macro_euro_current_account_mom

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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior. The description adds valuable behavioral context: the specific data range, the quirk that the first two values need to be dropped, and the return type (pandas.Series). This goes beyond the structured annotations.

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 compact but slightly cluttered with raw URLs and a repeated title. It front-loads the purpose, but the middle includes source links that could be considered optional. Still, every sentence provides some useful 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?

For a simple no-parameter data retrieval tool, the description provides the data range, source URLs, unit of measurement, a data-cleaning instruction, and the return type. It is fairly complete, though it does not explicitly mention frequency or update schedule; the tool name implies month-over-month.

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 baseline is 4 per the rubric. The description confirms no parameters are needed and explains the return unit, which is adequate given the empty input schema.

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 states the tool returns the Eurozone current account report (欧元区经常帐报告) with the current value in 亿欧元, and the tool name includes '_mom' indicating month-over-month. This clearly identifies the data resource, though it doesn't explicitly contrast with sibling tools like macro_euro_trade_balance or macro_euro_cpi_mom.

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 concrete usage note: the data range starts from 20080221 to present and the first two values must be removed. However, it gives no explicit guidance on when to choose this tool over other eurozone macro indicators or any exclusions.

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