op signin asks for password every time on remote headless linux box accessed over VS Code Tunnel

I'm using VS Code https://code.visualstudio.com/docs/remote/tunnels to connect to a Linux box for development. I'm using the 1P cli to retrieve some secrets in a script to feed to docker, etc. I'm having trouble reliably finding a way add some form of op signin to my script to authenticate without prompting for the password every time. The --help text for op signin states that it shouldn't prompt for authentication if you're already authenticated. But for me, it prompts every time. If I do eval $(op signin) twice in a row, I get two prompts to authenticate.

Is there some way I can check if the current session is validated? My understanding is that the session lasts 30 minutes, so I'm just looking for a way to only have to enter the password no more than once every 30 minutes.

And to be clear, I'm using Remote Tunnels and not https://code.visualstudio.com/docs/remote/ssh so forwarding my ssh agent connection from my local machine isn't an option.

I'm using version 2.30.0 of the command line tool on Ubuntu 24.04.

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