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

With no annotations, the description discloses two meaningful behavioral facts: the price (€6.50) and the word 'Direct', which implies a synchronous call. It does not describe output format, side effects, or error behavior, leaving clear gaps.

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 service name, price, and required parameter. The service ID and emoji formatting add slight noise but do not obscure the core information.

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 one-parameter service call, the description provides the essential invocation details (service identity, price, required input). However, with no output schema it does not explain what the tool returns, and it omits any distinction from sibling document tools.

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. It only repeats that ‘taxCode’ is required without explaining what the value is (e.g., Italian fiscal code vs VAT number), its format, or where to obtain it, adding no semantic meaning beyond the schema.

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?

States the specific DocuEngine service ‘Visura Camerale Inglese’ and category [Camerali], which distinguishes it from sibling services such as the ordinaria and storica variants. However, it relies on the service name rather than an explicit verb like 'retrieve' to convey the action.

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?

Offers no guidance on when to use this tool versus alternatives like the ordinary or historical visura services, or the generic document retrieval tools. The phrase 'Direct tool' is not elaborated into a use condition.

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