GetCurrencyConversion

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. While it mentions 'real-time exchange rate' and works with 'forex and cryptocurrency,' it doesn't disclose important behavioral traits like rate limits, authentication requirements (though apikey parameter exists), data freshness guarantees, error conditions, or response format details. The description is too sparse for a tool with 9 parameters and no annotation coverage.

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 appropriately concise with just two sentences that directly state the tool's core functionality. There's no wasted verbiage or unnecessary elaboration. However, it could be better structured by front-loading the most critical information more explicitly, but overall it's efficient and to the point.

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 the tool's complexity (9 parameters, no output schema, no annotations), the description is incomplete. It doesn't explain what the tool returns beyond 'exchange rate and converted amount,' doesn't clarify the relationship between parameters, and doesn't address important contextual factors like data sources, accuracy, or limitations. For a financial data tool with multiple parameters affecting output format and historical data retrieval, this description leaves too many questions unanswered.

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 description provides zero information about parameters beyond what's already in the schema. With 0% schema description coverage (meaning schema properties lack descriptions), the description should compensate by explaining key parameters, but it doesn't mention any parameters at all. For a tool with 9 parameters including complex ones like date, timezone, and outputsize, this is a significant gap that leaves the agent guessing about parameter meanings and usage.

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's purpose: 'returns real-time exchange rate and converted amount for currency pair' with the specific scope of 'Works with forex and cryptocurrency.' This provides a specific verb (returns), resource (exchange rate and converted amount), and scope. However, it doesn't explicitly distinguish this tool from sibling tools like GetExchangeRate or GetForexPairs, which appear to offer similar 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 provides no guidance on when to use this tool versus alternatives. With multiple sibling tools that appear related to currency/exchange data (GetExchangeRate, GetForexPairs, GetCryptocurrencies), the description fails to explain what makes this tool unique or when it should be preferred over those alternatives. There's no mention of prerequisites, limitations, or comparative use cases.

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