How can I see in GitHub Copilot which plugins my organization requires in the GitHub Copilot desktop app?

I’m using the GitHub Copilot desktop app on Windows. In a chat session, I see this warning:

Warning: Plugins required by your organization could not be prepared. Continuing with the current setup. Contact your administrator if the problem persists.

The warning includes a Retry required plugins link, but selecting it produces:

No plugins were retried.

Neither message identifies the plugins involved.

Where can I view GitHub Copilot the effective list of plugins required by my organization, including any that failed to install or initialize?