diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -313,6 +313,7 @@
     'ConduitCallTestCase' => 'applications/conduit/call/__tests__/ConduitCallTestCase.php',
     'ConduitColumnsParameterType' => 'applications/conduit/parametertype/ConduitColumnsParameterType.php',
     'ConduitConnectConduitAPIMethod' => 'applications/conduit/method/ConduitConnectConduitAPIMethod.php',
+    'ConduitConstantDescription' => 'applications/conduit/data/ConduitConstantDescription.php',
     'ConduitEpochParameterType' => 'applications/conduit/parametertype/ConduitEpochParameterType.php',
     'ConduitException' => 'applications/conduit/protocol/exception/ConduitException.php',
     'ConduitGetCapabilitiesConduitAPIMethod' => 'applications/conduit/method/ConduitGetCapabilitiesConduitAPIMethod.php',
@@ -5628,6 +5629,7 @@
     'ConduitCallTestCase' => 'PhabricatorTestCase',
     'ConduitColumnsParameterType' => 'ConduitParameterType',
     'ConduitConnectConduitAPIMethod' => 'ConduitAPIMethod',
+    'ConduitConstantDescription' => 'Phobject',
     'ConduitEpochParameterType' => 'ConduitParameterType',
     'ConduitException' => 'Exception',
     'ConduitGetCapabilitiesConduitAPIMethod' => 'ConduitAPIMethod',
diff --git a/src/applications/conduit/data/ConduitConstantDescription.php b/src/applications/conduit/data/ConduitConstantDescription.php
new file mode 100644
--- /dev/null
+++ b/src/applications/conduit/data/ConduitConstantDescription.php
@@ -0,0 +1,26 @@
+<?php
+
+final class ConduitConstantDescription extends Phobject {
+
+  private $key;
+  private $value;
+
+  public function setKey($key) {
+    $this->key = $key;
+    return $this;
+  }
+
+  public function getKey() {
+    return $this->key;
+  }
+
+  public function setValue($value) {
+    $this->value = $value;
+    return $this;
+  }
+
+  public function getValue() {
+    return $this->value;
+  }
+
+}
diff --git a/src/applications/search/engine/PhabricatorSearchEngineAPIMethod.php b/src/applications/search/engine/PhabricatorSearchEngineAPIMethod.php
--- a/src/applications/search/engine/PhabricatorSearchEngineAPIMethod.php
+++ b/src/applications/search/engine/PhabricatorSearchEngineAPIMethod.php
@@ -190,15 +190,26 @@
       $fields,
       array('ids', 'phids')) + $fields;
 
+    $constant_lists = array();
+
     $rows = array();
     foreach ($fields as $field) {
       $key = $field->getConduitKey();
       $label = $field->getLabel();
 
+      $constants = $field->newConduitConstants();
+
       $type_object = $field->getConduitParameterType();
       if ($type_object) {
         $type = $type_object->getTypeName();
         $description = $field->getDescription();
+        if ($constants) {
+          $description = array(
+            $description,
+            ' ',
+            phutil_tag('em', array(), pht('(See table below.)')),
+          );
+        }
       } else {
         $type = null;
         $description = phutil_tag('em', array(), pht('Not supported.'));
@@ -210,6 +221,35 @@
         $type,
         $description,
       );
+
+      if ($constants) {
+        $constant_lists[] = $this->buildRemarkup(
+          pht(
+            'Constants supported by the `%s` constraint:',
+            'statuses'));
+
+        $constants_rows = array();
+        foreach ($constants as $constant) {
+          $constants_rows[] = array(
+            $constant->getKey(),
+            $constant->getValue(),
+          );
+        }
+
+        $constants_table = id(new AphrontTableView($constants_rows))
+          ->setHeaders(
+            array(
+              pht('Key'),
+              pht('Value'),
+            ))
+          ->setColumnClasses(
+            array(
+              'pre',
+              'wide',
+            ));
+
+        $constant_lists[] = $constants_table;
+      }
     }
 
     $table = id(new AphrontTableView($rows))
@@ -233,7 +273,8 @@
       ->setCollapsed(true)
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
       ->appendChild($this->buildRemarkup($info))
-      ->appendChild($table);
+      ->appendChild($table)
+      ->appendChild($constant_lists);
   }
 
   private function buildOrderBox(
diff --git a/src/applications/search/field/PhabricatorSearchCheckboxesField.php b/src/applications/search/field/PhabricatorSearchCheckboxesField.php
--- a/src/applications/search/field/PhabricatorSearchCheckboxesField.php
+++ b/src/applications/search/field/PhabricatorSearchCheckboxesField.php
@@ -49,4 +49,16 @@
     return new ConduitStringListParameterType();
   }
 
+  public function newConduitConstants() {
+    $list = array();
+
+    foreach ($this->getOptions() as $key => $option) {
+      $list[] = id(new ConduitConstantDescription())
+        ->setKey($key)
+        ->setValue($option);
+    }
+
+    return $list;
+  }
+
 }
diff --git a/src/applications/search/field/PhabricatorSearchField.php b/src/applications/search/field/PhabricatorSearchField.php
--- a/src/applications/search/field/PhabricatorSearchField.php
+++ b/src/applications/search/field/PhabricatorSearchField.php
@@ -382,6 +382,10 @@
     return $this->enableForConduit;
   }
 
+  public function newConduitConstants() {
+    return array();
+  }
+
 
 /* -(  Utility Methods )----------------------------------------------------- */