generate_component · UI Preset MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_component does on UI Preset MCP Server

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

WHY IT NEEDS A POLICY

Why generate_component needs a policy

This is a Write operation because it creates new React component code that will be added to a project. While the generated components are typically reversible (can be deleted/modified later), the tool's primary function is generative—producing new code artifacts.

From the tool's definition The tool 'generates' a React component, creating new code artifacts that are persisted as project files. The description states it will create components 'from a preset template, with tokens resolved,' indicating creation/generation of new code rather than…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_component Rate-limited

generate_component 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": {
    "generate_component": {
      "limits": [
        {
          "counter": "generate_component_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 Preset MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_component

What does the generate_component tool do? +

Generate a React component from a preset template, with tokens resolved. Templates come from the active preset. It is categorised as a Write tool in the UI Preset 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 generate_component? +

Register the UI Preset MCP Server MCP server in PolicyLayer and add a rule for generate_component: 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 Preset MCP Server. Nothing to install.

What risk level is generate_component? +

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

Can I rate-limit generate_component? +

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

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

generate_component is provided by the UI Preset MCP Server MCP server (ncsound919/og-glass). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.