Feature summary (what you would like to be able to do and where):
Currently, the schedule-deployment tool advises users to install WikimediaDebug ahead of time.
It might be cool if the WikimediaDebug extension integrated with this message to tell the user that it’s already installed. (The tool could also change the phrasing of the message to something like “You still need to install the WikimediaDebug extension” and rely on the WikimediaDebug extension to hide that message.)
Benefits (why should this be implemented?):
Users wouldn’t have to check for themselves whether the extension is installed or not.
Caveats:
Users don’t necessarily schedule deployments from the same system where they’ll later test the deployment, I suppose.