diff --git a/zuul-results-summary/zuul-results-summary.js b/zuul-results-summary/zuul-results-summary.js
index 48e68fd..9e3f687 100644
--- a/zuul-results-summary/zuul-results-summary.js
+++ b/zuul-results-summary/zuul-results-summary.js
@@ -20,6 +20,10 @@
  * Tab contents
  */
 class ZuulSummaryStatusTab extends Polymer.Element {
+
+  /** Get properties
+   * @returns {dict} change and revision
+    */
   static get properties() {
     return {
       change: Object,
@@ -27,6 +31,9 @@
     };
   }
 
+  /** Get template
+   * @returns {Polymer.html} the template
+    */
   static get template() {
     return Polymer.html`
   <style>
@@ -96,11 +103,19 @@
   </template>`;
   }
 
+  /** Look for Zuul tag in message
+   * @param{ChangeMessageInfo} message
+   * @returns {bool} if this is a Zuul message or not
+   */
   _match_message_via_tag(message) {
     return (message.tag &&
                 message.tag.startsWith('autogenerated:zuul')) ? true : false;
   }
 
+  /** Look for 3rd-party CI messages via regex
+   * @param{ChangeMessageInfo} message
+   * @returns {bool} if this is a Zuul-ish message or not
+   */
   _match_message_via_regex(message) {
     // TODO: allow this to be passed in via config
     const authorRe = /^(?<author>.* CI|Zuul)/;
@@ -108,6 +123,10 @@
     return author ? true : false;
   }
 
+  /** Extract the status and pipeline from the message
+   * @param{ChangeMessageInfo} message
+   * @returns {list} status and pipeline
+   */
   _get_status_and_pipeline(message) {
     // Look for the full Zuul-3ish build status message, e.g.:
     //    Build succeeded (check pipeline).
@@ -129,6 +148,7 @@
     return [status, pipeline];
   }
 
+  /** ready function */
   ready() {
     super.ready();
 
@@ -244,9 +264,13 @@
  * Tab Header Element
  */
 class ZuulSummaryStatusTabHeader extends Polymer.Element {
-  static get template() {
-    return Polymer.html`Zuul Summary`;
-  }
+
+    /** Get template
+     * @returns {Polymer.html} the template
+     */
+    static get template() {
+        return Polymer.html`Zuul Summary`;
+    }
 }
 
 customElements.define('zuul-summary-status-tab-header',