Auto follow-ups for outbound SMS chats

We’d like to implement automatic follow-up messages for outbound SMS chats when a customer has not replied after a set period.

Currently, /create-chat-completion can add/generated messages in the chat, but those messages do not appear to be delivered over SMS. Is there any supported way to make /create-chat-completion send the generated message through the existing SMS chat transport?

If not, could Retell add native auto follow-ups for outbound SMS chats, or provide an API endpoint to send an agent-generated SMS message into an existing sms_chat conversation?

Second this, it would be a dramatic improvement for SMS based conversations, since many contacts might not respond as frequently as we’d like and sometime need an extra AI nudge.