show_docker_reference

THE RISK

Low Risk

Why show_docker_reference needs a policy

This tool provides read-only access to Docker command reference materials and documentation. It retrieves informational content without side effects, making it a Read category tool. The low severity reflects that misuse would only expose reference information, which is typically public documentation.

From the tool's definition Tool name 'show_docker_reference' and description 'Get Docker commands reference and cheatsheet' indicate retrieval of reference documentation without executing commands or modifying any systems.

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

POLICY

How to control show_docker_reference

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "show_docker_reference": {}
  }
}

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

Create a free account and register IT Tools MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about show_docker_reference

What does the show_docker_reference tool do? +

Get Docker commands reference and cheatsheet. It is categorised as a Read tool in the IT Tools MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on show_docker_reference? +

Register the IT Tools MCP Server MCP server in PolicyLayer and add a rule for show_docker_reference: 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 IT Tools MCP Server. Nothing to install.

What risk level is show_docker_reference? +

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

Can I rate-limit show_docker_reference? +

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

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

show_docker_reference is provided by the IT Tools MCP Server MCP server (wrenchpilot/it-tools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every IT Tools MCP Server tool call.

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

CHECK YOUR STACK →