Index: src/applications/maniphest/search/ManiphestSearchIndexer.php
===================================================================
--- src/applications/maniphest/search/ManiphestSearchIndexer.php
+++ src/applications/maniphest/search/ManiphestSearchIndexer.php
@@ -81,6 +81,8 @@
         time());
     }
 
+    $this->indexCustomFields($doc, $task);
+
     return $doc;
   }
 }
Index: src/applications/people/search/PhabricatorUserSearchIndexer.php
===================================================================
--- src/applications/people/search/PhabricatorUserSearchIndexer.php
+++ src/applications/people/search/PhabricatorUserSearchIndexer.php
@@ -17,9 +17,6 @@
     $doc->setDocumentCreated($user->getDateCreated());
     $doc->setDocumentModified($user->getDateModified());
 
-    // TODO: Index the blurbs from their profile or something? Probably not
-    // actually useful...
-
     $doc->addRelationship(
       $user->isUserActivated()
         ? PhabricatorSearchRelationship::RELATIONSHIP_OPEN
@@ -28,6 +25,8 @@
       PhabricatorPeoplePHIDTypeUser::TYPECONST,
       time());
 
+    $this->indexCustomFields($doc, $user);
+
     return $doc;
   }
 }
Index: src/applications/project/search/PhabricatorProjectSearchIndexer.php
===================================================================
--- src/applications/project/search/PhabricatorProjectSearchIndexer.php
+++ src/applications/project/search/PhabricatorProjectSearchIndexer.php
@@ -17,6 +17,9 @@
     $doc->setDocumentCreated($project->getDateCreated());
     $doc->setDocumentModified($project->getDateModified());
 
+    $this->indexSubscribers($doc);
+    $this->indexCustomFields($doc, $project);
+
     // NOTE: This could be more full-featured, but for now we're mostly
     // interested in the side effects of indexing.
 
Index: src/applications/search/index/PhabricatorSearchDocumentIndexer.php
===================================================================
--- src/applications/search/index/PhabricatorSearchDocumentIndexer.php
+++ src/applications/search/index/PhabricatorSearchDocumentIndexer.php
@@ -106,6 +106,29 @@
     }
   }
 
+  protected function indexCustomFields(
+    PhabricatorSearchAbstractDocument $doc,
+    PhabricatorCustomFieldInterface $object) {
+
+    // Rebuild the ApplicationSearch indexes. These are internal and not part of
+    // the fulltext search, but putting them in this workflow allows users to
+    // use the same tools to rebuild the indexes, which is easy to understand.
+
+    $field_list = PhabricatorCustomField::getObjectFields(
+      $object,
+      PhabricatorCustomField::ROLE_APPLICATIONSEARCH);
+
+    $field_list->setViewer($this->getViewer());
+    $field_list->readFieldsFromStorage($object);
+    $field_list->rebuildIndexes($object);
+
+    // We could also allow fields to provide fulltext content, and index it
+    // here on the document. No one has asked for this yet, though, and the
+    // existing "search" key isn't a good fit to interpret to mean we should
+    // index stuff here, since it can be set on a lot of fields which don't
+    // contain anything resembling fulltext.
+  }
+
   private function dispatchDidUpdateIndexEvent(
     $phid,
     PhabricatorSearchAbstractDocument $document) {
Index: src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
===================================================================
--- src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
+++ src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
@@ -591,6 +591,11 @@
       // need it to be up to date once the next page loads, but if we don't go
       // there we we could move it into search once search moves to the daemons.
 
+      // It now happens in the search indexer as well, but the search indexer is
+      // always daemonized, so the logic above still potentially holds. We could
+      // possibly get rid of this. The major motivation for putting it in the
+      // indexer was to enable reindexing to work.
+
       $fields = PhabricatorCustomField::getObjectFields(
         $object,
         PhabricatorCustomField::ROLE_APPLICATIONSEARCH);