[BUG] High memory consumption when running Claude Code in multiple IntelliJ projects

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

Running Claude Code simultaneously in two different IntelliJ IDEA projects causes significant slowdowns and triggers the IDE memory warning: "The IDE is running low on memory and this might affect performance. Please consider increasing the heap size."

Environment

• OS: macOS 26.1 (25B78)
• Hardware: MacBook Pro M4
• IDE: IntelliJ IDEA 2025.2.5 (Ultimate Edition)
• Claude Code: 2.0.57

What Should Happen?

Claude Code should manage memory efficiently when running in multiple IDE instances without causing performance degradation or memory warnings.

Error Messages/Logs

The IDE is running low on memory and this might affect performance. Please consider increasing the heap size.

Steps to Reproduce

1. Open two projects in separate IntelliJ windows
2. Start Claude Code in both
3. Use Claude Code in each project

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.57

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

_No response_