Scored across 5 tools
Each tool has a clearly distinct role (discover datasets, inspect schema, fetch rows, run SQL, list B2B bundles), and descriptions explicitly cross-reference WHEN NOT TO USE. The only mild overlap is between search_japan_official_data and execute_japan_megabank_sql, since both retrieve records, but the simple-lookup vs JOIN/aggregation boundary is well delineated.
All names follow a consistent snake_case verb_noun pattern (list_*, describe_*, search_*, execute_*). Minor inconsistency in the domain qualifier used (japan, japan_official, japan_megabank, flagship_b2b) and singular/plural switch between describe_japan_dataset and list_japan_datasets, but the convention is still predictable.
Five tools is well-scoped for a data-discovery-and-query server, and each earns its place covering a distinct stage of the workflow. No redundant or trivial tools, and nothing feels artificially padded.
The read-only lifecycle is well covered: discover datasets, inspect schema, fetch rows, run cross-table SQL, plus a B2B bundle listing. The main gap is the absence of an export/download or bundle-purchase action, but for a read-only query surface the coverage is essentially complete.