addMaterialLayer

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/addmateriallayer.md

WHAT IT DOES

What addMaterialLayer does on Spline MCP Server

AI agents use addMaterialLayer 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 addMaterialLayer is rated Medium

This tool creates new material layers in a 3D design, which is a reversible modification to scene data. It does not delete data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial). The 'add' prefix across sibling tools confirms this is a creation/modification operation rather than a read-only query.

From the tool's definition Tool name 'addMaterialLayer' indicates creating or adding a new material layer to 3D objects in Spline. Sibling tools like 'addCamera', 'addDirectionalLight', 'addHanaElement' all perform additive operations that create new design elements.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

addMaterialLayer Rate-limited

addMaterialLayer 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": {
    "addMaterialLayer": {
      "limits": [
        {
          "counter": "addmateriallayer_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 addMaterialLayer call is checked against it from then on.

FAQ

Questions about addMaterialLayer

What does the addMaterialLayer tool do? +

addMaterialLayer 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 addMaterialLayer? +

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

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

Can I rate-limit addMaterialLayer? +

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

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

addMaterialLayer 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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