Low Risk

get_container_config

Get configuration for a common container. Args: container_name: Container name Returns: Container configuration

How to control get_container_config ↓

AI agents call get_container_config to retrieve information from Ludus FastMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

This tool retrieves container configuration information. The verb 'get' and the absence of any modification, deletion, or execution language confirm this is a read-only operation. The blast radius is minimal—exposure of container configuration could reveal system details but does not enable direct changes to the cyber range environment. No data is created, modified, or destroyed.

From the tool's definition Tool name is 'get_container_config' and description states 'Get configuration for a common container', indicating retrieval of existing data without modification.

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_container_config": {}
  }
}

get_container_config is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Ludus FastMCP — 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.
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Go deeper

What does the get_container_config tool do? +

Get configuration for a common container. Args: container_name: Container name Returns: Container configuration. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_container_config? +

Register the Ludus Fast MCP server in PolicyLayer and add a rule for get_container_config: 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 Ludus FastMCP. Nothing to install.

What risk level is get_container_config? +

get_container_config is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_container_config? +

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

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

get_container_config is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ludus FastMCP tool call.

Deterministic rules across all 201 Ludus FastMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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