Work with large or backed AnnData¶

cp-validate large.h5ad --backed --sample-rows 5000

--backed forces anndata backed mode; --no-backed forces a full load.
When omitted, loading mode is chosen from file size.
Numeric and AI-readiness checks use bounded row sampling (--sample-rows, default 5000) and never densify a full sparse matrix.
Structural and metadata checks use .obs / .var / .uns, which remain available in backed mode.