diff --git a/TODO b/TODO
index fe5ebe5..efaec11 100644
--- a/TODO
+++ b/TODO
@@ -112,6 +112,15 @@ ATT/GATT (new shared stack)
   Priority: Medium
   Complexity: C2
 
+- Support included services in shared/gatt-client. This requires helper
+  functions to be added to discover secondary services and include declarations
+  to shared/gatt-helpers. shared/gatt-client's attribute discovery procedure
+  needs to be extended to discover all secondary services and store include
+  declarations for all discovered services.
+
+  Priority: Low
+  Complexity: C2
+
 - Introduce long-term caching of attributes to shared/gatt-client, such that the
   services, characteristics, and descriptors obtained from a peripheral are
   remembered in the case of bonding. This may involve storing data about GATT