ssh-sk-helper is used by ssh-agent(1) to access keys provided by a FIDO authenticator.
ssh-sk-helper is not intended to be invoked by the user, but from ssh-agent(1).
A single option is supported:
Verbose mode. Causes ssh-sk-helper to print debugging messages about its progress. This is helpful in debugging problems. Multiple -v options increase the verbosity. The maximum is 3.
Note that ssh-agent(1) will automatically pass the -v flag to ssh-sk-helper when it has itself been placed in debug mode.
ssh(1), ssh-add(1), ssh-agent(1)
ssh-sk-helper first appeared in OpenBSD 6.7.
Damien Miller <email@example.com>