[BUG] /context in Claude Code for VS Code causes request spikes and may trigger rate limits or DoS protection

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?

When using the /context command in Claude Code for VS Code, a large number of requests are generated within a short period. This easily triggers API rate limiting and may even get blocked due to false detection of a DoS attack.

In version 3.4, I observed a sudden surge in request volume upon executing this command, which disrupts normal usage.

What Should Happen?

The /context command should operate without triggering an abnormal request storm and should avoid sending excessive requests to the API within a short time frame. Even when gathering context, it must not result in rate limiting or security-based blocking.

Error Messages/Logs

Steps to Reproduce

1. Use Claude Code for VS Code, version 3.4.
2. Run the /context command.
3. Observe a significant spike in network requests/traffic within a short period.
4. This may trigger API rate limits, or get flagged and blocked by security systems as suspected DoS activity.
5. The attached screenshot illustrates the sharp surge in data volume when executing this command.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

3.4 之前的版本

Claude Code Version

3.4

Platform

Other

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

补充说明：问题主要发生在 Claude Code for VS Code 场景下；图中可见 /context 执行期间请求/流量在短时间内显著飙升。希望能优化 /context 的请求节流、批处理或缓存策略。