list_plugins

List installed plugins and their enabled status.

SERVERUnreal SOURCE@jjpxdev/unreal-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jjpxdev-unreal-mcp/list-plugins.md

WHAT IT DOES

What list_plugins does on Unreal

AI agents call list_plugins to retrieve information from Unreal without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_plugins is rated Low

This tool retrieves and displays information about installed plugins and their enabled/disabled states. It performs no modifications, executions, or destructive operations. It is a straightforward read operation that queries system configuration data, making it a low-severity Read category tool.

From the tool's definition Tool name 'list_plugins' combined with description 'List installed plugins and their enabled status' indicates a purely informational query operation that retrieves data about plugin configuration without modifying or executing anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_plugins safely

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

list_plugins Allowed

list_plugins is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about list_plugins

What does the list_plugins tool do? +

List installed plugins and their enabled status. It is categorised as a Read tool in the Unreal MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_plugins? +

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

What risk level is list_plugins? +

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

Can I rate-limit list_plugins? +

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

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

list_plugins is provided by the Unreal MCP server (@jjpxdev/unreal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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