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

Annotations are absent, so the description carries the full behavioral disclosure burden. It reveals an external dependency on Open-Meteo, but it does not state whether the operation is read-only, what happens to the input, whether network failures are possible, or what the response format looks like. Some behavior is implied, but most is left undisclosed.

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 short sentence with no filler, and the core output is front-loaded. It is concise and easy to scan, though its brevity contributes to the overall lack of completeness.

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 nine optional parameters, no annotations, and no output schema, the one-line description is insufficient for reliable invocation. It does not say which parameter carries the place, what shape the latitude/longitude result takes, or whether the other parameters are ignored. The basic purpose is present, but too much essential context is missing.

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 baseline is 3 even though the description adds no parameter-level detail. The phrase 'a place' loosely suggests the city parameter, but the description does not explicitly map 'place' to any of the nine optional parameters or clarify that the other eight are irrelevant. It neither meaningfully enhances nor directly contradicts the schema.

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 an output (latitude and longitude) and a provider (Open-Meteo), which suggests a geocoding purpose, but it lacks a verb and never explicitly says 'geocode a city' or 'return coordinates for a place'. It is somewhat distinguishable from siblings like weather-hint, but the lack of a clear action makes it only vaguely informative.

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 when-to-use guidance, no exclusion of alternatives, and no mention of when not to use this tool. The description only implies that it might be used when coordinates are needed, but it does not state this or compare against sibling tools such as weather-hint or timezone.

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