A very simple ssh-agent that signs requests in parallel.
Usage
To install and run the agent simply run:
$ go install github.com/Woellchen/ssh-agent
$ ssh-agent
This will launch a detached agent process in the background that binds to /tmp/ssh-agent.sock.
Now you can simply export SSH_AUTH_SOCK=/tmp/ssh-agent.sock and use it as you are used to.