macro_euro_manufacturing_pmi

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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered. The description adds the data start date and specifies the return as a pandas Series of the current value (今值), which is useful behavioral context beyond the annotations, though authentication, rate limits, and update frequency are not addressed.

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 report name, but it includes two raw URLs and repeats the resource name in the :return: field, which adds some clutter. It is not poorly structured, but not every element clearly earns its place.

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 no-parameter macro data retrieval tool with no output schema, the description supplies the data range, the return object type, and the returned field (今值). Together with annotations that cover the safety profile, this is nearly complete, though update frequency and source reliability remain unstated.

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 takes zero input parameters, so there are no parameter semantics to document. Baseline score of 4 is appropriate; the description's return-type note is helpful but does not substitute for missing parameter guidance.

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 the specific resource (欧元区制造业PMI初值报告) and its temporal coverage (20080222-至今), which distinguishes it from siblings like macro_euro_services_pmi or macro_euro_ppi_mom. It does not use an explicit retrieval verb, but the purpose is clear from the tool name and the stated content.

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?

No when-to-use guidance, no alternatives, and no exclusions are given. The agent must infer usage solely from the tool name and data coverage; there is no statement about when this should be selected over other Eurozone macro tools.

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