Input { # Input
  n1: circle label="Start"
  n2: rectangle label="Creative brief submitted"
  n1.handle(right) -> n2.handle(left)
  n2.handle(bottom) -> Generators.n3.handle(top) [label="Brief"]
  n2.handle(bottom) -> Generators.n4.handle(top) [label="Brief"]
  n2.handle(bottom) -> Generators.n5.handle(top) [label="Brief"]
}

Generators { # Generator Agents
  n3: rectangle label="Agent A: Draft option 1"
  n4: rectangle label="Agent B: Draft option 2"
  n5: rectangle label="Agent C: Draft option 3"
  n3.handle(bottom) -> Evaluator.n6.handle(top) [label="Option 1"]
  n4.handle(bottom) -> Evaluator.n6.handle(top) [label="Option 2"]
  n5.handle(bottom) -> Evaluator.n6.handle(top) [label="Option 3"]
}

Evaluator { # Evaluator Agent
  n6: rectangle label="Score all options"
  n7: diamond label="Quality threshold met?"
  n8: rectangle label="Select best output"
  n9: circle label="Done"
  n6.handle(right) -> n7.handle(left)
  n7.handle(right) -> n8.handle(left) [label="Yes"]
  n7.handle(top) -> Generators.n3.handle(bottom) [label="No - Refine"]
  n8.handle(right) -> n9.handle(left)
  loop [refine until quality threshold met] n3 n4 n5 n6 n7
}