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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds that results include availability, prices, conditions, and booking URL, but it does not discuss auth needs, rate limits, or error behavior. No annotation contradiction is present.

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 definition is a single front-loaded sentence with no filler. It is appropriately sized for the amount of information it chooses to convey.

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 output schema exists, so return values do not need explanation, and the annotations cover safety. Still, with 6 parameters and 0% schema description coverage, the description is incomplete for correct invocation because optional parameters and their effects on availability/pricing are undocumented.

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 description coverage is 0%, so the description must compensate for six parameters. It only hints at exact dates, which maps loosely to checkIn/checkOut, and never explains propertyId, adults, childrenAges, or language. Optional parameters such as childrenAges are especially left without semantic meaning.

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 specific verb ('Verifica') and resource ('alloggi disponibili, prezzi, condizioni e URL di prenotazione') scoped to exact dates and a published property. It is clear what the tool does, though it does not explicitly distinguish itself from the sibling 'search_availability'.

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 phrase 'per date esatte' and 'struttura pubblicata' implies when to use the tool: exact-date availability checks on a known published property. However, it gives no explicit when-not guidance and does not name or compare against the sibling 'search_availability'.

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