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

The annotations already indicate read-only and non-destructive behavior. The description adds that data comes from official sources, is not confidential, and that usage incurs prepaid credit costs, but it does not elaborate on error handling or consequences of insufficient credits.

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 a few sentences but repeats the idea of consulting official sources and includes non-essential legal disclaimers. It could be more concise by focusing on the core functionality.

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 the lack of parameter explanations and output schema, the description is insufficient for a user to understand how to use the tool. Missing details on input semantics, output format, and constraints make it incomplete.

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?

None of the six parameters (escala, login_cpf, login_senha, pkcs12_cert, pkcs12_pass, codigo_parcela) are described. The schema provides only names and types, and the description offers no explanation of their meaning or purpose.

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 states it queries information from official Brazilian sources, but it does not clearly specify that it retrieves INCRA SIGEF plant data specifically. The mention of payment and LGPD distracts from the core purpose, leaving the primary function somewhat vague.

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?

No guidance is provided on when to use this tool compared to alternatives. It does not mention any conditions, scenarios, or prerequisites for invoking the tool.

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