[BUG] Button hidden behind X button in Cowork connector tool calls sidebar (macOS)

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?

In the Claude for Mac desktop app (Cowork/Chat mode — not Claude Code CLI), when the sidebar showing connector tool calls is open and focused, the X (close) button overlaps another UI button behind it.

See attached screenshot.

https://github.com/user-attachments/assets/25ca2ca7-6d54-44d3-9681-0ba916e271e5

What Should Happen?

Both buttons should be visible and individually clickable with no overlap. The X (close) button and the button behind it should be properly positioned so neither obscures the other.

Error Messages/Logs

Steps to Reproduce

1. Open the Claude for Mac desktop app
2. 2. Navigate to the Cowork tab and start a chat
3. 3. Trigger a connector tool call so the sidebar appears
4. 4. Focus the sidebar
5. 5. Observe the X (close) button area — another button is visually hidden behind it

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

N/A — this bug is in the Claude for Mac desktop Chat/Cowork app, not Claude Code CLI

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This bug is in the Claude for Mac desktop app (Chat/Cowork UI), NOT the Claude Code CLI. Filing here because area:desktop covers Mac desktop app issues.

Device: MacBook M1