zenobi-us/opencode-background ? reverse-engineered prompt

Build me an OpenCode plugin that lets me start and manage background tasks from chat.

I want to be able to launch long running commands, give them a friendly name, add tags like build, test, or server, and then see what is running, what finished, and what failed. It should keep showing recent output so I can check logs without leaving the session. I also want to filter the list by tags or status, and stop one task or a whole group when I need to.

Please make it handle both session only tasks and global tasks that keep running across sessions until I stop them. Clean up session tasks automatically when the session ends, and make sure everything shuts down when the app closes. If you need to, look up the current OpenCode plugin docs online so the integration matches the latest setup.