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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the forecast wind basis and time horizon, but it does not describe the return format, how shelter is ranked, data freshness, or what the agent should expect in the response.

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 short and front-loads the geographic scope and time window. The bilingual repetition adds length without adding information for an agent, but the core statement remains efficient.

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 is simple with no parameters and no nested objects, so the description covers the essential domain and time scope. However, with no output schema and no annotations, the description should say more about what the tool returns, such as whether it produces a ranked list or a summary.

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 tool has zero parameters, so there are no parameter semantics to clarify. The baseline for a no-parameter tool is 4, and the description appropriately does not invent parameter details.

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 identifies the resource and scope: sheltered beaches near Porto Ottiolu, Budoni and San Teodoro, evaluated for today and the next two days based on forecast wind. It is not phrased as an explicit action verb, but the intent is specific enough to distinguish it from the sibling tools, which concern availability, house information, and weeks.

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 versus alternatives or when not to use it. The siblings appear unrelated, so there may be no direct alternative, but the description still does not state the appropriate context or any prerequisites.

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