Function prepare_delete 

pub async fn prepare_delete(
    runtime: &KhiveRuntime,
    token: &NamespaceToken,
    args: &Value,
    expected_kind: Option<AtomicDeleteKind>,
) -> RuntimeResult<AtomicOpPlan>

expected_kind: None when the caller omitted kind (no check, parity with canonical’s own optional discriminator); Some(_) enforces an exact-parity mismatch check against the resolved record’s actual substrate/specific kind, mirroring handle_delete’s entity.kind != *expected / note.kind != *expected checks.