updateParametricObject

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/updateparametricobject.md

WHAT IT DOES

What updateParametricObject does on Spline MCP Server

AI agents use updateParametricObject 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 updateParametricObject is rated Medium

The tool modifies parametric objects within a Spline 3D scene, which is a reversible change (can be undone or re-updated). This fits the Write category—it creates or modifies data reversibly without deleting or executing arbitrary code. The blast radius is medium because incorrect parameter updates could corrupt a design but remain recoverable.

From the tool's definition Tool name 'updateParametricObject' and sibling context showing 'add' and 'apply' operations in a 3D design tool. The 'update' prefix indicates modification of existing objects. Description is empty, reducing confidence slightly.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

updateParametricObject Rate-limited

updateParametricObject 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": {
    "updateParametricObject": {
      "limits": [
        {
          "counter": "updateparametricobject_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 updateParametricObject call is checked against it from then on.

FAQ

Questions about updateParametricObject

What does the updateParametricObject tool do? +

updateParametricObject 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 updateParametricObject? +

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

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

Can I rate-limit updateParametricObject? +

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

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

updateParametricObject 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.

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