createMaterial

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/creatematerial.md

WHAT IT DOES

What createMaterial does on Spline MCP Server

AI agents use createMaterial 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 createMaterial is rated Medium

Creating a material is a reversible Write operation—it adds a new asset to the design project that can be edited, deleted, or replaced. It does not execute arbitrary code, delete data irreversibly, or move money. Medium severity reflects that misuse could pollute the project with unwanted materials, but the impact is scoped to design assets and easily undone.

From the tool's definition Tool name 'createMaterial' in a 3D design context (Spline MCP Server) indicates creation of a new material asset. Sibling tools like 'addCamera', 'addDirectionalLight', 'addMaterialLayer' confirm this server performs asset creation operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs createMaterial 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 createMaterial, this is the rule to start with:

createMaterial Rate-limited

createMaterial 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": {
    "createMaterial": {
      "limits": [
        {
          "counter": "creatematerial_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 createMaterial call is checked against it from then on.

FAQ

Questions about createMaterial

What does the createMaterial tool do? +

createMaterial 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 createMaterial? +

Register the Spline MCP Server MCP server in PolicyLayer and add a rule for createMaterial: 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 createMaterial? +

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

Can I rate-limit createMaterial? +

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

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

createMaterial 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

More on Spline MCP Server, and thousands of servers like it.

This server

All 145 Spline MCP Server tools →

Across the catalogue

The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →