Trying to understand what the agent is doing here

In using Agent mode sometimes it tries to run something in terminal and then it seems to just lag or hang here and I’m trying to figure out what it’s trying to do so I know how to help it and any insight you can give me would be great. And I’ll just say skip and continue forever.

Looks like it is trying to run a dev server for you. Dev servers are so you can open the project in the browser and see what your project looks like.
I don’t normally allow it to do that because I run it myself in a separate window outside of cursor.