[BUG] Unmonitored greps

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 greps should have very limited timout, otherwise it could just endup using too much cpu and and burn it down

What Should Happen?

Not grep everything without supervision.

Error Messages/Logs

Just using 8 cores 100%, all using grep and Claude code is stuck

Steps to Reproduce

Just ask it to find dead code in a large repo with node modules and rust

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.77

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

I think best is avoid letting command that can obviously can go rogue run for longer without supervisor