component_create · UI/UX MCP Server MCP: Risk & Policy

WHAT IT DOES

What component_create does on UI/UX MCP Server

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

WHY IT NEEDS A POLICY

Why component_create needs a policy

The tool creates new UI components, which are data structures (files, code) that can be modified or deleted if needed. This is reversible (Write), not destructive. While it operates in a development context with integrated testing/animation tools, the core action is creation of component definitions.

From the tool's definition Tool name 'component_create' and description 'Create a new UI component with best practices' indicate creation of new component artifacts (files, configurations) within a design system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

component_create Rate-limited

component_create 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": {
    "component_create": {
      "limits": [
        {
          "counter": "component_create_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 UI/UX MCP Server, so you can run agents against it safely.

FAQ

Questions about component_create

What does the component_create tool do? +

Create a new UI component with best practices. It is categorised as a Write tool in the UI/UX 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 component_create? +

Register the UI/UX MCP Server MCP server in PolicyLayer and add a rule for component_create: 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 UI/UX MCP Server. Nothing to install.

What risk level is component_create? +

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

Can I rate-limit component_create? +

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

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

component_create is provided by the UI/UX MCP Server MCP server (willem4130/ui-ux-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.