digraph Styled {
    graph [
        goal="Build a styled pipeline",
        model_stylesheet="
            * { model: claude-sonnet-4-5;}
            .code { model: claude-opus-4-6; }
            #critical_review { model: gpt-5.2;reasoning_effort: high; }
        "
    ]

    start [shape=Mdiamond]
    exit  [shape=Msquare]

    plan            [label="Plan", class="planning"]
    implement       [label="Implement", class="code"]
    critical_review [label="Critical Review", class="code"]

    start -> plan -> implement -> critical_review -> exit
}