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

No annotations are provided, so the description carries the full behavioral burden. It only mentions 'via Open-Meteo', which implies an external remote call, but it says nothing about side effects, return shape, failure behavior, rate limits, or whether this is a read-only operation.

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 front-loaded sentence and contains no fluff. It is economical, but its brevity comes at the cost of missing needed operational detail.

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, no output schema, and no annotations, the description is too thin to let an agent confidently call this tool. It does not explain which parameter identifies the place, whether the result is returned, or how latitude and longitude are formatted.

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 structured schema already explains all 9 parameters. The description adds no parameter-level meaning beyond saying 'for a place', and with parameters like `ref`, `json`, and `path`, it remains unclear which parameter(s) should be 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 text 'Latitude and longitude for a place via Open-Meteo' clearly identifies the tool's output and input category, so an agent can see it resolves a place to coordinates. It does not name sibling alternatives or explain which sibling it replaces, so it falls just short of full differentiation.

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 indication of when this tool should be chosen over weather-hint, timezone, iana-zones, or any other sibling. The description simply states the result and does not provide context, exclusions, or alternative selection guidance.

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