createUIComponent

A write tool on the Spline MCP server.

SERVERSpline MCP Server SOURCEaydinfer/spline-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aydinfer-spline-mcp-server/createuicomponent.md

WHAT IT DOES

What createUIComponent does on Spline MCP Server

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

RISK

Why createUIComponent is rated Medium

The tool creates UI components in Spline, which constitutes data modification. This is reversible (can be deleted), so it falls under Write rather than Execute or Destructive. The absence of a description lowers confidence slightly, but the naming pattern and context of sibling tools on a design platform clearly indicate this is a creation/modification operation.

From the tool's definition Tool named 'createUIComponent' with no description provided. Based on sibling tools like 'addObjectToUILayout', 'addHanaElement', and 'addHanaInteraction', this server performs reversible modifications to Spline 3D designs.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs createUIComponent safely

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

createUIComponent Rate-limited

createUIComponent 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": {
    "createUIComponent": {
      "limits": [
        {
          "counter": "createuicomponent_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about createUIComponent

What does the createUIComponent tool do? +

createUIComponent is a write tool on the Spline MCP Server MCP server. It is categorised as a Write tool in the Spline 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 createUIComponent? +

Register the Spline MCP Server MCP server in PolicyLayer and add a rule for createUIComponent: 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 Spline MCP Server. Nothing to install.

What risk level is createUIComponent? +

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

Can I rate-limit createUIComponent? +

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

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

createUIComponent is provided by the Spline MCP Server MCP server (aydinfer/spline-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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