# elementor/4.3.0-beta3/modules/mcp/abilities/manage-variable-guide-ability.php

Elementor Website Builder – more than just a page builder, version 4.3.0-beta3. 96 lines.

- Page: https://pluginprobe.com/plugins/elementor/4.3.0-beta3/code/modules/mcp/abilities/manage-variable-guide-ability.php
- Raw: https://pluginprobe.com/plugins/elementor/4.3.0-beta3/raw/modules/mcp/abilities/manage-variable-guide-ability.php
- Modified: 2026-09-01T11:47:36+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/elementor/4.3.0-beta3/code/modules/mcp/abilities/manage-variable-guide-ability.php#L10-L20`.

```php
<?php

namespace Elementor\Modules\Mcp\Abilities;

use Elementor\Utils as ElementorUtils;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class Manage_Variable_Guide_Ability extends Abstract_Ability {
	const URI = 'elementor://variables/tools/manage-global-variable-guide';

	protected function get_ability_id(): string {
		return 'elementor/manage-global-variable-guide';
	}

	protected function get_definition(): Ability_Definition {
		return new Ability_Definition(
			__( 'Manage Global Variable Guide', 'elementor' ),
			__( 'Detailed guide for using the manage-global-variable tool. Covers available types, naming rules, value rules, and operation examples.', 'elementor' ),
			'elementor',
			[ 'type' => 'string' ],
			[
				'mcp' => [
					'type' => 'resource',
					'uri' => self::URI,
					'public' => true,
					'mimeType' => 'text/plain',
					'description' => __( 'Detailed guide for using the manage-global-variable tool. Covers available types, naming rules, value rules, and operation examples.', 'elementor' ),
				],
			],
			fn() => current_user_can( 'manage_options' )
		);
	}

	public function execute( $input = [] ) {
		return $this->build_guide( ElementorUtils::has_pro() );
	}

	public function build_guide( bool $pro_active ): string {
		$size_section = $pro_active
			? "- **global-size-variable** — A simple CSS length with a unit (Elementor Pro). Use this for fixed spacing, font sizes, or layout values. Example: `16px`, `1.5rem`, `2em`, `10vh`\n- **global-custom-size-variable** — Any CSS size expression that goes beyond a simple number + unit (Elementor Pro). Use this when the value is a CSS function, a keyword, or a combination of units that `global-size-variable` cannot represent. Example: `auto`, `clamp(1rem, 2vw, 2rem)`, `calc(100% - 32px)`, `min(50vw, 600px)`, `300ms`, `2ch`. When in doubt: if the value contains a function call or a keyword, use `global-custom-size-variable`."
			: "- ~~global-size-variable~~ — requires Elementor Pro (not available on this site)\n- ~~global-custom-size-variable~~ — requires Elementor Pro (not available on this site)";

		return <<<GUIDE
# Purpose
Create, update, or delete V4 global CSS variables. These are distinct from legacy v3 globals and map 1:1 to `--css-var: VALUE`.

# Available Types
- **global-color-variable** — CSS color value. Example: `#FF0000`, `rgba(255,0,0,1)`, `hsl(0,100%,50%)`
- **global-font-variable** — A single **Google Font family name** only. Do **NOT** include fallback stacks, quotes, generic families (`sans-serif`, `serif`, `monospace`), or size/px values. Example: `Roboto`, `Playfair Display`. Bad: `Inter, "Helvetica Neue", Arial, sans-serif`.
{$size_section}

# Naming Rules
- Labels must be **lowercase**, using only letters (a-z), numbers, digits (0-9), dashes (-), or underscores (_)
- No spaces, no special characters
- Example: "Headline Primary" → `headline-primary`
- Labels must be unique — always check [elementor://global-variables] first

# Value Rules
- Provide a **plain CSS value** only — do NOT pass JSON, legacy-globals object structures, or variable references
- Values are inserted as-is: `--css-var: <value>`
- NEVER store a px/rem value inside a `global-font-variable` — use `global-size-variable` (Pro) instead
- Font values MUST be a single family name; NEVER a comma-separated list
- Font values MUST come from Google Fonts (no system-only names, no custom user fonts)

# Operations
- **create** — requires `type`, `label`, `value`. Label must be unique.
- **update** — requires `id`, `label`, `value`. Get `id` from [elementor://global-variables]. When renaming: keep existing value. When changing value: keep exact existing label.
- **delete** — requires `id`. DESTRUCTIVE — always confirm with user before executing.

# Examples
Create a brand color:
{ "action": "create", "type": "global-color-variable", "label": "brand-primary", "value": "#1A73E8" }

Create a heading font:
{ "action": "create", "type": "global-font-variable", "label": "font-heading", "value": "Playfair Display" }

Do NOT pass a fallback stack. `{ "value": "Inter, sans-serif" }` is stored as `Inter` only.

Update a variable's value (keep exact label):
{ "action": "update", "id": "abc123", "label": "brand-primary", "value": "#0D47A1" }

Rename a variable (keep existing value):
{ "action": "update", "id": "abc123", "label": "brand-secondary", "value": "#1A73E8" }

Delete a variable:
{ "action": "delete", "id": "abc123" }

# Instruction
Always read [elementor://global-variables] before creating to check existing variables and avoid duplicate labels.
GUIDE;
	}
}

```