numbeo_indices_country

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

No annotations are provided, so the description carries the full burden. It notes that this is credential-free public data from numbeo.com, indicating no authentication needed. It also specifies the return structure (aggregate + city breakdown), adding behavioral context beyond the schema.

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 two sentences, front-loading the purpose and adding essential details about output and data source. No redundant or vague language.

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 tool with two simple parameters and no output schema, the description covers purpose and basic behavior. It could be improved by referencing how to discover valid index families, but it is sufficient for this level of complexity.

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 coverage is 100% with descriptions for 'country' and 'index'. The tool description does not add further meaning, such as listing valid index families or specifying the format for country names. It provides baseline clarity but no enrichment.

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 a Numbeo country's data for an index family, including aggregate data and city breakdowns. It distinguishes from siblings like numbeo_indices_city and numbeo_indices_rankings by focusing on country-level data.

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 data retrieval but does not explicitly state when to use this tool vs alternatives like numbeo_indices_city or numbeo_indices_rankings. No exclusions or conditions are provided, leaving the agent to infer context.

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