cybersecurity-vuln-mcp

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 only states the basic read operation ('Get') and resource type, omitting return structure, data source/freshness, pagination behavior, and safety confirmations that annotations would typically provide.

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?

Single sentence with action-fronted structure. No redundant words, though extreme brevity sacrifices behavioral details that could have been included without bloat.

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?

Sufficient for a simple two-parameter retrieval tool, but with no output schema and no annotations, the description could have disclosed the return format (list of CVEs with scores) or clarified the EPSS scoring domain to improve completeness.

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 coverage is 50% (limit parameter undocumented). The description mentions 'EPSS exploitation probability scores' which adds domain context for the threshold parameter, and 'highest' implies the ranking behavior that the limit parameter controls, providing partial compensation for the missing schema documentation.

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?

States specific verb (Get), resource (CVEs), and distinctive filter mechanism (EPSS exploitation probability scores). EPSS specificity implicitly distinguishes it from KEV-related siblings (vuln_kev_*) and search, though it lacks explicit comparative guidance.

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?

Contains no guidance on when to use this tool versus alternatives like vuln_search or vuln_trending, nor any prerequisites or conditions for invocation.

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