subject_classifications

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

With no annotations provided, the description carries the full burden. It discloses that the tool returns 'classification codes, abbreviations, and descriptions,' which is a useful behavioral detail. However, it does not mention any additional behavior such as filtering logic, response size, or required permissions, leaving some 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?

Two concise sentences immediately state purpose and usefulness, with no redundant wording. The title and description are front-loaded, making it easy to scan.

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?

Given the tool's simplicity and full schema coverage, the short description is largely sufficient. It mentions the return categories, partially compensating for the absence of an output schema. A bit more detail on filtering behavior would improve completeness, but it is generally complete for a metadata lookup tool.

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 input schema has 100% coverage with descriptive parameter documentation, so the description need not add much. The description does not go beyond the schema's parameter descriptions, warranting the baseline score of 3.

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 states the tool's function: 'Retrieve subject area classifications used in Scopus or ScienceDirect' with a specific resource and purpose. It distinguishes itself from sibling search/retrieval tools by focusing on classification metadata rather than documents.

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 'Useful for finding subject codes to filter searches' provides clear context for when to use the tool. While it does not explicitly name alternatives or exclusions, it implies integration with search tools like scopus_search.

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