some password managers offer ssh key management and provide ssh-agent support: 1. https://developer.1password.com/docs/ssh/agent/ 2. https://bitwarden.com/help/ssh-agent/ currently, the keychain option for ssh term cannot recognize the use of a custom ssh agent.

feature require: add support for custom ssh agent

some password managers offer ssh key management and provide ssh-agent support:

currently, the keychain option for ssh term cannot recognize the use of a custom ssh agent.

Apologies, but libssh2 actually supports ssh-agent. Moving forward, I will continue to enhance and refine the software.