[Bug] /doctor Command Fails: DNS Resolution Error for updates.claude.ai

Bug Description
Claude Code /doctor Command Bug Report

Issue: /doctor command returns "(no content)" instead of system diagnostics

Root Cause: Command attempts to connect to non-existent domain updates.claude.ai (DNS NXDOMAIN)

Evidence:

• nslookup updates.claude.ai → server can't find domain
• dig updates.claude.ai → NXDOMAIN status
• claude.ai domain exists, but updates.claude.ai subdomain does not

Impact:

• /doctor command non-functional across all installations
• Silent failure provides no error context to users
• Core Claude Code functionality unaffected

Environment:

• Claude Code v1.0.117
• macOS Darwin 24.6.0
• Reproduced after clean reinstall

Expected Behavior: /doctor should either connect to valid update server or display meaningful error message

Suggested Fix: Update hardcoded domain reference or create missing updates.claude.ai subdomain

Workaround: None needed - issue only affects diagnostic command, not core functionality

Environment Info

• Platform: darwin
• Terminal: cursor
• Version: 1.0.117
• Feedback ID: 7f02dc6d-4bd7-45f4-9bce-5ca2edf7112e

Errors

[]