I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at < http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Document: draft-ietf-netmod-yang-metadata-04 Reviewer: Robert Sparks Review Date: 1Mar2016 IETF LC End Date: 9Mar2016 IESG Telechat date: not yet scheduled Summary: Ready with nits 1) I might be missing something obvious, but the introduction has two statements that don't seem aligned: " Values of annotations are not limited to strings; any YANG built-in or derived type may be used for them" and "annotations are scalar values and cannot be further structured". If I'm not missing something, that may be more of an open issue than a nit. 2) The shepherd writeup calls out the tension in figuring out whether to make this an extension or a new built-in statement. Please consider capturing the reasoning for the path you chose in the draft itself.