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

The description mentions Open-Meteo as an external source, but it does not disclose side effects, network behavior, rate limits, or whether data is cached. No annotations are provided, and the schema descriptions inconsistently mention 'discarded' data without clarifying actual behavior.

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, clear sentence and is appropriately brief. However, the schema contains many redundant and confusing placeholder-like descriptions that add noise rather than value.

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?

The description does not specify the expected input parameter, output format, error behavior, or examples. With nine optional parameters and no output schema, an agent has insufficient context to reliably invoke the tool.

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 has nine unrelated, all-optional parameters with generic or misleading descriptions (e.g., city for a 'weather hint', query for a 'length check'). It is unclear which parameter represents the 'place' for which coordinates are returned, and no parameter is required.

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 states the tool returns latitude and longitude for a place via Open-Meteo, which is a specific and useful purpose. It distinguishes the tool from weather, timezone, and URL-oriented siblings, though it lacks an explicit verb like 'get' or 'resolve.'

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?

There is no guidance on when to use this tool versus sibling tools such as weather-hint or timezone. The description does not mention conditions, prerequisites, or typical use cases.

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