Each tool targets a distinct dataset: fuel prices, grocery basket, and cost-of-living index. There is mild conceptual overlap between brazil_grocery_basket and cost_of_living_brazil (both touch on consumer costs), but the descriptions make the boundary reasonably clear.

Two tools follow a 'brazil_<noun>' prefix pattern (brazil_fuel_prices, brazil_grocery_basket), but cost_of_living_brazil puts the country at the end instead. Readable overall, but the pattern breaks in a small set where consistency is easy to achieve.

Three tools is thin for a data-intelligence server covering multiple datasets. Each tool earns its place, but the surface feels like a minimal MVP rather than a well-rounded set.

All three tools are read-only queries with no apparent supporting operations such as listing covered states, stations, time ranges, or comparing regions across datasets. The core query surface exists, but agents will hit dead ends for discovery and drill-down tasks.