[BUG] "Thought for X seconds" counter keeps increasing when reopening the panel*

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?

Description:
When opening and closing the "Thought for X seconds" panel in Claude Code (VS Code extension), the number increases every time I expand it — even though Claude has finished thinking.

Example:
The panel showed "Thought for 2s" the first time. After closing and reopening it, it showed "Thought for 49s" — without Claude having done any work in between.

Expected behavior:
The number should be static and display the actual time Claude spent thinking.

Actual behavior:
The number increases every time the panel is expanded, as if a timer is restarted or recalculated incorrectly.

Environment:

• Claude Code in Visual Studio Code

Impact:
This is confusing and misleading, as it looks like Claude is still working or consuming resources.

What Should Happen?

Description:
When opening and closing the "Thought for X seconds" panel in Claude Code (VS Code extension), the number increases every time I expand it — even though Claude has finished thinking.

Example:
The panel showed "Thought for 2s" the first time. After closing and reopening it, it showed "Thought for 49s" — without Claude having done any work in between.

Expected behavior:
The number should be static and display the actual time Claude spent thinking.

Actual behavior:
The number increases every time the panel is expanded, as if a timer is restarted or recalculated incorrectly.

Environment:

• Claude Code in Visual Studio Code

Impact:
This is confusing and misleading, as it looks like Claude is still working or consuming resources.

Error Messages/Logs

Steps to Reproduce

Actual behavior:
The number increases every time the panel is expanded, as if a timer is restarted or recalculated incorrectly.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.133

Claude Code Version

2.1.133

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_