create_sdf_text

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-sdf-text.md

WHAT IT DOES

What create_sdf_text does on tdmcp — TouchDesigner MCP server

AI agents use create_sdf_text 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_sdf_text is rated Medium

This tool creates new visual components (Text TOP, GLSL TOP) and wires them together in a TouchDesigner project. It is a creative/generative Write operation that constructs new content in the project graph. It does not delete data, execute arbitrary code, or involve finances. Severity is medium because misuse could clutter or corrupt a project's node graph, but effects are reversible by removing the created nodes.

From the tool's definition 'Raymarch a text string as a signed-distance-field 3D slab: a Text TOP renders the glyphs to a mask, and a GLSL TOP treats that mask as an extruded distance field' — creates new nodes/operators in TouchDesigner

Attacks that exploit this kind of access

RECOMMENDED RULE

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

create_sdf_text Rate-limited

create_sdf_text 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_sdf_text": {
      "limits": [
        {
          "counter": "create_sdf_text_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_sdf_text call is checked against it from then on.

FAQ

Questions about create_sdf_text

What does the create_sdf_text tool do? +

Raymarch a text string as a signed-distance-field 3D slab: a Text TOP renders the glyphs to a mask, and a GLSL TOP treats that mask as an extruded distance field (glyph coverage in XY, closed by two Z planes at ±depth/2) so the letters read as solid, lit, rim-highlit 3D volumes that can spin. Distinct from create_sdf_field (primitive CSG only, no text) and create_text_3d (mesh-extruded text SOP) — this is the raymarched distance-field text look. The mask→SDF is approximate (coverage-derived, no external font SDF atlas required) and eased by. 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_sdf_text? +

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

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

Can I rate-limit create_sdf_text? +

Yes. Add a rate_limit block to the create_sdf_text 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_sdf_text completely? +

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

create_sdf_text 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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