Keyboard-bindable command for inserting editor selection with @-mention

What variant of Codex are you using?

IDE Extension

What feature would you like to see?

A Command, that I can bind to a keyboard shortcut, that inserts an @-mention instead of baking the context into the top of the chat pod like the existing chatgpt.addToThread command does.

Additional information

Currently, the chatgpt.addToThread command adds context like this:

<img width="476" height="202" alt="Image" src="https://github.com/user-attachments/assets/1459d8cc-fa00-4f5d-b2d5-cd9c580074fb" />

I would like to have it be inline with my text () so I can reference it. It's a much nicer UX and more flexible. It's what Cursor and Claude Code do.

Of course, you can simply just start typing @ and select a file.

<img width="473" height="262" alt="Image" src="https://github.com/user-attachments/assets/c5c4aad9-668b-418a-a6af-a32575914378" />

But there are shortcomings with that:

• You can't specify a line number or range
• You can't have it originate from a text-selection in the editor
• There's no keyboard shortcut for it!

FWIW, Claude Code's VSCode extension has a claude-vscode.insertAtMention which is exactly what I'd like.