diff --git a/src/lint/linter/xhpast/ArcanistPhutilXHPASTLintNamingHook.php b/src/lint/linter/xhpast/ArcanistPhutilXHPASTLintNamingHook.php
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/xhpast/ArcanistPhutilXHPASTLintNamingHook.php
@@ -0,0 +1,11 @@
+<?php
+
+final class ArcanistPhutilXHPASTLintNamingHook
+  extends ArcanistXHPASTLintNamingHook {
+
+
+  public function lintSymbolName($type, $name, $default, array $context) {
+    //
+  }
+
+}
diff --git a/src/lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php b/src/lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php
--- a/src/lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php
+++ b/src/lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php
@@ -45,15 +45,21 @@
    *   }
    *   return $default;
    *
-   * @param   string      The symbol type.
-   * @param   string      The symbol name.
-   * @param   string|null The default result from the main rule engine.
-   * @return  string|null Null to accept the name, or a message to reject it
-   *                      with. You should return the default value if you don't
-   *                      want to specifically provide an override.
+   * @param   string                The symbol type.
+   * @param   string                The symbol name.
+   * @param   string|null           The default result from the main rule engine.
+   * @param   dict<string, string>  Context
+   * @return  string|null           Null to accept the name, or a message to
+   *                                reject it with. You should return the
+   *                                default value if you don't want to
+   *                                specifically provide an override.
    * @task override
    */
-  abstract public function lintSymbolName($type, $name, $default);
+  abstract public function lintSymbolName(
+    $type,
+    $name,
+    $default,
+    array $context);
 
 
 /* -(  Name Utilities  )----------------------------------------------------- */
diff --git a/src/lint/linter/xhpast/rules/ArcanistNamingConventionsXHPASTLinterRule.php b/src/lint/linter/xhpast/rules/ArcanistNamingConventionsXHPASTLinterRule.php
--- a/src/lint/linter/xhpast/rules/ArcanistNamingConventionsXHPASTLinterRule.php
+++ b/src/lint/linter/xhpast/rules/ArcanistNamingConventionsXHPASTLinterRule.php
@@ -19,6 +19,7 @@
     return parent::getLinterConfigurationOptions() + array(
       'xhpast.naminghook' => array(
         'type' => 'optional string',
+        'default' => 'ArcanistPhutilXHPASTLintNamingHook',
         'help' => pht(
           'Name of a concrete subclass of %s which enforces more '.
           'granular naming convention rules for symbols.',
@@ -44,23 +45,6 @@
     // override us.
     $names = array();
 
-    $classes = $root->selectDescendantsOfType('n_CLASS_DECLARATION');
-    foreach ($classes as $class) {
-      $name_token = $class->getChildByIndex(1);
-      $name_string = $name_token->getConcreteString();
-
-      $names[] = array(
-        'class',
-        $name_string,
-        $name_token,
-        ArcanistXHPASTLintNamingHook::isUpperCamelCase($name_string)
-          ? null
-          : pht(
-            'Follow naming conventions: classes should be named using '.
-            'UpperCamelCase.'),
-      );
-    }
-
     $ifaces = $root->selectDescendantsOfType('n_INTERFACE_DECLARATION');
     foreach ($ifaces as $iface) {
       $name_token = $iface->getChildByIndex(1);
@@ -282,7 +266,7 @@
       $hook_obj = newv($hook_class, array());
       foreach ($names as $k => $name_attrs) {
         list($type, $name, $token, $default) = $name_attrs;
-        $result = $hook_obj->lintSymbolName($type, $name, $default);
+        $result = $hook_obj->lintSymbolName($type, $name, $default, $context);
         $names[$k][3] = $result;
       }
     }
@@ -346,4 +330,23 @@
     }
   }
 
+  private function lintClassNames() {
+    $classes = $root->selectDescendantsOfType('n_CLASS_DECLARATION');
+    foreach ($classes as $class) {
+      $name_token = $class->getChildByIndex(1);
+      $name_string = $name_token->getConcreteString();
+
+      $names[] = array(
+        'class',
+        $name_string,
+        $name_token,
+        ArcanistXHPASTLintNamingHook::isUpperCamelCase($name_string)
+          ? null
+          : pht(
+            'Follow naming conventions: classes should be named using '.
+            'UpperCamelCase.'),
+      );
+    }
+  }
+
 }