The following URL formats can be used for opening Prompt and auto-filling connection details:

ssh

ssh://hostname
ssh://username@hostname
ssh://username:password@hostname
ssh://hostname:port
ssh://username@hostname:port
ssh://username:password@hostname:port

prompt-ssh

prompt-ssh://hostname
prompt-ssh://username@hostname
prompt-ssh://username:password@hostname
prompt-ssh://hostname:port
prompt-ssh://username@hostname:port
prompt-ssh://username:password@hostname:port

telnet

telnet://hostname
telnet://hostname:port

prompt-telnet

prompt-telnet://hostname
prompt-telnet://hostname:port

prompt-favorite

prompt-favorite://Staging
prompt-favorite://Production
prompt-favorite://username@hostname

Note: The prompt-favorite URL scheme will open a saved server using its name. If no server with a matching name is found it will then try to match the username and hostname.