[BUG] Sessions get interrupted automatically without any error logging

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?

When I input a prompt that generates subagents or uses the Explore Agent, all sessions interrup after a few seconds, like I pressed escape to interrupt it manually. After that, any other prompt interrupts automatically.
Version: 2.1.79

• OS: macOS Darwin 24.6.0, Apple Terminal
• Symptom: "Interrupted · What should Claude do instead?" appears seconds after prompt, specifically after subagent/Explore tool calls complete
• Debug log shows no error — session ends silently
• Not caused by: RAM, keyboard, MCP servers, plugins, terminal, rate limits
• Coworkers with same setup are not affected

b188b457-7df2-48bb-a40a-5b005fbc2133.txt

What Should Happen?

Claude agents shouldn't interrupt

Error Messages/Logs

Steps to Reproduce

Anything that produces subagents or tries to read larger files, or the CLAUDE.md that is 1171 lines total, it creates this bug.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.79

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_