noticias_agro

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

No annotations are provided, so the description carries full burden. It discloses the data source (Canal Rural) and method (RSS), indicating a read-only, non-destructive operation. While not exhaustive, it is sufficiently transparent for a simple news retrieval tool.

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 consists of two concise sentences: the first states the core function, and the second provides the source. Every sentence is necessary, and the structure is front-loaded and clear.

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?

The tool is simple with low complexity. The presence of an output schema means return values are documented elsewhere. The description covers the main purpose and source, and the schema parameters are well-documented. It is complete enough for this tool.

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 description coverage is 100% with clear descriptions for tema and limite. The tool description does not add any additional meaning beyond the schema, so baseline score 3 is appropriate.

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 returns latest agribusiness news via RSS, specifying the source (Canal Rural). The verb 'Retorna' and resource 'notícias do agronegócio' are specific, and it naturally distinguishes from sibling tools that focus on prices or calendars.

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?

The description implies this tool is for retrieving agribusiness news, but it does not explicitly state when to use it over alternatives like cotacao_soja or clima_previsao. There is no comparison or when-not guidance, only implied context.

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