diff --git a/src/applications/almanac/controller/AlmanacController.php b/src/applications/almanac/controller/AlmanacController.php
--- a/src/applications/almanac/controller/AlmanacController.php
+++ b/src/applications/almanac/controller/AlmanacController.php
@@ -38,7 +38,7 @@
         ));
 
     $builtins = $object->getAlmanacPropertyFieldSpecifications();
-    $defaults = mpull($builtins, null, 'getValueForTransaction');
+    $defaults = mpull($builtins, 'getValueForTransaction');
 
     // Sort fields so builtin fields appear first, then fields are ordered
     // alphabetically.
@@ -65,6 +65,7 @@
       $value = $property->getFieldValue();
 
       $is_builtin = isset($builtins[$key]);
+      $is_persistent = (bool)$property->getID();
 
       $delete_uri = id(new PhutilURI($delete_base))
         ->setQueryParams(
@@ -83,7 +84,7 @@
       $delete = javelin_tag(
         'a',
         array(
-          'class' => ($can_edit
+          'class' => (($can_edit && $is_persistent)
             ? 'button button-grey small'
             : 'button button-grey small disabled'),
           'sigil' => 'workflow',
diff --git a/src/applications/almanac/editor/AlmanacPropertyEditEngine.php b/src/applications/almanac/editor/AlmanacPropertyEditEngine.php
--- a/src/applications/almanac/editor/AlmanacPropertyEditEngine.php
+++ b/src/applications/almanac/editor/AlmanacPropertyEditEngine.php
@@ -66,8 +66,15 @@
     $property_key = $this->getPropertyKey();
     $xaction_type = $object->getAlmanacPropertySetTransactionType();
 
+    $specs = $object->getAlmanacPropertyFieldSpecifications();
+    if (isset($specs[$property_key])) {
+      $field_template = clone $specs[$property_key];
+    } else {
+      $field_template = new PhabricatorTextEditField();
+    }
+
     return array(
-      id(new PhabricatorTextEditField())
+      $field_template
         ->setKey('value')
         ->setMetadataValue('almanac.property', $property_key)
         ->setLabel($property_key)
diff --git a/src/applications/almanac/query/AlmanacQuery.php b/src/applications/almanac/query/AlmanacQuery.php
--- a/src/applications/almanac/query/AlmanacQuery.php
+++ b/src/applications/almanac/query/AlmanacQuery.php
@@ -34,10 +34,12 @@
         $specs = $object->getAlmanacPropertyFieldSpecifications();
         foreach ($specs as $key => $spec) {
           if (empty($object_properties[$key])) {
+            $default_value = $spec->getValueForTransaction();
+
             $object_properties[$key] = id(new AlmanacProperty())
               ->setObjectPHID($object->getPHID())
               ->setFieldName($key)
-              ->setFieldValue($spec->getValueForTransaction());
+              ->setFieldValue($default_value);
           }
         }
 
diff --git a/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php b/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
@@ -24,4 +24,36 @@
     );
   }
 
+  public function getBindingFieldSpecifications(AlmanacBinding $binding) {
+    $protocols = array(
+      array(
+        'value' => 'http',
+        'port' => 80,
+      ),
+      array(
+        'value' => 'https',
+        'port' => 443,
+      ),
+      array(
+        'value' => 'ssh',
+        'port' => 22,
+      ),
+    );
+
+    $default_value = 'http';
+    if ($binding->hasInterface()) {
+      $interface = $binding->getInterface();
+      $port = $interface->getPort();
+
+      $default_ports = ipull($protocols, 'value', 'port');
+      $default_value = idx($default_ports, $port, $default_value);
+    }
+
+    return array(
+      'protocol' => id(new PhabricatorSelectEditField())
+        ->setOptions(ipull($protocols, 'value', 'value'))
+        ->setValue($default_value),
+    );
+  }
+
 }
diff --git a/src/applications/almanac/servicetype/AlmanacServiceType.php b/src/applications/almanac/servicetype/AlmanacServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacServiceType.php
@@ -60,6 +60,10 @@
     return array();
   }
 
+  public function getBindingFieldSpecifications(AlmanacBinding $binding) {
+    return array();
+  }
+
   /**
    * List all available service type implementations.
    *
diff --git a/src/applications/almanac/storage/AlmanacBinding.php b/src/applications/almanac/storage/AlmanacBinding.php
--- a/src/applications/almanac/storage/AlmanacBinding.php
+++ b/src/applications/almanac/storage/AlmanacBinding.php
@@ -88,6 +88,10 @@
     return $this;
   }
 
+  public function hasInterface() {
+    return ($this->interface !== self::ATTACHABLE);
+  }
+
   public function getInterface() {
     return $this->assertAttached($this->interface);
   }
@@ -129,7 +133,7 @@
   }
 
   public function getAlmanacPropertyFieldSpecifications() {
-    return array();
+    return $this->getService()->getBindingFieldSpecifications($this);
   }
 
   public function newAlmanacPropertyEditEngine() {
diff --git a/src/applications/almanac/storage/AlmanacService.php b/src/applications/almanac/storage/AlmanacService.php
--- a/src/applications/almanac/storage/AlmanacService.php
+++ b/src/applications/almanac/storage/AlmanacService.php
@@ -156,6 +156,11 @@
     return $this->getServiceImplementation()->getFieldSpecifications();
   }
 
+  public function getBindingFieldSpecifications(AlmanacBinding $binding) {
+    $impl = $this->getServiceImplementation();
+    return $impl->getBindingFieldSpecifications($binding);
+  }
+
   public function newAlmanacPropertyEditEngine() {
     return new AlmanacServicePropertyEditEngine();
   }