[BUG] Claude Code API severely degraded, Claude.ai web normal - diagnostic data attached

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?

Claude Code API severely degraded, Claude.ai web normal - diagnostic data attached

What Should Happen?

Environment:

• Claude Code v2.1.117
• Windows 10
• Account: Claude Max
• Model: Sonnet 4.6, low effort
• Location: South Korea

Symptom: Extreme latency on all tool calls
- Simple "git status --short" takes 2-3 minutes

• Thinking time 80-160 seconds for trivial operations
• Web chat (claude.ai) on same account works normally fast

Verified NOT the cause:

• Network: curl to api.anthropic.com = 0.5s (10 sequential tests stable)
• Local tools: git status completes in <1s locally
• Client version: latest (2.1.117)
• Session: /clear did not help
• Effort: /effort low did not help
• Model: Same issue on Opus 4.6, Opus 4.7, Sonnet 4.6
• MCP servers: removed all, issue persists

Conclusion: Claude Code API path appears degraded while
claude.ai web path is unaffected. Status page shows Operational.

Impact: Cannot use Claude Code productively today.

Error Messages/Logs

⏵⏵ bypass permissions on (shift+tab to cycle) · esc to interrupt
 ▐▛███▜▌   Claude Code v2.1.117
▝▜█████▛▘  Sonnet 4.6 with low effort · Claude Max
  ▘▘ ▝▝    D:\app\HAI

❯ git status --short

● Bash(git status --short)
  ⎿   M scripts/upload-backend.ps1
      M scripts/upload-desktop-web.ps1
      M scripts/upload-frontend.ps1 

● 워킹 트리에 수정된 파일 3개가 있습니다 (스테이징 안 됨):
                                                                                                                                                                                                              - scripts/upload-backend.ps1
  - scripts/upload-desktop-web.ps1                                                                                                                                                                            - scripts/upload-frontend.ps1
                                                                                                                                                                                                            ✻ Sautéed for 2m 42s <----------------- !!!!!!!!

Steps to Reproduce

i was type just
git status --short

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.117

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_