Seo Api2 MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Get HTTP Headers' implies a read-only operation, but it doesn't disclose any behavioral traits such as whether it makes an actual HTTP request, potential rate limits, authentication needs, error handling, or what the output format might be. This leaves the agent with minimal actionable information.

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 extremely concise at just three words, with no wasted text. It's front-loaded and to the point, though this brevity contributes to its lack of detail. Every word earns its place by stating the core action, but it could benefit from additional context.

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 the tool's moderate complexity (involving HTTP operations), lack of annotations, no output schema, and a simple input schema, the description is incomplete. It doesn't explain what the tool returns (e.g., header key-value pairs), how it behaves (e.g., makes a GET request), or any limitations. This leaves significant gaps for an agent 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 input schema has 100% description coverage for its single parameter 'url', with an example provided. The description doesn't add any meaning beyond the schema—it doesn't explain what the URL is used for (e.g., to fetch headers from that endpoint) or any constraints. With high schema coverage, the baseline score is 3, as the schema adequately documents the parameter without extra help from the description.

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 'Get HTTP Headers' is a tautology that essentially restates the tool name. It specifies the verb 'Get' and resource 'HTTP Headers', but doesn't clarify what this actually means operationally (e.g., retrieving headers from a web request to a URL). While it distinguishes from most siblings (which focus on domains, SEO, etc.), it doesn't differentiate from potential similar tools like 'meta_tags_analyzer' or 'redirect_checker' that might also involve HTTP interactions.

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. It doesn't mention any context, prerequisites, or exclusions. For example, it doesn't specify if this is for debugging web requests, checking server responses, or other use cases, nor does it reference sibling tools that might overlap in functionality.

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