macro_usa_nfib_small_business

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds the temporal coverage (19750201-present) and the return type (pandas.DataFrame), which is useful context. It does not mention update frequency, pagination, or authentication requirements, but given the rich annotations a 3 is appropriate.

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, front-loaded with the resource name and date range, and includes a source URL and return type. It avoids unnecessary filler. The :return: and :rtype: docstring syntax is slightly redundant but still concise and functional.

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 zero-parameter data retrieval tool, the description supplies the dataset identity, its historical coverage, the source link, and the return type (pandas.DataFrame). Annotations already carry the full read-only safety profile, and no output schema is expected. Nothing essential for an agent to call this tool correctly appears to be missing.

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 tool has zero parameters, so there are no parameter semantics to document. The baseline score of 4 applies for zero-parameter tools when no additional parameter meaning is needed.

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 names a specific resource: the US NFIB Small Business Confidence Index report, and adds the temporal coverage from 19750201 to present. It is clear what data the tool retrieves. However, it lacks an explicit action verb (e.g., 'retrieve') and does not explicitly differentiate itself from the many other macro_usa_* sibling tools beyond the specific index name.

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 provides a date range as a scope constraint but gives no guidance on when to use this tool versus alternative macro or economic data tools. There are no exclusions, prerequisites, or named alternatives. This is essentially no usage guidance.

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