Registered Servers without the ability to connect to Multiple Servers at once I'd like to provide a "directory" of all the different SQL Servers we have our different DEV, TEST, PROD environments by setting it up in Central Management Servers.

Another DBA said to be cautious of giving this to the group because there is an ability to inadvertently run a query on multiple servers IF they did a "New Query" on a group, instead of an individual server (and this would make sense why they call the feature Central Management Server).

Is there any way to provide this "directory" without having to worry about executing commands on multiple machines?
There is no way to avoid that once you share CMS.
Just be aware that it only stores the list of instances of SQL Servers available, but not necessarily everybody has access to connect in every single instance.

Because the connections that are maintained by a central management server execute in the context of the user, by using Windows Authentication, the effective permissions on the registered servers might vary. For example, the user might be a member of the sysadmin fixed server role on the instance of SQL Server A, but have limited permissions on the instance of SQL Server B.