macro_usa_gdp_monthly

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds useful behavioral context by naming the data source, the date coverage, and the return type as a pandas DataFrame, which helps the agent know what to expect without an output schema.

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-loads the resource and date range before the URL and return metadata. It has some redundancy with the annotation title, but contains no filler or off-topic content.

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 read-only macro data tool, the description supplies the key pieces: source, coverage window, and return type. It does not detail update frequency or columns, but with no output schema and rich annotations, this is enough for correct invocation.

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 input parameters, so the baseline is 4. The description correctly does not waste space explaining parameters, and there is no parameter-related ambiguity for the agent.

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 identifies the resource clearly as the Jin10 US GDP report and gives a specific temporal scope from 2008-02-28 to present. It is distinguishable from other macro tools by source and country, though it does not explicitly restate the monthly frequency or name sibling alternatives.

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 states what the dataset is but gives no explicit guidance on when to use it versus alternative macro data tools. Usage is only implied by the resource name, and there are no exclusions or prerequisites.

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