docker-prune

Remove unused Docker objects (images, containers, networks, volumes)

SERVERDocker MCP Server SOURCE0xshariq/docker-mcp-server

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xshariq-docker-mcp-server/docker-prune.md

WHAT IT DOES

What docker-prune does on Docker MCP Server

AI agents call docker-prune to permanently remove resources in Docker MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why docker-prune is rated Critical

The prune operation permanently deletes Docker objects without recovery. While it targets 'unused' resources, the deletion is irreversible and could cause data loss if a container or volume is mistakenly marked as unused or if the agent misidentifies which resources are truly expendable. This is unambiguously a destructive operation with high blast radius in a production environment.

From the tool's definition Tool name 'docker-prune' and description 'Remove unused Docker objects (images, containers, networks, volumes)' indicates irreversible deletion of Docker resources.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs docker-prune safely

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

docker-prune Hidden

docker-prune is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "docker-prune"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about docker-prune

What does the docker-prune tool do? +

Remove unused Docker objects (images, containers, networks, volumes). It is categorised as a Destructive tool in the Docker MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on docker-prune? +

Register the Docker MCP Server MCP server in PolicyLayer and add a rule for docker-prune: 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-prune? +

docker-prune is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit docker-prune? +

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

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

docker-prune 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.

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