[BUG] macOs - Claude consumes massive diskspace (472GB) in ~/.claude/debug and ~/Library/Caches/claude-cli-nodejs/<project>/--mcp-logs-*

[soultech67]

Preflight Checklist

• I have searched existing issues and this hasn't been reported yet
• This is a single bug report (please file separate reports for different bugs)
• I am using the latest version of Claude Code

What's Wrong?

My Apple M1 Max with a 1TB drive failed to update macOs last night due to low diskspace, which surprised me. I used DaisyDisk to dig into the issue and discovered folders taking up 472GB, both related to Claude CLI. ~/.claude/debug and ~/Library/Caches/claude-cli-nodejs/<project>/--mcp-logs-*

These are my configured MCPs

> claude mcp list
Checking MCP server health...

projectsFilesystem: npx -y @modelcontextprotocol/server-filesystem /Users/scott/projects - ✓ Connected
fetch-mcp: node /Users/scott/Documents/Cline/MCP/fetch-mcp/dist/index.js - ✗ Failed to connect
mcp-supermemory-ai: npx -y mcp-remote@latest https://mcp.supermemory.ai/EVUo7xW9DwG1xi7i5fvjM/sse - ✗ Failed to connect
brave-search: npx -y @modelcontextprotocol/server-brave-search - ✓ Connected
fudger-codebase: /Users/scott/projects/fudger-mcp/mcp-server /Users/scott/projects/fudger - ✓ Connected
fudger-svc-codebase: /Users/scott/projects/fudger-mcp/mcp-server /Users/scott/projects/fudger-svc - ✓ Connected

I don't use the --debug or --mcp-debug flags with Claude CLI.

I generally use it via JetBrains Claude CLI plugin and start up with the defaults.

I'm trying to consider the time-frame of the log accumulation, I think its been mostly over the past 4 or 5 months that I've heavily used Claude CLI as a regular tool in my dev toolbox.

This is a massive amount if disk space accumulation.

After investigation, today I added "cleanupPeriodDays": 4 to my ~/.claude/settings.json file

What Should Happen?

Claude should either clean up or otherwise better manage and surface debug and log storage accumulation

Error Messages/Logs

Your Disk Has < 5GB space remaining, unable to install OS updates

Steps to Reproduce

Use Claude Code via JetBrains on a regular, daily basis

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

No response

Claude Code Version

2.1.12 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

No response

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] Infinite logging loop in debug files causes 200GB+ disk usage #16093
2. [BUG] Subagent search on ~/.claude causes multi-GB log bloat and /resume crash #18682
3. [BUG] FileHistory bug: 4.2GB crash from parallel agents (Jan 2026) #18687

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[github-actions]

Closing for now — inactive for too long. Please open a new issue if this is still relevant.

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.