[BUG] Remote Control push notifications on iOS: silent banner, no sound, no vibration

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Title: Remote Control push notifications on iOS: silent banner, no sound, no vibration
Environment:
• Claude Code: latest (running on Windows 11)
• Claude iOS app: latest
• Device: iPhone (iOS), 5G connection
• Feature: Remote Control + PushNotification tool
Expected behavior:
• When PushNotification tool fires and terminal is unfocused, mobile push should arrive with sound and/or vibration per iOS user settings.
Actual behavior:
• Banner appears on lock screen ✅
• No sound ❌
• No vibration ❌ (even though “การสั่น = สั่นเสมอ” / “Vibrate Always” is set)
iOS settings verified (all correct):
• Settings → Notifications → Claude:
• อนุญาตการแจ้งเตือน (Allow Notifications): ON ✅
• Lock Screen / Notification Center / Banners: all ✅
• Sounds: ON ✅
• Badges: ON ✅
• Settings → Sounds & Haptics:
• System volume: ~60%
• Vibration: “Always” (สั่นเสมอ) ✅
• Ring/Silent switch: in ring position (not silent) ✅
• Focus / Do Not Disturb: OFF ✅
• Tested with other apps (LINE): sound plays correctly → confirms iOS audio system is fine
Hypothesis:
• Claude iOS app push payload likely missing aps.sound field
• May also be sent as silent/background push, which would explain missing vibration too
Reproduction:

1. Connect Remote Control between Claude Code (desktop) and Claude iOS app
2. Lock iPhone or background the Claude app
3. From Claude Code, trigger PushNotification tool
4. Observe: banner only, no sound, no vibration

Impact:
• Hard to know when Claude needs attention — defeats purpose of mobile push for long-running tasks
• Vibration not working is more critical than sound — even silent mode users expect haptic feedback

What Should Happen?

Iphone should notify with sound and vibrating

Error Messages/Logs

No error

Steps to Reproduce

Notify on iphone

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.126

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_