Struggling with Mailchimp Tags Integration in Lindy Automation

Hi folks, new to Lindy so please pardon what may be an obvious question. Loving Lindy so far, looking to automate a ton of work with it! I can't get Lindy to work with Mailchimp tags. I have contacts being added to mailchimp directly from a squarespace form, but want to automatically convert some form fields into different tags for each subscriber, which I'm trying to use an AI agent in Lindy to complete based off the email confirmation I receive from each new subscriber. I keep testing it and it can't seem to format the tags properly on mailchimp to add them. What am I doing wrong? Or is there a much simpler way to complete this goal.