xRocket rates

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

The annotations already convey read-only, idempotent, non-destructive behavior. The description adds the useful qualification that the rates are 'public', implying no auth barrier, but does not disclose other behavioral details like freshness, default coverage, or response size. Overall it is consistent with annotations without contributing significant extra depth.

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 efficient sentence, front-loaded with the verb and subject. There is no redundant wording or filler; every word contributes to conveying scope and behavior.

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 market-data lookup with a simple input schema and an output schema available, the combination of description and schema is workable. However, the behavior of the optional assets parameter and the default output when assets is not specified remain ambiguous, leaving a clear gap for an agent deciding what to pass or what to expect.

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 defines 'base' and 'assets', but the description adds little beyond 'one fiat base currency', which is already mostly represented in the schema. With a schema coverage signal of 50% (especially the 'assets' parameter), the description should explain what happens when assets is omitted, whether it returns all crypto assets, how filtering applies, or provide clearer parameter relationships—none of which is present.

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 action ('Get'), the resource ('public crypto-asset rates'), and a key qualifier ('in one fiat base currency'), so an agent can understand what the tool does. It does not explicitly differentiate it from sibling market-data tools like xrocket_market_tickers or xrocket_market_snapshot, but it is specific and unambiguous enough to be useful.

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 choose this tool over the many rate and market siblings, nor does it mention alternatives. It only describes what the tool returns, not the selection conditions between xrocket_market_tickers, xrocket_market_snapshot, or xrocket_asset_info.

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