Title: FunctionDeclaration::getJsonSchema
Published: May 20, 2026

---

# FunctionDeclaration::getJsonSchema()

## In this article

 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#wp--skip-link--target)

{@inheritDoc}

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#source)󠁿

    ```php
    public static function getJsonSchema(): array
    {
        return ['type' => 'object', 'properties' => [self::KEY_NAME => ['type' => 'string', 'description' => 'The name of the function.'], self::KEY_DESCRIPTION => ['type' => 'string', 'description' => 'A description of what the function does.'], self::KEY_PARAMETERS => ['type' => 'object', 'description' => 'The JSON schema for the function parameters.', 'additionalProperties' => \true]], 'required' => [self::KEY_NAME, self::KEY_DESCRIPTION]];
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/tools/dto/functiondeclaration.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/Tools/DTO/FunctionDeclaration.php#L93)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/Tools/DTO/FunctionDeclaration.php#L93-L96)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#related)󠁿

| Used by | Description | 
| [ModelConfig::getJsonSchema()](https://developer.wordpress.org/reference/classes/wordpress-aiclient-providers-models-dto-modelconfig/getjsonschema/)`wp-includes/php-ai-client/src/Providers/Models/DTO/ModelConfig.php` |

{@inheritDoc}

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-tools-dto-functiondeclaration/getjsonschema/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.1.0](https://developer.wordpress.org/reference/since/0.1.0/) | Introduced. |

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