diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -380,7 +380,7 @@
     'rsrc/js/application/files/behavior-icon-composer.js' => '8ef9ab58',
     'rsrc/js/application/files/behavior-launch-icon-composer.js' => '48086888',
     'rsrc/js/application/harbormaster/behavior-reorder-steps.js' => '957a7fde',
-    'rsrc/js/application/herald/HeraldRuleEditor.js' => '4f31d692',
+    'rsrc/js/application/herald/HeraldRuleEditor.js' => '4173dbd8',
     'rsrc/js/application/herald/PathTypeahead.js' => 'f7fc67ec',
     'rsrc/js/application/herald/herald-rule-editor.js' => '7ebaeed3',
     'rsrc/js/application/maniphest/behavior-batch-editor.js' => '391457d7',
@@ -523,7 +523,7 @@
     'font-source-sans-pro' => '225851dd',
     'global-drag-and-drop-css' => '697324ad',
     'herald-css' => '59d48f01',
-    'herald-rule-editor' => '4f31d692',
+    'herald-rule-editor' => '4173dbd8',
     'herald-test-css' => '2b7d0f54',
     'inline-comment-summary-css' => '14a91639',
     'javelin-aphlict' => '493665ee',
@@ -1088,6 +1088,19 @@
       0 => 'javelin-install',
       1 => 'javelin-event',
     ),
+    '4173dbd8' =>
+    array(
+      0 => 'multirow-row-manager',
+      1 => 'javelin-install',
+      2 => 'javelin-typeahead',
+      3 => 'javelin-util',
+      4 => 'javelin-dom',
+      5 => 'javelin-tokenizer',
+      6 => 'javelin-typeahead-preloaded-source',
+      7 => 'javelin-stratcom',
+      8 => 'javelin-json',
+      9 => 'phabricator-prefab',
+    ),
     '441f2137' =>
     array(
       0 => 'javelin-behavior',
@@ -1121,19 +1134,6 @@
       1 => 'javelin-dom',
       2 => 'javelin-reactor-dom',
     ),
-    '4f31d692' =>
-    array(
-      0 => 'multirow-row-manager',
-      1 => 'javelin-install',
-      2 => 'javelin-typeahead',
-      3 => 'javelin-util',
-      4 => 'javelin-dom',
-      5 => 'javelin-tokenizer',
-      6 => 'javelin-typeahead-preloaded-source',
-      7 => 'javelin-stratcom',
-      8 => 'javelin-json',
-      9 => 'phabricator-prefab',
-    ),
     '4f344388' =>
     array(
       0 => 'javelin-install',
diff --git a/src/applications/herald/adapter/HeraldAdapter.php b/src/applications/herald/adapter/HeraldAdapter.php
--- a/src/applications/herald/adapter/HeraldAdapter.php
+++ b/src/applications/herald/adapter/HeraldAdapter.php
@@ -40,6 +40,7 @@
   const FIELD_COMMITTER_RAW          = 'committer-raw';
   const FIELD_IS_NEW_OBJECT          = 'new-object';
   const FIELD_TASK_PRIORITY          = 'taskpriority';
+  const FIELD_ARCANIST_PROJECT       = 'arcanist-project';
 
   const CONDITION_CONTAINS        = 'contains';
   const CONDITION_NOT_CONTAINS    = '!contains';
@@ -91,6 +92,7 @@
   const VALUE_USER_OR_PROJECT = 'userorproject';
   const VALUE_BUILD_PLAN      = 'buildplan';
   const VALUE_TASK_PRIORITY   = 'taskpriority';
+  const VALUE_ARCANIST_PROJECT = 'arcanistprojects';
 
   private $contentSource;
   private $isNewObject;
@@ -237,6 +239,7 @@
       self::FIELD_COMMITTER_RAW => pht('Raw committer name'),
       self::FIELD_IS_NEW_OBJECT => pht('Is newly created?'),
       self::FIELD_TASK_PRIORITY => pht('Task priority'),
+      self::FIELD_ARCANIST_PROJECT => pht('Arcanist Project'),
     );
   }
 
@@ -289,6 +292,7 @@
       case self::FIELD_REVIEWER:
       case self::FIELD_PUSHER:
       case self::FIELD_TASK_PRIORITY:
+      case self::FIELD_ARCANIST_PROJECT:
         return array(
           self::CONDITION_IS_ANY,
           self::CONDITION_IS_NOT_ANY,
@@ -725,6 +729,8 @@
             return self::VALUE_REPOSITORY;
           case self::FIELD_TASK_PRIORITY:
             return self::VALUE_TASK_PRIORITY;
+          case self::FIELD_ARCANIST_PROJECT:
+            return self::VALUE_ARCANIST_PROJECT;
           default:
             return self::VALUE_USER;
         }
diff --git a/src/applications/herald/adapter/HeraldDifferentialRevisionAdapter.php b/src/applications/herald/adapter/HeraldDifferentialRevisionAdapter.php
--- a/src/applications/herald/adapter/HeraldDifferentialRevisionAdapter.php
+++ b/src/applications/herald/adapter/HeraldDifferentialRevisionAdapter.php
@@ -76,6 +76,7 @@
         self::FIELD_AFFECTED_PACKAGE,
         self::FIELD_AFFECTED_PACKAGE_OWNER,
         self::FIELD_IS_NEW_OBJECT,
+        self::FIELD_ARCANIST_PROJECT,
       ),
       parent::getFields());
   }
@@ -373,6 +374,8 @@
         $packages = $this->loadAffectedPackages();
         return PhabricatorOwnersOwner::loadAffiliatedUserPHIDs(
           mpull($packages, 'getID'));
+      case self::FIELD_ARCANIST_PROJECT:
+        return $this->revision->getArcanistProjectPHID();
     }
 
     return parent::getHeraldField($field);
diff --git a/src/applications/herald/controller/HeraldRuleController.php b/src/applications/herald/controller/HeraldRuleController.php
--- a/src/applications/herald/controller/HeraldRuleController.php
+++ b/src/applications/herald/controller/HeraldRuleController.php
@@ -593,6 +593,7 @@
         'userorproject' => '/typeahead/common/accountsorprojects/',
         'buildplan'     => '/typeahead/common/buildplans/',
         'taskpriority'  => '/typeahead/common/taskpriority/',
+        'arcanistprojects' => '/typeahead/common/arcanistprojects/',
       ),
       'markup' => $template,
     );
diff --git a/src/applications/herald/storage/HeraldRule.php b/src/applications/herald/storage/HeraldRule.php
--- a/src/applications/herald/storage/HeraldRule.php
+++ b/src/applications/herald/storage/HeraldRule.php
@@ -17,7 +17,7 @@
   protected $isDisabled = 0;
   protected $triggerObjectPHID;
 
-  protected $configVersion = 31;
+  protected $configVersion = 32;
 
   // phids for which this rule has been applied
   private $ruleApplied = self::ATTACHABLE;
diff --git a/webroot/rsrc/js/application/herald/HeraldRuleEditor.js b/webroot/rsrc/js/application/herald/HeraldRuleEditor.js
--- a/webroot/rsrc/js/application/herald/HeraldRuleEditor.js
+++ b/webroot/rsrc/js/application/herald/HeraldRuleEditor.js
@@ -223,6 +223,7 @@
         case 'userorproject':
         case 'buildplan':
         case 'taskpriority':
+        case 'arcanistprojects':
           var tokenizer = this._newTokenizer(type);
           input = tokenizer[0];
           get_fn = tokenizer[1];