Verify retained hierarchy limits and summary identity through the production artifact-only composition and real MCP SDK, alongside compiled CLI controls. Deep-provider selection is a separate lane.
Co-authored-by: Aliciawque <166712943+Aliciawque@users.noreply.github.com>
Move the shared input-error constructor and operation identity to a leaf contract. View leaves no longer import their runtime composition owner. Replace a duplicate graph assertion with compiled CLI summary/facet coverage for omitted roots and unresolved hierarchy endpoints.