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

Annotations already indicate read-only and idempotent behavior. The description adds that payment is required and that no platform credentials are used, but it does not clarify side effects, data handling, or response behavior. It provides minimal additional transparency beyond annotations.

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 single verbose run-on sentence filled with repetitive legal jargon (e.g., 'fonte oficial', 'não é dado sigiloso', 'LGPD'). It is not concise and obscures the actual purpose, making it difficult to parse quickly.

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 12 parameters, no output schema, and no parameter descriptions. The description does not provide a clear functional overview, expected inputs, or output format. It is entirely inadequate for an agent to understand how to invoke and process results correctly.

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?

All 12 parameters are strings with no descriptions. The schema has 0% coverage. The description does not explain any parameter's meaning, which is critical for a tool with such a large parameter set.

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 mentions 'consulta em fonte oficial' (query in official source) and 'Alteração de Dados Cadastrais' (change of registration data), but it is ambiguous whether the tool queries changes or performs them. The tool name suggests 'consultar' (query), but the description mixes compliance language without clearly stating the function.

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?

There is no guidance on when to use this tool vs. alternatives, nor any context for when it is appropriate. The description is purely a legal disclaimer about payment and LGPD, not usage instructions.

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