gau_discovery
A execute tool on the Nyxstrike MCP server.
This record as markdown: /tools/nyxstrike/gau-discovery.md
What gau_discovery does on Nyxstrike
AI agents invoke gau_discovery 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 gau_discovery is rated High
'gau' likely refers to 'getallurls' (gau), a reconnaissance tool that fetches known URLs from various sources for a target domain. On an offensive security/pentesting platform alongside tools like aircrack_ng, ai_reconnaissance_workflow, and ai_vulnerability_assessment, this tool almost certainly executes external reconnaissance operations against targets.
From the tool's definition Tool name 'gau_discovery' on a penetration testing platform; description is empty and uninformative.
Attacks that exploit this kind of access
The rule that runs gau_discovery 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 gau_discovery, this is the rule to start with:
gau_discovery 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 gau_discovery call is checked against it from then on.
Questions about gau_discovery
gau_discovery 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 gau_discovery: 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.
gau_discovery 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 gau_discovery 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 gau_discovery. 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.
gau_discovery 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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