[Bug] Memory mode (#) shortcut not implemented in Claude Code CLI

Bug Description
I'm watching your "Claud code in action" video on "Adding context", and it shows that pushing the pound sign (#) puts you in memory mode. But when I use it in claude in the terminal, both in Visual Studio Code and natively in Terminal on my MacBook, it doesn't work, and I get a comment "The # menu from the tutorial likely came from a different tool (Cursor, Windsurf, etc.) or a feature that hasn't shipped yet." This is odd...

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.1.132
• Feedback ID: 0c3cac1b-5a2d-4418-bec6-6a37334208a8

Errors

[{"error":"Error: 1: Command failed with ERR_STREAM_PREMATURE_CLOSE: code --force --install-extension anthropic.claude-code\nPremature close \n    at Ht1 (/$bunfs/root/src/entrypoints/cli.js:1577:4203)\n    at async ts1 (/$bunfs/root/src/entrypoints/cli.js:1577:1435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-08T02:39:16.472Z"}]