ssh-agent user bug
Because of a bug in the packaging of OpenSSH for Windows, you may run into problems like the following after each feature update:
> ssh-add -l
error fetching identities: communication with agent failed
To fix this, launch an elevated console and create a dummy sshd
per the documented workaround:
> New-Service -Name sshd -BinaryPathName C:\Windows\System32\OpenSSH\ssh.exe
Status Name DisplayName
------ ---- -----------
Stopped sshd sshd