wsp agents signin

usage: wsp agents signin <agent> [<thread>]
  signs an agent in on this computer or where a thread runs, its own sign-in run
  there and shown in this terminal; a box you added takes wsp add <computer>
  --sign-in <agent>

  --json     print the raw protocol values, one JSON object per line, with
             everything else on stderr
  --state    the state file the host serves
  --host     run the line against a host on your account, by the name wsp hosts
             lists it under; WSP_HOST names one for a whole shell