diff --git a/referenced/plex-api-spec.yaml b/referenced/plex-api-spec.yaml
index 8489ff84..6c9b308a 100644
--- a/referenced/plex-api-spec.yaml
+++ b/referenced/plex-api-spec.yaml
@@ -108,3 +108,7 @@ tags:
   - name: Hubs
     description: |
       Hubs are a structured two-dimensional container for media, generally represented by multiple horizontal rows.
+  - name: Playlist
+    description: |
+      Playlists are ordered collections of media. They can be dumb (just a list of media) or smart (based on a media query, such as "all albums from 2017"). They can be organized in (optionally nesting) folders.
+      Retrieving a playlist, or its items, will trigger a refresh of its metadata. This may cause the duration and number of items to change.