execute_python_script

SERVERtdmcp — TouchDesigner MCP server SOURCE@dpantani/tdmcp

High RISK CLASS

Category Execute

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/execute-python-script.md

WHAT IT DOES

What execute_python_script does on tdmcp — TouchDesigner MCP server

AI agents invoke execute_python_script to trigger actions in tdmcp — TouchDesigner MCP server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why execute_python_script is rated High

This tool permits execution of arbitrary Python code within the TouchDesigner process, giving an AI agent unfettered access to modify visual systems, access sensitive project data, trigger external operations, or corrupt the runtime environment.

From the tool's definition Tool explicitly described as 'run an arbitrary Python script inside the TouchDesigner process' and labeled as 'Escape hatch' for unrestricted operations. The ability to run arbitrary code without constraints represents the highest-risk Execute category.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

execute_python_script Rate-limited

execute_python_script stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_python_script": {
      "limits": [
        {
          "counter": "execute_python_script_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 execute_python_script call is checked against it from then on.

FAQ

Questions about execute_python_script

What does the execute_python_script tool do? +

Escape hatch — run an arbitrary Python script inside the TouchDesigner process. Prefer the structured tools (find_td_nodes, get_td_node_parameters, update_td_node_parameters, summarize_td_errors, snapshot_td_graph, …); reach for this only when no structured tool can express the operation. Code runs in TD only, never on the local machine. It is categorised as a Execute tool in the tdmcp — TouchDesigner MCP server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_python_script? +

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

execute_python_script is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit execute_python_script? +

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

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

execute_python_script 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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