[BUG] Incorrect Increment in “Thinking Duration” When Opening Dropdown

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 Code extension, each time I tap the “Thinking duration” dropdown (e.g., “Thought for _s”), the displayed duration increases automatically.

What Should Happen?

Opening the response's “Thinking duration” dropdown should not change the displayed duration.

Error Messages/Logs

Steps to Reproduce

1. Open the Claude Code extension in VS Code.
2. Enable “Thinking” mode.
3. Enter a prompt and wait for the response.
4. In the response, tap the “Thought for _s” (Thinking duration) dropdown arrow.
5. Observe that the displayed duration increases automatically each time the dropdown is opened.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.81

Platform

Other

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_