I am using https://github.com/melihmucuk/pi-crew which I like more. It has pretty nice pre-defined agent .md files. Then there is also https://github.com/nicobailon/pi-subagents . It is probably worth trying all three and decide. But pi-crew is a winner for me personally.

Note that there is another extension called pi-crew which mentiones in Readme that it was completely vibecoded, I haven't tested that one.