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
@@ -2757,6 +2757,7 @@
     'PhabricatorProjectMemberOfProjectEdgeType' => 'applications/project/edge/PhabricatorProjectMemberOfProjectEdgeType.php',
     'PhabricatorProjectMembersDatasource' => 'applications/project/typeahead/PhabricatorProjectMembersDatasource.php',
     'PhabricatorProjectMembersEditController' => 'applications/project/controller/PhabricatorProjectMembersEditController.php',
+    'PhabricatorProjectMembersOfProjectPolicyRule' => 'applications/project/policyrule/PhabricatorProjectMembersOfProjectPolicyRule.php',
     'PhabricatorProjectMembersRemoveController' => 'applications/project/controller/PhabricatorProjectMembersRemoveController.php',
     'PhabricatorProjectMoveController' => 'applications/project/controller/PhabricatorProjectMoveController.php',
     'PhabricatorProjectNoProjectsDatasource' => 'applications/project/typeahead/PhabricatorProjectNoProjectsDatasource.php',
@@ -6957,6 +6958,7 @@
     'PhabricatorProjectMemberOfProjectEdgeType' => 'PhabricatorEdgeType',
     'PhabricatorProjectMembersDatasource' => 'PhabricatorTypeaheadCompositeDatasource',
     'PhabricatorProjectMembersEditController' => 'PhabricatorProjectController',
+    'PhabricatorProjectMembersOfProjectPolicyRule' => 'PhabricatorPolicyRule',
     'PhabricatorProjectMembersRemoveController' => 'PhabricatorProjectController',
     'PhabricatorProjectMoveController' => 'PhabricatorProjectController',
     'PhabricatorProjectNoProjectsDatasource' => 'PhabricatorTypeaheadDatasource',
diff --git a/src/applications/project/controller/PhabricatorProjectProfileController.php b/src/applications/project/controller/PhabricatorProjectProfileController.php
--- a/src/applications/project/controller/PhabricatorProjectProfileController.php
+++ b/src/applications/project/controller/PhabricatorProjectProfileController.php
@@ -92,7 +92,8 @@
         ->setName(pht('Edit Details'))
         ->setIcon('fa-pencil')
         ->setHref($this->getApplicationURI("details/{$id}/"))
-        ->setDisabled(!$can_edit));
+        ->setDisabled(!$can_edit)
+        ->setWorkflow(!$can_edit));
 
     $view->addAction(
       id(new PhabricatorActionView())
diff --git a/src/applications/project/policyrule/PhabricatorProjectMembersOfProjectPolicyRule.php b/src/applications/project/policyrule/PhabricatorProjectMembersOfProjectPolicyRule.php
new file mode 100644
--- /dev/null
+++ b/src/applications/project/policyrule/PhabricatorProjectMembersOfProjectPolicyRule.php
@@ -0,0 +1,47 @@
+<?php
+
+final class PhabricatorProjectMembersOfProjectPolicyRule
+  extends PhabricatorPolicyRule {
+
+  public function getObjectPolicyKey() {
+    return 'project.members';
+  }
+
+  public function getObjectPolicyName() {
+    return pht('Members');
+  }
+
+  public function getPolicyExplanation() {
+    return pht('Members can take this action.');
+  }
+
+  public function getRuleDescription() {
+    return pht('members of project');
+  }
+
+  public function canApplyToObject(PhabricatorPolicyInterface $object) {
+    return $object instanceof PhabricatorProject;
+  }
+
+  public function applyRule(
+    PhabricatorUser $viewer,
+    $value,
+    PhabricatorPolicyInterface $object) {
+
+    $edge_query = id(new PhabricatorEdgeQuery())
+      ->withSourcePHIDs(array($viewer->getPHID()))
+      ->withDestinationPHIDs(array($object->getPHID()))
+      ->withEdgeTypes(
+        array(
+          PhabricatorProjectMemberOfProjectEdgeType::EDGECONST,
+        ));
+    $edge_query->execute();
+
+    return (bool)$edge_query->getDestinationPHIDs();
+  }
+
+  public function getValueControlType() {
+    return self::CONTROL_TYPE_NONE;
+  }
+
+}