[BUG] /context truncated or incorrect on VS Code extension

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?

I'm seeing a very brief, looks truncated, output from /context within the VS Code extension. I'm seeing a very different output when running Claude Code through the terminal in VS Code. Here is a screenshot of what im seeing. I'm on version 2.0.13 of the extension.

<img width="1473" height="1143" alt="Image" src="https://github.com/user-attachments/assets/ce95b04e-6ab3-4971-9e9b-3f2fc5cab4ac" />

<img width="1473" height="1143" alt="Image" src="https://github.com/user-attachments/assets/9836c88e-3b12-47cd-be62-8ad15c4ef8ad" />

What Should Happen?

Expecting the full context output, something like this from the CLI version.

<img width="1265" height="614" alt="Image" src="https://github.com/user-attachments/assets/0950b250-5a9b-4446-82b2-8f60d3b275b0" />

Error Messages/Logs

Steps to Reproduce

1. Open the VS Code extension, login if necessary
2. Run /context see the output as described.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.9

Claude Code Version

2.0.13

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_