[BUG] Claude Code hangs indefinitely after Glob "**/*.h" with 101 results — Stop button unresponsive

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?

Version: Claude Code VSCode Extension
OS: Windows 11 Pro 10.0.26200
Model: claude-sonnet-4-6
Claude Code became completely unresponsive for 30+ minutes after a Glob tool call
returned 101 results (pattern: "**/*.h"). The UI showed "Forging..." indefinitely.
The Stop/Interrupt button was visible but did not respond to clicks.
The only recovery option was to forcefully close VSCode.

What Should Happen?

Either completes the task or the Stop button interrupts execution.

Error Messages/Logs

Steps to Reproduce

1. Ask Claude to find where a macro is defined in a C project
2. Claude reads main.c, then runs Glob pattern "**/*.h"
3. Glob returns 101 files
4. Claude hangs at the next step ("Forging..." state) indefinitely

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Claude Code VSCode Extension

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_