Add allOf, anyOf, oneOf, not to illuminate/json-schema

[Runonstof]

Hi,

I was creating an agent with structured output with laravel/ai and I noticed I can't use allOf, anyOf, oneOf, not in my json schema.

I had to write my own custom implementation that extends the regular classes.

Here is an example why and how I want to use it.
The example below ensures there is one string inside result.reasons when result.approved = false. (See the ->min(1))
When result.approved = true the other values are omitted.

This is very helpful instead of having no minimum on result.reasons, because without anyOf, AI could return result.approved = false and result.reasons = []

 /**
     * Get the agent's structured output schema definition.
     */
    public function schema(JsonSchema $unused): array
    {
        $schema = new JsonSchemaTypeFactory;

        return [
            'result' => $schema->object()->required()->anyOf([
                $schema->object([
                    'approved' => $schema->boolean()->description('Whether the message was approved or denied.')->enum([false])->required(),
                    'reasons' => $schema->array()
                        ->min(1)
                        ->items($schema->string()->description('The reason why the message was denied.')->enum([
                            'contains_name',
                            'contains_age',
                            'contains_birthdate',
                            'contains_birthplace',
                            'contains_address',
                            'contains_phone_number',
                            'contains_email_address',
                            'contains_relation_name',
                            'contains_location',
                            'contains_employer_name',
                            'contains_school_name'
                        ])->required())
                        ->required(),
                    'explanation' => $schema->string()->description('The explanation for why the message was denied.')->required(),
                ]),
                $schema->object([
                    'approved' => $schema->boolean()->enum([true])->required(),
                ]),
            ]),
        ];
    }

As I said, I have already 'implemented' it myself by overwriting methods and classes where necessary and this works.