Step 2: Component Details

Gather component information:

1. Component name (snake_case, e.g., feature_card)
2. Label (display name in editor, e.g., "Feature Card")
3. Category (Layout, Elements, Media, Content, or Other)
4. Icon - Automatically select an appropriate icon:

Step 4a: Identify icons already in use Use the hyva-cms-components-dump skill to dump all current CMS components. Extract all icon values from the output to build a list of icons already in use by existing components.

Step 4b: Find available lucide icons List the SVG files in vendor/hyva-themes/magento2-theme-module/src/view/base/web/svg/lucide/ to get the full set of available icons.

Step 4c: Select the best fitting icon From the available lucide icons that are NOT already in use by another component:

• Choose the icon whose name best matches the purpose/meaning of the new component
• Consider semantic meaning (e.g., shopping-cart.svg for cart-related, image.svg for image-related, layout-grid.svg for grid layouts)
• Format the selected icon as Hyva_Theme::svg/lucide/[icon-name].svg

If no suitable unused icon can be found, or if the lucide directory doesn't exist, leave the icon property unset.

Step 3: Field Selection

Offer field presets or custom field creation. See references/field-types.md "Field Presets" section for available presets (Basic Card, Image Card, CTA Block, Text Block, Feature Item, Testimonial, Accordion Item) or allow custom field definition.

Authoritative field types: prefer the project's live list when available — run bin/magento hyva:cms:list-fields (core + custom field types) via the hyva-exec-shell-cmd wrapper. Fall back to references/field-types.md only when the command is unavailable.

For custom fields, iterate through each field asking:

1. Field name (snake_case)
2. Field type (see references/field-types.md)
3. Label
4. Default value (optional)
5. Required? (yes/no) - Note: This will be added as attributes.required, NOT as a direct field property
6. Any additional attributes (these go in the attributes object)

Step 4: Variant Support

Ask if the component needs template variants:

• If yes: Gather variant names and labels (e.g., default, compact, wide). See references/variant-support.md for configuration details.
• If no: Use single template

Step 5: Generate Files

Create the required files:

For New Modules

The hyva-create-module skill creates the base module structure. Then add the CMS-specific directories:

app/code/[Vendor]/[Module]/
├── registration.php          # Created by hyva-create-module
├── composer.json             # Created by hyva-create-module
├── etc/
│   ├── module.xml            # Created by hyva-create-module
│   └── hyva_cms/
│       └── components.json   # Create this
└── view/
    └── frontend/
        └── templates/
            └── elements/
                └── [component-name].phtml (or [component-name]/ for variants)

For Existing Modules

Create or update:

• etc/hyva_cms/components.json (merge with existing if present)
• view/frontend/templates/elements/[component-name].phtml

Step 6: Run Setup

After creating files, run bin/magento setup:upgrade using the appropriate command wrapper detected by the hyva-exec-shell-cmd skill.

File Generation Details

components.json Structure

{
    "[component_name]": {
        "label": "[Label]",
        "category": "[Category]",
        "template": "[Vendor]_[Module]::elements/[component-name].phtml",
        "content": {
            // Generated fields
        },
        "design": {
            "includes": [
                "Hyva_CmsBase::etc/hyva_cms/default_design.json",
                "Hyva_CmsBase::etc/hyva_cms/default_design_typography.json"
            ]
        },
        "advanced": {
            "includes": [
                "Hyva_CmsBase::etc/hyva_cms/default_advanced.json"
            ]
        }
    }
}

Valid Component Properties

IMPORTANT: Only specific properties are allowed at the component level. See references/component-schema.md for the complete schema reference.

Key properties: label (required), category, template, icon, children, require_parent, content, design, advanced, disabled, custom_properties.

Invalid properties that will cause schema errors:

• hidden - Does not exist. Use require_parent: true for child-only components, or disabled: true
• Any property not listed in the schema reference

Children Configuration (CRITICAL)

IMPORTANT: children is a ROOT-LEVEL component property, NOT a field type within content, design, or advanced.

INCORRECT ❌:

{
    "my_component": {
        "content": {
            "items": {
                "type": "children",
                "label": "Items"
            }
        }
    }
}

CORRECT ✅:

{
    "my_component": {
        "label": "My Component",
        "children": {
            "config": {
                "accepts": ["child_component"],
                "max_children": 10
            }
        },
        "content": {
            "title": {
                "type": "text",
                "label": "Title"
            }
        }
    }
}

In templates, access children via $block->getData('children'), NOT via a custom field name.

Field Validation (CRITICAL)

IMPORTANT: Field validation attributes like required must be placed in the attributes object, NOT as direct field properties.

INCORRECT ❌:

{
    "title": {
        "type": "text",
        "label": "Title",
        "required": true
    }
}

CORRECT ✅:

{
    "title": {
        "type": "text",
        "label": "Title",
        "attributes": {
            "required": true
        }
    }
}

Other validation attributes that go in attributes:

• required (boolean)
• minlength / maxlength (string)
• min / max (for numbers)
• pattern (regex string)
• placeholder (string)
• comment (help text)
• Custom data attributes for validation messages

Child-Only Components

For components that should only be used as children of other components (like list items), use require_parent: true:

{
    "my_list_item": {
        "label": "My List Item",
        "category": "Elements",
        "require_parent": true,
        "template": false,
        "content": {
            "title": {"type": "text", "label": "Title"}
        }
    },
    "my_list": {
        "label": "My List",
        "category": "Elements",
        "template": "Vendor_Module::elements/my-list.phtml",
        "children": {
            "config": {
                "accepts": ["my_list_item"]
            }
        }
    }
}

When template: false, the parent component renders the child data directly (NOT using $block->createChildHtml()). See "Rendering Children with template: false" below.

PHTML Template Structure

Every template must start with this header:

<?php
declare(strict_types=1);
 
use Hyva\CmsLiveviewEditor\Block\Element;
use Hyva\Theme\Model\ViewModelRegistry;
use Magento\Framework\Escaper;
 
/** @var Element $block */
/** @var Escaper $escaper */
/** @var ViewModelRegistry $viewModels */

Additional requirements:

1. $block->getEditorAttrs() on root element
2. $block->getEditorAttrs('field_name') on editable elements
3. Proper escaping with $escaper->escapeHtml() and $escaper->escapeHtmlAttr()

Template Patterns by Field Type

Text fields:

$title = $block->getData('title');
// In template:
<?php if ($title): ?>
    <h2 <?= /** @noEscape */ $block->getEditorAttrs('title') ?>>
        <?= $escaper->escapeHtml($title) ?>
    </h2>
<?php endif; ?>

Richtext/HTML fields:

$content = $block->getData('content');
// In template (no escaping for richtext):
<?php if ($content): ?>
    <div <?= /** @noEscape */ $block->getEditorAttrs('content') ?>>
        <?= /** @noEscape */ $content ?>
    </div>
<?php endif; ?>

Image fields:

Use the hyva-render-media-image skill for rendering images. It provides the complete API reference and code patterns for the \Hyva\Theme\ViewModel\Media view model.

Add these imports when rendering images:

// Additional imports for templates with images:
use Hyva\Theme\ViewModel\Media;
 
/** @var Media $mediaViewModel */
$mediaViewModel = $viewModels->require(Media::class);

The data from $block->getData('image') can be passed directly to getResponsivePictureHtml():

$image = $block->getData('image');
 
// In template:
<?php if ($image): ?>
    <?= /** @noEscape */ $mediaViewModel->getResponsivePictureHtml(
        $image,
        ['class' => 'w-full h-auto', 'loading' => 'lazy']
    ) ?>
<?php endif; ?>

For responsive images with separate desktop and mobile sources, see the hyva-render-media-image skill.

Link fields:

$link = $block->getData('link');
$linkData = $link ? $block->getLinkData($link) : null;
// In template:
<?php if ($linkData): ?>
    <a href="<?= $escaper->escapeUrl($linkData['url']) ?>"
       <?php if (!empty($linkData['target'])): ?>target="<?= $escaper->escapeHtmlAttr($linkData['target']) ?>"<?php endif; ?>>
        <?= $escaper->escapeHtml($linkData['title'] ?: 'Read more') ?>
    </a>
<?php endif; ?>

Boolean fields:

$showTitle = (bool) $block->getData('show_title');
// In template:
<?php if ($showTitle && $title): ?>
    <!-- title markup -->
<?php endif; ?>

Select fields:

$style = $block->getData('style') ?: 'default';
$styleClasses = match($style) {
    'primary' => 'bg-blue-600 text-white',
    'secondary' => 'bg-gray-200 text-gray-800',
    default => 'bg-white text-gray-600'
};

Children fields (with their own templates):

When child components have their own templates (default behavior), use $block->createChildHtml():

$children = $block->getData('children') ?: [];
// In template:
<?php foreach ($children as $index => $child): ?>
    <?= /** @noEscape */ $block->createChildHtml($child, 'child-' . $index) ?>
<?php endforeach; ?>

Rendering Children with `template: false`:

When child components have "template": false, the parent component renders them directly. Child data is flat - field values are directly on the child array, NOT nested under a content key.

$children = $block->getData('children') ?: [];
 
// In template - iterate and access child data directly:
<?php foreach ($children as $elementData): ?>
    <?php
    // Access fields directly on $elementData (NOT $elementData['content']['field'])
    $image = $elementData['image'] ?? null;
    $title = $elementData['title'] ?? '';
    $description = $elementData['description'] ?? '';
 
    // Each child has a 'uid' for editor attributes
    $childUid = $elementData['uid'];
    ?>
    <div <?= /** @noEscape */ $block->getEditorAttrs('', $childUid) ?>>
        <?php if (!empty($image['src'])): ?>
            <?php // For image rendering patterns, see the hyva-render-media-image skill ?>
            <?= /** @noEscape */ $mediaViewModel->getResponsivePictureHtml(
                [$block->getResponsiveImageData($image)],
                ['alt' => $image['alt'] ?? '', 'class' => 'w-full h-auto', 'loading' => 'lazy']
            ) ?>
        <?php endif; ?>
        <p <?= /** @noEscape */ $block->getEditorAttrs('title', $childUid) ?>>
            <?= $escaper->escapeHtml($title) ?>
        </p>
    </div>
<?php endforeach; ?>

Key points for `template: false` children:

• Child field data is flat: use $elementData['field_name'], NOT $elementData['content']['field_name']
• Each child has a uid property for editor attributes
• Use $block->getEditorAttrs('field_name', $childUid) to enable live editing of child fields
• Use $block->getEditorAttrs('', $childUid) on the child's root element
• For images, check !empty($image['src']) and use $block->getResponsiveImageData($image) to process the image data
• For advanced image rendering patterns (responsive breakpoints, etc.), see the hyva-render-media-image skill

Resources

references/critical-patterns.md

READ THIS FIRST - Essential patterns and common mistakes including:

• Correct children configuration (root-level vs field type)
• Proper field validation with attributes
• Default value syntax
• Quick checklist before generating components

Read this file before generating any component to avoid common errors.

references/example-component.md

Complete end-to-end example showing a Feature Card component with:

• Full components.json definition
• Matching PHTML template with all field types
• Supporting module files (registration.php, module.xml, composer.json)
• Directory structure overview

Read this file when you need a reference for how all the pieces fit together.

Component/field schema (read from the project, with a bundled fallback)

The Hyvä CMS schema is project-version-dependent. Prefer the live schema from the installed Hyvä Commerce package: if vendor/hyva-themes/commerce-module-cms/src/liveview-editor/etc/hyva_cms/jsonschema/ exists, read its JSON files directly (no interpreter needed) for this project's authoritative component and field declarations:

• component-declaration.json — valid component-level properties
• component-field-declaration.json — field declaration properties, field types, validation attributes

Only when Hyvä Commerce is not installed, fall back to the bundled references/component-schema.md. Read either source when validating component structure or when encountering schema validation errors.

The bundled references/component-schema.md is a fallback snapshot. To refresh it

after a Hyvä CMS update, regenerate it by reading the jsonschema/*.json files

above — no helper script is required.

references/field-types.md

Complete reference for all supported field types including:

• Field configuration syntax
• All available field types with examples
• Validation attributes
• Conditional visibility (show_if/hide_if)
• Field presets for common patterns

Read this file when generating field configurations.

references/variant-support.md

Guide for implementing template variants including:

• Directory structure for variant templates
• Variant field configuration in components.json
• Template implementation patterns
• Common variant patterns and best practices

Read this file when the user wants multiple layout options for a component.

references/troubleshooting.md

Solutions for common issues including:

• Schema validation errors
• Component not visible in editor
• Template not rendering
• Live editor not working
• Image display issues
• Fallbacks when dependent skills are unavailable

Read this file when encountering errors during component creation or testing.

assets/templates/component/template.phtml.tpl

Base PHTML structure for CMS components.

Placeholders:

• {{CONTENT_FIELDS}} - PHP variable declarations
• {{TEMPLATE_BODY}} - HTML template content

Important Guidelines

1. Always use `getEditorAttrs()` on the root element and on each editable field element
2. Never use `<script>` tags in templates - use Alpine.js via alpine:init event
3. Escape all user content with appropriate escaper methods
4. Use meaningful default values for better merchant experience
5. Include design/advanced sections via includes for consistency
6. Validate component names are snake_case with only lowercase letters, numbers, and underscores
7. CRITICAL: Use `default_value` key, NOT `default` - The correct JSON key for default values is default_value (with underscore), not default. Example: "default_value": "My Title" ✅, NOT "default": "My Title" ❌
8. CRITICAL: `children` is a root-level property, NOT a field type - Never use "type": "children" in content/design/advanced. Declare children at component root level. Access via $block->getData('children') in templates.
9. CRITICAL: Validation goes in `attributes`, NOT as direct properties - Use "attributes": {"required": true} ✅, NOT "required": true ❌. All HTML5 validation attributes (required, minlength, maxlength, pattern, min, max) must be inside the attributes object.

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