[BUG] Send/submit arrow button missing from Code tab input area (Windows desktop app)

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?

The send/submit arrow button that previously appeared in the Code tab's text input area is no longer visible in the Windows desktop app. The button was present and working consistently until a computer reboot on 2026-04-11. No app update occurred — the app remains at version 1.1617.0.0 (Microsoft Store).

Only the microphone icon, model selector, and permission mode dropdown are visible in the input area. No send arrow. Users must press Enter to submit, with no clickable alternative.

Troubleshooting attempted (all failed):

• Cleared GPUCache folder
• Cleared all render caches (Cache, Code Cache, DawnGraphiteCache, DawnWebGPUCache)
• Full app data reset (renamed %appdata%\Claude) — fresh app state, send button still missing

The full data reset proving the button is still absent with completely fresh app state suggests this is a server-side UI change, not a local issue.

What Should Happen?

A send arrow/button should appear in the Code tab input area (near the model selector dropdown), allowing users to click to submit their message — same as the Chat tab behavior. The Claude Code desktop docs reference this button: "pick a model from the dropdown next to the send button."

Error Messages/Logs

Steps to Reproduce

1. Open Claude desktop app on Windows (version 1.1617.0.0, Microsoft Store)
2. Navigate to the Code tab
3. Select a project folder and branch
4. Type text in the input area
5. Observe: no send/submit arrow button appears. Only microphone icon, model selector, and permission mode dropdown visible.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.92 (desktop app 1.1617.0.0)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_