extract_palette

Sample dominant colors from a TOP by capturing its preview PNG and running deterministic k-means on the decoded RGB pixels. Returns

SERVERtdmcp — TouchDesigner MCP server SOURCE@dpantani/tdmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-pantani-tdmcp/extract-palette.md

WHAT IT DOES

What extract_palette does on tdmcp — TouchDesigner MCP server

AI agents call extract_palette to retrieve information from tdmcp — TouchDesigner MCP server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why extract_palette is rated Low

This tool retrieves and analyzes pixel data from a TOP (TouchDesigner operator) to extract color information. It performs read-only image analysis with k-means clustering on existing preview data. There are no side effects, no modifications to the project state, no execution of code, and no destructive or financial implications.

From the tool's definition Tool performs sampling and analysis of existing visual data ('Sample dominant colors from a TOP by capturing its preview PNG and running deterministic k-means on the decoded RGB pixels'). No data is modified, deleted, or executed—only queried and analyzed.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

extract_palette Allowed

extract_palette is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "extract_palette": {}
  }
}

ALLOW ONLY 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 extract_palette call is checked against it from then on.

FAQ

Questions about extract_palette

What does the extract_palette tool do? +

Sample dominant colors from a TOP by capturing its preview PNG and running deterministic k-means on the decoded RGB pixels. Returns. It is categorised as a Read tool in the tdmcp — TouchDesigner MCP server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on extract_palette? +

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

extract_palette is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit extract_palette? +

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

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

extract_palette 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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