ibge_paises

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, so the description carries the burden. It does not mention behavioral traits like read-only, rate limits, or authentication. The tool is a query-only data retrieval, but the description could be clearer about non-destructive nature.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with bullet points for features, a dedicated line for regions and country codes, and concrete examples. Every sentence adds value without redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema and moderate complexity, the description fully explains all parameters, usage modes, and constraints. It is complete for an agent to invoke the tool correctly without additional documentation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with descriptions for each parameter. The description adds extra context: explains region values, country code format, and provides usage examples (e.g., 'tipo=listar' to list all). This goes beyond the schema's basic descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it queries international country data via IBGE, lists features like listing, details, search, and filtering. It distinguishes itself from siblings (e.g., ibge_estados, ibge_municipios) by focusing on countries (paises), not subnational entities.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides examples for each tipo (listar, detalhes, buscar, indicadores) and specifies required country codes (ISO-ALPHA-2) and regions. However, it does not explicitly tell when to use this tool vs. siblings, though the purpose is clear enough for an agent.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.