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

Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered without the description. The description itself adds no behavioral context, saying nothing about response shape, family-replacement behavior, or limits implied by the parameters.

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 a single short fragment, but the brevity reflects under-specification rather than efficiency. Nothing is front-loaded beyond the name, and no sentence earns its place.

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?

With no output schema and a retrieval tool that returns claim text for up to 100 patents, the description should say what comes back and how the two identifier inputs interact. Instead it provides no information an agent can act on beyond the name.

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%, so all three parameters (patentId, patentNumber, replaceByRelated) are fully documented in the schema, including comma-separation, the 100-item cap, and the 1/0 flag. The description adds nothing beyond that, which is acceptable at baseline 3 when the schema carries the load.

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 is a verbatim restatement of the title, "Patent Intelligence ZY: claim Data API." It implies the resource (patent claims) but supplies no verb or scope, so an agent cannot tell exactly what it does versus the many sibling claim/patent tools.

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 when-to-use guidance, no mention of alternatives, and no conditions or prerequisites. Siblings such as nexscope_patent_claims and nexscope_data_zy_claim_data_translated are obvious candidates that go unmentioned.

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