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 mentions fetching data 'concurrently' from multiple sources (NVD + EPSS), which adds useful context about performance/behavior. However, it doesn't disclose other traits like rate limits, authentication needs, error handling, or response format details. The description doesn't contradict any annotations (since none exist).

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 efficiently structured with a clear purpose statement in the first sentence, followed by a concise 'Args:' section. Every sentence adds value: the first defines scope and content, the second explains data sources, and the parameter explanation is necessary. No wasted words or redundancy.

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 (single parameter, comprehensive data aggregation), no annotations, but with an output schema present, the description is reasonably complete. It covers the purpose, data sources, and parameter semantics adequately. The output schema likely handles return value documentation, so the description doesn't need to explain those details. However, it could benefit from more behavioral context (e.g., performance characteristics, error cases).

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 0%, so the description must compensate. It adds meaningful semantics by explaining the cve_id parameter as a 'CVE identifier' with an example (CVE-2021-44228), clarifying format expectations beyond the schema's basic string type. With only one parameter, this provides adequate compensation for the lack of schema descriptions.

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 verb 'Get' and the resource 'comprehensive one-page summary of a CVE', listing specific content elements (severity, EPSS, KEV status, description, weaknesses, timeline) and data sources (NVD + EPSS). It effectively distinguishes this tool from sibling tools like get_cve_timeline, get_epss_score, and lookup_cve by emphasizing its comprehensive, multi-source summary nature.

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 implies usage context by specifying it fetches 'NVD + EPSS concurrently' and provides a comprehensive summary, suggesting it's for obtaining an all-in-one overview rather than specific data points. However, it doesn't explicitly state when to use alternatives like get_cve_timeline for timeline-only data or get_epss_score for EPSS-only data, nor does it mention exclusions.

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