[Bug] GitHub MCP server connection fails when spawned by Claude Code on Windows

Bug Description
github MCP server connects manually but fails when spawned by Claude Code on Windows.

Environment Info

• Platform: win32
• Terminal: vscode
• Version: 2.1.126
• Feedback ID: 9e6da846-65b4-4fa8-bb7b-0d81975f0c0a

Errors

[{"error":"nUH: Failed to install new version of claude:  npm error code EBUSY\nnpm error syscall copyfile\nnpm error path C:\\Users\\ernes\\AppData\\Roaming\\npm\\node_modules\\@anthropic-ai\\claude-code\\node_modules\\@anthropic-ai\\claude-code-win32-x64\\claude.exe\nnpm error dest C:\\Users\\ernes\\AppData\\Roaming\\npm\\node_modules\\@anthropic-ai\\.claude-code-J6HJmr6D\\node_modules\\@anthropic-ai\\claude-code-win32-x64\\claude.exe\nnpm error errno -4082\nnpm error EBUSY: resource busy or locked, copyfile 'C:\\Users\\ernes\\AppData\\Roaming\\npm\\node_modules\\@anthropic-ai\\claude-code\\node_modules\\@anthropic-ai\\claude-code-win32-x64\\claude.exe' -> 'C:\\Users\\ernes\\AppData\\Roaming\\npm\\node_modules\\@anthropic-ai\\.claude-code-J6HJmr6D\\node_modules\\@anthropic-ai\\claude-code-win32-x64\\claude.exe'\nnpm error A complete log of this run can be found in: C:\\Users\\ernes\\AppData\\Local\\npm-cache\\_logs\\2026-05-12T01_37_42_411Z-debug-0.log\n    at bY8 (B:/~BUN/root/src/entrypoints/cli.js:2822:2203)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-12T01:37:43.012Z"}]