[BUG] Same crash on my machine —

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?

Same crash on my machine — deterministic segfault at address 0x3C.

Environment

• Windows 11 build 26200 (Windows v10.26200), x64
• Claude Desktop app managed Claude Code: 2.1.227 (%APPDATA%\Claude\claude-code\2.1.227\claude.exe)
• Bun v1.4.0 (eb835313a) Windows x64 (baseline)
• CPU: sse42 avx avx2 avx512, RAM 64GB

Symptom
Every launch of the desktop-app-managed binary crashes immediately
("Claude Code process exited with code 3"), e.g. when resuming a Cowork
task or using "Ask Claude to commit and push". The npm/Node install of
the same package works fine in the terminal, so this is specific to the
Bun-compiled standalone executable.

What Should Happen?

Same crash on my machine — deterministic segfault at address 0x3C.

Environment

• Windows 11 build 26200 (Windows v10.26200), x64
• Claude Desktop app managed Claude Code: 2.1.227 (%APPDATA%\Claude\claude-code\2.1.227\claude.exe)
• Bun v1.4.0 (eb835313a) Windows x64 (baseline)
• CPU: sse42 avx avx2 avx512, RAM 64GB

Symptom
Every launch of the desktop-app-managed binary crashes immediately
("Claude Code process exited with code 3"), e.g. when resuming a Cowork
task or using "Ask Claude to commit and push". The npm/Node install of
the same package works fine in the terminal, so this is specific to the
Bun-compiled standalone executable.

Error Messages/Logs

Same crash on my machine — deterministic segfault at address 0x3C.

**Environment**
- Windows 11 build 26200 (Windows v10.26200), x64
- Claude Desktop app managed Claude Code: 2.1.227 (`%APPDATA%\Claude\claude-code\2.1.227\claude.exe`)
- Bun v1.4.0 (eb835313a) Windows x64 (baseline)
- CPU: sse42 avx avx2 avx512, RAM 64GB

**Symptom**
Every launch of the desktop-app-managed binary crashes immediately
("Claude Code process exited with code 3"), e.g. when resuming a Cowork
task or using "Ask Claude to commit and push". The npm/Node install of
the same package works fine in the terminal, so this is specific to the
Bun-compiled standalone executable.

Steps to Reproduce

Same crash on my machine — deterministic segfault at address 0x3C.

Environment

• Windows 11 build 26200 (Windows v10.26200), x64
• Claude Desktop app managed Claude Code: 2.1.227 (%APPDATA%\Claude\claude-code\2.1.227\claude.exe)
• Bun v1.4.0 (eb835313a) Windows x64 (baseline)
• CPU: sse42 avx avx2 avx512, RAM 64GB

Symptom
Every launch of the desktop-app-managed binary crashes immediately
("Claude Code process exited with code 3"), e.g. when resuming a Cowork
task or using "Ask Claude to commit and push". The npm/Node install of
the same package works fine in the terminal, so this is specific to the
Bun-compiled standalone executable.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.220

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_