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

With no annotations, the description carries the full burden of behavioral disclosure, but it only says the tool returns coordinates. It does not mention the likely external Open-Meteo network call, how inputs are handled, or any side effects or return behavior.

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 compact sentence with no wasted words and easily front-loaded information. However, given the tool's 9-parameter schema and lack of annotations, this brevity may under-serve the agent's need for context.

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?

There is no output schema or annotations, and the one-sentence description does not explain what the tool returns, how to specify the place among the 9 optional parameters, or how it relates to sibling hint tools. This is incomplete for reliable invocation.

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 has 100% parameter description coverage, so the baseline is 3. The description adds no parameter-level meaning and notably fails to indicate which parameter represents the 'place' (likely city), leaving interpretation to the schema.

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 the tool provides latitude and longitude for a place via Open-Meteo, which communicates a clear resource and outcome. However, it lacks an explicit verb and does not differentiate it from siblings like 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 gives no guidance about when to use this tool versus alternatives such as weather-hint, timezone, or iana-zones. There is no mention of use cases, prerequisites, or exclusions, leaving the agent without routing information.

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