[
  {"op":"doc","text":"flat-closed: bias = 0, all params bound (mc requires a closed blueprint)"},
  {"op":"source","role":"close","kind":"F64"},
  {"op":"add","type":"SMA","name":"sma","bind":{"length":{"I64":3}}},
  {"op":"add","type":"Sub","name":"d"},
  {"op":"add","type":"Sign","name":"s"},
  {"op":"add","type":"Scale","name":"z","bind":{"factor":{"F64":0.0}}},
  {"op":"feed","role":"close","into":["sma.series","d.lhs"]},
  {"op":"connect","from":"sma.value","to":"d.rhs"},
  {"op":"connect","from":"d.value","to":"s.value"},
  {"op":"connect","from":"s.value","to":"z.signal"},
  {"op":"expose","from":"z.value","as":"bias"}
]