create_pbr_scene

SERVERtdmcp — TouchDesigner MCP server SOURCE@dpantani/tdmcp

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/io-github-pantani-tdmcp/create-pbr-scene.md

WHAT IT DOES

What create_pbr_scene does on tdmcp — TouchDesigner MCP server

AI agents use create_pbr_scene to create or update resources in tdmcp — TouchDesigner MCP server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your tdmcp — TouchDesigner MCP server environment.

RISK

Why create_pbr_scene is rated Medium

This tool creates and configures visual system components (Geometry COMP, PBR MAT, Environment Light) within a TouchDesigner project. These are reversible modifications to the project structure, not destructive deletions. While it modifies the project state, the effects can be undone within TouchDesigner.

From the tool's definition The tool description states it will 'Build a physically-based 3D scene' by creating 'a Geometry COMP holding the chosen primitive' and 'shaded by a PBR MAT' and 'lit by an Environment Light'.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_pbr_scene safely

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

create_pbr_scene Rate-limited

create_pbr_scene 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": {
    "create_pbr_scene": {
      "limits": [
        {
          "counter": "create_pbr_scene_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 tdmcp — TouchDesigner MCP server, apply this rule, and every create_pbr_scene call is checked against it from then on.

FAQ

Questions about create_pbr_scene

What does the create_pbr_scene tool do? +

Build a physically-based 3D scene: a Geometry COMP holding the chosen primitive (sphere/torus/box) shaded by a PBR MAT (base colour, metallic, roughness), lit by an Environment Light for image-based lighting (fed a Constant TOP of. It is categorised as a Write tool in the tdmcp — TouchDesigner 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 create_pbr_scene? +

Register the tdmcp — TouchDesigner MCP server MCP server in PolicyLayer and add a rule for create_pbr_scene: 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 tdmcp — TouchDesigner MCP server. Nothing to install.

What risk level is create_pbr_scene? +

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

Can I rate-limit create_pbr_scene? +

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

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

create_pbr_scene is provided by the tdmcp — TouchDesigner MCP server MCP server (@dpantani/tdmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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