diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index f52d57350c..6dcb395cbb 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -629,6 +629,7 @@ phutil_register_library_map(array(
     'HeraldInvalidActionException' => 'applications/herald/engine/exception/HeraldInvalidActionException.php',
     'HeraldInvalidConditionException' => 'applications/herald/engine/exception/HeraldInvalidConditionException.php',
     'HeraldInvalidFieldException' => 'applications/herald/engine/exception/HeraldInvalidFieldException.php',
+    'HeraldManiphestTaskAdapter' => 'applications/herald/adapter/HeraldManiphestTaskAdapter.php',
     'HeraldNewController' => 'applications/herald/controller/HeraldNewController.php',
     'HeraldObjectTranscript' => 'applications/herald/storage/transcript/HeraldObjectTranscript.php',
     'HeraldPHIDTypeRule' => 'applications/herald/phid/HeraldPHIDTypeRule.php',
@@ -2692,6 +2693,7 @@ phutil_register_library_map(array(
     'HeraldInvalidActionException' => 'Exception',
     'HeraldInvalidConditionException' => 'Exception',
     'HeraldInvalidFieldException' => 'Exception',
+    'HeraldManiphestTaskAdapter' => 'HeraldAdapter',
     'HeraldNewController' => 'HeraldController',
     'HeraldPHIDTypeRule' => 'PhabricatorPHIDType',
     'HeraldPholioMockAdapter' => 'HeraldAdapter',
diff --git a/src/applications/herald/adapter/HeraldManiphestTaskAdapter.php b/src/applications/herald/adapter/HeraldManiphestTaskAdapter.php
new file mode 100644
index 0000000000..5f0c83440e
--- /dev/null
+++ b/src/applications/herald/adapter/HeraldManiphestTaskAdapter.php
@@ -0,0 +1,114 @@
+<?php
+
+/**
+ * @group herald
+ */
+final class HeraldManiphestTaskAdapter extends HeraldAdapter {
+
+  private $task;
+  private $ccPHIDs = array();
+
+  public function setTask(ManiphestTask $task) {
+    $this->task = $task;
+    return $this;
+  }
+  public function getTask() {
+    return $this->task;
+  }
+
+  private function setCcPHIDs(array $cc_phids) {
+    $this->ccPHIDs = $cc_phids;
+    return $this;
+  }
+  public function getCcPHIDs() {
+    return $this->ccPHIDs;
+  }
+
+  public function getAdapterContentName() {
+    return pht('Maniphest Tasks');
+  }
+
+  public function getFields() {
+    return array(
+      self::FIELD_TITLE,
+      self::FIELD_BODY,
+      self::FIELD_AUTHOR,
+      self::FIELD_CC,
+    );
+  }
+
+  public function getActions($rule_type) {
+    switch ($rule_type) {
+      case HeraldRuleTypeConfig::RULE_TYPE_GLOBAL:
+        return array(
+          self::ACTION_ADD_CC,
+          self::ACTION_NOTHING,
+        );
+      case HeraldRuleTypeConfig::RULE_TYPE_PERSONAL:
+        return array(
+          self::ACTION_ADD_CC,
+          self::ACTION_FLAG,
+          self::ACTION_NOTHING,
+        );
+    }
+  }
+
+  public function getPHID() {
+    return $this->getTask()->getPHID();
+  }
+
+  public function getHeraldName() {
+    return 'T'.$this->getTask()->getID();
+  }
+
+  public function getHeraldField($field) {
+    switch ($field) {
+      case self::FIELD_TITLE:
+        return $this->getTask()->getTitle();
+      case self::FIELD_BODY:
+        return $this->getTask()->getDescription();
+      case self::FIELD_AUTHOR:
+        return $this->getTask()->getAuthorPHID();
+      case self::FIELD_CC:
+        return $this->getTask()->getCCPHIDs();
+    }
+
+    return parent::getHeraldField($field);
+  }
+
+  public function applyHeraldEffects(array $effects) {
+    assert_instances_of($effects, 'HeraldEffect');
+
+    $result = array();
+    foreach ($effects as $effect) {
+      $action = $effect->getAction();
+      switch ($action) {
+        case self::ACTION_NOTHING:
+          $result[] = new HeraldApplyTranscript(
+            $effect,
+            true,
+            pht('Great success at doing nothing.'));
+          break;
+        case self::ACTION_ADD_CC:
+          $add_cc = array();
+          foreach ($effect->getTarget() as $phid) {
+            $add_cc[$phid] = true;
+          }
+          $this->setCcPHIDs(array_keys($add_cc));
+          $result[] = new HeraldApplyTranscript(
+            $effect,
+            true,
+            pht('Added address to cc list.'));
+          break;
+        case self::ACTION_FLAG:
+          $result[] = parent::applyFlagEffect(
+            $effect,
+            $this->getTask()->getPHID());
+          break;
+        default:
+          throw new Exception("No rules to handle action '{$action}'.");
+      }
+    }
+    return $result;
+  }
+}
diff --git a/src/applications/maniphest/editor/ManiphestTransactionEditorPro.php b/src/applications/maniphest/editor/ManiphestTransactionEditorPro.php
index 377d693f08..65f9888991 100644
--- a/src/applications/maniphest/editor/ManiphestTransactionEditorPro.php
+++ b/src/applications/maniphest/editor/ManiphestTransactionEditorPro.php
@@ -189,4 +189,30 @@ final class ManiphestTransactionEditorPro
     return true;
   }
 
+  protected function supportsHerald() {
+    return true;
+  }
+
+  protected function buildHeraldAdapter(
+    PhabricatorLiskDAO $object,
+    array $xactions) {
+
+    return id(new HeraldManiphestTaskAdapter())
+      ->setTask($object);
+  }
+
+  protected function didApplyHeraldRules(
+    PhabricatorLiskDAO $object,
+    HeraldAdapter $adapter,
+    HeraldTranscript $transcript) {
+
+    $cc_phids = $adapter->getCcPHIDs();
+    if ($cc_phids) {
+      $existing_cc = $object->getCCPHIDs();
+      $new_cc = array_unique(array_merge($cc_phids, $existing_cc));
+      $object->setCCPHIDs($new_cc);
+      $object->save();
+    }
+  }
+
 }