diff --git a/datasette_test/plugin.py b/datasette_test/plugin.py
new file mode 100644
index 0000000..ff4675e
--- /dev/null
+++ b/datasette_test/plugin.py
@@ -0,0 +1,14 @@
+from datasette import hookimpl
+
+
+@hookimpl
+def permission_allowed(datasette, actor, action):
+    from datasette.utils import actor_matches_allow
+
+    if not hasattr(datasette, "_special_test_permissions"):
+        return None
+    special_permissions = datasette._special_test_permissions
+    if action not in special_permissions:
+        return None
+    rule = special_permissions[action]
+    return actor_matches_allow(actor, rule)