create_kasm_session · Kasm MCP Server v2 MCP: Risk & Policy

WHAT IT DOES

What create_kasm_session does on Kasm MCP Server v2

AI agents use create_kasm_session to create or update resources in Kasm MCP Server v2 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kasm MCP Server v2 environment.

WHY IT NEEDS A POLICY

Why create_kasm_session needs a policy

The tool name 'create_kasm_session' strongly implies creating a new containerized desktop session. This is a Write operation (creates a new resource). The description is empty, which lowers confidence slightly. Severity is medium because creating sessions consumes resources and could be misused to spin up many containers, but it is reversible (sessions can be destroyed).

From the tool's definition Tool name: create_kasm_session; description is empty. Inferred from name and server context (session management in Kasm Workspaces).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_kasm_session Rate-limited

create_kasm_session 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_kasm_session": {
      "limits": [
        {
          "counter": "create_kasm_session_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Kasm MCP Server v2, so you can run agents against it safely.

FAQ

Questions about create_kasm_session

What does the create_kasm_session tool do? +

create_kasm_session. It is categorised as a Write tool in the Kasm MCP Server v2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_kasm_session? +

Register the Kasm MCP Server v2 MCP server in PolicyLayer and add a rule for create_kasm_session: 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 Kasm MCP Server v2. Nothing to install.

What risk level is create_kasm_session? +

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

Can I rate-limit create_kasm_session? +

Yes. Add a rate_limit block to the create_kasm_session 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 create_kasm_session completely? +

Set action: deny in the PolicyLayer policy for create_kasm_session. 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 create_kasm_session? +

create_kasm_session is provided by the Kasm MCP Server v2 MCP server (roguedev-ai/kasm-mcp-server-v2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.