docker-volume · Docker MCP Server MCP: Risk & Policy

WHAT IT DOES

What docker-volume does on Docker MCP Server

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

WHY IT NEEDS A POLICY

Why docker-volume needs a policy

Volume management is primarily a Write operation—volumes can be created and modified reversibly. However, volumes can also be deleted (Destructive), and the broad 'Manage' verb suggests the tool likely spans both. Since the description does not explicitly confirm deletion capabilities, Write is assigned with high severity due to the potential to affect persistent data storage that multiple containers may depend on.

From the tool's definition Tool name 'docker-volume' and description 'Manage Docker volumes' indicate creation, modification, and deletion of persistent storage volumes. Docker volume management includes create, remove, and inspect operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

docker-volume Rate-limited

docker-volume 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": {
    "docker-volume": {
      "limits": [
        {
          "counter": "docker-volume_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 Docker MCP Server, so you can run agents against it safely.

FAQ

Questions about docker-volume

What does the docker-volume tool do? +

Manage Docker volumes. It is categorised as a Write tool in the Docker MCP 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 docker-volume? +

Register the Docker MCP Server MCP server in PolicyLayer and add a rule for docker-volume: 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 MCP Server. Nothing to install.

What risk level is docker-volume? +

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

Can I rate-limit docker-volume? +

Yes. Add a rate_limit block to the docker-volume 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 docker-volume completely? +

Set action: deny in the PolicyLayer policy for docker-volume. 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 docker-volume? +

docker-volume is provided by the Docker MCP Server MCP server (0xshariq/docker-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.