diff --git a/src/__celerity_resource_map__.php b/src/__celerity_resource_map__.php
index f3a0c56218..350005420a 100644
--- a/src/__celerity_resource_map__.php
+++ b/src/__celerity_resource_map__.php
@@ -1332,6 +1332,18 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/core/behavior-keyboard-shortcuts.js',
   ),
+  'javelin-behavior-phabricator-notification-example' =>
+  array(
+    'uri' => '/res/0b8fadf5/rsrc/js/application/uiexample/notification-example.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'phabricator-notification',
+      1 => 'javelin-stratcom',
+      2 => 'javelin-behavior',
+    ),
+    'disk' => '/rsrc/js/application/uiexample/notification-example.js',
+  ),
   'javelin-behavior-phabricator-object-selector' =>
   array(
     'uri' => '/res/0c4b0d82/rsrc/js/application/core/behavior-object-selector.js',
@@ -2146,6 +2158,27 @@ celerity_register_resource_map(array(
     ),
     'disk' => '/rsrc/js/application/core/DropdownMenuItem.js',
   ),
+  'phabricator-notification' =>
+  array(
+    'uri' => '/res/8497d4b2/rsrc/js/application/core/Notification.js',
+    'type' => 'js',
+    'requires' =>
+    array(
+      0 => 'javelin-install',
+      1 => 'javelin-dom',
+      2 => 'javelin-stratcom',
+    ),
+    'disk' => '/rsrc/js/application/core/Notification.js',
+  ),
+  'phabricator-notification-css' =>
+  array(
+    'uri' => '/res/423a14d1/rsrc/css/aphront/notification.css',
+    'type' => 'css',
+    'requires' =>
+    array(
+    ),
+    'disk' => '/rsrc/css/aphront/notification.css',
+  ),
   'phabricator-object-selector-css' =>
   array(
     'uri' => '/res/7eb4c705/rsrc/css/application/objectselector/object-selector.css',
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 1ef665b6eb..04db725959 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -966,6 +966,7 @@ phutil_register_library_map(array(
     'PhabricatorUIExampleController' => 'applications/uiexample/controller/PhabricatorUIExampleController.php',
     'PhabricatorUIExampleRenderController' => 'applications/uiexample/controller/PhabricatorUIExampleRenderController.php',
     'PhabricatorUIListFilterExample' => 'applications/uiexample/examples/PhabricatorUIListFilterExample.php',
+    'PhabricatorUINotificationExample' => 'applications/uiexample/examples/PhabricatorUINotificationExample.php',
     'PhabricatorUIPagerExample' => 'applications/uiexample/examples/PhabricatorUIPagerExample.php',
     'PhabricatorUITooltipExample' => 'applications/uiexample/examples/PhabricatorUITooltipExample.php',
     'PhabricatorUnitsTestCase' => 'view/__tests__/PhabricatorUnitsTestCase.php',
@@ -1900,6 +1901,7 @@ phutil_register_library_map(array(
     'PhabricatorUIExampleController' => 'PhabricatorController',
     'PhabricatorUIExampleRenderController' => 'PhabricatorUIExampleController',
     'PhabricatorUIListFilterExample' => 'PhabricatorUIExample',
+    'PhabricatorUINotificationExample' => 'PhabricatorUIExample',
     'PhabricatorUIPagerExample' => 'PhabricatorUIExample',
     'PhabricatorUITooltipExample' => 'PhabricatorUIExample',
     'PhabricatorUnitsTestCase' => 'PhabricatorTestCase',
diff --git a/src/applications/uiexample/examples/PhabricatorUINotificationExample.php b/src/applications/uiexample/examples/PhabricatorUINotificationExample.php
new file mode 100644
index 0000000000..fd5082b62e
--- /dev/null
+++ b/src/applications/uiexample/examples/PhabricatorUINotificationExample.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class PhabricatorUINotificationExample extends PhabricatorUIExample {
+
+  public function getName() {
+    return 'Notifications';
+  }
+
+  public function getDescription() {
+    return 'Use <tt>JX.Notification</tt> to create notifications.';
+  }
+
+  public function renderExample() {
+
+    require_celerity_resource('phabricator-notification-css');
+    Javelin::initBehavior('phabricator-notification-example');
+
+    $content = javelin_render_tag(
+      'a',
+      array(
+        'sigil' => 'notification-example',
+        'class' => 'button green',
+      ),
+      'Show Notification');
+
+    $content = '<div style="padding: 1em 3em;">'.$content.'</content>';
+
+    return $content;
+  }
+}
diff --git a/src/infrastructure/lint/linter/PhabricatorJavelinLinter.php b/src/infrastructure/lint/linter/PhabricatorJavelinLinter.php
index 75a0588d26..1a3e536875 100644
--- a/src/infrastructure/lint/linter/PhabricatorJavelinLinter.php
+++ b/src/infrastructure/lint/linter/PhabricatorJavelinLinter.php
@@ -31,6 +31,9 @@ final class PhabricatorJavelinLinter extends ArcanistLinter {
 
   public function willLintPaths(array $paths) {
 
+    $root = dirname(phutil_get_library_root('phabricator'));
+    require_once $root.'/scripts/__init_script__.php';
+
     if ($this->haveSymbolsBinary === null) {
       $binary = $this->getSymbolsBinaryPath();
       $this->haveSymbolsBinary = Filesystem::pathExists($binary);
diff --git a/webroot/rsrc/css/aphront/notification.css b/webroot/rsrc/css/aphront/notification.css
new file mode 100644
index 0000000000..0ae4826a18
--- /dev/null
+++ b/webroot/rsrc/css/aphront/notification.css
@@ -0,0 +1,24 @@
+/**
+ * @provides phabricator-notification-css
+ */
+
+.jx-notification-container {
+  position: fixed;
+
+  bottom: 24px;
+  left: 24px;
+  width: 240px;
+  padding: 8px 16px;
+
+  font-size: 11px;
+  overflow: hidden;
+
+  background: #f3f6ff;
+  color: #444444;
+  border: 1px solid #afbfcf;
+
+  cursor: pointer;
+
+  border-radius: 3px;
+  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.25);
+}
diff --git a/webroot/rsrc/js/application/core/Notification.js b/webroot/rsrc/js/application/core/Notification.js
new file mode 100644
index 0000000000..421df0520a
--- /dev/null
+++ b/webroot/rsrc/js/application/core/Notification.js
@@ -0,0 +1,106 @@
+/**
+ * @requires javelin-install
+ *           javelin-dom
+ *           javelin-stratcom
+ * @provides phabricator-notification
+ * @javelin
+ */
+
+/**
+ * Show a notification. Usage:
+ *
+ *   var n = new JX.Notification()
+ *     .setContent('click me!');
+ *   n.listen('activate', function(e) { alert('you clicked!'); });
+ *   n.show();
+ *
+ */
+JX.install('Notification', {
+
+  events : ['activate', 'close'],
+
+  members : {
+    show : function() {
+      var self = JX.Notification;
+
+      self.close();
+      self._installListener();
+      self._active = this;
+
+      var container = JX.$N(
+        'div',
+        {
+          className: 'jx-notification-container',
+          sigil: 'jx-notification'
+        },
+        this.getContent());
+      document.body.appendChild(container);
+
+      self._container = container;
+
+      if (this.getDuration()) {
+        self._timeout = setTimeout(self.close, this.getDuration());
+      }
+    }
+  },
+
+  properties : {
+    content : null,
+
+    /**
+     * Duration before the notification fades away, in milliseconds. If set to
+     * 0, the notification persists until dismissed.
+     *
+     * @param int Notification duration, in milliseconds.
+     */
+    duration : 12000
+  },
+
+  statics : {
+    _container : null,
+    _listening : false,
+    _active : null,
+    _installListener : function() {
+      var self = JX.Notification;
+
+      if (self._listening) {
+        return;
+      } else {
+        self._listening = true;
+      }
+
+      JX.Stratcom.listen(
+        'click',
+        'jx-notification',
+        function(e) {
+          // NOTE: Don't kill the event since the user might have clicked a
+          // link, and we want to follow the link if they did. Istead, invoke
+          // the activate event for the active notification and dismiss it if it
+          // isn't handled.
+
+          var activation = self._active.invoke('activate');
+          if (activation.getPrevented()) {
+            return;
+          }
+
+          self.close();
+        });
+    },
+    close : function() {
+      var self = JX.Notification;
+
+      if (self._container) {
+        JX.DOM.remove(self._container);
+        self._container = null;
+
+        self._active.invoke('close');
+        self._active = null;
+      }
+
+      self._timeout && clearTimeout(self._timeout);
+      self._timeout = null;
+    }
+  }
+
+});
+
diff --git a/webroot/rsrc/js/application/uiexample/notification-example.js b/webroot/rsrc/js/application/uiexample/notification-example.js
new file mode 100644
index 0000000000..1563fa30ed
--- /dev/null
+++ b/webroot/rsrc/js/application/uiexample/notification-example.js
@@ -0,0 +1,29 @@
+/**
+ * @requires phabricator-notification
+ *           javelin-stratcom
+ *           javelin-behavior
+ * @provides javelin-behavior-phabricator-notification-example
+ */
+
+JX.behavior('phabricator-notification-example', function(config) {
+  JX.Stratcom.listen(
+    'click',
+    'notification-example',
+    function(e) {
+      e.kill();
+
+      var notification = new JX.Notification()
+        .setContent('It is ' + new Date().toString());
+
+      notification.listen(
+        'activate',
+        function(e) {
+          if (!confirm("Close notification?")) {
+            e.kill();
+          }
+        });
+
+      notification.show()
+    });
+
+});