"steps" : {
  "assign" : {
    "target" : "resource-resolution",
    "on_success" : [ "deploy" ],
    "on_failure" : [ "assign-recover" ]
  },
  "assign-recover" : {
    "target" : "execute-script-1",
    "on_success" : [ "assign" ],   <---- circular reference
  },
  "deploy" : {
    "target" : "execute-script-2"
  }