diff --git a/apps/ios/Sources/Calendar/CalendarService.swift b/apps/ios/Sources/Calendar/CalendarService.swift
index 01854345c86..e11a6ee4075 100644
--- a/apps/ios/Sources/Calendar/CalendarService.swift
+++ b/apps/ios/Sources/Calendar/CalendarService.swift
@@ -46,7 +46,7 @@ final class CalendarService: CalendarServicing {
         let status = EKEventStore.authorizationStatus(for: .event)
         let authorized: Bool
         if status == .notDetermined {
-            authorized = await Self.requestEventAccess(store: store)
+            authorized = await Self.requestWriteOnlyEventAccess(store: store)
         } else {
             authorized = EventKitAuthorization.allowsWrite(status: status)
         }
@@ -121,6 +121,22 @@ final class CalendarService: CalendarServicing {
         }
     }
 
+    private static func requestWriteOnlyEventAccess(store: EKEventStore) async -> Bool {
+        if #available(iOS 17.0, *) {
+            return await withCheckedContinuation { continuation in
+                store.requestWriteOnlyAccessToEvents { granted, _ in
+                    continuation.resume(returning: granted)
+                }
+            }
+        }
+
+        return await withCheckedContinuation { continuation in
+            store.requestAccess(to: .event) { granted, _ in
+                continuation.resume(returning: granted)
+            }
+        }
+    }
+
     private static func resolveCalendar(
         store: EKEventStore,
         calendarId: String?,
diff --git a/apps/ios/Sources/Contacts/ContactsService.swift b/apps/ios/Sources/Contacts/ContactsService.swift
index 36e507c9a42..d38bc7a923c 100644
--- a/apps/ios/Sources/Contacts/ContactsService.swift
+++ b/apps/ios/Sources/Contacts/ContactsService.swift
@@ -103,11 +103,8 @@ final class ContactsService: ContactsServicing {
         case .authorized, .limited:
             return true
         case .notDetermined:
-            return await withCheckedContinuation { continuation in
-                store.requestAccess(for: .contacts) { granted, _ in
-                    continuation.resume(returning: granted)
-                }
-            }
+            // Avoid prompting during node.invoke; headless/unattended flows should fail fast.
+            return false
         case .restricted, .denied:
             return false
         @unknown default:
diff --git a/apps/ios/Sources/Info.plist b/apps/ios/Sources/Info.plist
index a3125becdcc..8950acf4b01 100644
--- a/apps/ios/Sources/Info.plist
+++ b/apps/ios/Sources/Info.plist
@@ -54,6 +54,8 @@
 	<string>OpenClaw uses your calendars to show events and scheduling context when you enable calendar access.</string>
 	<key>NSCalendarsFullAccessUsageDescription</key>
 	<string>OpenClaw uses your calendars to show events and scheduling context when you enable calendar access.</string>
+	<key>NSCalendarsWriteOnlyAccessUsageDescription</key>
+	<string>OpenClaw uses your calendars to add events when you enable calendar access.</string>
 	<key>NSContactsUsageDescription</key>
 	<string>OpenClaw uses your contacts so you can search and reference people while using the assistant.</string>
 	<key>NSLocalNetworkUsageDescription</key>
diff --git a/apps/ios/project.yml b/apps/ios/project.yml
index 67522e4e617..f345eac5baf 100644
--- a/apps/ios/project.yml
+++ b/apps/ios/project.yml
@@ -136,6 +136,7 @@ targets:
         NSCameraUsageDescription: OpenClaw can capture photos or short video clips when requested via the gateway.
         NSCalendarsUsageDescription: OpenClaw uses your calendars to show events and scheduling context when you enable calendar access.
         NSCalendarsFullAccessUsageDescription: OpenClaw uses your calendars to show events and scheduling context when you enable calendar access.
+        NSCalendarsWriteOnlyAccessUsageDescription: OpenClaw uses your calendars to add events when you enable calendar access.
         NSContactsUsageDescription: OpenClaw uses your contacts so you can search and reference people while using the assistant.
         NSLocationWhenInUseUsageDescription: OpenClaw uses your location when you allow location sharing.
         NSLocationAlwaysAndWhenInUseUsageDescription: OpenClaw can share your location in the background when you enable Always.