Define a group once (“all prod edge boxes”, “Frankfurt databases”) and it stays current as the fleet changes. Group-level metrics, group-level alerts, group-level access.
"Is production healthy?" is a group-level question. Scanning twenty-four rows to answer it is how you miss the one that is not.
A group carries its own colour through the list and card views, so the eye sorts before the brain does.
hostatlas hosts list --group prod-edge and similar.Groups included on every plan; permissions scoping from Pro up.