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

No tool-level annotations are provided, so the description carries the burden of disclosing behavior. It mentions Open-Meteo, implying an external call, but does not state side effects, failure modes, data retention, or whether anything is mutated. Some parameter descriptions mention discarding data, but the main description does not.

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, tight sentence with no unnecessary words. It is front-loaded with the output type and method, making it easy to scan.

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?

Given the complex input schema with nine optional parameters and no required fields, the description is incomplete. It does not explain which parameter supplies the place, what the expected input format is, what the output shape looks like, or what error behavior to expect.

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. The description adds minimal parameter meaning beyond the schema—it suggests a 'place' is involved but does not clarify which of the nine optional parameters should be used. The schema descriptions are present but some are unrelated to geocoding, leaving parameter selection ambiguous.

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 clearly identifies the resource (latitude and longitude) and the source (Open-Meteo), so an agent can infer that this tool returns coordinates for a place. It lacks an explicit verb such as 'get' or 'geocode', and it does not differentiate itself from sibling tools like weather-hint, but the core purpose is still 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?

The description provides no guidance on when to use this tool versus alternatives, when not to use it, or what inputs are appropriate. It is not misleading, but it offers no usage direction beyond the bare purpose.

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