[BUG] Claude Code not detecting VSCode

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.73
• Operating System: macOS 15.6
• Terminal: VSCode

Bug Description

Claude Code does not detect VS Code. Extension is installed – see log below. When I run /ide I get:

harryvangberg@bbblue rokko % claude
╭───────────────────────────────────────────────────╮
│ ✻ Welcome to Claude Code!                         │
│                                                   │
│   /help for help, /status for your current setup  │
│                                                   │
│   cwd: /Users/harryvangberg/git/rokko             │
╰───────────────────────────────────────────────────╯


 What's new:
  • MCP: Support multiple config files with `--mcp-config 
  file1.json file2.json`
  • MCP: Press Esc to cancel OAuth authentication flows
  • Bash: Improved command validation and reduced false 
  security warnings
  • UI: Enhanced spinner animations and status line visual 
  hierarchy
  • Linux: Added support for Alpine and musl-based 
  distributions (requires separate ripgrep installation)

 ※ Tip: Press Esc twice to edit your previous messages

╭─────────────────────────────────────────────────────────────╮
│                                                             │
│  Select IDE                                                 │
│  Connect to an IDE for integrated development features.     │
│                                                             │
│  No available IDEs detected. Make sure your IDE has the     │
│  Claude Code extension or plugin installed and is running.  │
│                                                             │
│  Found 1 other running IDE(s). However, their               │
│  workspace/project directories do not match the current     │
│  cwd.                                                       │
│                                                             │
│     • Visual Studio Code: /Users/harryvangberg/git/rokko    │
│                                                             │
╰─────────────────────────────────────────────────────────────╯
 Esc to exit

But as you see, the workspace directories are indeed identical.

Steps to Reproduce

N/A

Expected Behavior

Claude Code detects VS Code.

Actual Behavior

Claude Code does not detect VS Code.

Additional Context

Claude Code extension log:

2025-08-12 13:48:49.017 [info] Claude code extension is now active?
2025-08-12 13:48:49.017 [info] MCP Server running on port 24172 (localhost only)