theharvester_scan
A execute tool on the Nyxstrike MCP server.
This record as markdown: /tools/nyxstrike/theharvester-scan.md
What theharvester_scan does on Nyxstrike
AI agents invoke theharvester_scan to trigger actions in Nyxstrike. 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 theharvester_scan is rated High
TheHarvester is a well-known OSINT/reconnaissance tool used to gather emails, subdomains, hosts, and other information about targets. On a penetration testing platform alongside tools like ai_reconnaissance_workflow and ai_vulnerability_assessment, this tool almost certainly executes active or passive reconnaissance scans against external targets.
From the tool's definition Tool name 'theharvester_scan' on a penetration testing platform; sibling tools include reconnaissance workflows, vulnerability assessment, and attack suites
Attacks that exploit this kind of access
The rule that runs theharvester_scan safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nyxstrike, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For theharvester_scan, this is the rule to start with:
theharvester_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 Nyxstrike, apply this rule, and every theharvester_scan call is checked against it from then on.
Questions about theharvester_scan
theharvester_scan is a execute tool on the Nyxstrike MCP server. It is categorised as a Execute tool in the Nyxstrike MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Nyxstrike MCP server in PolicyLayer and add a rule for theharvester_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 Nyxstrike. Nothing to install.
theharvester_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 theharvester_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 theharvester_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.
theharvester_scan is provided by the Nyxstrike MCP server (CommonHuman-Lab/nyxstrike). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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