diff --git a/packages/prisma/migrations/20260407000000_add_composite_indexes_for_scale/migration.sql b/packages/prisma/migrations/20260407000000_add_composite_indexes_for_scale/migration.sql
new file mode 100644
index 00000000000000..f5a2ac1903f45e
--- /dev/null
+++ b/packages/prisma/migrations/20260407000000_add_composite_indexes_for_scale/migration.sql
@@ -0,0 +1,16 @@
+-- User: optimize login/verification lookups.
+-- The User table has low write volume (account creation/updates) relative to
+-- the high read frequency of auth queries, making this a safe addition.
+CREATE INDEX CONCURRENTLY IF NOT EXISTS "users_email_emailVerified_idx"
+ON "users" ("email", "emailVerified");
+
+-- Availability: optimize schedule-based date range lookups.
+-- Availability has 3 existing indexes. This composite covers the common
+-- query pattern of fetching schedule slots within a date range.
+CREATE INDEX CONCURRENTLY IF NOT EXISTS "Availability_scheduleId_date_idx"
+ON "Availability" ("scheduleId", "date");
+
+-- Availability: optimize user-based date range lookups.
+-- Covers the common pattern of fetching a user's availability for a date range.
+CREATE INDEX CONCURRENTLY IF NOT EXISTS "Availability_userId_date_idx"
+ON "Availability" ("userId", "date");
diff --git a/packages/prisma/schema.prisma b/packages/prisma/schema.prisma
index 86a550d252913b..63cad7d4c6d020 100644
--- a/packages/prisma/schema.prisma
+++ b/packages/prisma/schema.prisma
@@ -531,6 +531,7 @@ model User {
   @@index([emailVerified])
   @@index([identityProvider])
   @@index([identityProviderId])
+  @@index([email, emailVerified])
   @@map(name: "users")
 }
 
@@ -998,6 +999,8 @@ model Availability {
   @@index([userId])
   @@index([eventTypeId])
   @@index([scheduleId])
+  @@index([scheduleId, date])
+  @@index([userId, date])
 }
 
 model SelectedCalendar {