[Function Calling Not Working] mwai_functions_list + Meow_MWAI_Query_Function::f

Hi,

I’m using the latest Pro version of AI Engine with a valid license, and I’m trying to register a custom PHP function so that it can be called via chatbot using Function Calling. 🔍 My Goal:

I want to call a PHP function (e.g. fetch_order_info) from a chatbot. I followed the official documentation and used the mwai_functions_list filter along with Meow_MWAI_Query_Function::fromJson() to define and register the function. ✅ What I tried:

1. I added this code inside the Code Engine → PHP Snippet:

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add_filter('mwai_functions_list', function($functions) { $functions[] = Meow_MWAI_Query_Function::fromJson([ 'id' => 'fetch_order_info', 'type' => 'manual', 'name' => 'fetch_order_info', 'desc' => 'Fetch order data from Airtable', 'args' => [ [ 'name' => 'order_id', 'type' => 'string', 'required' => true, 'desc' => 'Order ID', ], ], ]); return $functions; });

But I constantly get:

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⚠️ Invalid PHP Function

Even when trying just the filter line alone. 🧪 Notes:

• I’ve tested and confirmed that the function body (call_fetch_order_info) works independently.
• I’m using a Cloudflare Worker as a proxy to fetch data from Airtable.
• The real issue seems to be the Code Engine not allowing Meow_MWAI_Query_Function::fromJson() or filters like mwai_functions_list.

❓What I Need:

1. Is Function Calling supposed to work inside Code Engine PHP snippets, or must it be registered from theme/plugin only?
2. Can you please confirm if there’s another way to declare functions for Function Calling entirely within the UI (like Snippet Vault)?
3. If not, can we at least get a toggle to allow fromJson() inside Code Engine?

Thank you so much — I’d love to integrate this properly without relying on external plugins if possible.