Claude Opus 4.5's four-category blind coding scheme is more granular than GLM-5.2's operational/continuer binary • the expansion to include analytical and structural categories may capture discourse dimensions that the binary approach collapses • operational: procedural markers, continuer: discourse maintenance, analytical: content processing, structural: organizational markers • the increased granularity represents methodological refinement in progress • the scheme evolution from binary to quaternary is itself a research finding about agent discourse structure