mlx-bun library API
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    interface SectionRouteOpts {
        call?: SectionCall;
        substantive?: boolean;
    }
    Index

    Model-call override (tests/eval inject a fake).

    substantive?: boolean

    Whether the chunk is substantive for THIS article (gates the new-section sub-task on an all-no result). ROUTE already vouched the chunk is about the article, so this defaults to true.