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

With no annotations, the description alone is responsible for behavioral disclosure. It reveals the dependence on an external service ('via Open-Meteo') but does not state whether it is a read-only lookup, what network errors can occur, or whether inputs are discarded after use.

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 sentence without unnecessary words. It leads with the required output and method, making it structurally efficient; however, the brevity comes at the cost of omitted practical details.

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?

A tool with nine optional parameters and no output schema or annotations demands far more context than a one-line summary. It does not explain how to select the relevant input or interpret the result, making the agent rely on other sources to invoke it correctly.

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 schema provides 100% parameter descriptions, so the baseline is 3. The phrase 'for a place' hints at a location input but does not identify which of the nine parameters provides the place, so the description adds only negligible semantic value beyond 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 returns latitude and longitude for a place via Open-Meteo, which clearly identifies the resource and data source. It does not explicitly compare against sibling tools, but none of the siblings seem to offer geocoding, so the purpose is reasonably distinct.

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, which parameter to supply, or how it compares to alternatives. The description only implies a functional role without any instructional direction, making it usable only if the agent already knows the tool.

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