macro_usa_cftc_c_holding

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

Annotations already cover read-only, idempotent, and non-destructive behavior. The description adds the data source URL and date range, but it contains a significant internal contradiction: the return description claims the report is 'foreign exchange' while the tool name and main description say 'commodities'. This misdescribes the output and reduces trustworthiness.

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 and front-loaded with the main subject. However, the return line is redundant and contains a factual error (foreign exchange instead of commodities), so not every sentence earns its place. A correct return line would make it more concise and effective.

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 simple zero-parameter read-only tool, the description provides some necessary context (date range, source URL) and annotations supply safety details. However, the erroneous return description makes it incomplete, and the description does not explain what 'non-commercial holdings' means or what columns/format the DataFrame contains. With no output schema, better return documentation is needed.

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 the input schema provides no information to clarify. Per baseline for 0 params, the description need not add parameter semantics. It correctly includes return type and data source, which is sufficient given no parameters exist.

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 names the tool as a U.S. CFTC commodity non-commercial holdings report with a specific date range, which distinguishes it from merchant or currency holding siblings. However, it lacks an explicit action verb, and the return line erroneously says 'foreign exchange' instead of 'commodities', introducing some confusion.

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 guidance on when to use this tool versus the many similar CFTC holding tools (e.g., merchant goods, merchant currency, or non-commercial holdings). The URL provides a data source, not usage context, and no alternatives or exclusions are mentioned.

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