cbuae_exchange_rates

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

No annotations are provided, so the description carries full burden. It states the tool retrieves exchange rates, implying a read-only operation, but does not disclose any behavioral details such as base currency, rate format, or whether it returns all currencies or just specific ones. The vague mention of '~75 currencies' lacks precision.

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 concise sentence of 13 words, efficiently conveying the tool's purpose. It is front-loaded with the verb 'Get' and key information. However, the brevity sacrifices some contextual completeness.

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?

Given that there is an output schema (not shown) and only one optional parameter, the description is minimally complete. It covers the core functionality but leaves ambiguity about the exact set of currencies and the base currency. The mention of '~75 currencies' is approximate and could be more precise.

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 input schema has 100% description coverage for the only parameter (date_str), with clear ISO format and default behavior. The description adds the context of 'today or historical' and '~75 currencies', but this largely overlaps with the schema description. It does not significantly enhance beyond the schema.

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 CBUAE exchange rates for today or a historical date, and mentions approximately 75 currencies. It specifies the resource (CBUAE exchange rates) and the action (get). However, it does not explicitly differentiate from sibling tools like 'currency_rates' or 'currency_convert', though the CBUAE specificity provides some 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 explicit guidance on when to use this tool versus alternatives. The description implies use for obtaining CBUAE rates for specific dates, but does not mention when not to use it or suggest sibling tools. Users must infer context from the tool name and sibling list.

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