Huawei Cisco Systems, Inc. Cisco Systems, Inc. This document proposes a YANG module that provides per-node capabilities for optimum operational data collection. This YANG module augments the YANG Modules for describing System Capabilities and YANG-Push Notification capabilities. This module defines augmented nodes to publish the metadata information specific to YANG node-identifier as per ietf-system- capabilities datatree. Complementary RPCs, based on the same node capabilities, simplify the data collection operations.