Index: src/config/database.js
===================================================================
--- src/config/database.js	(revision 5c373b8e846c6510a176f2fa06bfe3e2b6753102)
+++ src/config/database.js	(revision c66cbb4536b30530330e60aecad2a6de103f0375)
@@ -561,4 +561,6 @@
   ensureColumn('ap_outbox', 'help_request', 'INTEGER'); // FEP-633c shaer:helpRequest (ward's call for help)
   ensureColumn('ap_mentions', 'help_request', 'INTEGER'); // inbound ward call-for-help (Guardian PWA message centre)
+  ensureColumn('ap_outbox', 'wave', 'INTEGER');    // FEP-633c shaer:wave (guardian -> ward nudge)
+  ensureColumn('ap_mentions', 'wave', 'INTEGER');  // inbound guardian wave
   ensureColumn('ap_followers', 'name', 'TEXT');    // cached display name (shaer-aa3)
   ensureColumn('ap_followers', 'handle', 'TEXT');  // @user@host