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

Annotations already declare readOnlyHint=true, openWorldHint=true, destructiveHint=false, and the description adds nothing beyond that — no note on batch limits, no rate-limit or credit context, no indication of what language the payload comes back in. For an external patent-data API with zero added context, the description contributes nothing.

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?

It is short, but short because it says nothing — a single sentence that merely echoes the title with no front-loaded functional statement. This is under-specification rather than conciseness.

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?

A four-parameter patent retrieval tool with no output schema needs the description to say what comes back (translated description text, per-patent or concatenated, language of the response). None of that is present, so an agent cannot predict the result shape at all.

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 100% and the schema documents lang, patentId, patentNumber and replaceByRelated with concrete limits and precedence rules, so the schema carries the semantics. The description adds no parameter meaning of its own, which lands at the baseline 3 for full coverage.

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 restates the title verbatim ('Patent Intelligence ZY: description Data Translated API') without a verb or a clear statement of what the tool returns. An agent can only infer from the name fragment 'description_data_translated' that it fetches translated patent description text, and it gets no help distinguishing this from the sibling nexscope_data_zy_description_data.

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 when-to-use guidance, no prerequisites, and no mention of the obvious alternative (the untranslated description tool nexscope_data_zy_description_data) despite a huge sibling list. Nothing tells the agent which of the many ZY patent-data tools to pick.

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