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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, consistent with the description's 'consulta' wording. The description adds valuable behavioral context: the platform hosting, lack of platform credentials, prepaid credit per query, and LGPD compliance. It also clarifies the data is not confidential, which is useful risk-relevant info. No contradictions found.

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 compact—a single paragraph of three sentences—and front-loads the core purpose ('SINTEGRA: PR, consulta em fonte oficial'). It avoids redundancy and wastes no words, though it interleaves legal/payment details that could be considered secondary. Overall, it's well-structured for quick parsing.

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 has 5 parameters, no output schema, and only basic annotations. The description covers payment and legal aspects but fails to explain parameter usage, expected return format, or any constraints (e.g., which identifiers can be combined). This leaves agents underinformed about how to invoke the tool effectively, making it incomplete for its complexity.

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 0%, and the description provides zero explanation of the five parameters (ie, cpf, cnpj, ie_produtor, cnpj_produtor). The description does not compensate for the schema gap—it never mentions what identifiers are needed or how they relate to the query. This is a significant deficiency for a tool with multiple identifier types.

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 the tool performs a query ('consulta') on SINTEGRA PR, an official Brazilian source. It identifies the resource and distinguishes from generic sibling tools (auth, connect, etc.) by specifying the domain. However, it doesn't explicitly mention what specific data is returned or how the parameters map to queries, leaving some ambiguity.

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 provides context (official source, paid, no credentials) but never states when to use this tool versus alternatives or when not to use it. It implies usage for querying Brazilian official data, but there are no explicit exclusions or alternative tool references. This is sufficient for a simple consult tool with no competing siblings, but lacks direct guidance.

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