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

With no annotations, the description carries the behavioral burden. It does state the core behavior (generating FAQs) and adds the pay-per-use cost model, which is useful beyond the schema. However, it does not disclose output format, language, limits, or error behavior. For a simple generation tool this is acceptable but not fully transparent.

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 and front-loaded: the main verb and purpose appear first, followed by input semantics and pricing. Every element earns its place and there is no fluff.

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?

For a one-parameter, low-complexity tool, this description is nearly complete: it explains the action, the input semantics, and the cost. It lacks a return-format note and fails to distinguish from the sibling 'faq', but these are minor gaps given the tool's simplicity.

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 parameter description is the generic 'service input', so the description adds real semantic value with 'input=tema/producto'. This tells the agent what kind of string to provide. It could be more specific about expected format, but the added meaning is meaningful.

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 states a clear verb-resource pairing: 'Genera preguntas frecuentes (FAQ) sobre un tema'. It also clarifies the input is a topic/product. However, it does not differentiate itself from the sibling tool 'faq', which appears to serve the same or very similar purpose.

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?

No usage guidance is provided. The description does not say when to prefer this tool over 'faq' or any other sibling, nor does it give when-not-to-use conditions or alternatives. The agent is left to infer the appropriate context.

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