Cursor is not giving me an option to use @Codebase

I am using cursor on this repo:

tree -L 2

.
├── LICENSE.md
├── README.md
├── actions.py
├── agents.py
├── dynasaur.py
├── env.py
├── prompts.py
├── requirements.txt
├── scripts
│ ├── llm_engines.py
│ ├── reformulator.py
│ ├── run_agents.py
│ └── tools
└── utils.py

and as I was asking it this question
create a .gitignore file for this basic python repo @
it never prompted @Codebase and thus was not able to use it

here is the metadata:

Why cant I use @Codebase?

Hey, is this happening in the chat or Composer? Have you tried manually entering @codebase to check if it works? Also, if you’re using the chat, you can press Ctrl + Enter for the same effect. Please note that the @codebase feature is not available in Agent Composer.