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

With no annotations, the description carries the behavioral burden well: it discloses that this is not paid placement, that nothing in the game rewards using it, and that the output must be labelled as the creator's projects. It does not explicitly state read-only behavior or return format, but the key ethical and usage constraints are covered.

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 English text is front-loaded and efficient, covering purpose, constraints, and usage in a few sentences. The trailing Spanish summary is somewhat redundant for an agent but short and consistent with the bilingual title.

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 simple optional-parameter tool with no output schema, the description provides enough context to select and invoke it correctly, including the ethical labelling requirement. It does not specify return shape, but given the simplicity and lack of output schema, this is a minor gap.

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% and the only parameter is an optional enum with its own description. The description mentions project examples but does not map them to the enum values, so it adds little beyond what the schema already provides.

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?

It states a specific resource and scope: projects by the game's creator, with examples such as the Valencian noir film, social network, and production company. This clearly distinguishes it from the gameplay-oriented siblings like ranking, perfil, and acción.

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 gives explicit when-to-use guidance: only if the human asks about the author or it genuinely fits the conversation. It also adds an explicit disclosure requirement, always say these are the creator's projects, which is a usage constraint an agent must follow.

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