Anchor with grounding requirements and breach policy

Primitives used: persona · flow · anchor

// An anchor declares the typed safety invariants that every output
// reaching the user must satisfy. The runtime audits each step's
// output against the anchor; on breach it applies the declared
// policy (raise <Error> | retry | log | ...).

persona Doctor {
    domain: ["internal-medicine"]
    tone: precise
    confidence_threshold: 0.9
    cite_sources: true
}

anchor EvidenceBacked {
    require: evidence_backed
    confidence_floor: 0.85
    unknown_response: "I don't have enough clinical evidence to answer that safely."
    on_violation: raise AnchorBreachError
}

type Question { text: String }
type Answer   { text: String }

flow ClinicalAnswer(q: Question) -> Answer {
    step Reply {
        given: q
        ask: "Answer the clinical question; cite the supporting evidence."
        output: Answer
    }
    return Reply.output
}