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

No annotations are present and the description does not disclose side effects, network behavior, data handling, or failure modes. It only says 'via Open-Meteo', which implies an external call but does not clarify what is discarded or whether the operation is read-only.

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 with no filler or redundant wording. It states the essential output and service in minimal space.

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 and no output schema, this minimal description is not enough for an agent to know which input to supply, what response to expect, or how errors are surfaced. The complexity is high relative to the information provided.

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%, but the tool-level description does not map 'a place' to the `city` parameter, and most schema parameters (ref, feed, host, json, path, zone, query) appear unrelated to geocoding. The per-parameter descriptions add some information, yet the connection to the purpose is missing.

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 a concrete output (latitude and longitude) and the backing service (Open-Meteo), and it is distinguishable from sibling weather/geography tools. It lacks an explicit action verb and leaves 'place' vague, but the intent is 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 on when to call this tool, which parameter identifies the place, or how it relates to alternatives such as weather-hint or timezone. All parameters are optional in the schema, so an agent receives no help selecting the relevant input.

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