serpchecker_serps

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. It merely says 'Get SERP results' without revealing side effects, rate limits, required permissions, or what the response contains. While it implies a read operation, it doesn't disclose any limitations or output structure, leaving the agent underinformed.

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, front-loaded sentence: 'Get SERP results with all metrics and snapshot.' It is concise, contains no filler words, and every word contributes meaning. It's an example of efficient prose.

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 three parameters (including nested object types), no output schema, no annotations, and many sibling tools. The description fails to explain what 'snapshot' means, how the endpoints should be invoked, or what the response includes. This minimal description is inadequate for an agent to correctly construct a request, especially without additional context.

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 description coverage is 100%—each parameter has a description. The tool description itself adds no parameter-specific meaning beyond the schema. The mention of 'all metrics and snapshot' vaguely hints at the output, but it doesn't clarify how parameters like 'body' or 'query' affect behavior. Baseline 3 is appropriate given high schema coverage.

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 tool's function: retrieving SERP results with all metrics and snapshot. It uses a specific verb ('Get') and resource ('SERP results'), and adds scope details ('with all metrics and snapshot') that distinguish it from simpler sibling tools like serpchecker_snapshot. However, it doesn't explicitly name alternatives or mention the keyword dependency, so it falls short of a perfect 5.

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 provides no guidance on when to use this tool versus alternatives. There's no mention of scenarios, prerequisites, or exclusions. The phrase 'with all metrics and snapshot' implies comprehensive output but doesn't offer explicit usage context. This is a clear gap for an API with many sibling tools.

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