createPenPath

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/createpenpath.md

WHAT IT DOES

What createPenPath does on Spline MCP Server

AI agents use createPenPath 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 createPenPath is rated Medium

This tool creates a new pen path in the Spline 3D scene, which is a reversible creation operation typical of Write category. It does not delete data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial). The blast radius is medium—a malicious agent could add unwanted paths, but the user can undo/delete them, and it doesn't affect external systems.

From the tool's definition Tool name 'createPenPath' suggests creating a new path object in Spline 3D design tool. Sibling tools include 'add*' operations (addCamera, addDirectionalLight, addHanaElement, etc.) that are clearly Write operations creating new objects.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

createPenPath Rate-limited

createPenPath 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": {
    "createPenPath": {
      "limits": [
        {
          "counter": "createpenpath_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 createPenPath call is checked against it from then on.

FAQ

Questions about createPenPath

What does the createPenPath tool do? +

createPenPath 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 createPenPath? +

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

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

Can I rate-limit createPenPath? +

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

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

createPenPath 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 →