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

There are no annotations, so the description carries the full burden of behavioral disclosure. It reveals the Open-Meteo dependency and output type, but says nothing about error behavior, live API calls, or how the nine schema parameters are treated in practice.

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 compact one-liner with no filler and the core purpose front-loaded. It is somewhat under-specified, but that deficiency is better attributed to contextual completeness than to poor conciseness or structure.

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 no output schema, no annotations, nine optional parameters, and many sibling tools, a single sentence is insufficient. An agent cannot determine which parameter to supply, what the return format is, or how this tool differs from weather-hint and timezone.

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 parameter-level meaning; it never mentions the 'city' field or any other parameter, leaving the mapping from 'a place' to the schema implicit.

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 returns latitude and longitude for a place via Open-Meteo. This is a reasonably clear purpose and distinguishes it from weather-hint, though it omits an explicit verb and does not name the specific input parameter.

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 use geo-hint instead of sibling tools such as weather-hint or timezone. The description implies the tool is for places, but it does not state which parameters are relevant, how the tool relates to alternatives, or what prerequisites exist.

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