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

Annotations already mark it read-only and idempotent; the description adds that it requires no platform credentials, costs prepaid credit per query, returns only public non-confidential data, and assigns LGPD data control to the client. This goes well beyond annotations and gives valuable behavioral 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 a single paragraph but front-loads the core purpose and compactly bundles payment, credentials, confidentiality, and LGPD. Every sentence adds unique information, though the structure could be slightly clearer.

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 one parameter and no output schema, so the description should explain what data it returns. It only says 'consulta informação' without specifying actual fields or structure, leaving a gap. However, it covers privacy and payment context, making it partially complete.

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 one required string parameter 'placa' with 0% description coverage. The description does not mention the license plate parameter at all, failing to explain its format, meaning, or any examples. With no schema documentation, the description must compensate, and it does not.

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 states it queries ANTT's International Road Freight Transport (TRIC) from an official source, with the verb 'consulta' and the specific resource 'TRIC'. It clearly distinguishes itself from unrelated sibling platform tools like 'authenticate' and 'marketplace'.

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 clear usage context: it is a paid per-query service hosted by the platform, requiring no platform credentials, and includes LGPD responsibilities for the client. It does not explicitly name alternatives, but the conditions are specific enough to guide the agent.

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