get_country_region_settings

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

With no annotations provided, the description must disclose behavioral traits on its own. It does mention that the tool may require special permissions, which is a useful caution about potential failures. However, it does not explicitly state whether the operation is read-only (though 'get' implies it), nor does it describe any side effects, rate limits, or error behaviors. The single note about permissions adds some context but leaves significant gaps in behavioral transparency.

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 exceptionally concise: a single sentence for the main purpose followed by a short note on permissions. Every word earns its place, and the information is front-loaded with the core function before the caution. There is no fluff or repetition, making it a model of efficient communication.

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?

The tool has an output schema, so the description does not need to explain return values. However, it lacks details about the 'site_url' parameter usage and provides only minimal context about when to use the tool. The permission note is helpful, but the description does not cover prerequisites beyond permissions or clarify what 'country/region targeting settings' entails. Given the tool's simplicity (one required parameter), the description is marginally adequate but leaves room for improvement in clarity.

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 has 0% description coverage, and the tool description does not mention the 'site_url' parameter at all. Even though the parameter name is somewhat self-explanatory, the description provides no additional semantics about acceptable formats, required scope, or relationship to the settings being retrieved. The description fails to compensate for the lack of schema documentation, leaving the agent to infer parameter meaning from the name alone.

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 states the verb 'Get' and the resource 'country/region targeting settings'. It is specific and distinct from all sibling tools, which cover different domains like traffic, keywords, or crawl settings. The addition of 'targeting' clarifies the exact scope, and there is no ambiguity about what the tool retrieves.

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 includes a cautionary note about special permissions, which alerts the agent to a potential prerequisite. However, it does not explicitly state when to use this tool versus any alternative, nor does it provide context on the typical use case (e.g., retrieving targeting settings for a site). The note gives only a partial usage guideline, so the score reflects the lack of explicit when-to-use guidance.

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