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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. It does not mention network calls, error handling, rate limits, side effects, or what happens with invalid input. The schema notes some parameters are discarded, but the description itself is silent on all behavioral aspects.

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 concise, one sentence, and front-loads the core purpose. However, it is arguably too sparse for a tool with 9 parameters and no output schema, but conciseness itself is not penalized. It lacks structural elements like examples or param hints, but as a single-sentence definition it is efficient.

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 9 parameters and no output schema, the description is extremely incomplete. It does not specify which parameter is relevant, what the output format is, or any constraints. The agent would have to open the schema and infer behavior, which is insufficient for a complex tool.

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 no meaning beyond the schema; it does not indicate which parameter(s) should be used for geocoding or how they relate. With such a broad schema, the description fails to provide any interpretive value.

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 a clear purpose: returning latitude and longitude for a place via Open-Meteo. It uses a specific verb ('Latitude and longitude') and names the service, making the core function unambiguous. However, it does not differentiate from siblings like weather-hint, which also involves locations, and the broad schema (9 unrelated parameters) muddies what constitutes a 'place'.

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 guidance on when to use this tool versus alternatives. The description is a single sentence with no mention of conditions, exclusions, or related tools. Given many siblings (e.g., iana-zones, timezone, weather-hint), the agent has no basis for selection.

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