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 only states the core function and does not disclose what happens to inputs (some are described as 'discarded' in the schema but not in the tool description) or any side effects or output format.

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 and front-loads the primary function. However, its brevity omits necessary context about the parameter set, so it earns a high but not perfect score.

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?

With 9 optional parameters and no output schema, the description is inadequate to guide correct invocation. It does not explain the role of each parameter, how they relate to the geolocation function, or what the tool returns. An agent would struggle to use it correctly.

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 schema already describes each parameter in detail (100% coverage), but the description adds no meaningful link between the stated geolocation purpose and the many unrelated parameters. It fails to clarify which parameter is the 'place' or how others are used.

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 names a specific function (latitude/longitude via Open-Meteo) but the input schema contains 9 unrelated parameters (ref, url, feed, host, json, path, zone, query), making the tool's actual scope ambiguous. It distinguishes the core purpose but not the full range of behaviors.

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 guidance is given on when to use this tool versus sibling tools like weather-hint or timezone, nor which of the 9 parameters is appropriate for a given call. The agent is left to infer usage from the schema alone.

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