stock_hk_indicator_eniu

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds the data source (eniu.com) and return type (pandas.DataFrame), but does not disclose any potential quirks like data availability or rate limits. With annotations present, this is adequate but not rich.

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 and well-structured with a title, URL example, and docstring-like param/return sections. The URL example is slightly redundant but not wasteful. It gets to the point without unnecessary fluff.

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?

The description covers the essential purpose, parameters, and return type, but lacks details on the DataFrame structure (columns), the meaning of the '港股' indicator option, and any limitations. For a two-parameter tool with no output schema, it is minimally sufficient but leaves some ambiguity.

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 schema provides only types and defaults with 0% description coverage, but the description compensates by defining symbol as 港股代码 and listing the exact allowed values for indicator. This adds significant meaning beyond the structured schema, making the parameters understandable.

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 states the tool fetches HK stock indicators from eniu.com, listing specific indicators (市盈率, 市净率, etc.). This directly distinguishes it from sibling tools like stock_hk_daily or stock_hk_spot, which focus on price data. The purpose is unambiguous and specific.

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 alternatives. It does not specify scenarios (e.g., when needing valuation ratios vs. price history) or mention exclusions. The only usage hint is the indicator choice list, but no contextual direction is given.

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