1. an AI email drafter which used my product docs and custom instructions as context (eventually I plan to add "tools" where the AI can lookup info in our database)

2. a simple email client with a sidebar with customer contextual info (their billing plan, etc.) and a few simple buttons for the operator to take actions on their account

3. A few basic team collaboration features, notes, assigning tickets to operators, escalating tickets...

It took about 2 days to build the initial version, and about 2 weeks to iron out a number of annoying AI slop bugs in the beginning. But after a month of use it's now pretty stable, my customer support hire is using it and she's happy.