post_passes_3d

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/post-passes-3d.md

WHAT IT DOES

What post_passes_3d does on tdmcp — TouchDesigner MCP server

AI agents use post_passes_3d 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 post_passes_3d is rated Medium

This tool creates new nodes and structures (baseCOMP, glslTOP, textDAT, selectTOPs, null TOP) inside a TouchDesigner project. It is a Write operation — constructing/composing a network of operators — rather than executing arbitrary code or destroying existing data. The blast radius is medium since it modifies the project network but in a reversible and scoped manner.

From the tool's definition Compose a chain of 3D-aware post-processing passes... inside a new baseCOMP. Each pass is a glslTOP with companion textDAT... Passes run in fixed order... and emit a final null TOP

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs post_passes_3d 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 post_passes_3d, this is the rule to start with:

post_passes_3d Rate-limited

post_passes_3d 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": {
    "post_passes_3d": {
      "limits": [
        {
          "counter": "post_passes_3d_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 post_passes_3d call is checked against it from then on.

FAQ

Questions about post_passes_3d

What does the post_passes_3d tool do? +

Compose a chain of 3D-aware post-processing passes (SSAO, SSR, DOF, motion blur) inside a new baseCOMP. Each pass is a glslTOP with companion textDAT that samples color + depth + (optional) normal/velocity AOVs from selectTOPs. Passes run in fixed order SSAO → SSR → DOF → MB and emit a final null TOP (. 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 post_passes_3d? +

Register the tdmcp — TouchDesigner MCP server MCP server in PolicyLayer and add a rule for post_passes_3d: 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 post_passes_3d? +

post_passes_3d is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit post_passes_3d? +

Yes. Add a rate_limit block to the post_passes_3d 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 post_passes_3d completely? +

Set action: deny in the PolicyLayer policy for post_passes_3d. 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 post_passes_3d? +

post_passes_3d 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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