diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 8bb0db6cf6..b563d1ae89 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -704,7 +704,6 @@ phutil_register_library_map(array(
     'LiskIsolationTestDAOException' => 'infrastructure/storage/lisk/__tests__/LiskIsolationTestDAOException.php',
     'LiskMigrationIterator' => 'infrastructure/storage/lisk/LiskMigrationIterator.php',
     'LiskRawMigrationIterator' => 'infrastructure/storage/lisk/LiskRawMigrationIterator.php',
-    'ManiphestAction' => 'applications/maniphest/constants/ManiphestAction.php',
     'ManiphestBatchEditController' => 'applications/maniphest/controller/ManiphestBatchEditController.php',
     'ManiphestCapabilityDefaultEdit' => 'applications/maniphest/capability/ManiphestCapabilityDefaultEdit.php',
     'ManiphestCapabilityDefaultView' => 'applications/maniphest/capability/ManiphestCapabilityDefaultView.php',
@@ -1197,7 +1196,6 @@ phutil_register_library_map(array(
     'PhabricatorFeedStoryData' => 'applications/feed/storage/PhabricatorFeedStoryData.php',
     'PhabricatorFeedStoryDifferential' => 'applications/feed/story/PhabricatorFeedStoryDifferential.php',
     'PhabricatorFeedStoryDifferentialAggregate' => 'applications/feed/story/PhabricatorFeedStoryDifferentialAggregate.php',
-    'PhabricatorFeedStoryManiphest' => 'applications/feed/story/PhabricatorFeedStoryManiphest.php',
     'PhabricatorFeedStoryManiphestAggregate' => 'applications/feed/story/PhabricatorFeedStoryManiphestAggregate.php',
     'PhabricatorFeedStoryNotification' => 'applications/notification/storage/PhabricatorFeedStoryNotification.php',
     'PhabricatorFeedStoryPhriction' => 'applications/feed/story/PhabricatorFeedStoryPhriction.php',
@@ -2839,7 +2837,6 @@ phutil_register_library_map(array(
     'LiskIsolationTestDAOException' => 'Exception',
     'LiskMigrationIterator' => 'PhutilBufferedIterator',
     'LiskRawMigrationIterator' => 'PhutilBufferedIterator',
-    'ManiphestAction' => 'ManiphestConstants',
     'ManiphestBatchEditController' => 'ManiphestController',
     'ManiphestCapabilityDefaultEdit' => 'PhabricatorPolicyCapability',
     'ManiphestCapabilityDefaultView' => 'PhabricatorPolicyCapability',
@@ -3381,7 +3378,6 @@ phutil_register_library_map(array(
     'PhabricatorFeedStoryData' => 'PhabricatorFeedDAO',
     'PhabricatorFeedStoryDifferential' => 'PhabricatorFeedStory',
     'PhabricatorFeedStoryDifferentialAggregate' => 'PhabricatorFeedStoryAggregate',
-    'PhabricatorFeedStoryManiphest' => 'PhabricatorFeedStory',
     'PhabricatorFeedStoryManiphestAggregate' => 'PhabricatorFeedStoryAggregate',
     'PhabricatorFeedStoryNotification' => 'PhabricatorFeedDAO',
     'PhabricatorFeedStoryPhriction' => 'PhabricatorFeedStory',
diff --git a/src/applications/feed/story/PhabricatorFeedStoryManiphest.php b/src/applications/feed/story/PhabricatorFeedStoryManiphest.php
deleted file mode 100644
index 7967e8a655..0000000000
--- a/src/applications/feed/story/PhabricatorFeedStoryManiphest.php
+++ /dev/null
@@ -1,143 +0,0 @@
-<?php
-
-final class PhabricatorFeedStoryManiphest
-  extends PhabricatorFeedStory {
-
-  public function getPrimaryObjectPHID() {
-    return $this->getValue('taskPHID');
-  }
-
-  public function getRequiredHandlePHIDs() {
-    return array(
-      $this->getValue('ownerPHID'),
-    );
-  }
-
-  public function renderView() {
-    $data = $this->getStoryData();
-
-    $view = $this->newStoryView();
-    $view->setAppIcon('maniphest-dark');
-
-    $line = $this->getLineForData($data);
-    $view->setTitle($line);
-
-    $action = $data->getValue('action');
-
-    $view->setImage($this->getHandle($data->getAuthorPHID())->getImageURI());
-
-    switch ($action) {
-      case ManiphestAction::ACTION_COMMENT:
-        // I'm just fetching the comments here
-        // Don't repeat this at home!
-        $comments = $data->getValue('comments');
-        $content = $this->renderSummary($comments);
-        $view->appendChild($content);
-        break;
-      case ManiphestAction::ACTION_CREATE:
-        $content = $this->renderSummary($data->getValue('description'));
-        $view->appendChild($content);
-        break;
-    }
-
-    $href = $this->getHandle($data->getValue('taskPHID'))->getURI();
-    $view->setHref($href);
-
-    return $view;
-  }
-
-  private function getLineForData($data) {
-    $action = $data->getValue('action');
-
-    $actor_phid = $data->getAuthorPHID();
-    $actor_link = $this->linkTo($actor_phid);
-
-    $task_phid = $data->getValue('taskPHID');
-    $task_link = $this->linkTo($task_phid);
-
-    $owner_phid = $data->getValue('ownerPHID');
-    $owner_link = $this->linkTo($owner_phid);
-
-    $verb = ManiphestAction::getActionPastTenseVerb($action);
-
-    switch ($action) {
-      case ManiphestAction::ACTION_ASSIGN:
-      case ManiphestAction::ACTION_REASSIGN:
-        if ($owner_phid) {
-          if ($owner_phid == $actor_phid) {
-            $one_line = hsprintf('%s claimed %s', $actor_link, $task_link);
-          } else {
-            $one_line = hsprintf('%s %s %s to %s',
-              $actor_link,
-              $verb,
-              $owner_link,
-              $task_link);
-          }
-        } else {
-          $one_line = hsprintf(
-            '%s placed %s up for grabs',
-            $actor_link,
-            $task_link);
-        }
-        break;
-      default:
-        $one_line = hsprintf('%s %s %s', $actor_link, $verb, $task_link);
-        break;
-    }
-
-    return $one_line;
-  }
-
-  public function renderText() {
-    $actor_phid = $this->getAuthorPHID();
-    $author_name = $this->getHandle($actor_phid)->getLinkName();
-
-    $owner_phid = $this->getValue('ownerPHID');
-    $owner_name = $this->getHandle($owner_phid)->getLinkName();
-
-    $task_phid = $this->getPrimaryObjectPHID();
-    $task_handle = $this->getHandle($task_phid);
-    $task_title = $task_handle->getLinkName();
-    $task_uri = PhabricatorEnv::getURI($task_handle->getURI());
-
-    $action = $this->getValue('action');
-    $verb = ManiphestAction::getActionPastTenseVerb($action);
-
-    switch ($action) {
-      case ManiphestAction::ACTION_ASSIGN:
-      case ManiphestAction::ACTION_REASSIGN:
-        if ($owner_phid) {
-          if ($owner_phid == $actor_phid) {
-            $text = "{$author_name} claimed {$task_title}";
-          } else {
-            $text = "{$author_name} {$verb} {$task_title} to {$owner_name}";
-          }
-        } else {
-          $text = "{$author_name} placed {$task_title} up for grabs";
-        }
-        break;
-      default:
-        $text = "{$author_name} {$verb} {$task_title}";
-        break;
-    }
-
-    $text .= " {$task_uri}";
-
-    return $text;
-  }
-
-  public function getNotificationAggregations() {
-    $class = get_class($this);
-    $phid  = $this->getStoryData()->getValue('taskPHID');
-    $read  = (int)$this->getHasViewed();
-
-    // Don't aggregate updates separated by more than 2 hours.
-    $block = (int)($this->getEpoch() / (60 * 60 * 2));
-
-    return array(
-      "{$class}:{$phid}:{$read}:{$block}"
-        => 'PhabricatorFeedStoryManiphestAggregate',
-    );
-  }
-
-}
diff --git a/src/applications/maniphest/constants/ManiphestAction.php b/src/applications/maniphest/constants/ManiphestAction.php
deleted file mode 100644
index f45a47088a..0000000000
--- a/src/applications/maniphest/constants/ManiphestAction.php
+++ /dev/null
@@ -1,86 +0,0 @@
-<?php
-
-/**
- * @group maniphest
- */
-final class ManiphestAction extends ManiphestConstants {
-  /* These actions must be determined when the story
-     is generated and thus are new */
-  const ACTION_CREATE      = 'create';
-  const ACTION_REOPEN      = 'reopen';
-  const ACTION_CLOSE       = 'close';
-  const ACTION_UPDATE      = 'update';
-  const ACTION_ASSIGN      = 'assign';
-
-  /* these actions are determined sufficiently by the transaction
-     type and thus we use them here*/
-  const ACTION_COMMENT     = PhabricatorTransactions::TYPE_COMMENT;
-  const ACTION_CC          = ManiphestTransaction::TYPE_CCS;
-  const ACTION_PRIORITY    = ManiphestTransaction::TYPE_PRIORITY;
-  const ACTION_PROJECT     = ManiphestTransaction::TYPE_PROJECTS;
-  const ACTION_TITLE       = ManiphestTransaction::TYPE_TITLE;
-  const ACTION_DESCRIPTION = ManiphestTransaction::TYPE_DESCRIPTION;
-  const ACTION_REASSIGN    = ManiphestTransaction::TYPE_OWNER;
-  const ACTION_ATTACH      = ManiphestTransaction::TYPE_ATTACH;
-  const ACTION_EDGE        = ManiphestTransaction::TYPE_EDGE;
-  const ACTION_AUXILIARY   = PhabricatorTransactions::TYPE_CUSTOMFIELD;
-
-  public static function getActionPastTenseVerb($action) {
-    static $map = array(
-      self::ACTION_CREATE      => 'created',
-      self::ACTION_CLOSE       => 'closed',
-      self::ACTION_UPDATE      => 'updated',
-      self::ACTION_ASSIGN      => 'assigned',
-      self::ACTION_REASSIGN    => 'reassigned',
-      self::ACTION_COMMENT     => 'commented on',
-      self::ACTION_CC          => 'updated cc\'s of',
-      self::ACTION_PRIORITY    => 'changed the priority of',
-      self::ACTION_PROJECT     => 'modified projects of',
-      self::ACTION_TITLE       => 'updated title of',
-      self::ACTION_DESCRIPTION => 'updated description of',
-      self::ACTION_ATTACH      => 'attached something to',
-      self::ACTION_EDGE        => 'changed related objects of',
-      self::ACTION_REOPEN      => 'reopened',
-      self::ACTION_AUXILIARY   => 'updated an auxiliary field of',
-    );
-
-    return idx($map, $action, "brazenly {$action}'d");
-  }
-
-  /**
-   * If a group of transactions contain several actions, select the "strongest"
-   * action. For instance, a close is stronger than an update, because we want
-   * to render "User U closed task T" instead of "User U updated task T" when
-   * a user closes a task.
-   */
-  public static function selectStrongestAction(array $actions) {
-    static $strengths = array(
-      self::ACTION_AUXILIARY   => -1,
-      self::ACTION_UPDATE      => 0,
-      self::ACTION_CC          => 1,
-      self::ACTION_PROJECT     => 2,
-      self::ACTION_DESCRIPTION => 3,
-      self::ACTION_TITLE       => 4,
-      self::ACTION_ATTACH      => 5,
-      self::ACTION_EDGE        => 5,
-      self::ACTION_COMMENT     => 6,
-      self::ACTION_PRIORITY    => 7,
-      self::ACTION_REASSIGN    => 8,
-      self::ACTION_ASSIGN      => 9,
-      self::ACTION_REOPEN      => 10,
-      self::ACTION_CREATE      => 11,
-      self::ACTION_CLOSE       => 12,
-    );
-
-    $strongest = null;
-    $strength = -1;
-    foreach ($actions as $action) {
-      if ($strengths[$action] > $strength) {
-        $strength = $strengths[$action];
-        $strongest = $action;
-      }
-    }
-    return $strongest;
-  }
-
-}