Coinglass: getCoinglassFuturesWhaleIndex

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

Annotations already provide readOnlyHint=true, destructiveHint=false, idempotentHint=true, openWorldHint=true. The description adds no behavioral disclosure beyond 'provides a list', missing details like pagination behavior, data recency, or rate limits. Minimal added value.

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 a single short sentence, no fluff. It is efficient but lacks structure (e.g., no bullet points or details). Still, it earns a high score for conciseness.

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?

No output schema is provided, and the description is very brief. Agents lack context on what the data includes (e.g., fields, time ranges). Given the open world hint, some incompleteness is tolerable, but more detail would help.

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?

Schema coverage is 100%, and the parameters 'page' and 'limit' are described in the schema. The description does not add any additional meaning or context beyond what is already in the schema, so baseline of 3 is appropriate.

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 'Provides a list of futures whale index data' clearly states the verb ('provides') and resource ('futures whale index data'). However, among many sibling Coinglass tools (e.g., getCoinglassOpenInterestHistory, getCoinglassBitcoinEtfList), it does not differentiate what makes this whale index data unique.

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 offers no guidance on when to use this tool versus alternatives, nor does it mention context or prerequisites. Agents have no help deciding between this and other Coinglass data tools.

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