CurrencyAndOil

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 calculation purpose but doesn't disclose behavioral traits such as whether it uses real-time rates, historical data, or assumptions about oil prices. No information on error handling, rate limits, or data sources is included.

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 that directly states the tool's purpose without unnecessary words. It's appropriately sized and front-loaded, with every part contributing essential information.

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 no annotations, 0% schema coverage, and no output schema, the description is incomplete. It lacks details on how the calculation is performed, what data sources are used, error conditions, and the format of results, making it inadequate for full contextual understanding.

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 description coverage is 0%, so the description must compensate. It adds meaning by specifying that the 'amount' parameter is in Euros, which isn't in the schema. However, it doesn't explain units, constraints, or provide examples, leaving gaps in parameter understanding.

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 specific action ('calculate') and resource ('barrels of Brent crude oil') with precise scope ('for a given amount in Euros'). It distinguishes from siblings like calculate_barrels_for_rub and calculate_barrels_for_usd by specifying the currency input (Euros).

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 when converting Euros to barrels, but doesn't explicitly state when to use this tool versus alternatives like get_eur_rate or calculate_barrels_for_usd. No guidance on prerequisites or exclusions is provided, leaving usage context partially ambiguous.

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