tools_katana
A execute tool on the Zebbern Kali MCP server.
This record as markdown: /tools/zebbern-zebbern-kali-mcp/tools-katana.md
What tools_katana does on Zebbern Kali MCP
AI agents invoke tools_katana to trigger actions in Zebbern Kali 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 tools_katana is rated High
Despite an empty description, the server context makes clear this is an offensive security tool. 'Katana' in the Kali Linux ecosystem refers to a fast web crawler/attack surface discovery tool. Given the sibling tools (credential dumping, password spraying, remote execution), this tool likely executes active reconnaissance or attack operations against target systems.
From the tool's definition Tool is part of 'Zebbern Kali MCP', a Kali Linux penetration testing toolkit. Katana is a well-known offensive security tool (fast web crawler/scanner by ProjectDiscovery, or the katana framework).
Attacks that exploit this kind of access
The rule that runs tools_katana safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Zebbern Kali MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tools_katana, this is the rule to start with:
tools_katana 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 Zebbern Kali MCP, apply this rule, and every tools_katana call is checked against it from then on.
Questions about tools_katana
tools_katana is a execute tool on the Zebbern Kali MCP server. It is categorised as a Execute tool in the Zebbern Kali MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Zebbern Kali MCP server in PolicyLayer and add a rule for tools_katana: 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 Zebbern Kali MCP. Nothing to install.
tools_katana 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 tools_katana 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 tools_katana. 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.
tools_katana is provided by the Zebbern Kali MCP server (zebbern/zebbern-kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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