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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it only implies an external Open-Meteo call and coordinate output. It does not mention prerequisites, failure modes, side effects, or the fact that most schema parameters are described as discarded, leaving important behavior unexplained.

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 sentence with no filler and is front-loaded with the key output and provider. It is concise and easy to scan, though it is arguably too terse given the tool's schema complexity.

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 tool has no annotations, no output schema, and seven parameters with several marked as discarded, but the description provides only one sentence. It omits which parameter is required, what the output shape is, and how unrelated parameters should be treated, making the context incomplete for reliable invocation.

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 input schema has descriptions for all seven parameters, so the schema already carries parameter-level meaning and the baseline is 3. The description adds only the general notion of 'a place,' which likely maps to the city parameter but is not explicitly connected to it. It does not meaningfully improve parameter understanding beyond 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 states the tool returns latitude and longitude for a place via Open-Meteo, which conveys the core function clearly. It is a noun phrase rather than an explicit verb, but the intended action is evident. It does not differentiate from siblings like weather-hint, though the name and output make the distinction reasonably clear.

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 about when to use this tool versus alternatives such as weather-hint or timezone. The description also fails to specify which parameter supplies the 'place,' so an agent cannot confidently determine invocation conditions.

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