[BUG] RAM usage continuously grows while idle - Windows 11

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?

Version: Claude Code 2.1.90
OS: Windows 11 Home 10.0.26200

Behavior: RAM usage grows continuously even while the session is idle (no tool calls, no messages). This appears to be an unbounded leak rather than normal context growth.

I can visibly watch task manager while having Claude Code idle in my terminal doing nothing and see the Memory usage continuously go up every 500ms. Within the time of writing this issue up, it has grown to 5,525 MB Memory used while completely idle doing nothing.

What Should Happen?

No memory leak

Error Messages/Logs

Steps to Reproduce

run 'claude' in console

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.90

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_