create_histogram_scope

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-histogram-scope.md

WHAT IT DOES

What create_histogram_scope does on tdmcp — TouchDesigner MCP server

AI agents use create_histogram_scope 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_histogram_scope is rated Medium

The tool constructs and configures multiple TouchDesigner operators (TOPs, CHOPs, SOPs) to build a visual histogram system. This is a create/construct operation that modifies the TouchDesigner project state reversibly. While it doesn't execute arbitrary code or delete data, it does establish new components within the visual system.

From the tool's definition Tool creates a new histogram scope component within TouchDesigner (GLSL TOP, CHOP, SOP, and Null TOP) that modifies the project by adding visual analysis systems.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

create_histogram_scope Rate-limited

create_histogram_scope 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_histogram_scope": {
      "limits": [
        {
          "counter": "create_histogram_scope_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_histogram_scope call is checked against it from then on.

FAQ

Questions about create_histogram_scope

What does the create_histogram_scope tool do? +

Build a luminance (and optional per-channel RGB) histogram video scope for any TOP. Computes the histogram on the GPU using a GLSL TOP (bins×1 output), samples into a CHOP, normalises, and renders through choptoSOP → renderTOP. Output is a single Null TOP ready for previews or bind_to_channel. Implements the roadmap Milestone 2 histogram scope panel as a standalone focused tool. This is the single-scope, working histogram (the one create_video_scopes can. 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_histogram_scope? +

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

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

Can I rate-limit create_histogram_scope? +

Yes. Add a rate_limit block to the create_histogram_scope 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_histogram_scope completely? +

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

create_histogram_scope 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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