Medium Risk

session_create

Create a new pentest session (name, description, target)

How to control session_create ↓

What session_create does on Kali MCP Server

AI agents use session_create to create or update resources in Kali MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kali MCP Server environment.

Medium Risk

Why session_create needs a policy

This tool creates a new session object in a penetration testing environment, recording a target for subsequent security operations. It is a Write action (creating data), but carries high severity because it establishes the context/target for potentially destructive or intrusive pentest operations that follow.

From the tool's definition Create a new pentest session (name, description, target)

Documented attack patterns abuse exactly the kind of access session_create gives an agent:

How to control session_create

PolicyLayer is an MCP gateway — it sits between your AI agents and Kali MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for session_create:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "session_create": {
      "limits": [
        {
          "counter": "session_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

session_create stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Kali MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about session_create

What does the session_create tool do? +

Create a new pentest session (name, description, target). It is categorised as a Write tool in the Kali MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on session_create? +

Register the Kali MCP Server MCP server in PolicyLayer and add a rule for session_create: 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 MCP Server. Nothing to install.

What risk level is session_create? +

session_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit session_create? +

Yes. Add a rate_limit block to the session_create 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.

How do I block session_create completely? +

Set action: deny in the PolicyLayer policy for session_create. 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.

What MCP server provides session_create? +

session_create is provided by the Kali MCP Server MCP server (k3nn3dy-ai/kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kali MCP Server tool call.

Start from Kali MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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36 Kali MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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