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

No annotations are provided, so the description carries full burden. It only says 'Gera o arquivo' without disclosing side effects, authentication requirements, or what happens with the transmit flag. Parameter descriptions partially compensate (e.g., note about certificate), but the tool description itself is minimal.

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?

A single, front-loaded sentence that efficiently states the tool's purpose with no wasted words. Excellent conciseness.

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?

Despite clear purpose, the description lacks completeness for an agent to fully understand the tool's behavior and output. No output schema exists, but the description does not mention what the tool returns (e.g., file content, success message). Given the array parameter and conditional transmission, more context is needed.

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 coverage is 100%, so baseline is 3. The description adds no additional meaning to the parameters beyond what the schema already provides. It does not clarify parameter relationships or usage.

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 generates the FCI file for products with imported content in interstate operations. The verb 'Gera' and specific resource 'arquivo FCI' are precise, and it distinguishes from sibling tools focused on other tax documents.

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 explains when the tool is required (products with imported content in interstate operations). It does not explicitly mention when not to use it, but the context of sibling tools implies it is for FCI only. This is adequate but could be more explicit.

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