diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 86725c3..9f313ec 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1,149 +1,153 @@
 <?php
 
 /**
  * This file is automatically generated. Use 'arc liberate' to rebuild it.
  *
  * @generated
  * @phutil-library-version 2
  */
 phutil_register_library_map(array(
   '__library_version__' => 2,
   'class' => array(
     'SemiStructuredBaseController' => 'controller/SemiStructuredBaseController.php',
     'SemiStructuredDAO' => 'storage/SemiStructuredDAO.php',
     'SemiStructuredDataApplication' => 'application/SemiStructuredDataApplication.php',
     'SemiStructuredInstanceConfiguredCustomField' => 'customfield/SemiStructuredInstanceConfiguredCustomField.php',
     'SemiStructuredInstanceConfiguredCustomFieldStorage' => 'storage/SemiStructuredInstanceConfiguredCustomFieldStorage.php',
     'SemiStructuredInstanceCustomField' => 'customfield/SemiStructuredInstanceCustomField.php',
     'SemiStructuredInstanceCustomFieldNumericIndex' => 'storage/SemiStructuredInstanceCustomFieldNumericIndex.php',
     'SemiStructuredInstanceCustomFieldStringIndex' => 'storage/SemiStructuredInstanceCustomFieldStringIndex.php',
+    'SemiStructuredInstanceEditConduitAPIMethod' => 'conduit/SemiStructuredInstanceEditConduitAPIMethod.php',
+    'SemiStructuredInstanceSearchConduitAPIMethod' => 'conduit/SemiStructuredInstanceSearchConduitAPIMethod.php',
     'SemiStructuredObjectInstance' => 'storage/SemiStructuredObjectInstance.php',
     'SemiStructuredObjectInstanceClassTransaction' => 'xaction/instance/SemiStructuredObjectInstanceClassTransaction.php',
     'SemiStructuredObjectInstanceController' => 'controller/instance/SemiStructuredObjectInstanceController.php',
     'SemiStructuredObjectInstanceDescriptionTransaction' => 'xaction/instance/SemiStructuredObjectInstanceDescriptionTransaction.php',
     'SemiStructuredObjectInstanceEditController' => 'controller/instance/SemiStructuredObjectInstanceEditController.php',
     'SemiStructuredObjectInstanceEditEngine' => 'editor/SemiStructuredObjectInstanceEditEngine.php',
     'SemiStructuredObjectInstanceListController' => 'controller/instance/SemiStructuredObjectInstanceListController.php',
     'SemiStructuredObjectInstanceMailReceiver' => 'mail/SemiStructuredObjectInstanceMailReceiver.php',
     'SemiStructuredObjectInstanceNameTransaction' => 'xaction/instance/SemiStructuredObjectInstanceNameTransaction.php',
     'SemiStructuredObjectInstancePHIDType' => 'phid/SemiStructuredObjectInstancePHIDType.php',
     'SemiStructuredObjectInstanceQuery' => 'query/SemiStructuredObjectInstanceQuery.php',
     'SemiStructuredObjectInstanceRawDataTransaction' => 'xaction/instance/SemiStructuredObjectInstanceRawDataTransaction.php',
     'SemiStructuredObjectInstanceReplyHandler' => 'mail/SemiStructuredObjectInstanceReplyHandler.php',
     'SemiStructuredObjectInstanceSearchEngine' => 'query/SemiStructuredObjectInstanceSearchEngine.php',
     'SemiStructuredObjectInstanceTransaction' => 'storage/SemiStructuredObjectInstanceTransaction.php',
     'SemiStructuredObjectInstanceTransactionComment' => 'storage/SemiStructuredObjectInstanceTransactionComment.php',
     'SemiStructuredObjectInstanceTransactionEditor' => 'editor/SemiStructuredObjectInstanceTransactionEditor.php',
     'SemiStructuredObjectInstanceTransactionQuery' => 'query/SemiStructuredObjectInstanceTransactionQuery.php',
     'SemiStructuredObjectInstanceTransactionType' => 'xaction/instance/SemiStructuredObjectInstanceTransactionType.php',
     'SemiStructuredObjectInstanceViewController' => 'controller/instance/SemiStructuredObjectInstanceViewController.php',
     'SemiStructuredObjectNewInstanceController' => 'controller/class/SemiStructuredObjectNewInstanceController.php',
     'SemiStructuredObjectType' => 'storage/SemiStructuredObjectType.php',
     'SemiStructuredObjectTypeArchiveController' => 'controller/class/SemiStructuredObjectTypeArchiveController.php',
     'SemiStructuredObjectTypeController' => 'controller/class/SemiStructuredObjectTypeController.php',
     'SemiStructuredObjectTypeCustomFieldsTransaction' => 'xaction/class/SemiStructuredObjectTypeCustomFieldsTransaction.php',
     'SemiStructuredObjectTypeDescriptionTransaction' => 'xaction/class/SemiStructuredObjectTypeDescriptionTransaction.php',
     'SemiStructuredObjectTypeEditController' => 'controller/class/SemiStructuredObjectTypeEditController.php',
     'SemiStructuredObjectTypeEditEngine' => 'editor/SemiStructuredObjectTypeEditEngine.php',
     'SemiStructuredObjectTypeFerretEngine' => 'engine/SemiStructuredObjectTypeFerretEngine.php',
     'SemiStructuredObjectTypeListController' => 'controller/class/SemiStructuredObjectTypeListController.php',
     'SemiStructuredObjectTypeMailReceiver' => 'mail/SemiStructuredObjectTypeMailReceiver.php',
     'SemiStructuredObjectTypeNameTransaction' => 'xaction/class/SemiStructuredObjectTypeNameTransaction.php',
     'SemiStructuredObjectTypePHIDType' => 'phid/SemiStructuredObjectTypePHIDType.php',
     'SemiStructuredObjectTypeQuery' => 'query/SemiStructuredObjectTypeQuery.php',
     'SemiStructuredObjectTypeRemarkupRule' => 'remarkup/SemiStructuredObjectTypeRemarkupRule.php',
     'SemiStructuredObjectTypeReplyHandler' => 'mail/SemiStructuredObjectTypeReplyHandler.php',
     'SemiStructuredObjectTypeSearchEngine' => 'query/SemiStructuredObjectTypeSearchEngine.php',
     'SemiStructuredObjectTypeStatusTransaction' => 'xaction/class/SemiStructuredObjectTypeStatusTransaction.php',
     'SemiStructuredObjectTypeTransaction' => 'storage/SemiStructuredObjectTypeTransaction.php',
     'SemiStructuredObjectTypeTransactionComment' => 'storage/SemiStructuredObjectTypeTransactionComment.php',
     'SemiStructuredObjectTypeTransactionEditor' => 'editor/SemiStructuredObjectTypeTransactionEditor.php',
     'SemiStructuredObjectTypeTransactionQuery' => 'query/SemiStructuredObjectTypeTransactionQuery.php',
     'SemiStructuredObjectTypeTransactionType' => 'xaction/class/SemiStructuredObjectTypeTransactionType.php',
     'SemiStructuredObjectTypeViewController' => 'controller/class/SemiStructuredObjectTypeViewController.php',
     'SemiStructuredPatchList' => 'storage/SemiStructuredPatchList.php',
     'SemiStructuredSchemaSpec' => 'storage/SemiStructuredSchemaSpec.php',
     'SemiStructuredStaticSearchField' => '_to_upstream/SemiStructuredStaticSearchField.php',
   ),
   'function' => array(),
   'xmap' => array(
     'SemiStructuredBaseController' => 'PhabricatorController',
     'SemiStructuredDAO' => 'PhabricatorLiskDAO',
     'SemiStructuredDataApplication' => 'PhabricatorApplication',
     'SemiStructuredInstanceConfiguredCustomField' => array(
       'SemiStructuredInstanceCustomField',
       'PhabricatorStandardCustomFieldInterface',
     ),
     'SemiStructuredInstanceConfiguredCustomFieldStorage' => 'PhabricatorCustomFieldStorage',
     'SemiStructuredInstanceCustomField' => 'PhabricatorCustomField',
     'SemiStructuredInstanceCustomFieldNumericIndex' => 'PhabricatorCustomFieldNumericIndexStorage',
     'SemiStructuredInstanceCustomFieldStringIndex' => 'PhabricatorCustomFieldStringIndexStorage',
+    'SemiStructuredInstanceEditConduitAPIMethod' => 'PhabricatorEditEngineAPIMethod',
+    'SemiStructuredInstanceSearchConduitAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
     'SemiStructuredObjectInstance' => array(
       'SemiStructuredDAO',
       'PhabricatorPolicyInterface',
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorSubscribableInterface',
       'PhabricatorFlaggableInterface',
       'PhabricatorProjectInterface',
       'PhabricatorMentionableInterface',
       'PhabricatorCustomFieldInterface',
       'PhabricatorDestructibleInterface',
     ),
     'SemiStructuredObjectInstanceClassTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectInstanceDescriptionTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceEditController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectInstanceEditEngine' => 'PhabricatorEditEngine',
     'SemiStructuredObjectInstanceListController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredObjectInstanceMailReceiver' => 'PhabricatorObjectMailReceiver',
     'SemiStructuredObjectInstanceNameTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstancePHIDType' => 'PhabricatorPHIDType',
     'SemiStructuredObjectInstanceQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'SemiStructuredObjectInstanceRawDataTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceReplyHandler' => 'PhabricatorApplicationTransactionReplyHandler',
     'SemiStructuredObjectInstanceSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'SemiStructuredObjectInstanceTransaction' => 'PhabricatorModularTransaction',
     'SemiStructuredObjectInstanceTransactionComment' => 'PhabricatorApplicationTransactionComment',
     'SemiStructuredObjectInstanceTransactionEditor' => 'PhabricatorApplicationTransactionEditor',
     'SemiStructuredObjectInstanceTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'SemiStructuredObjectInstanceTransactionType' => 'PhabricatorModularTransactionType',
     'SemiStructuredObjectInstanceViewController' => 'SemiStructuredObjectInstanceController',
     'SemiStructuredObjectNewInstanceController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredObjectType' => array(
       'SemiStructuredDAO',
       'PhabricatorPolicyInterface',
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorMentionableInterface',
       'PhabricatorSubscribableInterface',
       'PhabricatorProjectInterface',
       'PhabricatorFlaggableInterface',
       'PhabricatorDestructibleInterface',
       'PhabricatorFerretInterface',
     ),
     'SemiStructuredObjectTypeArchiveController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeCustomFieldsTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeDescriptionTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeEditController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeEditEngine' => 'PhabricatorEditEngine',
     'SemiStructuredObjectTypeFerretEngine' => 'PhabricatorFerretEngine',
     'SemiStructuredObjectTypeListController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeMailReceiver' => 'PhabricatorObjectMailReceiver',
     'SemiStructuredObjectTypeNameTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypePHIDType' => 'PhabricatorPHIDType',
     'SemiStructuredObjectTypeQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'SemiStructuredObjectTypeRemarkupRule' => 'PhabricatorObjectRemarkupRule',
     'SemiStructuredObjectTypeReplyHandler' => 'PhabricatorApplicationTransactionReplyHandler',
     'SemiStructuredObjectTypeSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'SemiStructuredObjectTypeStatusTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeTransaction' => 'PhabricatorModularTransaction',
     'SemiStructuredObjectTypeTransactionComment' => 'PhabricatorApplicationTransactionComment',
     'SemiStructuredObjectTypeTransactionEditor' => 'PhabricatorApplicationTransactionEditor',
     'SemiStructuredObjectTypeTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'SemiStructuredObjectTypeTransactionType' => 'PhabricatorModularTransactionType',
     'SemiStructuredObjectTypeViewController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredPatchList' => 'PhabricatorSQLPatchList',
     'SemiStructuredSchemaSpec' => 'PhabricatorConfigSchemaSpec',
     'SemiStructuredStaticSearchField' => 'PhabricatorSearchField',
   ),
 ));
diff --git a/src/conduit/SemiStructuredInstanceEditConduitAPIMethod.php b/src/conduit/SemiStructuredInstanceEditConduitAPIMethod.php
new file mode 100644
index 0000000..61d65a5
--- /dev/null
+++ b/src/conduit/SemiStructuredInstanceEditConduitAPIMethod.php
@@ -0,0 +1,19 @@
+<?php
+
+final class SemiStructuredInstanceEditConduitAPIMethod
+  extends PhabricatorEditEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'semistructured.instance.edit';
+  }
+
+  public function newEditEngine() {
+    return new SemiStructuredObjectInstanceEditEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht(
+      'Apply transactions to create a new Object Instances or edit an existing one.');
+  }
+
+}
diff --git a/src/conduit/SemiStructuredInstanceSearchConduitAPIMethod.php b/src/conduit/SemiStructuredInstanceSearchConduitAPIMethod.php
new file mode 100644
index 0000000..85959a9
--- /dev/null
+++ b/src/conduit/SemiStructuredInstanceSearchConduitAPIMethod.php
@@ -0,0 +1,35 @@
+<?php
+
+final class SemiStructuredInstanceSearchConduitAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'semistructured.instance.search';
+  }
+
+  public function newSearchEngine() {
+    return new SemiStructuredObjectInstanceSearchEngine();
+    $e= new SemiStructuredObjectInstanceSearchEngine();
+
+    $cls = id(new SemiStructuredObjectTypeQuery())
+      ->setViewer(PhabricatorUser::getOmnipotentUser())
+      ->withIDs(array(2))
+      ->executeOne();
+$e->setObjectType($cls);
+    return $e;
+  }
+
+  public function getMethodSummary() {
+    return pht('Read information about Object Instances.');
+  }
+
+}
+
+// search fields to allow
+// - custom fields  -> may be hard - fields not available early enough. maybe just load all possible fields from all types?
+// - class ID (vs phid) ?
+// default output to include
+// - class phid
+// - raw data
+// - custom fields
+// - description, title
diff --git a/src/editor/SemiStructuredObjectInstanceEditEngine.php b/src/editor/SemiStructuredObjectInstanceEditEngine.php
index a0b1103..ca27d47 100644
--- a/src/editor/SemiStructuredObjectInstanceEditEngine.php
+++ b/src/editor/SemiStructuredObjectInstanceEditEngine.php
@@ -1,143 +1,148 @@
 <?php
 
 final class SemiStructuredObjectInstanceEditEngine
   extends PhabricatorEditEngine {
 
   const ENGINECONST = 'sst:objectinstance';
 
   private $objectType;
 
   public function isEngineConfigurable() {
     return false;
   }
 
   public function getEngineName() {
     return pht('Object Instance');
   }
 
   public function getSummaryHeader() {
     return pht('Edit Object Instance');
   }
 
   public function getSummaryText() {
     return pht('This engine is used to modify object instances.');
   }
 
   public function getEngineApplicationClass() {
     return 'SemiStructuredDataApplication';
   }
 
   public function setObjectType(SemiStructuredObjectType $object_type) {
     $this->objectType = $object_type;
     return $this;
   }
 
   protected function newEditableObject() {
     $viewer = $this->getViewer();
     return SemiStructuredObjectInstance::initializeNewObjectInstance(
         $viewer,
         $this->objectType);
   }
 
   protected function newObjectQuery() {
     return new SemiStructuredObjectInstanceQuery();
   }
 
   protected function getObjectCreateTitleText($object) {
     return pht('Create Object Instance');
   }
 
   protected function getObjectCreateButtonText($object) {
     return pht('Create Object Instance');
   }
 
   protected function getObjectCreateCancelURI($object) {
     // TODO if objjec has link to class - go to that class
     return '/semistructured/';
   }
 
   protected function getEditorURI() {
     return $this->getApplication()->getApplicationURI('editinstance/');
   }
 
   public function getCreateURI($form_key) {
 
     if ($this->objectType) {
       return $this->getApplication()->getApplicationURI(
         "type/{$this->objectType->getID()}/new/");
     }
 
     return null;
   }
 
   protected function getObjectEditTitleText($object) {
     return pht('Edit Object: %d', $object->getID());
   }
 
   protected function getObjectEditShortText($object) {
     return pht('Edit Object');
   }
 
   protected function getObjectCreateShortText() {
     return pht('Create Object Instance');
   }
 
   protected function getObjectName() {
     return pht('Object Instance');
   }
 
   protected function getObjectViewURI($object) {
     return $object->getURI();
   }
 
   protected function buildCustomEditFields($object) {
 
     $fields = array(
-      id(id(new PhabricatorStaticEditField())
-        ->setKey('objecttype')
-        ->setLabel(pht('Object Type'))
-        ->setValue($object->getClass()->getName())),
-      id(new PhabricatorIntEditField())
+      id(new PhabricatorTextEditField())
         ->setKey('classPHID')
         ->setLabel(pht('Object Type'))
         ->setDescription(pht('Type of the object.'))
         ->setConduitDescription(pht('Set type of object.'))
         ->setIsHidden(true)
         ->setTransactionType(
           SemiStructuredObjectInstanceClassTransaction::TRANSACTIONTYPE)
         ->setIsRequired(true)
         ->setValue($object->getClassPHID()),
       id(new PhabricatorTextEditField())
         ->setKey('name')
         ->setLabel(pht('Name'))
         ->setDescription(pht('Name of the object.'))
         ->setConduitDescription(pht('Rename the object.'))
         ->setConduitTypeDescription(pht('New object name.'))
         ->setTransactionType(
           SemiStructuredObjectInstanceNameTransaction::TRANSACTIONTYPE)
         ->setValue($object->getName()),
-        id(new PhabricatorRemarkupEditField())
+      id(new PhabricatorRemarkupEditField())
         ->setKey('description')
         ->setLabel(pht('Free text'))
         ->setDescription(pht('Object instance free text (Remarkup).'))
         ->setConduitTypeDescription(pht('New object free type.'))
         ->setTransactionType(
           SemiStructuredObjectInstanceDescriptionTransaction::TRANSACTIONTYPE)
         ->setValue($object->getDescription()),
 
       id(new PhabricatorTextAreaEditField())
         ->setKey('rawdata')
         ->setLabel(pht('Structured content'))
         ->setDescription(pht('Object structured data (JSON).'))
-        ->setConduitTypeDescription(pht('Object body (JSON).'))
+        ->setConduitTypeDescription(pht('Object body (JSON, but as a String!).'))
         ->setMonospaced(true)
         ->setIsRequired(true)
         ->setTransactionType(
           SemiStructuredObjectInstanceRawDataTransaction::TRANSACTIONTYPE)
         ->setValue($object->getRawData()),
     );
 
+    if ($this->objectType) {
+      array_unshift(
+        $fields,
+        (new PhabricatorStaticEditField())
+          ->setKey('objecttype')
+          ->setLabel(pht('Object Type'))
+          ->setValue($this->objectType->getName()));
+    }
+
     return $fields;
   }
 
 }
diff --git a/src/query/SemiStructuredObjectInstanceSearchEngine.php b/src/query/SemiStructuredObjectInstanceSearchEngine.php
index 1d9dec0..0b5013c 100644
--- a/src/query/SemiStructuredObjectInstanceSearchEngine.php
+++ b/src/query/SemiStructuredObjectInstanceSearchEngine.php
@@ -1,166 +1,167 @@
 <?php
 
 final class SemiStructuredObjectInstanceSearchEngine
   extends PhabricatorApplicationSearchEngine {
 
   private $objectType;
 
   public function setObjectType(SemiStructuredObjectType $object_type) {
     $this->objectType = $object_type;
     return $this;
   }
 
   public function getObjectType() {
     return $this->objectType;
   }
 
   public function getResultTypeDescription() {
     return pht('Object Instances');
   }
 
   public function getApplicationClassName() {
     return 'SemiStructuredDataApplication';
   }
 
   public function newQuery() {
     $query = id(new SemiStructuredObjectInstanceQuery());
     if ($this->getObjectType()) {
       $query->withObjectType($this->getObjectType());
     }
     return $query;
   }
 
   protected function buildCustomSearchFields() {
-    return array(
-// TODO object class
+    $fields = array(
+    );
 
-      id(new SemiStructuredStaticSearchField())
+    if ($this->getObjectType()) {
+      $fields[] = id(new SemiStructuredStaticSearchField())
         ->setKey('objecttype')
         ->setLabel(pht('Object Type'))
-        ->setValue($this->getObjectType()->getName()),
-
+        ->setValue($this->getObjectType()->getName());
+    }
 
 
-    );
+    return $fields;
   }
 
   protected function getURI($path) {
     return "/semistruct/type/{$this->getObjectType()->getID()}/{$path}";
   }
 
   protected function getBuiltinQueryNames() {
     $names = array();
 
     $names['all'] = pht('All Instances');
 
     return $names;
   }
 
   public function buildSavedQueryFromBuiltin($query_key) {
     $query = $this->newSavedQuery();
     $query->setQueryKey($query_key);
     $viewer = $this->requireViewer();
 
     switch ($query_key) {
       case 'all':
         return $query;
       case 'open':
         return $query->setParameter(
           'statuses',
           array(
             SemiStructuredObjectType::STATUS_ACTIVE,
           ));
     }
 
     return parent::buildSavedQueryFromBuiltin($query_key);
   }
 
 
   protected function buildQueryFromParameters(array $map) {
     $query = $this->newQuery();
 
     // TODO type id/phid
 
     // if ($map['statuses']) {
     //   $query->withStatuses($map['statuses']);
     // }
 
     // if ($map['editable'] !== null) {
     //   $query->withCanEdit($map['editable']);
     // }
 
     return $query;
   }
 
   protected function getRequiredHandlePHIDsForResultList(
     array $objects,
     PhabricatorSavedQuery $query) {
 
     return array();
   }
 
   public function renderResultsDirectly(array $items) {
     return $this->renderResultList(
       $items,
       new PhabricatorSavedQuery(),
       array());
   }
 
   protected function renderResultList(
     array $items,
     PhabricatorSavedQuery $query ,
     array $handles) {
 
     $viewer = $this->requireViewer();
 
     if ($items) {
       $edge_query = id(new PhabricatorEdgeQuery())
         ->withSourcePHIDs(mpull($items, 'getPHID'))
         ->withEdgeTypes(
           array(
             PhabricatorProjectObjectHasProjectEdgeType::EDGECONST,
           ));
 
       $edge_query->execute();
     }
 
     $list = id(new PHUIObjectItemListView())
       ->setViewer($viewer);
 
     foreach ($items as $instance) {
       $item = id(new PHUIObjectItemView())
         ->setViewer($viewer)
         ->setObjectName($instance->getName())
         ->setHeader($instance->getName())
         ->setHref($instance->getURI())
         ->setObject($instance);
 
       $icon = id(new PHUIIconView())
         ->setIcon($instance->getIcon());
       $item->setImageIcon($icon);
       $item->setEpoch($instance->getDateModified());
 
 
       $phid = $instance->getPHID();
       $project_phids = $edge_query->getDestinationPHIDs(array($phid));
       $project_handles = $viewer->loadHandles($project_phids);
 
       $item->addAttribute(
         id(new PHUIHandleTagListView())
           ->setLimit(4)
           ->setNoDataString(pht('No Tags'))
           ->setSlim(true)
           ->setHandles($project_handles));
 
       $list->addItem($item);
     }
 
     $result = new PhabricatorApplicationSearchResultView();
     $result->setObjectList($list);
     $result->setNoDataString(pht('No objects found.'));
 
     return $result;
   }
 
 
 }
diff --git a/src/storage/SemiStructuredObjectInstance.php b/src/storage/SemiStructuredObjectInstance.php
index 9fdb9f7..64048b1 100644
--- a/src/storage/SemiStructuredObjectInstance.php
+++ b/src/storage/SemiStructuredObjectInstance.php
@@ -1,180 +1,223 @@
 <?php
 
 final class SemiStructuredObjectInstance extends SemiStructuredDAO
   implements
     PhabricatorPolicyInterface,
     PhabricatorApplicationTransactionInterface,
     PhabricatorSubscribableInterface,
     PhabricatorFlaggableInterface,
     PhabricatorProjectInterface,
     PhabricatorMentionableInterface,
-    // PhabricatorConduitResultInterface,
+    PhabricatorConduitResultInterface,
     PhabricatorCustomFieldInterface,
     PhabricatorDestructibleInterface {
 
 
   protected $classPHID;
   protected $status;
   protected $name;
   protected $rawData = '{}';
   protected $description;
 
 
   const STATUS_ACTIVE = 'active';
   const STATUS_ARCHIVED = 'archived';
 
   private $class = self::ATTACHABLE;
   private $customFields = self::ATTACHABLE;
 
   public static function initializeNewObjectInstance(
       PhabricatorUser $actor,
       SemiStructuredObjectType $object_class = null) {
 
     $object = id(new self())
     // ->setViewPolicy(PhabricatorPolicies::getMostOpenPolicy()) // TODO take policies from class?
     // ->setEditPolicy($actor->getPHID())
     ->setStatus(self::STATUS_ACTIVE);
 
     if ($object_class !== null) {
       $object
         ->setClassPHID($object_class->getPHID())
         ->attachClass($object_class);
     }
 
     return $object;
   }
 
   public function attachClass(
       SemiStructuredObjectType $object_class = null) {
     $this->class = $object_class;
     return $this;
   }
 
   public function getClass() {
     return $this->assertAttached($this->class);
   }
 
   public function hasAttachedClass() {
     return $this->class !== self::ATTACHABLE;
   }
 
   public function getURI() {
     return urisprintf('/semistruct/instance/%d/', $this->getID());
   }
 
 
   public function getIcon() {
     // TODO customize in Type
     return SemiStructuredDataApplication::ICON_OBJECT_INSTANCE;
   }
 
   public static function getStatusNameMap() {
     return array(
       // TODO remove this
       self::STATUS_ACTIVE => pht('Active'),
       self::STATUS_ARCHIVED => pht('Archived'),
     );
   }
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_SERIALIZATION => array(
         'rawData' => self::SERIALIZATION_JSON,
       ),
       self::CONFIG_COLUMN_SCHEMA => array(
         'name' => 'sort255',
         'description' => 'text',
         'status' => 'text32',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'classPHID' => array(
           'columns' => array('classPHID'),
         ),
       ),
     ) + parent::getConfiguration();
   }
 
 
   public function getPHIDType() {
     return SemiStructuredObjectInstancePHIDType::TYPECONST;
   }
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
 
   public function getApplicationTransactionEditor() {
     return new SemiStructuredObjectInstanceTransactionEditor();
   }
 
   public function getApplicationTransactionTemplate() {
     return new SemiStructuredObjectInstanceTransaction();
   }
 
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
 return ''; // TODO
     switch ($capability) {
       // TODO
       case PhabricatorPolicyCapability::CAN_VIEW:
         return $this->getViewPolicy();
       case PhabricatorPolicyCapability::CAN_EDIT:
         return $this->getEditPolicy();
     }
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     return true;
   }
 
-  /* -(  PhabricatorCustomFieldInterface  )------------------------------------ */
+/* -(  PhabricatorCustomFieldInterface  )------------------------------------ */
 
 
   public function getCustomFieldSpecificationForRole($role) {
-    return PhabricatorEnv::getEnvConfig('user.fields');
+    return array();
   }
 
   public function getCustomFieldBaseClass() {
     return 'SemiStructuredInstanceCustomField';
   }
 
   public function getCustomFields() {
     return $this->assertAttached($this->customFields);
   }
 
   public function attachCustomFields(PhabricatorCustomFieldAttachment $fields) {
     $this->customFields = $fields;
     return $this;
   }
 
 
+/* -(  PhabricatorConduitResultInterface  )---------------------------------- */
+
+
+  public function getFieldSpecificationsForConduit() {
+    return array(
+      (new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('name')
+        ->setType('string')
+        ->setDescription(pht('The name of the instance.')),
+      (new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('description')
+        ->setType('remarkup')
+        ->setDescription(pht('The description.')),
+      (new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('classPHID')
+        ->setType('phid')
+        ->setDescription(pht('The Type of this Instance.')),
+      (new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('rawData')
+        ->setType('map<string, wild>')
+        ->setDescription(pht('The raw structured data')),
+
+// TODO custom fields
+
+    );
+  }
+
+  public function getFieldValuesForConduit() {
+    return array(
+      'name' => $this->getName(),
+      'description' => array(
+        'raw' => $this->getDescription(),
+      ),
+      'classPHID' => $this->getClassPHID(),
+      'rawData' => json_decode($this->getRawData()),
+    );
+  }
+
+  public function getConduitSearchAttachments() {
+    return array();
+  }
+
+
 /* -(  PhabricatorDestructibleInterface  )----------------------------------- */
 
 
   public function destroyObjectPermanently(
     PhabricatorDestructionEngine $engine) {
 
     $this->openTransaction();
       $this->delete();
     $this->saveTransaction();
   }
 
 
 /* -(  PhabricatorSubscribableInterface  )----------------------------------- */
 
 
   public function isAutomaticallySubscribed($phid) {
     return false;
   }
 
 }
diff --git a/src/xaction/instance/SemiStructuredObjectInstanceClassTransaction.php b/src/xaction/instance/SemiStructuredObjectInstanceClassTransaction.php
index 5f09bf4..e04ea54 100644
--- a/src/xaction/instance/SemiStructuredObjectInstanceClassTransaction.php
+++ b/src/xaction/instance/SemiStructuredObjectInstanceClassTransaction.php
@@ -1,38 +1,41 @@
 <?php
 
 final class SemiStructuredObjectInstanceClassTransaction
   extends SemiStructuredObjectInstanceTransactionType {
 
   const TRANSACTIONTYPE = 'semist:instance:class';
 
   public function generateOldValue($object) {
     return $object->getClassPHID();
   }
 
   public function applyInternalEffects($object, $value) {
     $object->setClassPHID($value);
   }
 
 
   public function validateTransactions($object, array $xactions) {
     $errors = array();
 
     if (!$xactions) {
       if (!$object->getClassPHID()) {
         $errors[] = $this->newInvalidError(pht('ClassPHID is required!'));
       }
     }
 
+
     foreach ($xactions as $xaction) {
       $new_value = $xaction->getNewValue();
+      // TODO figure out why getOldValue is null
       $old_value = $xaction->getOldValue();
+      $old_value = $object->getClassPHID();
 
       if ($old_value !== null && $new_value != $old_value) {
         $errors[] = $this->newInvalidError(
           pht('ClassPHID cannot be changed.'));
       }
     }
 
     return $errors;
   }
 }