material.create

Propose an evidence-bound appearance profile with no geometry authority.

SERVERVisionmcp SOURCEjoshuahickscorp/visionmcp

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/visionmcp/material.create.md

WHAT IT DOES

What material.create does on Visionmcp

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

RISK

Why material.create is rated Medium

The tool creates a new appearance/material profile. This is a Write operation — it proposes and records a new data artifact. It has no geometry authority and no indication of irreversible destruction, financial impact, or code execution. Severity is low given the scoped, non-destructive nature of creating a material profile.

From the tool's definition 'create' in tool name; 'Propose an evidence-bound appearance profile' in description

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs material.create safely

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

material.create Rate-limited

material.create 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": {
    "material.create": {
      "limits": [
        {
          "counter": "material.create_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 Visionmcp, apply this rule, and every material.create call is checked against it from then on.

FAQ

Questions about material.create

What does the material.create tool do? +

Propose an evidence-bound appearance profile with no geometry authority. It is categorised as a Write tool in the Visionmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on material.create? +

Register the Vision MCP server in PolicyLayer and add a rule for material.create: 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 Visionmcp. Nothing to install.

What risk level is material.create? +

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

Can I rate-limit material.create? +

Yes. Add a rate_limit block to the material.create 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 material.create completely? +

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

material.create is provided by the Vision MCP server (joshuahickscorp/visionmcp). 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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