macro_china_ppi_yearly

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so the safety profile is fully covered. The description adds a useful data-coverage range (19950801-present) and the source URL and return type, though it does not note refresh cadence or update frequency for a macro series.

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?

Compact and front-loaded: the resource and scope come first, followed by the source link and rtype. The ':return:'/' :rtype:' boilerplate is mildly redundant but low-cost.

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 data-fetch tool with no output schema, the description supplies the essentials: what the data is, its date coverage, its source, and its return type (pandas.DataFrame). Nothing critical to invoking it is 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 takes zero parameters, so the baseline is 4. There is no parameter surface for the description to explain, and none 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?

States a specific verb+resource: Chinese yearly PPI data with a concrete date range (19950801-present). The name and description both make clear it is the yearly PPI series. It does not explicitly differentiate from the sibling macro_china_ppi (monthly) or macro_china_hk_ppi, leaving the agent to infer the distinction.

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 and no alternatives named. With macro_china_ppi and macro_china_hk_ppi as close siblings, the description should say when to pick this yearly series instead, but it offers nothing beyond the data range.

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