diff --git a/src/tosca/xtarget/tosca.xtarget b/src/tosca/xtarget/tosca.xtarget
index 313874b..2cdec9c 100644
--- a/src/tosca/xtarget/tosca.xtarget
+++ b/src/tosca/xtarget/tosca.xtarget
@@ -9,22 +9,10 @@
             {{ m.name|lower }}:
                 type: tosca.capabilities.xos.{{ m.name }}
         properties:
-            no-delete:
+            must-exist:
                 type: boolean
                 default: false
-                description: Do not allow Tosca to delete this object
-            no-create:
-                type: boolean
-                default: false
-                description: Do not allow Tosca to create this object
-            no-update:
-                type: boolean
-                default: false
-                description: Do not allow Tosca to update this object
-            replaces:
-                type: string
-                required: false
-                descrption: Replaces/renames this object
+                description: Allow to reference existing models in TOSCA recipes
             {% for f in m.fields %}
             {%- if not f.link -%}
             {{ f.name }}: