It worked quite well, but the script quickly grew complex, and it's not ideal to manage contacts in a Google Sheet. So I decided to build what I needed once and for all and I wanted to make it completely open-source and with a MIT licence.
In the link you can see the result. What started small has now grown into a full-fledged headless customer platform. It's all designed around MCP being a primary interface. Sure, it might be thin in some areas, but it works surprisingly well. Give it a spin and let me know what you think, appreciate all feedback either product or tech-wise. Here's a small 3 min video where I demo some of the features: https://vimeo.com/1204180225