create_network

Create a Docker network

SERVERDocker SOURCE@ckreiling/mcp-server-docker

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/docker/create-network.md

WHAT IT DOES

What create_network does on Docker

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

RISK

Why create_network is rated Medium

This tool creates a new Docker network, which is a reversible operation that modifies the Docker infrastructure state. It does not execute arbitrary code, delete resources irreversibly, or move money.

From the tool's definition Tool name is 'create_network' and description states 'Create a Docker network' — a straightforward network creation action that modifies the Docker environment by adding a new network resource.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_network safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Docker, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_network, this is the rule to start with:

create_network Rate-limited

create_network 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_network": {
      "limits": [
        {
          "counter": "create_network_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Docker, apply this rule, and every create_network call is checked against it from then on.

FAQ

Questions about create_network

What does the create_network tool do? +

Create a Docker network. It is categorised as a Write tool in the Docker 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_network? +

Register the Docker MCP server in PolicyLayer and add a rule for create_network: 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 Docker. Nothing to install.

What risk level is create_network? +

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

Can I rate-limit create_network? +

Yes. Add a rate_limit block to the create_network 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_network completely? +

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

create_network is provided by the Docker MCP server (@ckreiling/mcp-server-docker). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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