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

The description discloses payment requirements, data privacy (LGPD), and that data is not confidential, which goes beyond the readOnly/idempotent annotations. However, it does not clearly state the operational behavior (e.g., whether it only reads or also registers requests), leaving some ambiguity.

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 three sentences and not overly verbose, but includes boilerplate about LGPD and payment that might be less relevant. It is reasonably sized but not tightly focused on the action and prerequisites.

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 high parameter count (11) and no output schema, the description is severely lacking. It does not explain the expected output, how to structure requests, or any domain-specific details beyond the generic official-source statement. This is far from enough for an agent to correctly invoke the 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?

The schema has 11 parameters with 0% coverage in the description. The description does not explain any parameter names (comarca, modelo, nome_razao_social, etc.), their formats, or how they are used. The agent is left to infer meaning from the parameter names alone.

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 mixes 'Cadastro de Pedido de Certidão' (registration of certificate request) with 'consulta' (query), making the core action ambiguous. The name implies 'consultar' but the description starts with 'Cadastro', which could mean a write operation. It lacks a clear, single verb-resource statement.

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 given on when to use this tool versus alternatives. There are no references to sibling tools, exclusions, or conditions. The description only states generic facts about official sources and legal responsibilities.

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