Medium Risk

write_range_config

Write range configuration to file with automatic validation. Creates directories as needed.

How to control write_range_config ↓

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

Medium Risk

This tool creates or modifies configuration files for cybersecurity training ranges. While it is reversible (files can be edited or deleted), it directly controls the configuration of virtualized security environments. Misuse could alter training range configurations in unintended ways, affecting multiple users or causing service disruption.

From the tool's definition Tool name includes 'write' and description states 'Write range configuration to file'. The function creates or modifies configuration files with 'automatic validation' and 'creates directories as needed', indicating file system modifications.

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

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

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

write_range_config 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 LudusMCP 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 →

Free to start. No card required.

Go deeper

What does the write_range_config tool do? +

Write range configuration to file with automatic validation. Creates directories as needed. It is categorised as a Write tool in the LudusMCP 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 write_range_config? +

Register the LudusMCP Server MCP server in PolicyLayer and add a rule for write_range_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 LudusMCP Server. Nothing to install.

What risk level is write_range_config? +

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

Can I rate-limit write_range_config? +

Yes. Add a rate_limit block to the write_range_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 write_range_config completely? +

Set action: deny in the PolicyLayer policy for write_range_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 write_range_config? +

write_range_config is provided by the LudusMCP Server MCP server (noctedefensor/ludusmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every LudusMCP Server tool call.

Deterministic rules across all 29 LudusMCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

29 LudusMCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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