Scored across 69 tools
The descriptions are unusually explicit and cross-reference alternatives, which helps a lot, but several tool families overlap meaningfully: buscar_materias vs search_processos, obter_materia vs obter_processo, and the multiple voting tools (votos_materia, search_votacoes, obter_votacao, votacoes_senador, votacao_comissao) require careful reading to choose correctly. There is also redundancy such as senadores_afastados overlapping with listar_senadores(emExercicio=false). Boundaries are mostly documented, but the overlap is broader than just one or two pairs.
Nearly all tools use a readable snake_case pattern with the senado_ prefix, often followed by a domain and an action (senado_obter_materia, senado_listar_senadores, senado_ecidadania_listar_eventos). Deviations exist: some names are noun-only (senado_mesa, senado_vetos, senado_licitacoes), two use English 'search', and the generic search/fetch tools lack the prefix, but the overall pattern remains predictable.
With 69 tools, the surface is far beyond what an agent can reliably scan and select from in normal use. Even though the domain is broad and many tools cover distinct subdomains, this is the extreme end of tool-count mismatch and will impose a heavy selection burden.
Coverage is very broad across legislative matters, processes, voting, committees, plenary, e-Cidadania, legislation, budget, personnel, contracts, and administrative data. Minor gaps remain, such as individual detail endpoints for some administrative entities (e.g. servidores, terceirizados, empresas), but the overall read-only lifecycle is well covered.