Domain Overview Worldwide

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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it only says 'Fetch' and names the endpoint. It does not describe whether the operation is read-only, what the response contains, whether pagination or rate limits apply, or how the worldwide breakdown behaves. The description is minimal and leaves the agent without meaningful behavioral context.

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 sentence with no wasted words and includes the endpoint path, which is useful. However, the phrase 'domain worldwide overview' largely repeats the tool name and title, so it is not maximally informative per word.

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?

Given four parameters, no output schema, and no annotations, the description is too sparse. It does not explain the meaning of worldwide statistics, what fields like price/traffic/keywords represent in this context, or what the response will look like. An agent would struggle to correctly interpret results or choose this over domainOverview without additional external knowledge.

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 all four parameters are already documented in the schema with descriptions and defaults. The tool description adds no parameter-specific meaning, but the baseline of 3 applies because the schema already does the heavy lifting.

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 a specific verb ('Fetch') and a specific resource ('domain worldwide overview'), and includes the exact endpoint path (v1/domain/overview/worldwide), which helps distinguish it from the sibling domainOverview tool. However, it does not explicitly contrast it with domainOverview or other siblings, so it stops short of full differentiation.

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 provided about when to use this tool versus alternatives such as domainOverview, domainOverviewHistory, or domainOverviewDb. The agent is left to infer from the 'worldwide' qualifier alone, which is not sufficient given the large sibling list.

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