cybersecurity-vuln-mcp

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

With no annotations, the description carries the burden of disclosure. It successfully conveys the deadline-filtering behavior, but omits operational details like read-only safety, result sorting (presumably by deadline), or handling of empty result sets.

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?

Perfectly concise at 9 words in a single sentence. Front-loaded with action ('Get'), specific resource ('CISA KEV vulnerabilities'), and filtering logic without 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 simple 2-parameter schema and clear domain scope (vulnerability management), the description is sufficient for invocation despite lacking output schema. It appropriately assumes CISA KEV domain knowledge for a specialized security tool.

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?

With 50% schema coverage (only 'days' described), the description adds semantic context via 'upcoming' which aligns with the 'days' parameter concept, but fails to compensate for the undocumented 'limit' parameter (no mention of result count/pagination).

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 uses a specific resource ('CISA KEV vulnerabilities') and clear filtering logic ('upcoming remediation deadlines'). However, it does not explicitly differentiate from siblings like 'vuln_kev_latest' (which likely returns recent additions) or 'vuln_search'.

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 phrase 'upcoming remediation deadlines' implies the use case (monitoring imminent due dates), but provides no explicit guidance on when to use this versus 'vuln_kev_latest' or general search tools, nor prerequisites for invocation.

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