nuclei_web_scan
Execute Nuclei web application security scan.
This record as markdown: /tools/seac-25-kali-security-mcp/nuclei-web-scan.md
What nuclei_web_scan does on Kali Security MCP
AI agents invoke nuclei_web_scan to trigger actions in Kali Security MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why nuclei_web_scan is rated High
This tool runs the Nuclei security scanner against web applications, which actively probes targets with exploit templates and vulnerability checks. It executes external operations against potentially live systems, making it Execute category. The blast radius is high because it can trigger intrusive security tests against targets, potentially causing disruption or being used offensively against unauthorized systems.
From the tool's definition Execute Nuclei web application security scan
Attacks that exploit this kind of access
The rule that runs nuclei_web_scan safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Kali Security MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nuclei_web_scan, this is the rule to start with:
nuclei_web_scan stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Kali Security MCP, apply this rule, and every nuclei_web_scan call is checked against it from then on.
Questions about nuclei_web_scan
Execute Nuclei web application security scan. It is categorised as a Execute tool in the Kali Security MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Kali Security MCP server in PolicyLayer and add a rule for nuclei_web_scan: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Kali Security MCP. Nothing to install.
nuclei_web_scan is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the nuclei_web_scan rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for nuclei_web_scan. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
nuclei_web_scan is provided by the Kali Security MCP server (seac-25/kali-security-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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