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

There are no annotations, so the description must carry the burden of behavioral disclosure. 'Via Open-Meteo' hints at an external network lookup, but the description does not state whether the call is read-only, what errors may occur, whether there are rate limits, or what the response shape is.

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?

A single sentence with no filler; the core function and provider are front-loaded. It is as concise as a tool summary should be.

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?

Despite a rich seven-field schema and no output schema, the description does not explain which parameters are required or which one supplies the place. It leaves the agent to infer that 'city' is the relevant input and omits any mention of output format or constraints.

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 already provides descriptions for all seven parameters (ref, url, city, feed, host, json, path), so schema coverage is high. The tool description adds no parameter-level meaning and does not clarify which parameter is the intended 'place', but the schema's city description is sufficient for a baseline.

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 tool as a latitude/longitude lookup ('Latitude and longitude for a place') and names the provider (Open-Meteo). It implies a geocoding operation and helps set it apart from sibling tools like weather-hint, though it lacks an explicit verb such as 'Returns'.

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 geo-hint versus alternative tools. It does not mention that coordinates are needed for weather-hint or timezone, nor does it name any sibling or exclusion conditions.

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