[BUG] JetBrains plugin: io.ktor.network.sockets causes ~100% CPU usage in background

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?

The Claude Code [Beta] JetBrains plugin causes io.ktor.network.sockets to consume ~100% CPU in the background, even when the plugin is not actively being used.
Environment:

IDE: GoLand
Plugin: Claude Code [Beta] v2.1.133
OS: macOS

Steps to reproduce:

Install Claude Code plugin in GoLand
Start GoLand and leave it idle
Open Activity Monitor and inspect the GoLand process

Expected behavior:
CPU usage should be near 0% when the plugin is idle.
Actual behavior:
Plugin Claude Code [Beta]: io.ktor.network.sockets consistently uses ~99-197% CPU in the background, causing the machine to overheat.
Additional notes:

Restarting GoLand temporarily resolves the issue, but it recurs after a short time
The issue has been reproduced multiple times over several days

<img width="1280" height="452" alt="Image" src="https://github.com/user-attachments/assets/ab84c568-b8a8-4139-949a-5b6aba4629db" />

What Should Happen?

The plugin should have near 0% CPU usage when idle and not actively processing any requests.

Error Messages/Logs

Steps to Reproduce

1. Install Claude Code [Beta] plugin in GoLand
2. Start GoLand and open any project
3. Leave GoLand idle (do not actively use the Claude Code plugin)
4. Open Activity Monitor and select the GoLand process
5. Click "Inspect" to view subsystem CPU usage

Result: Plugin Claude Code [Beta]: io.ktor.network.sockets shows ~99-197% CPU usage persistently.

Note: The issue recurs automatically after restarting GoLand, typically within minutes.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.147 (Claude Code)

Platform

Other

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This issue occurs specifically with the JetBrains GoLand plugin,
not the CLI version of Claude Code.