NexusForge EU Finance

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 states the return format ('latest annual rate of change (%) per country') and data source ('Eurostat'), which adds useful context. However, it doesn't mention potential limitations like data freshness, rate limits, authentication requirements, or error conditions that would be important for a data retrieval tool.

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 perfectly concise with two sentences that each earn their place: the first defines the tool's purpose and output, the second specifies the data source. No wasted words, and the most important information (what the tool does) is front-loaded.

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 read-only data retrieval tool with 2 parameters and 100% schema coverage, the description provides adequate context about what data is returned and its source. The main gap is the lack of output schema, so the description doesn't specify the exact structure of returned data beyond 'rate of change (%) per country'. However, given the tool's relative simplicity, this is a minor omission.

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 100%, so the schema already fully documents both parameters. The description doesn't add any parameter-specific information beyond what's in the schema. The baseline score of 3 is appropriate when the schema does all the parameter documentation work.

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 ('Get HICP inflation rates'), resource ('for EU countries'), and output format ('latest annual rate of change (%) per country'). It distinguishes this tool from siblings by specifying it focuses on inflation data rather than GDP, unemployment, exchange rates, or broader economic comparisons.

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 context by mentioning 'EU countries' and 'Eurostat' source, but doesn't explicitly state when to use this tool versus alternatives like get_eu_gdp or get_eu_unemployment. No guidance is provided about when-not-to-use scenarios or prerequisites for accessing the data.

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