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

No annotations are provided, so the description carries the full behavioral burden. It only says 'via Open-Meteo' and gives no disclosure about side effects, parameter discard behavior, network use, or error conditions, which is a significant gap given the schema already describes each param's ephemeral nature.

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 irrelevant information, front-loading the key output. But its brevity is over-strict for a 9-parameter tool, which prevents it from earning a 5.

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 high complexity (9 parameters, no annotations, no output schema), a one-line purpose statement is grossly insufficient. Nothing explains which parameter is the locus of 'a place', what the expected output format is, or how this tool relates to the geolocation family.

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 and the description does not contradict the schema. However, it adds no meaning beyond the schema and fails to link any of the 9 unrelated-looking parameters (ref, url, city, feed, host, json, path, zone, query) to the geocoding function.

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 resource and output: latitude and longitude for a place, via Open-Meteo. It identifies the tool's specific function, but it lacks a direct verb and does not distinguish it from sibling tools such as weather-hint or timezone.

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 offers no when-to-use guidance, no mention of alternatives, and no exclusions. It only implies the tool produces coordinates, leaving the agent to infer when to choose this over siblings like weather-hint or iana-zones.

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