diff --git a/memento-note/prisma/migrations/20260426140000_ensure_agent_schedule_columns/migration.sql b/memento-note/prisma/migrations/20260426140000_ensure_agent_schedule_columns/migration.sql
new file mode 100644
index 0000000..3faa9a9
--- /dev/null
+++ b/memento-note/prisma/migrations/20260426140000_ensure_agent_schedule_columns/migration.sql
@@ -0,0 +1,16 @@
+-- Ensure agent schedule columns exist (idempotent)
+-- Handles both: fresh DB (columns missing) and DB where columns were added by db push
+DO $$ BEGIN
+  ALTER TABLE "Agent" ADD COLUMN "scheduledTime" TEXT DEFAULT '08:00';
+EXCEPTION WHEN duplicate_column THEN NULL;
+END $$;
+
+DO $$ BEGIN
+  ALTER TABLE "Agent" ADD COLUMN "scheduledDay" INTEGER;
+EXCEPTION WHEN duplicate_column THEN NULL;
+END $$;
+
+DO $$ BEGIN
+  ALTER TABLE "Agent" ADD COLUMN "timezone" TEXT;
+EXCEPTION WHEN duplicate_column THEN NULL;
+END $$;