CVE 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. It effectively describes key behavioral traits: it performs health checks on specific components (NVD connectivity, KEV catalog, cache), and critically warns about rate limiting ('pings NVD without rate limiting'), which is essential for the agent to understand potential impacts and usage constraints.

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 front-loaded with the core purpose in the first sentence, followed by a concise note on usage constraints. Every sentence adds value: the first explains what the tool does, and the second provides critical behavioral guidance. There is no wasted text, making it highly efficient and well-structured.

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 low complexity (0 parameters, no annotations, but with an output schema), the description is complete. It clearly states the purpose, usage guidelines, and behavioral traits. Since an output schema exists, the description does not need to explain return values, and it adequately covers all necessary context for the agent to use the tool correctly.

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 0 parameters with 100% coverage, so no parameter documentation is needed. The description does not mention parameters, which is appropriate. A baseline of 4 is applied since it compensates adequately by focusing on the tool's purpose and behavior without redundant parameter info.

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 specific action ('Check the health') and the resource ('CVE MCP server'), with explicit details about what is checked: NVD connectivity, KEV catalog status, and cache statistics. It distinguishes itself from sibling tools by focusing on server health rather than vulnerability analysis or scanning, making the purpose highly specific and well-defined.

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 explicit guidance on when to use this tool (to check server health) and when not to use it ('do not call it in a loop'), with a clear reason (it pings NVD without rate limiting). This directly addresses usage context and exclusions, helping the agent avoid misuse in repetitive calls.

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