[BUG] Claude Code extension causing abnormal background requests leading to rapid rate limit exhaustion

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?

After installing a new Claude Code VS Code extension, I am experiencing extremely high and abnormal usage of my Claude account.

Even without actively sending prompts, my usage:

spikes rapidly in the background
hits hourly limits within a very short time (~1 hour or less)
behaves as if automated requests are being sent continuously

This resulted in my account being flagged and suspended for “high volume exchanges,” even though I did not intentionally generate such traffic.

What Should Happen?

• Claude Code should only send requests when explicitly triggered by user actions
• No background or automatic looping requests should occur without user interaction
• Usage should scale based on real user activity, not silently in the background

Error Messages/Logs

No explicit error messages are shown.

However:

Usage increases abnormally fast
No visible prompts correspond to the volume of requests
Behavior suggests hidden or repeated background calls

Steps to Reproduce

1. Install Claude Code extension in VS Code
2. Open a project workspace
3. Keep VS Code running (even without active prompts)
4. Observe account usage over time

👉 Result:

Usage increases rapidly without proportional manual interaction
Hourly limits are reached unexpectedly

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.84

Claude Code Version

2.1.84

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

No evidence of account compromise (all logged-in devices are mine)
Behavior strongly suggests unintended automated requests from extension or integration
This may lead to false-positive abuse detection and account suspension