When defining an aggregate property, we're able to specify both: pathFilter which controls which entities are included in your aggregation calculation based on their relationship path from the source entity query which is applied to all entities on the target blueprint I'm proposing an enhancement whereby we can specify a JQ filter ( query -like) which is applied to a mid-path blueprint on a multi-hop relation. For example: Blueprints: _team --owns-> service --involved_in-> incident Aggregation: (on _team ) which counts the total incidents for the last 90d, across all service s they own. As with all metrics, this is to highlight potential problem areas the team may want to invest time in. Now lets say our service blueprint included a status property - an enum of Active / Decommissioned . Allowing us to retain the valuable data we've collected on any service after it's been torn down. This also acts as a lever for filtering in/out such service entities. We could have the aggregate count all incidents across all services. But what's the point in the team investing time on a service we've already decommissioned? We'd rather have the aggregate filter out any service entity with status=Decommissioned , and then count all related incident entities. Workaround you could mirror the status value onto the incident blueprint, and then use pathFilter + query . However this only works if the (direction of) relationships can support the mirror property. It's not always viable. Those using Terraform are potentially more restricted: https://roadmap.port.io/ideas/p/terraform-pulumi-add-relation-resource