get_bibtex

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

With no annotations, the description carries the behavioral burden. It discloses useful traits beyond the name: Crossref lookup, fallback to OpenAlex metadata, local generation, and caching. This gives the agent meaningful expectations about execution and repeat calls.

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 two concise sentences with no filler. The primary action is front-loaded, fallback behavior is clearly parenthesized, and caching is stated in a standalone sentence. Every clause adds 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?

The tool is simple (one parameter, no annotations, output schema present), and the description covers data sources, fallback behavior, and caching. It could add polish by mentioning failure behavior for unknown DOIs, but the core information an agent needs to select and invoke it is present.

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 coverage for the single parameter is 0%, so the description must compensate. It does so by explaining that the paper is identified 'by DOI', giving semantic meaning to the only required parameter. It lacks format/example guidance, but for a single string parameter this is sufficient.

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 a specific verb ('Generate') and a specific output resource ('BibTeX citation entry for a paper by DOI'). It also names the data sources (Crossref, with OpenAlex fallback), which makes it easy to distinguish from siblings like paper_details and get_citation_graph.

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 description implies the clear use case: obtain a BibTeX citation for a known DOI. It does not explicitly name alternatives or exclusion conditions, but the purpose is specific enough that an agent can infer when this tool is appropriate.

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