Seo Api2 MCP Server

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 fails completely. It doesn't indicate whether this is a read-only operation, whether it makes external API calls, what kind of suggestions it provides, or any behavioral characteristics. The description provides zero information about how the tool behaves beyond its name.

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?

While technically concise with just three words, this is a case of under-specification rather than effective conciseness. The description doesn't contain enough information to be useful, so its brevity is a liability rather than a virtue. A truly concise description would still convey essential information efficiently, but this fails to do so.

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 that this is a tool with no annotations, no output schema, and a completely inadequate description, the contextual completeness is severely lacking. The description doesn't explain what the tool returns, how suggestions are generated, what domain it operates in (SEO? advertising? content creation?), or any other contextual information needed to understand and use the tool effectively.

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% with a single parameter 'query' documented as 'Example value: laptop'. The description adds no additional parameter information beyond what's in the schema. Since schema coverage is complete, the baseline score of 3 is appropriate - the description doesn't need to compensate for schema gaps, but it also doesn't add any value regarding parameter meaning or usage.

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 'Keywords Suggestion Tool' is a tautology that merely restates the tool name without specifying what action it performs or what resource it operates on. It doesn't distinguish this tool from its many siblings (like keyword_density_checker or keyword_rank_checker) that also deal with keywords. The description lacks a clear verb-resource combination that would explain what this tool actually does.

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 absolutely no guidance about when to use this tool versus alternatives. With multiple keyword-related tools in the sibling list (keyword_density_checker, keyword_rank_checker), there's no indication of what makes this 'suggestion' tool different or when it should be preferred over those other options. The description offers no context about appropriate use cases or limitations.

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