retirejs_scan
Scan for vulnerable JavaScript libraries with retire.js
This record as markdown: /tools/alessandroannini-kali-mcp-server/retirejs-scan.md
What retirejs_scan does on Kali Linux MCP Server
AI agents invoke retirejs_scan to trigger actions in Kali Linux MCP Server. 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 retirejs_scan is rated High
This tool runs an external security scanning utility (retire.js) which actively probes targets for vulnerable JavaScript libraries. It executes code/tooling in a containerized Kali Linux environment against potentially external targets, making it Execute category.
From the tool's definition 'Scan for vulnerable JavaScript libraries with retire.js' — executes the retire.js security scanning tool against a target
Attacks that exploit this kind of access
The rule that runs retirejs_scan safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Kali Linux MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For retirejs_scan, this is the rule to start with:
retirejs_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 Linux MCP Server, apply this rule, and every retirejs_scan call is checked against it from then on.
Questions about retirejs_scan
Scan for vulnerable JavaScript libraries with retire.js. It is categorised as a Execute tool in the Kali Linux MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Kali Linux MCP Server MCP server in PolicyLayer and add a rule for retirejs_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 Linux MCP Server. Nothing to install.
retirejs_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 retirejs_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 retirejs_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.
retirejs_scan is provided by the Kali Linux MCP Server MCP server (alessandroannini/kali-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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