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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states that the tool gets real-time price changes and updates, but does not disclose response format, error behavior, rate limits, or the meaning of the 'short' parameter. For a tool with no output schema, this is a notable gap.

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 concise and front-loaded, consisting of two sentences that state the purpose and the batch capability. There is no redundant information or verbose language, making it efficient and scannable.

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 tool is relatively simple with one boolean parameter fully documented in the schema, but it lacks an output schema. The description does not explain what the response looks like (e.g., structure of returned quotes), which would be useful. However, for a straightforward quote-retrieval tool, the description is minimally complete.

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 a 100% description for the single 'short' parameter ('Whether to use short format'), so the baseline is 3. The tool description does not add any additional semantic detail beyond what the schema already states, such as what 'short format' entails or when to set it.

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 retrieves real-time quotes for multiple forex currency pairs, using a specific verb and resource. It distinguishes from single-quote tools by emphasizing 'multiple' and 'single request', but does not differentiate from the sibling tool 'getForexBatchQuotes', which likely covers the same functionality.

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 implies usage for retrieving multiple forex pairs at once ('in a single request'), but it does not explicitly state when to use this tool versus alternatives like getForexQuote or getForexBatchQuotes. There is no exclusionary guidance or mention of conditions where a different tool would be preferred.

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