There is no support for `pinentry`.

[Myridium]

In pass, the gpg-agent manages the secret associated with the GPG key. This may be the PIN to access a YubiKey, or the passphrase to a password-protected GPG identity file.

On the other hand, passage prompts for the password to the age private key every time it is needed. This program should either hand-off the secret-gathering to another program (like an age-plugin-... or ssh-agent or something) or it should support the use of a chosen pinentry program.