[BUG]

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?

Once I upgrade from 2.1.4 to 2.1.5, Claude cannot execute my R code for me anymore:
Bash(Rscript meta_analysis/bulk3/R/06_pathway_enrichment.R 2>&1) timeout: 5m 0s
⎿ Error: EACCES: permission denied, open '/tmp/claude/-Users-ge-Documents-vitiligo/tasks/b74f5a2.output'

And this persists. I can execute the code just fine if I do it manually.

I downgraded to 2.1.4 and it works fine. Same code. Same set up as regular user, not superuser.

I am MacOS Tahoe 26.2.

What Should Happen?

Claude Code should be able to execute code.

Error Messages/Logs

Bash(Rscript meta_analysis/bulk3/R/06_pathway_enrichment.R 2>&1) timeout: 5m 0s
  ⎿  Error: EACCES: permission denied, open '/tmp/claude/-Users-ge-Documents-vitiligo/tasks/b74f5a2.output'

Steps to Reproduce

1. Ask Claude to create a simple R code that write an out file.
2. Ask Claude to execute that code.
3. See error.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.4

Claude Code Version

2.1.5

Platform

Other

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_