[Question] How would one use the ssh-agent?

How would one set it up so gitsh doesn't keep asking for passphrase?
Normally one would use the following commands:
```bash
eval $(ssh-agent)
ssh-add
```
but running it as follows inside the gitsh:
```bash
!eval $(!ssh-agent) // Started agent succesfully
!ssh-add // Could not open a connection to your authentication agent.
```