diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -528,7 +528,7 @@
     'rsrc/js/phui/behavior-phui-tab-group.js' => '0a0b10e9',
     'rsrc/js/phuix/PHUIXActionListView.js' => 'b5c256b8',
     'rsrc/js/phuix/PHUIXActionView.js' => '442efd08',
-    'rsrc/js/phuix/PHUIXAutocomplete.js' => 'bb19ed2c',
+    'rsrc/js/phuix/PHUIXAutocomplete.js' => '623a766b',
     'rsrc/js/phuix/PHUIXButtonView.js' => '8a91e1ac',
     'rsrc/js/phuix/PHUIXDropdownMenu.js' => '04b2ae03',
     'rsrc/js/phuix/PHUIXExample.js' => '68af71ca',
@@ -881,7 +881,7 @@
     'phui-workpanel-view-css' => 'a3a63478',
     'phuix-action-list-view' => 'b5c256b8',
     'phuix-action-view' => '442efd08',
-    'phuix-autocomplete' => 'bb19ed2c',
+    'phuix-autocomplete' => '623a766b',
     'phuix-button-view' => '8a91e1ac',
     'phuix-dropdown-menu' => '04b2ae03',
     'phuix-form-control-view' => '16ad6224',
@@ -1407,6 +1407,12 @@
       'javelin-magical-init',
       'javelin-util',
     ),
+    '623a766b' => array(
+      'javelin-install',
+      'javelin-dom',
+      'phuix-icon-view',
+      'phabricator-prefab',
+    ),
     '628f59de' => array(
       'phui-oi-list-view-css',
     ),
@@ -1868,12 +1874,6 @@
       'javelin-uri',
       'phabricator-notification',
     ),
-    'bb19ed2c' => array(
-      'javelin-install',
-      'javelin-dom',
-      'phuix-icon-view',
-      'phabricator-prefab',
-    ),
     'bcaccd64' => array(
       'javelin-behavior',
       'javelin-behavior-device',
diff --git a/src/applications/phurl/typeahead/PhabricatorPhurlURLDatasource.php b/src/applications/phurl/typeahead/PhabricatorPhurlURLDatasource.php
--- a/src/applications/phurl/typeahead/PhabricatorPhurlURLDatasource.php
+++ b/src/applications/phurl/typeahead/PhabricatorPhurlURLDatasource.php
@@ -24,6 +24,7 @@
         ->setDisplayName($url->getName())
         ->setName($url->getName()." ".$url->getAlias())
         ->setPHID($url->getPHID())
+        ->setAutocomplete('(('.$url->getAlias().'))')
         ->addAttribute($url->getLongURL());
 
       $results[] = $result;
diff --git a/src/view/form/control/PhabricatorRemarkupControl.php b/src/view/form/control/PhabricatorRemarkupControl.php
--- a/src/view/form/control/PhabricatorRemarkupControl.php
+++ b/src/view/form/control/PhabricatorRemarkupControl.php
@@ -73,6 +73,7 @@
         ));
 
     $phriction_datasource = new PhrictionDocumentDatasource();
+    $phurl_datasource = new PhabricatorPhurlURLDatasource();
 
     Javelin::initBehavior(
       'phabricator-remarkup-assist',
@@ -130,7 +131,17 @@
               '|',
               ']',
             ),
-            'prefix' => '^\\[*',
+            'prefix' => '^\\[',
+          ),
+          40 => array( // "("
+            'datasourceURI' => $phurl_datasource->getDatasourceURI(),
+            'headerIcon' => 'fa-compress',
+            'headerText' => pht('Find Phurl:'),
+            'hintText' => $phurl_datasource->getPlaceholderText(),
+            'cancel' => array(
+              ')',
+            ),
+            'prefix' => '^\\(',
           ),
         ),
       ));
diff --git a/webroot/rsrc/js/phuix/PHUIXAutocomplete.js b/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
--- a/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
+++ b/webroot/rsrc/js/phuix/PHUIXAutocomplete.js
@@ -107,6 +107,12 @@
         prior = '<start>';
       }
 
+      // If this is a repeating sequence and the previous character is the
+      // same as the one the user just typed, like "((", don't reactivate.
+      if (prior === String.fromCharCode(code)) {
+        return;
+      }
+
       switch (prior) {
         case '<start>':
         case ' ':