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crowdsecurity

crowdsec-local-mcp

Official

fetch_nuclei_exploit

Get Nuclei templates for any CVE to create targeted WAF rules.

Instructions

Retrieve nuclei templates from the official repository for a CVE to help with generation of WAF rules

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
cveYesCVE identifier to search for (e.g. CVE-2024-12345)
Behavior3/5

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

No annotations provided; description only indicates a read operation without detailing authentication, rate limits, failure modes, or what happens if CVE not found.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence of 16 words, directly front-loaded with purpose. No unnecessary text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple retrieval tool with one parameter, the description adequately explains purpose and context, but could mention return format or error behavior for full completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% and the description adds no extra meaning beyond the schema's 'CVE identifier to search for' with an example. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb (retrieve), resource (nuclei templates from official repository), and context (for a CVE to help generate WAF rules). It is distinct from sibling tools which involve WAF rule generation, deployment, or scenario management.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies use when needing nuclei templates for a CVE to aid WAF rule generation, but does not explicitly state when to avoid or mention alternatives among sibling tools.

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

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