[BUG] [Mobile/Android] Stop button persists after agent completes, blocking new message input

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?

Bug Description

On Claude Code mobile (Android), the "Stop" button remains visible after the agent has completed its response, preventing users from sending new messages. The "Send" button does not reappear as it should.

Expected Behavior

• When agent completes response → "Stop" button should change to "Send" button
• User should be able to send new messages immediately

Actual Behavior

• Agent completes response
• "Stop" button remains visible
• Cannot send new messages from mobile app
• Web version works correctly (shows "Send" button properly)

Environment

• Platform: Android (Claude Code Mobile App)
• Issue present on: Mobile only
• Not present on: Web version works fine

Impact

• Severity: Medium - Blocks all interaction from mobile app
• Workaround: Use web version instead

What Should Happen?

Claude/Mobile shouldn't get stuck after making changes to the repo but allow for the next prompt to be sent.

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce

1. Open Claude Code mobile app on Android
2. Send a message to the agent
3. Wait for agent to complete response
4. Observe: "Stop" button remains, "Send" button does not appear
5. Compare: Open same session in web browser - works correctly

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Web

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

This is for the web version