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

The annotations already declare readOnlyHint, idempotentHint, and destructiveHint, and the description adds meaningful context beyond them: the paid per-query behavior, absence of platform credentials, official-source nature, and LGPD data-controller responsibility. This is valuable supplementary behavioral and legal context.

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 reasonably structured but includes some repetition such as 'consulta em fonte oficial' and 'Consulta informação de fontes [...] oficiais'. The information is relevant overall, but it could be tightened without losing meaning.

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 description gives useful context about official sources, prepaid credit, non-confidential data, and LGPD compliance. However, because there is no output schema, it does not explain the response shape/certificate return or how the query parameters interact, leaving significant gaps for successful invocation.

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 description coverage is 0%, and the description does not explain how CPF, CNPJ, or nome should be used, which of them is preferred, or what is required. The parameter names are self-evident, but the description adds little to no parameter semantics.

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 explicitly identifies the tool as a consultation of TRT10 CEAT (Certidão Eletrônica de Ações Trabalhistas) from an official source, with the scope of digital processes. It is clearly distinct from the sibling tools, none of which relate to tribunal certificate queries.

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 gives useful context: the tool requires no platform credentials, is paid per query with prepaid credit, and only accesses official data already available to citizens. It does not explicitly name alternatives or exclusions, but there are no similar sibling tools and the usage setting is sufficiently clear.

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